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c++opencvsiftsurffeature-extraction

Sift Extraction - opencv

I'm trying to get started working with sift feature extraction using (C++) OpenCv. I need to extract features using SIFT, match them between the original image (e.g. a book) and a scene, and after that calculate the camera pose.

So far I have found this algorithm using SURF. Does anyone know a base code from which I can get started, or maybe a way to convert the algorithm in the link from SURF to SIFT?

Thanks in advance.

EDIT: Ok, I worked out a solution for the sift problem. Now I'm trying to figure the camera pose. I'm trying to use: solvePnP, can anyone help me with an example?

Solution

  • Check out the feature2d tutorial section of the new OpenCV docs website. There tutorials with code showing:

    1. Feature detection with e.g. SURF
    2. Feature Description
    3. Feature Matching