FASTAPPROXIMATENEARESTNEIGHBORSWITHAUTOMATICALGORITHMCONFIGURATION
Formanycomputervisionproblems,themosttimeconsumingcomponentconsistsofnearestneighbormatchinginhigh-dimensionalspaces.Therearenoknownexactalgorithmsforsolvingthesehigh-dimensionalproblemsthatarefasterthanlinearsearch.Approximatealgorithmsareknowntoprovidelargespeedupswithonlyminorlossin
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好文章，很有用~
opencv里看到的这个算法，值得学习
终于找到这篇轮文了。
论文是需要认真的反复的阅读的