Tiered Scene Labeling with Dynamic Programming

author: Olga Veksler, Department of Computer Science, University of Western Ontario
published: July 19, 2010,   recorded: June 2010,   views: 5252
Categories

Slides

Related Open Educational Resources

Related content

Report a problem or upload files

If you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
Lecture popularity: You need to login to cast your vote.
  Bibliography

Description

Dynamic programming (DP) has been a useful tool for a variety of computer vision problems. However its application is usually limited to problems with a one dimensional or low treewidth structure, whereas most domains in vision are at least 2D. In this paper we show how to apply DP for pixel labeling of 2D scenes with simple “tiered” structure. While there are many variations possible, for the applications we consider the following tiered structure is appropriate. An image is first divided by horizontal curves into the top, middle, and bottom regions, and the middle region is further subdivided vertically into subregions. Under these constraints a globally optimal labeling can be found using an efficient dynamic programming algorithm. We apply this algorithm to two very different tasks. The first is the problem of geometric class labeling where the goal is to assign each pixel a label such as “sky”, “ground”, and “surface above ground”. The second task involves incorporating simple shape priors for segmentation of an image into the “foreground” and “background” regions.

See Also:

Download slides icon Download slides: cvpr2010_veksler_tsld_01.ppt (5.6 MB)

Download article icon Download article: cvpr2010_veksler_tsld_01.pdf (2.2 MB)


Help icon Streaming Video Help

Link this page

Would you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !

Write your own review or comment:

make sure you have javascript enabled or clear this field: