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Add NN search method to be able to deal with multiple scales and
positions.
This commit is contained in:
parent
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@ -0,0 +1,53 @@
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# CIFAR-10 Search Just Center Example
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#
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# CIFAR is a convolutional nueral network designed to classify it's field of view into several
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# different object types and works on RGB video data.
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#
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# In this example we slide the LeNet detector window over the image and get a list of activations
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# where there might be an object. Note that use a CNN with a sliding window is extremely compute
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# expensive so for an exhaustive search do not expect the CNN to be real-time.
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import sensor, image, time, os, nn
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
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sensor.set_windowing((128, 128)) # Set 128x128 window.
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sensor.skip_frames(time=750) # Don't let autogain run every long.
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sensor.set_auto_gain(False) # Turn off autogain.
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sensor.set_auto_exposure(False) # Turn off whitebalance.
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# Load cifar10 network (You can get the network from OpenMV IDE).
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net = nn.load('/cifar10.network')
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# Faster, smaller and less accurate.
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# net = nn.load('/cifar10_fast.network')
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labels = ['airplane', 'automobile', 'bird', 'cat', 'deer', 'dog', 'frog', 'horse', 'ship', 'truck']
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clock = time.clock()
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while(True):
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clock.tick()
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img = sensor.snapshot()
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# net.search() will search an roi in the image for the network (or the whole image if the roi is not
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# specified). At each location to look in the image if one of the classifier outputs is larger than
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# threshold the location and label will be stored in an object list and returned. At each scale the
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# detection window is moved around in the ROI using x_overlap (0-1) and y_overlap (0-1) as a guide.
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# If you set the overlap to 0.5 then each detection window will overlap the previous one by 50%. Note
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# the computational work load goes WAY up the more overlap. Finally, for mult-scale matching after
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# sliding the network around in the x/y dimensions the detection window will shrink by scale_mul (0-1)
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# down to min_scale (0-1). For example, if scale_mul is 0.5 the detection window will shrink by 50%.
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# Note that at a lower scale there's even more area to search if x_overlap and y_overlap are small...
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# contrast_threshold skips running the CNN in areas that are flat.
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# Setting x_overlap=-1 forces the window to stay centered in the ROI in the x direction always. If
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# y_overlap is not -1 the method will search in all vertical positions.
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# Setting y_overlap=-1 forces the window to stay centered in the ROI in the y direction always. If
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# x_overlap is not -1 the method will serach in all horizontal positions.
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for obj in net.search(img, threshold=0.6, min_scale=0.4, scale_mul=0.8, \
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x_overlap=-1, y_overlap=-1, contrast_threshold=0.5):
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print("Detected %s - Confidence %f%%" % (labels[obj.index()], obj.value()))
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img.draw_rectangle(obj.rect(), color=(255, 0, 0))
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print(clock.fps())
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# CIFAR-10 Search Whole Window Example
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#
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# CIFAR is a convolutional nueral network designed to classify it's field of view into several
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# different object types and works on RGB video data.
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#
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# In this example we slide the LeNet detector window over the image and get a list of activations
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# where there might be an object. Note that use a CNN with a sliding window is extremely compute
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# expensive so for an exhaustive search do not expect the CNN to be real-time.
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import sensor, image, time, os, nn
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.RGB565) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
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sensor.set_windowing((128, 128)) # Set 128x128 window.
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sensor.skip_frames(time=750) # Don't let autogain run every long.
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sensor.set_auto_gain(False) # Turn off autogain.
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sensor.set_auto_exposure(False) # Turn off whitebalance.
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# Load cifar10 network (You can get the network from OpenMV IDE).
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net = nn.load('/cifar10.network')
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# Faster, smaller and less accurate.
