Figure 9.

These are the images created by cropping the images in Figure 6 to include just the area surrounding table2B. The yellow rectangles labeled “Bird” in each of the images show the bounding boxes where birds were detected using the object detector algorithm. The top image used the LBP feature detector, and the bottom image used the Haar feature detector. Cropping these images reduced the total number of false positives in the frame by removing the text and clouds from the top of the image that were detected as birds in the full image. Both of these images appear to show positive detections of the bird, but the IoU in each case is <0.5