Spatial competition on the master-saliency map.
The saliency map model (Itti & Koch, 2000) is a hierarchically structured computational model, simulating visual saliency processing. Iso-feature processing on feature maps and conspicuity maps precedes cross-dimensional signal processing on the master map, where the most salient location of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2013-07-01
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| Series: | Frontiers in Psychology |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00394/full |
| _version_ | 1817969059732389888 |
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| author | Ursula eSchade Cristina eMeinecke |
| author_facet | Ursula eSchade Cristina eMeinecke |
| author_sort | Ursula eSchade |
| collection | DOAJ |
| description | The saliency map model (Itti & Koch, 2000) is a hierarchically structured computational model, simulating visual saliency processing. Iso-feature processing on feature maps and conspicuity maps precedes cross-dimensional signal processing on the master map, where the most salient location of the visual field is selected. This texture segmentation study focuses on a possible spatial structure on the master map. In four experiments the spatial distance between a texture irregularity in the stimulus (‘target’) and a cross-dimensional task irrelevant texture irregularity in the backward mask (‘patch’) was varied. The results show that the target-patch distance modulates target detection, and that this modulation is limited to critical distances around the target. We conclude that the signals from different feature dimensions compete on a spatial master map. There is first evidence that the critical distances increase with target eccentricity. |
| first_indexed | 2024-04-13T20:16:36Z |
| format | Article |
| id | doaj.art-aac74de6e04d4a389e8e0c2bc1926fae |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-04-13T20:16:36Z |
| publishDate | 2013-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-aac74de6e04d4a389e8e0c2bc1926fae2022-12-22T02:31:41ZengFrontiers Media S.A.Frontiers in Psychology1664-10782013-07-01410.3389/fpsyg.2013.0039446494Spatial competition on the master-saliency map.Ursula eSchade0Cristina eMeinecke1University of Nuremberg-Erlangen, GermanyUniversity of Nuremberg-Erlangen, GermanyThe saliency map model (Itti & Koch, 2000) is a hierarchically structured computational model, simulating visual saliency processing. Iso-feature processing on feature maps and conspicuity maps precedes cross-dimensional signal processing on the master map, where the most salient location of the visual field is selected. This texture segmentation study focuses on a possible spatial structure on the master map. In four experiments the spatial distance between a texture irregularity in the stimulus (‘target’) and a cross-dimensional task irrelevant texture irregularity in the backward mask (‘patch’) was varied. The results show that the target-patch distance modulates target detection, and that this modulation is limited to critical distances around the target. We conclude that the signals from different feature dimensions compete on a spatial master map. There is first evidence that the critical distances increase with target eccentricity.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00394/fullPop-outsaliency maptexture segmentationcross-dimensional signal competitioncritical distance |
| spellingShingle | Ursula eSchade Cristina eMeinecke Spatial competition on the master-saliency map. Frontiers in Psychology Pop-out saliency map texture segmentation cross-dimensional signal competition critical distance |
| title | Spatial competition on the master-saliency map. |
| title_full | Spatial competition on the master-saliency map. |
| title_fullStr | Spatial competition on the master-saliency map. |
| title_full_unstemmed | Spatial competition on the master-saliency map. |
| title_short | Spatial competition on the master-saliency map. |
| title_sort | spatial competition on the master saliency map |
| topic | Pop-out saliency map texture segmentation cross-dimensional signal competition critical distance |
| url | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2013.00394/full |
| work_keys_str_mv | AT ursulaeschade spatialcompetitiononthemastersaliencymap AT cristinaemeinecke spatialcompetitiononthemastersaliencymap |