Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera
Single-lens-based optical range finding systems were developed as an efficient, compact alternative for conventional stereo camera systems. Among various single-lens-based approaches, a multiple color-filtered aperture (MCA) system can generate disparity information among color channels, as well as...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-09-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/10/3174 |
| _version_ | 1798002511583379456 |
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| author | Shuxiang Song Sangwoo Park Joonki Paik |
| author_facet | Shuxiang Song Sangwoo Park Joonki Paik |
| author_sort | Shuxiang Song |
| collection | DOAJ |
| description | Single-lens-based optical range finding systems were developed as an efficient, compact alternative for conventional stereo camera systems. Among various single-lens-based approaches, a multiple color-filtered aperture (MCA) system can generate disparity information among color channels, as well as normal color information. In this paper, we consider a dual color-filtered aperture (DCA) system as the most minimal version of the MCA system and present a novel inter-color image registration algorithm for disparity estimation. This proposed registration algorithm consists of three steps: (i) color channel independent feature extraction; (ii) feature-based adaptive weight disparity estimation; and (iii) color mapping matrix (CMM)-based cross-channel image registration. Experimental results show that the proposed method can not only generate an accurate disparity map, but also realize high quality cross-channel registration with a disparity prior for DCA-based range finding and color image enhancement. |
| first_indexed | 2024-04-11T11:53:15Z |
| format | Article |
| id | doaj.art-a685755086454e9b9b66f1a8aff481c4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T11:53:15Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-a685755086454e9b9b66f1a8aff481c42022-12-22T04:25:15ZengMDPI AGSensors1424-82202018-09-011810317410.3390/s18103174s18103174Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture CameraShuxiang Song0Sangwoo Park1Joonki Paik2Department of Image, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, KoreaDepartment of Image, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, KoreaDepartment of Image, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, KoreaSingle-lens-based optical range finding systems were developed as an efficient, compact alternative for conventional stereo camera systems. Among various single-lens-based approaches, a multiple color-filtered aperture (MCA) system can generate disparity information among color channels, as well as normal color information. In this paper, we consider a dual color-filtered aperture (DCA) system as the most minimal version of the MCA system and present a novel inter-color image registration algorithm for disparity estimation. This proposed registration algorithm consists of three steps: (i) color channel independent feature extraction; (ii) feature-based adaptive weight disparity estimation; and (iii) color mapping matrix (CMM)-based cross-channel image registration. Experimental results show that the proposed method can not only generate an accurate disparity map, but also realize high quality cross-channel registration with a disparity prior for DCA-based range finding and color image enhancement.http://www.mdpi.com/1424-8220/18/10/3174color channel registrationdisparity estimationcomputational camera system |
| spellingShingle | Shuxiang Song Sangwoo Park Joonki Paik Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera Sensors color channel registration disparity estimation computational camera system |
| title | Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera |
| title_full | Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera |
| title_fullStr | Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera |
| title_full_unstemmed | Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera |
| title_short | Segmentation-Based Color Channel Registration for Disparity Estimation of Dual Color-Filtered Aperture Camera |
| title_sort | segmentation based color channel registration for disparity estimation of dual color filtered aperture camera |
| topic | color channel registration disparity estimation computational camera system |
| url | http://www.mdpi.com/1424-8220/18/10/3174 |
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