Object 3D world coordinates from multiple images
조회 수: 7 (최근 30일)
이전 댓글 표시
I Want to find Object 3D world coordinates (called Photogrammetry) using coded targets
Using single camera, multiple images
Known
- Object 2D image coordinates (x,y) == coded targets
- Camera intrinsics, extrinsics parameters (using Calibration Checkerboard)
- Camera world pose from each images ( Image 1 : R,t / Image 2 : R,t ••• ) - Extracted R,tvec by camera calibration method
Unknown : Object 3D coordinates (x,y,z) From real scale
i already use worldPoints = triangulate(matchedPoints1,matchedPoints2,camProjection1,camProjection2)
this func and get worldpoints from two images (Using a known distance of length like Ruler)
and the precision was not bad either.
Multiple images, I know TriangulateMultiview and bundleAdjustment
But this func impossible to calculate 3D-coordinates considering the real 'Scale'
- How do I get 3D - coordinates that are scaled from multiple images?
- Sfm 3d reconstruction can solve this questions?
댓글 수: 0
답변 (1개)
Qu Cao
2022년 10월 25일
You will need a stereo camera to give you the actual dimension of 3-D objects.
Alternatively,if you know the size of an object in the triangulated 3-D points, you can estimate the scale. See this section of the Structure From Motion From Two Views example.
참고 항목
카테고리
Help Center 및 File Exchange에서 MATLAB Support Package for USB Webcams에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!