ml-recall

#limitations

1 question from Object Detection

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mediumAI-checkedObject Detection

In YOLO (v1), each cell of a $7 \times 7$ grid predicts two boxes and only one set of class probabilities. Which kind of scene does the YOLO paper name as a weakness of this design?

Many small objects close together, such as a flock of birds1
A single large object that fills most of the image2
A cluttered background around a few objects3
Input images whose size differs from the network's input size4

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