Calculate the IoU filter during detecting.
Question description
Input = [[x, y, width, length, label, conf], …]
This problem asks you to filter detection boxes using IoU (Intersection over Union). Given boxes in the form [x, y, width, length, label, conf], the key is to compute each rectangle’s overlap and union correctly, then apply the required filtering rule to remove redundant detections or keep the best ones. A careful implementation of box geometry and IoU calculation is the main challenge.
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