vl_ubcmatch中参数的顺序是什么? [英] What's the order of parameters in vl_ubcmatch?

问题描述

我正在使用SIFT的VLFEAT实现来计算两组图像上的SIFT描述符:查询图像和数据库图像.给定一组查询，我想从大型描述符数据库中获取最接近的描述符，为此我使用vl_ubcmatch.

I am using VLFEAT implementation of SIFT to compute SIFT descriptors on two set of images: queries and database images. Given a set of queries, I'd like to obtain the closest descriptors from a big database of descriptors, for which I use vl_ubcmatch.

使用vl_ubcmatch语法作为MATCHES = vl_ubcmatch(DESCR1, DESCR2)，如果我先输入查询描述符，然后将数据库描述符作为第二个参数输入，则获得不同的结果.

Having vl_ubcmatch syntax as MATCHES = vl_ubcmatch(DESCR1, DESCR2) I obtain different results if I input the query descriptors first and the database descriptors as a second parameter or the other way around.

哪种语法正确?

1)MATCHES = vl_ubcmatch(QUERY_DESCR,DATABASE_DESCR)

或

2)MATCHES = vl_ubcmatch(DATABASE_DESCR,QUERY_DESCR)

推荐答案

MATCHES = vl_ubcmatch(DESCR1, DESCR2)在DESCR2中搜索最接近的描述符，如果匹配通过测试，则将其添加到输出中(对于更多详细信息，请参见deltheil的答案). 因此，我相信MATCHES = vl_ubcmatch(QUERY_DESCR,DATABASE_DESCR)是您想要的变体.

MATCHES = vl_ubcmatch(DESCR1, DESCR2) for each descriptor in DESCR1 searches for the closest descriptor in DESCR2 and adds it to the output if the match passes the test (for more details see deltheil's answer). So I believe MATCHES = vl_ubcmatch(QUERY_DESCR,DATABASE_DESCR) is the variant you want.

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