Ask Your Question

how works bruteforcematcher?

asked 2013-07-25 05:25:48 -0600

McBodik gravatar image

Hi. I can't find any information how bf and other matchers works. Can you help?

edit retag flag offensive close merge delete

2 answers

Sort by ยป oldest newest most voted

answered 2013-07-25 06:42:30 -0600

Nyenna gravatar image

updated 2013-07-25 10:43:12 -0600

You can compute the distance between two descriptors according to different metrics (e.g. L2 distance for floating-point descriptors). The smaller the distance, the more similar the matching.

Assuming that you use the bruteforce matcher to match the descriptors from one image (called the "query" image to another image (the "train" image), here is what it does:

For each descriptor of the query image, compute the distance to each descriptor of the train image and keep the smallest one.

edit flag offensive delete link more

answered 2013-07-25 05:42:18 -0600

Notas gravatar image

See this. It's to find the matches from keypoint descriptions by brute-force comparing the descriptions in the first set to the ones in the second set.

edit flag offensive delete link more


I saw that. I want to know how it work, no what its do. e.g "this matcher finds the closest descriptor in the second set by trying each one" how it finds closest?

McBodik gravatar imageMcBodik ( 2013-07-25 05:54:11 -0600 )edit

Question Tools

1 follower


Asked: 2013-07-25 05:25:48 -0600

Seen: 407 times

Last updated: Jul 25 '13