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SNR = 1/64. Histogram of the angles (x-axis, in degrees) between the viewing directions of each image (out of 40,000) and its 40 neighboring images. (a) Neighbors are postidentified usingK = 80 eigenvectors of . (b) Neighbors are postidentified using 80 eigenvectors of . (c) Neighbors are identified using the original rotationally invariant distances.
