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mihaidusmanu / d2-net

D2-Net: A Trainable CNN for Joint Description and Detection of Local Features
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HardDetectionModule and HandcraftedLocalizationModule #65

Closed fantuslk closed 4 years ago

fantuslk commented 4 years ago

Hi @mihaidusmanu ,when I run the test set,I can't understand what these two functions do.Please help me.Thank you.

mihaidusmanu commented 4 years ago

Hello. At test time, we use hard non-max-suppression (HardDetectionModule) which is not differentiable - see section 3.2 paragraph Hard Feature Detection for more details. We also use order two curve fitting nearby local maxima (HandcraftedLocalizationModule) to improve the positions of keypoints similar to SIFT (see Section 4.3 paragraph Test in the paper for a reference).