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meaning of syntax : ”encoded_box[:, -1][assign_mask] = iou[assign_mask]” #142

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AllanZuo opened this issue Jul 19, 2018 · 0 comments

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@AllanZuo
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I don't anderstand the following codes:
what is in encoded_box after execute this code?
encoded_box[:, -1][assign_mask] = iou[assign_mask]

And what is the output of ”encoded_box[:, :2][assign_mask] ”?

encode_box is a tensor ande shape likes [[xmin,ymin,xmax,ymax],...].assign_mask is a tensor of [true,false,.....].
i just can't anderstand the syntax.who can help to explain it?

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