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Added fix for removing too similar images into the stitching module

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This commit is contained in:
Alexey Spizhevoy
2011-09-30 12:46:11 +00:00
parent 3d3efe7c07
commit c5357cc17c
2 changed files with 11 additions and 10 deletions
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14
modules/stitching/src/matchers.cpp
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@@ -427,12 +427,6 @@ void BestOf2NearestMatcher::match(const ImageFeatures &features1, const ImageFea
{
(*impl_)(features1, features2, matches_info);
//Mat out;
//drawMatches(features1.img, features1.keypoints, features2.img, features2.keypoints, matches_info.matches, out);
//stringstream ss;
//ss << features1.img_idx << features2.img_idx << ".png";
//imwrite(ss.str(), out);
// Check if it makes sense to find homography
if (matches_info.matches.size() < static_cast<size_t>(num_matches_thresh1_))
return;
@@ -466,7 +460,13 @@ void BestOf2NearestMatcher::match(const ImageFeatures &features1, const ImageFea
if (matches_info.inliers_mask[i])
matches_info.num_inliers++;
matches_info.confidence = matches_info.num_inliers / (8 + 0.3*matches_info.matches.size());
// These coeffs are from paper M. Brown and D. Lowe. "Automatic Panoramic Image Stitching
// using Invariant Features"
matches_info.confidence = matches_info.num_inliers / (8 + 0.3 * matches_info.matches.size());
// Set zero confidence to remove matches between too close images, as they don't provide
// additional information anyway. The threshold was set experimentally.
matches_info.confidence = matches_info.confidence > 3. ? 0. : matches_info.confidence;
// Check if we should try to refine motion
if (matches_info.num_inliers < num_matches_thresh2_)