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# net = nn.load('/cifar10_fast.network')
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labels = ['airplane', 'automobile', 'bird', 'cat', 'deer', 'dog', 'frog', 'horse', 'ship', 'truck']
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clock = time.clock()
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while(True):
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clock.tick()
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img = sensor.snapshot()
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# net.search() will search an roi in the image for the network (or the whole image if the roi is not
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# specified). At each location to look in the image if one of the classifier outputs is larger than
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# threshold the location and label will be stored in an object list and returned. At each scale the
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# detection window is moved around in the ROI using x_overlap (0-1) and y_overlap (0-1) as a guide.
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# If you set the overlap to 0.5 then each detection window will overlap the previous one by 50%. Note
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# the computational work load goes WAY up the more overlap. Finally, for mult-scale matching after
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# sliding the network around in the x/y dimensions the detection window will shrink by scale_mul (0-1)
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# down to min_scale (0-1). For example, if scale_mul is 0.5 the detection window will shrink by 50%.
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# Note that at a lower scale there's even more area to search if x_overlap and y_overlap are small...
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# contrast_threshold skips running the CNN in areas that are flat.
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for obj in net.search(img, threshold=0.6, min_scale=0.5, scale_mul=0.5, \
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x_overlap=0.5, y_overlap=0.5, contrast_threshold=0.5):
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print("Detected %s - Confidence %f%%" % (labels[obj.index()], obj.value()))
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img.draw_rectangle(obj.rect(), color=(255, 0, 0))
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print(clock.fps())
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@ -0,0 +1,51 @@
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# LeNet Search Just Center Example
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#
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# LeNet is a convolutional nueral network designed to classify it's field of view into digits 0-9.
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#
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# In this example we slide the LeNet detector window over the image and get a list of activations
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# where there might be an object. Note that use a CNN with a sliding window is extremely compute
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# expensive so for an exhaustive search do not expect the CNN to be real-time.
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import sensor, image, time, os, nn
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
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sensor.set_windowing((128, 128)) # Set 128x128 window.
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sensor.skip_frames(time=500) # Don't let autogain run every long.
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sensor.set_auto_gain(False) # Turn off autogain.
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sensor.set_auto_exposure(False) # Turn off whitebalance.
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# Load lenet network (You can get the network from OpenMV IDE).
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net = nn.load('/lenet.network')
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labels = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
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clock = time.clock()
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while(True):
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clock.tick()
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img = sensor.snapshot()
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tmp_img = img.copy().binary([(150, 255)], invert=True)
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# net.search() will search an roi in the image for the network (or the whole image if the roi is not
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# specified). At each location to look in the image if one of the classifier outputs is larger than
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# threshold the location and label will be stored in an object list and returned. At each scale the
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# detection window is moved around in the ROI using x_overlap (0-1) and y_overlap (0-1) as a guide.
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# If you set the overlap to 0.5 then each detection window will overlap the previous one by 50%. Note
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# the computational work load goes WAY up the more overlap. Finally, for mult-scale matching after
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# sliding the network around in the x/y dimensions the detection window will shrink by scale_mul (0-1)
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# down to min_scale (0-1). For example, if scale_mul is 0.5 the detection window will shrink by 50%.
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# Note that at a lower scale there's even more area to search if x_overlap and y_overlap are small...
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# contrast_threshold skips running the CNN in areas that are flat.
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# Setting x_overlap=-1 forces the window to stay centered in the ROI in the x direction always. If
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# y_overlap is not -1 the method will search in all vertical positions.
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# Setting y_overlap=-1 forces the window to stay centered in the ROI in the y direction always. If
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# x_overlap is not -1 the method will serach in all horizontal positions.
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for obj in net.search(tmp_img, threshold=0.8, min_scale=0.4, scale_mul=0.8, \
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x_overlap=-1, y_overlap=-1, contrast_threshold=0.5):
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print("Detected %s - Confidence %f%%" % (labels[obj.index()], obj.value()))
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img.draw_rectangle(obj.rect())
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print(clock.fps())
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@ -0,0 +1,45 @@
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# LeNet Search Whole Window Example
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#
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# LeNet is a convolutional nueral network designed to classify it's field of view into digits 0-9.
