Optical Flow Results

Optical flow comparison. An RGB image sequence (top left) is captured by a camera translating left relative to a specular apple under yellow and blue illumination. Derived conventional grayscale, yellow-invariant (left middle), and two-color invariant (left bottom) sequences are computed and used as input to Black and Anandan's robust optical flow algorithm. Right: flows obtained in the three cases. Green and blue flows are from grayscale and yellow-invariant sequences, respectively, and both are corrupted by specular reflections. Red flow is computed from the two-color invariant and is much closer to ground truth, which is horizontal and to the right.