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lzx551402 / geodesc

Implementation of ECCV'18 paper - GeoDesc: Learning Local Descriptors by Integrating Geometry Constraints
MIT License
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Patch size #9

Open zzxp opened 4 years ago

zzxp commented 4 years ago

Hi! Sorry for disturbing you. I am a bit confused about the patch size setting in your paper.In L2-Net and HardNet,patch size is 32X32,but your patches seem to be 12σ × 12σ. I have seen LIFT. But I still do not fully understand the relationship between patch size in pixel and σ.Could you give me some suggestions？

zzxp commented 4 years ago

What is the patch pixel size setting in your project？

lzx551402 commented 4 years ago

Sorry for the late response. Basically, σ denotes the feature scale, which can be obtained from a keypoint detector that constructs image pyramid, such as SIFT. The size of a patch is always 32x32, but the sampling size is 12σ × 12σ. Perhaps the code will better explain its effect.

lzx551402 commented 4 years ago

I also write an example to address this issue. Please refer to this discussion.