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#
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# In this example we slide the LeNet detector window over the image and get a list of activations
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# where there might be an object. Note that use a CNN with a sliding window is extremely compute
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# expensive so for an exhaustive search do not expect the CNN to be real-time.
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import sensor, image, time, os, nn
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sensor.reset() # Reset and initialize the sensor.
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sensor.set_pixformat(sensor.GRAYSCALE) # Set pixel format to RGB565 (or GRAYSCALE)
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sensor.set_framesize(sensor.QVGA) # Set frame size to QVGA (320x240)
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sensor.set_windowing((128, 128)) # Set 128x128 window.
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sensor.skip_frames(time=500) # Don't let autogain run every long.
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sensor.set_auto_gain(False) # Turn off autogain.
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sensor.set_auto_exposure(False) # Turn off whitebalance.
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# Load lenet network (You can get the network from OpenMV IDE).
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net = nn.load('/lenet.network')
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labels = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']
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clock = time.clock()
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while(True):
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clock.tick()
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img = sensor.snapshot()
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tmp_img = img.copy().binary([(150, 255)], invert=True)
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# net.search() will search an roi in the image for the network (or the whole image if the roi is not
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# specified). At each location to look in the image if one of the classifier outputs is larger than
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# threshold the location and label will be stored in an object list and returned. At each scale the
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# detection window is moved around in the ROI using x_overlap (0-1) and y_overlap (0-1) as a guide.
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# If you set the overlap to 0.5 then each detection window will overlap the previous one by 50%. Note
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# the computational work load goes WAY up the more overlap. Finally, for mult-scale matching after
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# sliding the network around in the x/y dimensions the detection window will shrink by scale_mul (0-1)
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# down to min_scale (0-1). For example, if scale_mul is 0.5 the detection window will shrink by 50%.
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# Note that at a lower scale there's even more area to search if x_overlap and y_overlap are small...
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# contrast_threshold skips running the CNN in areas that are flat.
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for obj in net.search(tmp_img, threshold=0.9, min_scale=0.5, scale_mul=0.5, \
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x_overlap=0.5, y_overlap=0.5, contrast_threshold=0.5):
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print("Detected %s - Confidence %f%%" % (labels[obj.index()], obj.value()))
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img.draw_rectangle(obj.rect())
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print(clock.fps())
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@ -58,8 +58,314 @@ STATIC mp_obj_t py_net_forward(uint n_args, const mp_obj_t *args, mp_map_t *kw_a
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_KW(py_net_forward_obj, 2, py_net_forward);
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// NN Class Object
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#define py_nn_class_obj_size 6
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typedef struct py_nn_class_obj {
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mp_obj_base_t base;
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mp_obj_t x, y, w, h, index, value;
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} py_nn_class_obj_t;
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static void py_nn_class_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind)
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{
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py_nn_class_obj_t *self = self_in;
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mp_printf(print,
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"{\"x\":%d, \"y\":%d, \"w\":%d, \"h\":%d, \"index\":%d, \"value\":%f}",
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mp_obj_get_int(self->x),
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mp_obj_get_int(self->y),
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mp_obj_get_int(self->w),
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mp_obj_get_int(self->h),
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mp_obj_get_int(self->index),
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(double) mp_obj_get_float(self->value));
