Epipolar constraint for correspondence search
WHAT IT TESTS: two-view geometry basics. OUTLINE: the match for p1 must lie on its epipolar line in the second image, reducing a 2D search to 1D; the relation is encoded by the fundamental matrix.
WHAT IT TESTS: whether you know the epipolar constraint. ANSWER OUTLINE: a point in one image, together with the two camera centers, defines an epipolar plane that intersects the second image in a line. The true correspondence of p1 must lie on this epipolar line, so the search collapses from the whole 2D image to one line. The fundamental matrix maps p1 to its epipolar line. This is epipolar geometry. RED FLAG: claiming you must scan the entire second image.
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- #epipolar-geometry
- #stereo-vision
- #correspondence
- #fundamental-matrix
- #two-view-geometry
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