Journal on Communications ›› 2019, Vol. 40 ›› Issue (1): 15-23.doi: 10.11959/j.issn.1000-436x.2019021

• Papers • Previous Articles     Next Articles

Retina-imitation sampling based binary descriptor

Qingsheng YUAN1,Guoqing JIN1,Dongming ZHANG1,Xiuguo BAO1   

  1. 1 National Computer Network Emergency Response Technical Team/Coordination Center of China,Beijing 100029,China
    2 Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,China
    3 School of Cyber Security,University of Chinese Academy of Sciences,Beijing 100049,China
    4 Institute of Information Engineering,Chinese Academy of Sciences,Beijing 100193,China
  • Revised:2018-12-01 Online:2019-01-01 Published:2019-02-03
  • Supported by:
    The National Natural Science Foundation of China(61672495);The National Natural Science Foundation of China(61273247);The National Key Research and Development Program of China(2016YFB0801203);The National Key Research and Development Program of China(2016YFB0801200)

Abstract:

The existing binary descriptors,generated from random or uniform point pairs sampling,suffer from low robustness and high computation.A novel sampling method,named RBS (retina-imitation based sampling),was proposed, which combines different densities sampling,multi-scale smoothing and reception field overlapping to imitate the converting from light signal to vision of ganglion cells of human retina cells,and further selects most discriminative comparison pairs based on learning on training data.Finally,compact binary descriptor was generated based on comparisons between the neighbor mean instead of singe sampled point.The experimental results show the RBS-128 with 128 bit outperforms FREAK and BRSIK with 512 bit about 16.4% and 5.3% in precision on the dataset provided by Mikolajczyk.

Key words: binary descriptor, retina-imitation based sampling, ganglion cell, comparison pairs

CLC Number: 

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