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}
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static mp_obj_t py_nn_class_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value)
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{
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if (value == MP_OBJ_SENTINEL) { // load
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py_nn_class_obj_t *self = self_in;
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if (MP_OBJ_IS_TYPE(index, &mp_type_slice)) {
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mp_bound_slice_t slice;
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if (!mp_seq_get_fast_slice_indexes(py_nn_class_obj_size, index, &slice)) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "only slices with step=1 (aka None) are supported"));
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}
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mp_obj_tuple_t *result = mp_obj_new_tuple(slice.stop - slice.start, NULL);
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mp_seq_copy(result->items, &(self->x) + slice.start, result->len, mp_obj_t);
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return result;
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}
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switch (mp_get_index(self->base.type, py_nn_class_obj_size, index, false)) {
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case 0: return self->x;
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case 1: return self->y;
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case 2: return self->w;
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case 3: return self->h;
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case 4: return self->index;
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case 5: return self->value;
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}
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}
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return MP_OBJ_NULL; // op not supported
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}
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mp_obj_t py_nn_class_rect(mp_obj_t self_in)
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{
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return mp_obj_new_tuple(4, (mp_obj_t []) {((py_nn_class_obj_t *) self_in)->x,
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((py_nn_class_obj_t *) self_in)->y,
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((py_nn_class_obj_t *) self_in)->w,
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((py_nn_class_obj_t *) self_in)->h});
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}
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mp_obj_t py_nn_class_x(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->x; }
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mp_obj_t py_nn_class_y(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->y; }
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mp_obj_t py_nn_class_w(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->w; }
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mp_obj_t py_nn_class_h(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->h; }
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mp_obj_t py_nn_class_index(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->index; }
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mp_obj_t py_nn_class_value(mp_obj_t self_in) { return ((py_nn_class_obj_t *) self_in)->value; }
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_rect_obj, py_nn_class_rect);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_x_obj, py_nn_class_x);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_y_obj, py_nn_class_y);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_w_obj, py_nn_class_w);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_h_obj, py_nn_class_h);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_index_obj, py_nn_class_index);
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(py_nn_class_value_obj, py_nn_class_value);
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STATIC const mp_rom_map_elem_t py_nn_class_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_rect), MP_ROM_PTR(&py_nn_class_rect_obj) },
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{ MP_ROM_QSTR(MP_QSTR_x), MP_ROM_PTR(&py_nn_class_x_obj) },
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{ MP_ROM_QSTR(MP_QSTR_y), MP_ROM_PTR(&py_nn_class_y_obj) },
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{ MP_ROM_QSTR(MP_QSTR_w), MP_ROM_PTR(&py_nn_class_w_obj) },
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{ MP_ROM_QSTR(MP_QSTR_h), MP_ROM_PTR(&py_nn_class_h_obj) },
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{ MP_ROM_QSTR(MP_QSTR_index), MP_ROM_PTR(&py_nn_class_index_obj) },
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{ MP_ROM_QSTR(MP_QSTR_value), MP_ROM_PTR(&py_nn_class_value_obj) }
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};
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STATIC MP_DEFINE_CONST_DICT(py_nn_class_locals_dict, py_nn_class_locals_dict_table);
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static const mp_obj_type_t py_nn_class_type = {
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{ &mp_type_type },
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.name = MP_QSTR_nn_class,
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.print = py_nn_class_print,
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.subscr = py_nn_class_subscr,
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.locals_dict = (mp_obj_t) &py_nn_class_locals_dict
