Head pose computation for very low bit-rate video coding

Ricardo Lopez, Thomas S. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper we examine the problem of determining 3D human head pose from a sequence of 2D grey scale images. Computation of head pose is vital in many areas of human head modeling and applications include model-based video compression, face recognition, 3D head tracking, and Human Computer Intelligent Interaction (HCII). A significant amount of research has been done in the general area of 3D object alignment for recognition and modeling purposes with much of the work concentrating on applying techniques to simple polyhedral objects such as cubes or polyhedrons. We take these techniques a step further and apply them to grey scale images of human heads using a set of distinguishing facial features. Using at least 3 of these features visible in each 2D image, we compute the pose relative to a given 3D model. We optimize the selection of feature points by minimizing the error in mapping the remaining points with the computed pose. The results we obtain for a wide range of head orientations and scales proved to be quite accurate. In addition, the computational efficiency of the system is high enough to be used in real-time head tracking or a model-based video coding system.

Original languageEnglish (US)
Title of host publicationComputer Analysis of Images and Patterns - 6th International Conference, CAIP 1995, Proceedings
EditorsVaclav Hlavac, Radim Sara
Number of pages8
ISBN (Print)3540602682, 9783540602682
StatePublished - 1995
Event6th International Conference on Computer Analysis of Images and Patterns, CAIP 1995 - Prague, Czech Republic
Duration: Sep 6 1995Sep 8 1995

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other6th International Conference on Computer Analysis of Images and Patterns, CAIP 1995
Country/TerritoryCzech Republic

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science


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