https://zzefone.github.io/myblog/tags/opencv/Recent content in OpenCV on WANG Zhaofeng · Course PortfolioHugoenMon, 19 Oct 2026 00:00:00 +0000https://zzefone.github.io/myblog/posts/bcv-marker-based-ar/Sat, 17 Oct 2026 00:00:00 +0000https://zzefone.github.io/myblog/posts/bcv-marker-based-ar/<p>A reference image, a camera frame and a replacement image. The BCV final project is to find the first image in the frame and put the replacement in the same position. I tested the code on generated scenes, then on the marker displayed on a phone in front of the integrated webcam.</p> <h2 id="the-matching-pipeline"> The matching pipeline <a class="heading-link" href="#the-matching-pipeline"> <i class="fa-solid fa-link" aria-hidden="true" title="Link to heading"></i> <span class="sr-only">Link to heading</span> </a> </h2> <p>SIFT is the default, with ORB available in the GUI. Both use brute-force kNN matching with two neighbours. A ratio test removes ambiguous matches, and RANSAC estimates the homography from the remaining pairs.</p>