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};
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typedef struct py_nn_class_obj_list_lnk_data {
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rectangle_t rect;
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int index;
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float value;
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int merge_number;
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} py_nn_class_obj_list_lnk_data_t;
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STATIC mp_obj_t py_net_search(uint n_args, const mp_obj_t *args, mp_map_t *kw_args)
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{
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nn_t *arg_net = py_net_cobj(args[0]);
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image_t *arg_img = py_helper_arg_to_image_mutable(args[1]);
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rectangle_t roi;
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py_helper_keyword_rectangle_roi(arg_img, n_args, args, 2, kw_args, &roi);
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float arg_threshold = py_helper_keyword_float(n_args, args, 3, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_threshold), 0.6);
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PY_ASSERT_TRUE_MSG((0 <= arg_threshold) && (arg_threshold <= 1), "0 <= threshold <= 1");
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float arg_min_scale = py_helper_keyword_float(n_args, args, 4, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_min_scale), 1.0);
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PY_ASSERT_TRUE_MSG((0 < arg_min_scale) && (arg_min_scale <= 1), "0 < min_scale <= 1");
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float arg_scale_mul = py_helper_keyword_float(n_args, args, 5, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_scale_mul), 0.5);
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PY_ASSERT_TRUE_MSG((0 <= arg_scale_mul) && (arg_scale_mul < 1), "0 <= scale_mul < 1");
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float arg_x_overlap = py_helper_keyword_float(n_args, args, 6, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_x_overlap), 0);
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PY_ASSERT_TRUE_MSG(((0 <= arg_x_overlap) && (arg_x_overlap < 1)) || (arg_x_overlap == -1), "0 <= x_overlap < 1");
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float arg_y_overlap = py_helper_keyword_float(n_args, args, 7, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_y_overlap), 0);
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PY_ASSERT_TRUE_MSG(((0 <= arg_y_overlap) && (arg_y_overlap < 1)) || (arg_y_overlap == -1), "0 <= y_overlap < 1");
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float arg_contrast_threshold = py_helper_keyword_float(n_args, args, 8, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_contrast_threshold), 1);
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PY_ASSERT_TRUE_MSG(0 <= arg_contrast_threshold, "0 <= contrast_threshold");
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|
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bool softmax = py_helper_keyword_int(n_args, args, 9, kw_args, MP_OBJ_NEW_QSTR(MP_QSTR_softmax), false);
|
||||
|
||||
list_t out;
|
||||
list_init(&out, sizeof(py_nn_class_obj_list_lnk_data_t));
|
||||
|
||||
fb_alloc_mark();
|
||||
|
||||
for (float scale = 1; scale >= arg_min_scale; scale *= arg_scale_mul) {
|
||||
// Either provide a subtle offset to center multiple detection windows or center the only detection window.
|
||||
for (int y = roi.y + ((arg_y_overlap != -1) ? (fmodf(roi.h, (roi.h * scale)) / 2) : ((roi.h - (roi.h * scale)) / 2));
|
||||
// Finish when the detection window is outside of the ROI.
|
||||
(y + (roi.h * scale)) <= (roi.y + roi.h);
|
||||
// Step by an overlap amount accounting for scale or just terminate after one iteration.
|
||||
y += ((arg_y_overlap != -1) ? (roi.h * scale * (1 - arg_y_overlap)) : roi.h)) {
|
||||
// Either provide a subtle offset to center multiple detection windows or center the only detection window.
|
||||
for (int x = roi.x + ((arg_x_overlap != -1) ? (fmodf(roi.w, (roi.w * scale)) / 2) : ((roi.w - (roi.w * scale)) / 2));
|
||||
// Finish when the detection window is outside of the ROI.
|
||||
(x + (roi.w * scale)) <= (roi.x + roi.w);
|
||||
// Step by an overlap amount accounting for scale or just terminate after one iteration.
|
||||
x += ((arg_x_overlap != -1) ? (roi.w * scale * (1 - arg_x_overlap)) : roi.w)) {
|
||||
rectangle_t new_roi;
|
||||
rectangle_init(&new_roi, x, y, roi.w * scale, roi.h * scale);
|
||||
if (rectangle_overlap(&roi, &new_roi)) {
|
||||
|
||||
int sum = 0;
|
||||
int sum_2 = 0;
|
||||
for (int b = new_roi.y, bb = new_roi.y + new_roi.h; b < bb; b++) {
|
||||
for (int a = new_roi.x, aa = new_roi.x + new_roi.w; a < aa; a++) {
|
||||
switch(arg_img->bpp) {
|
||||
case IMAGE_BPP_BINARY: {
|
||||
int pixel = COLOR_BINARY_TO_GRAYSCALE(IMAGE_GET_BINARY_PIXEL(arg_img, a, b));
|
||||
sum += pixel;
|
||||
sum_2 += pixel * pixel;
|
||||
}
|
||||
case IMAGE_BPP_GRAYSCALE: {
|
||||
int pixel = IMAGE_GET_GRAYSCALE_PIXEL(arg_img, a, b);
|
||||
sum += pixel;
|
||||
sum_2 += pixel * pixel;
|
||||
}
|
||||
case IMAGE_BPP_RGB565: {
|
||||
int pixel = COLOR_RGB565_TO_GRAYSCALE(IMAGE_GET_RGB565_PIXEL(arg_img, a, b));
|
||||
sum += pixel;
|
||||
sum_2 += pixel * pixel;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int area = new_roi.w * new_roi.h;
|
||||
int mean = sum / area;
|
||||
int variance = (sum_2 / area) - (mean * mean);
|
||||
|
||||
if (fast_sqrtf(variance) >= arg_contrast_threshold) { // Skip flat regions...
