SURF for image retrieval

2013 11 29
1 个回答
回答已采纳
更新时间：2013 11 29
3 次查看（30 天）

0 个投票

Dear Team,
I've few doubts in implementation of SURF? In most of the web tutorials i've read SURF seem to be focussed on a simple comparison between two images. Instead of determining how similar two images are, would it be practical to use SURF to find the N closest matching images out of a collection of thousands of images?
For example, would it be practical to use SURF to generate keypoints for a batch of images, store the keypoints in a database, and then find the ones that have the shortest Euclidean distance to the keypoints generated for a "query" image?
Looking forward for your valuable suggestions and guidance on how to proceed if this could be done?
Malini

请先登录，再回答此问题。

 采纳的回答

Image Analyst
Image Analyst 2013-11-29

1 个投票

You can use SIFT and SURF for "scene matching" and Content Based Image Retrieval. I've seen some impressive results. Though with SIFT, since it's patented, that can be a problem. Many people, including the Mathworks in their Computer Vision System Toolbox, use SURF which is about as good as SIFT and much faster. With CBIR, there are a lot of different features and algorithms that can be used to suggest similar images. It's too involved to get into here, plus it's a rapidly evolving field of study. You can get MATLAB SIFT code at http://www.robots.ox.ac.uk/~vedaldi/code/sift.html, or http://www.vlfeat.org/

4 个评论
显示 2更早的评论 隐藏 2更早的评论

Malini
Malini 2013-11-29
Thank you for your quick response. Kindly request you to please let me know how to add the vlfeat to matlab toolbox.I'm using MATLAB R2013a.
I tried copy pasting vlfeat folder to 'C:\Program Files\MATLAB\R2013a\toolbox' and run the below command in editor window.
% SETUP Add the required search paths to MATLAB if exist('vl_version') ~= 3, run('vlfeat/toolbox/vl_setup') ; end
but, it is showing below error:(
Error using run (line 40) vlfeat\toolbox\vl_setup not found.
FYIP , the vlfeat folder which i tried copying 'C:\Program Files\MATLAB\R2013a\toolbox' contains vl_setup file in it.
Please let me know if i'm wrong in the process of running vlfeat in MATLAB.
Thank you.
Malini
Walter Roberson
Walter Roberson 2013-11-29
It looks like you might be using Student Version of MATLAB. If so, then for the Computer Version toolbox see http://www.mathworks.com/academia/student_version/companion.html
Malini
Malini 2013-11-29
编辑：Malini 2013-11-29
Thank you. But I'm using MATLAB full-version. Could u please let me know how to run vlfeat in full version of MATLAB R2013a.
Malini
Malini 2013-11-29
Thank you. I've successfully installed vlfeat in MATLAB R2013a. Reason for the error was that the setup file was in .m extension in the downloaded zipped file and when i removed the .m extension and ran, it went through successfully.
Thank you Image Analyst and Walter for sparing your valuable time to answer my question.
Cheers,
Malini

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Computer Vision with Simulink 的更多信息

产品

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by