Loading...
Please wait, while we are loading the content...
On the plausibility of the discriminant center-surround hypothesis for visual saliency.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gao, Dashan Mahadevan, Vijay S. Vasconcelos, Nuno |
| Copyright Year | 2008 |
| Abstract | It has been suggested that saliency mechanisms play a role in perceptual organization. This work evaluates the plausibility of a recently proposed generic principle for visual saliency: that all saliency decisions are optimal in a decision-theoretic sense. The discriminant saliency hypothesis is combined with the classical assumption that bottom-up saliency is a center-surround process to derive a (decision-theoretic) optimal saliency architecture. Under this architecture, the saliency of each image location is equated to the discriminant power of a set of features with respect to the classification problem that opposes stimuli at center and surround. The optimal saliency detector is derived for various stimulus modalities, including intensity, color, orientation, and motion, and shown to make accurate quantitative predictions of various psychophysics of human saliency for both static and motion stimuli. These include some classical nonlinearities of orientation and motion saliency and a Weber law that governs various types of saliency asymmetries. The discriminant saliency detectors are also applied to various saliency problems of interest in computer vision, including the prediction of human eye fixations on natural scenes, motion-based saliency in the presence of ego-motion, and background subtraction in highly dynamic scenes. In all cases, the discriminant saliency detectors outperform previously proposed methods from both the saliency and the general computer vision literatures. |
| Starting Page | 52 |
| Ending Page | 59 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.svcl.ucsd.edu/publications/conference/2008/Cosyne2008/Cosyne2008_abstract.pdf |
| Alternate Webpage(s) | http://www.svcl.ucsd.edu/~dgao/papers/budiscsal_motion_JOV.pdf |
| Alternate Webpage(s) | http://www.svcl.ucsd.edu/publications/journal/2008/jov/jov08.pdf |
| PubMed reference number | 19146246v1 |
| Alternate Webpage(s) | https://doi.org/10.1167/8.7.13 |
| DOI | 10.1167/8.7.13 |
| Journal | Journal of vision |
| Volume Number | 8 |
| Issue Number | 7 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Area striata structure Detectors Generic Drugs Literature Optic Nerve Glioma, Childhood |
| Content Type | Text |
| Resource Type | Article |