|
||||
nn_run_network(arg_net, arg_img, &new_roi, softmax);
|
||||
|
||||
int max_index = -1;
|
||||
float max_value = -1;
|
||||
for (int i=0; i<arg_net->output_size; i++) {
|
||||
float value = ((float) (arg_net->output_data[i] + 128)) / 255;
|
||||
if ((value >= arg_threshold) && (value > max_value)) {
|
||||
max_index = i;
|
||||
max_value = value;
|
||||
}
|
||||
}
|
||||
|
||||
if (max_index != -1) {
|
||||
py_nn_class_obj_list_lnk_data_t lnk_data;
|
||||
lnk_data.rect.x = new_roi.x;
|
||||
lnk_data.rect.y = new_roi.y;
|
||||
lnk_data.rect.w = new_roi.w;
|
||||
lnk_data.rect.h = new_roi.h;
|
||||
lnk_data.index = max_index;
|
||||
lnk_data.value = max_value;
|
||||
lnk_data.merge_number = 1;
|
||||
list_push_back(&out, &lnk_data);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fb_alloc_free_till_mark();
|
||||
|
||||
// Merge all overlapping and same detections and average them.
|
||||
|
||||
for (;;) {
|
||||
bool merge_occured = false;
|
||||
|
||||
list_t out_temp;
|
||||
list_init(&out_temp, sizeof(py_nn_class_obj_list_lnk_data_t));
|
||||
|
||||
while (list_size(&out)) {
|
||||
py_nn_class_obj_list_lnk_data_t lnk_data;
|
||||
list_pop_front(&out, &lnk_data);
|
||||
|
||||
for (size_t k = 0, l = list_size(&out); k < l; k++) {
|
||||
py_nn_class_obj_list_lnk_data_t tmp_data;
|
||||
list_pop_front(&out, &tmp_data);
|
||||
|
||||
if ((lnk_data.index == tmp_data.index)
|
||||
&& rectangle_overlap(&(lnk_data.rect), &(tmp_data.rect))) {
|
||||
lnk_data.rect.x = ((lnk_data.rect.x * lnk_data.merge_number) + tmp_data.rect.x) / (lnk_data.merge_number + 1);
|
||||
lnk_data.rect.y = ((lnk_data.rect.y * lnk_data.merge_number) + tmp_data.rect.y) / (lnk_data.merge_number + 1);
|
||||
lnk_data.rect.w = ((lnk_data.rect.w * lnk_data.merge_number) + tmp_data.rect.w) / (lnk_data.merge_number + 1);
|
||||
lnk_data.rect.h = ((lnk_data.rect.h * lnk_data.merge_number) + tmp_data.rect.h) / (lnk_data.merge_number + 1);
|
||||
lnk_data.value = ((lnk_data.value * lnk_data.merge_number) + tmp_data.value) / (lnk_data.merge_number + 1);
|
||||
lnk_data.merge_number += 1;
|
||||
merge_occured = true;
|
||||
} else {
|
||||
list_push_back(&out, &tmp_data);
|
||||
}
|
||||
}
|
||||
|
||||
list_push_back(&out_temp, &lnk_data);
|
||||
}
|
||||
|
||||
list_copy(&out, &out_temp);
|
||||
|
||||
if (!merge_occured) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Determine the winner between overlapping different class detections.
