Computing Reviews
Today's Issue Hot Topics Search Browse Recommended My Account Log In
Review Help
Search
Pointing in pictorial space: quantifying the perceived relative depth structure in mono and stereo images of natural scenes
Wijntjes M., Pont S. ACM Transactions on Applied Perception7 (4):1-8,2010.Type:Article
Date Reviewed: Dec 3 2010

Stereopsis is the process of creating a three-dimensional (3D) illusion based on two slightly different projections of a scene. Each projection is projected onto one eye. This effect, exploited in photographic images since the 19th century and, more recently, in an abundance of 3D movies, exists because of the eye’s horizontal separation.

Wijntjes and Pont’s paper is a study of the differences in depth perception based on the use of three natural scenes: a bird flock, a flower bouquet, and a scene of a group of people. Mono and stereo images of these scenes are presented to a group of eight subjects in random order. In each session of the experiment, subjects are asked to perform a pointing task--adjust a pointer, manipulated by a computer mouse, to point toward an object in the images. The stimulus (a dot on the image) is only presented to the left eye, in order to avoid disparities when the stereo images are presented.

As the data is limited and the natural scenes are fairly complex, not many firm results are reported. The authors discuss observations and rationalize why some of the observed parameters may be surprising. One of the conclusions is that for two of the three scenes, the relative depth perception is better in stereo than in mono. The subjects also indicate that the stereo images have more depth. However, it seems that the improvement from binocular disparity typically depends on the contents of the scene itself.

Overall, this is an interesting paper for those studying cognitive phenomena in humans, or those trying to build efficient, anthropomorphic human-computer interfaces and virtual environments.

Reviewer:  Goran Trajkovski Review #: CR138612 (1104-0446)
Bookmark and Share
  Featured Reviewer  
Would you recommend this review?
yes
no
Other reviews under "Psychology": Date
Influences of motives to play and time spent gaming on the negative consequences of adolescent online computer gaming
Hellström C., Nilsson K., Leppert J., Åslund C. Computers in Human Behavior 28(4): 1379-1387, 2012. Type: Article
Nov 26 2012
Unified theories of cognition
Newell A., Harvard University Press, Cambridge, MA, 1990. Type: Book (9789780674920996)
Jul 1 1991
Emotions of animals and humans: comparative perspectives
Watanabe S., Kuczaj S., Springer Publishing Company, Incorporated, New York, NY, 2012.  296, Type: Book (978-4-431541-22-6)
Jan 11 2013
more...

E-Mail This Printer-Friendly
Send Your Comments
Contact Us
Reproduction in whole or in part without permission is prohibited.   Copyright 2004 Reviews.com™
Terms of Use
| Privacy Policy