object detection, image matching for small objects

4 次查看（过去 30 天）
Leung
Leung 2014-11-28
回答： Image Analyst 2014-11-28
I am using SIFT feature the matching between two images or it can be considered as object detection.
First matching. I used SIFT feature for matching and it failed when the object is small.
Second matching. However, it woks when I cropped that object out from that image.
Any suggestions or ideas to improve the first matching without cropping?
Example images are shown below.
Image A:
Image B:
Image C cropped out from image B:

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2014-11-28
This is exactly what this group at the University of Arizona did using Hu's moments: http://www.youtube.com/watch?v=Nc06tlZAv_Q Maybe you might want to try that method. The advantage is that it's robust to scale and rotation changes (within reason).

类别

在 Help Center 和 File Exchange 中查找有关 Feature Detection and Extraction 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by