Showing papers on "Correspondence problem published in 1981"
1 Jan 1981
TL;DR: A succession of correspondence processes are discussed, based on the factors which contribute to the complexity of the correspondence problem, for establishing the correspondence between sets of points in successive frames.
Abstract: One of the fundamental problems in dynamic scene analysis is the tracking of objects from frame to frame. A general approach to tracking is to establish correspondences between points, or sets of points, between frames and then group the sets into objects based upon similarity of motion. This paper will focus on processes for establishing the correspondence between sets of points in successive frames. A succession of correspondence processes are discussed, based on the factors which contribute to the complexity of the correspondence problem.
194 citations
TL;DR: A promising spectrum of low-level approaches to visual motion faces serious obstacles: deficiencies in accuracy and efficiency, limited understanding of interpretation processes, and the correspondence problem.
Abstract: A promising spectrum of low-level approaches to visual motion faces serious obstacles: deficiencies in accuracy and efficiency, limited understanding of interpretation processes, and the correspondence problem.
101 citations
21 citations
26 Jan 1981
TL;DR: A system approach is outlined for the derivation of 3D polyhedral descriptions of moving objects by evaluation of monocular TV-frame sequences from real-world scenes and the relaxation approach of Barnard and Thompson 79+80 is modified in order to obtain acceptable results.
Abstract: A system approach is outlined for the derivation of 3D polyhedral descriptions of moving objects by evaluation of monocular TV-frame sequences from real-world scenes. An implementation of this approach facilitated the study of the correspondence problem between descriptors extracted from images of moving cars in consecutive TV-frames. Our experience forced us to modify the relaxation approach of Barnard and Thompson 79+80 [1] in order to obtain acceptable results. These modifications are described and discussed.
18 citations
TL;DR: In this article, a three-dimensional (3D) range-finding technique using a laser spot scanner and two linear solid-state image sensors is proposed, which uses both the solid state nature of image sensors and the avoidance of correspondence problem make it possible to obtain the range data of 3-D objects with high accuracy.
Abstract: A three-dimensional (3-D) range-finding technique, using a laser spot scanner and two linear solid-state image sensors is proposed. Both the solid-state nature of image sensors and the avoidance of correspondence problem make it possible to obtain the range data of 3-D objects with high accuracy.
13 citations
TL;DR: The recursive unsolVability of a problem concerning products of upper triangular 3 × 3 matrices is shown to be an immediate consequence of the unsolvability of the Post Correspondence problem.
Abstract: The recursive unsolvability of a problem concerning products of upper triangular 3 × 3 matrices is shown to be an immediate consequence of the unsolvability of the Post Correspondence problem.
9 citations
13 Jul 1981
8 citations