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Floating point descriptor - Error when training #48

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gse95 opened this issue Apr 5, 2022 · 1 comment
Open

Floating point descriptor - Error when training #48

gse95 opened this issue Apr 5, 2022 · 1 comment

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@gse95
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gse95 commented Apr 5, 2022

Hi, I was noticing that when using a normalized float descriptor like Superpoint, there were some issues when training. The weights were different based on how the descriptor was scaled. Upon debugging, I noticed that when we do the tranform when computing the nodeWeights, we copy a floating point value (the distance of the descriptor from the node) into a uint64 variable. This forces the value to be 0 or 1 for a float descriptor and was reducing the resolution. Is there a reason why this was done ? Thanks!

@AiYoWeiYL
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Hello, I also encountered the same problem, please tell me whether you have solved it.My program breaks at distance(cv:: Mat&a, cv :: Mat&a) of descmanip. cpp. I output a.rows in this function for debugging and found that a.rows has a negative value

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