|
||||
|
||||
for (;;) {
|
||||
bool merge_occured = false;
|
||||
|
||||
list_t out_temp;
|
||||
list_init(&out_temp, sizeof(py_nn_class_obj_list_lnk_data_t));
|
||||
|
||||
while (list_size(&out)) {
|
||||
py_nn_class_obj_list_lnk_data_t lnk_data;
|
||||
list_pop_front(&out, &lnk_data);
|
||||
|
||||
for (size_t k = 0, l = list_size(&out); k < l; k++) {
|
||||
py_nn_class_obj_list_lnk_data_t tmp_data;
|
||||
list_pop_front(&out, &tmp_data);
|
||||
|
||||
if ((lnk_data.index != tmp_data.index)
|
||||
&& rectangle_overlap(&(lnk_data.rect), &(tmp_data.rect))) {
|
||||
if (tmp_data.value > lnk_data.value) {
|
||||
memcpy(&lnk_data, &tmp_data, sizeof(py_nn_class_obj_list_lnk_data_t));
|
||||
}
|
||||
|
||||
merge_occured = true;
|
||||
} else {
|
||||
list_push_back(&out, &tmp_data);
|
||||
}
|
||||
}
|
||||
|
||||
list_push_back(&out_temp, &lnk_data);
|
||||
}
|
||||
|
||||
list_copy(&out, &out_temp);
|
||||
|
||||
if (!merge_occured) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
mp_obj_list_t *objects_list = mp_obj_new_list(list_size(&out), NULL);
|
||||
|
||||
for (size_t i = 0; list_size(&out); i++) {
|
||||
py_nn_class_obj_list_lnk_data_t lnk_data;
|
||||
list_pop_front(&out, &lnk_data);
|
||||
|
||||
py_nn_class_obj_t *o = m_new_obj(py_nn_class_obj_t);
|
||||
o->base.type = &py_nn_class_type;
|
||||
o->x = mp_obj_new_int(lnk_data.rect.x);
|
||||
o->y = mp_obj_new_int(lnk_data.rect.y);
|
||||
o->w = mp_obj_new_int(lnk_data.rect.w);
|
||||
o->h = mp_obj_new_int(lnk_data.rect.h);
|
||||
o->index = mp_obj_new_int(lnk_data.index);
|
||||
o->value = mp_obj_new_float(lnk_data.value);
|
||||
|
||||
objects_list->items[i] = o;
|
||||
}
|
||||
|
||||
return objects_list;
|
||||
}
|
||||
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(py_net_search_obj, 2, py_net_search);
|
||||
|
||||
STATIC const mp_rom_map_elem_t locals_dict_table[] = {
|
||||
{ MP_ROM_QSTR(MP_QSTR_forward), MP_ROM_PTR(&py_net_forward_obj) }
|
||||
{ MP_ROM_QSTR(MP_QSTR_forward), MP_ROM_PTR(&py_net_forward_obj) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_search), MP_ROM_PTR(&py_net_search_obj) }
|
||||
};
|
||||
|
||||
STATIC MP_DEFINE_CONST_DICT(locals_dict, locals_dict_table);
|
||||
|
||||
@ -138,10 +138,31 @@ Q(load)
|
||||
|
||||
// Net
|
||||
Q(Net)
|
||||
|
||||
// Forward
|
||||
Q(forward)
|
||||
Q(dry_run)
|
||||
Q(softmax)
|
||||
|
||||
// Search
|
||||
// duplicate Q(search)
|
||||
// duplicate Q(roi)
|
||||
// duplicate Q(threshold)
|
||||
Q(min_scale)
|
||||
Q(scale_mul)
|
||||
Q(x_overlap)
|
||||
Q(y_overlap)
|
||||
Q(contrast_threshold)
|
||||
// duplicate Q(softmax)
|
||||
// NN Class
|
||||
Q(nn_class)
|
||||
// duplicate Q(x)
|
||||
// duplicate Q(y)
|
||||
// duplicate Q(w)
|
||||
// duplicate Q(h)
|
||||
// duplicate Q(index)
|
||||
// duplicate Q(value)
|
||||
|
||||
// C/SIF Resolutions
|
||||
Q(QQCIF)
|
||||
Q(QCIF)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user