BibSonomy :: publication ::

tag user group author concept BibTeX key search:all search:barabas

The blue social bookmark and publication sharing system.

entry of barabas:

(0)

This publication has not been reviewed yet.

rating distribution

average user rating

The average rating is computed over all reviews. However, some of them may be invisible to you due to the visibility setting chosen by the reviewers.

(0.0 of 5.0 based on 0 reviews)

The interpretation of structure from motion.

by: Ullman

In: Proc R Soc Lond B Biol Sci, Vol. 203, Nr. 1153 (1979 Jan 15) , p. 405--426.

Abstract

The interpretation of structure from motion is examined from a computional point of view. The question addressed is how the three dimensional structure and motion of objects can be inferred from the two dimensional transformations of their projected images when no three dimensional information is conveyed by the individual projections. The following scheme is proposed: i divide the image into groups of four elements each; ii test each group for a rigid interpretation; iii combine the results obtained in ii. It is shown that this scheme will correctly decompose scenes containing arbitrary rigid objects in motion, recovering their three dimensional structure and motion. The analysis is based primarily on the "structure from motion" theorem which states that the structure of four non-coplanar points is recoverable from three orthographic projections. The interpretation scheme is extended to cover perspective projections, and its psychological relevance is discussed.

Description

References for general exam

BibTeX record

@article{Ullman:1979ff,
  abstract = {The interpretation of structure from motion is examined from a computional point of view. The question addressed is how the three dimensional structure and motion of objects can be inferred from the two dimensional transformations of their projected images when no three dimensional information is conveyed by the individual projections. The following scheme is proposed: (i) divide the image into groups of four elements each; (ii) test each group for a rigid interpretation; (iii) combine the results obtained in (ii). It is shown that this scheme will correctly decompose scenes containing arbitrary rigid objects in motion, recovering their three dimensional structure and motion. The analysis is based primarily on the "structure from motion" theorem which states that the structure of four non-coplanar points is recoverable from three orthographic projections. The interpretation scheme is extended to cover perspective projections, and its psychological relevance is discussed.},
  added-at = {2010-03-01T21:54:28.000+0100},
  au = {Ullman, S},
  author = {Ullman},
  biburl = {http://www.bibsonomy.org/bibtex/2509919de8504070f4d0ba4bb25d7d42f/barabas},
  da = {19790524},
  date-added = {2008-10-14 02:23:10 -0400},
  date-modified = {2008-10-14 02:23:10 -0400},
  dcom = {19790524},
  description = {References for general exam},
  edat = {1979/01/15},
  interhash = {e61a18e0dfdc29ce3e848f794737e4dc},
  intrahash = {509919de8504070f4d0ba4bb25d7d42f},
  issn = {0080-4649 (Print)},
  jid = {7505889},
  journal = {Proc R Soc Lond B Biol Sci},
  jt = {Proceedings of the Royal Society of London. Series B, Containing papers of a Biological character. Royal Society (Great Britain)},
  keywords = {imported},
  language = {eng},
  lr = {20070430},
  mh = {Computers; Depth Perception/physiology; Form Perception/*physiology; Humans; *Models, Biological; Motion Perception/*physiology},
  mhda = {1979/01/15 00:01},
  number = 1153,
  own = {NLM},
  pages = {405--426},
  pl = {ENGLAND},
  pmid = {34162},
  pst = {ppublish},
  pt = {Journal Article},
  pubm = {Print},
  sb = {IM; S},
  so = {Proc R Soc Lond B Biol Sci. 1979 Jan 15;203(1153):405-26.},
  stat = {MEDLINE},
  timestamp = {2010-03-01T21:54:28.000+0100},
  title = {The interpretation of structure from motion.},
  volume = 203,
  year = {1979 Jan 15}
}

Endnote record

%0 Journal Article
%1 Ullman:1979ff
%A Ullman, 
%D 1979 Jan 15
%J Proc R Soc Lond B Biol Sci
%K 
%N 1153
%P 405--426
%T The interpretation of structure from motion.
%V 203
%X The interpretation of structure from motion is examined from a computional point of view. The question addressed is how the three dimensional structure and motion of objects can be inferred from the two dimensional transformations of their projected images when no three dimensional information is conveyed by the individual projections. The following scheme is proposed: (i) divide the image into groups of four elements each; (ii) test each group for a rigid interpretation; (iii) combine the results obtained in (ii). It is shown that this scheme will correctly decompose scenes containing arbitrary rigid objects in motion, recovering their three dimensional structure and motion. The analysis is based primarily on the "structure from motion" theorem which states that the structure of four non-coplanar points is recoverable from three orthographic projections. The interpretation scheme is extended to cover perspective projections, and its psychological relevance is discussed.