Computer Vision, IEEE International Conference on (1998)
Jan. 4, 1998 to Jan. 7, 1998
Cornelia Fermüller , University of Maryland at College Park
Yiannis Aloimonos , University of Maryland at College Park
In a practical situation, the rigid transformation relating different views is recovered with errors. In such a case, the recovered depth of the scene contains errors, and consequently a distorted version of visual space is computed. What then are meaningful shape representations that can be computed from the images? The result presented in this paper states that if the rigid transformation between different views is estimated in a way that gives rise to a minimum number of negative depth values, then at the center of the image affine shape can be correctly computed. This result is obtained by exploiting properties of the distortion function, developed in . The distortion model turns out to be a very powerful tool in the analysis and design of 3D motion and shape estimation algorithms, and as a byproduct of our analysis we present a computational explanation of psychophysical results demonstrating human visual space distortion from motion information.
Y. Aloimonos and C. Fermüller, "Which Shape from Motion?," Computer Vision, IEEE International Conference on(ICCV), Bombay, India, 1998, pp. 689.