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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.11 No.5
- 발행연도
- 2022.10
- 수록면
- 305 - 315 (11page)
- DOI
- 10.5573/IEIESPC.2022.11.5.305
이용수
초록· 키워드
오류제보하기
Light field images have drawn a great deal of interest owing to their flexible post-processing and versatile functionalities. However, the tremendous data volume has imposed a practical limit in applications, which requires a better way to represent and compress the data. In this paper, we propose a practical representation and coding scheme for light field data with a special emphasis on retaining the refocusing functionality as much as possible. Under the proposed method, light field data are represented and compressed in the form of a rendered all-in-focus image and a depth map. Before encoding, the all-in-focus image is rendered accurately based on the depth map using the proposed difference focus measure. At the decoder, a focal stack comprising multiple images having different focus levels can be reconstructed by applying a defocusing function to the compressed all-in-focus image where the defocusing function parameter depends on the selected depth level of the compressed depth map. Compared with well-known state-of-the-art methods that compress the Fourier Disparity Layer or the focal stack, the proposed coding scheme shows much smaller loss in the refocusing capability (16.2% and 17.8% less than two state-of-the-art methods) and provides PSNR improvements of 1.60㏈ to 2.38㏈ at the same compression ratio.
목차
Abstract
1. Introduction
2. Related Work
3. The Proposed Scheme
4. Performance Evaluation
5. Conclusion
References
참고문헌 (41)
참고문헌 신청
H. Li, C. Guo, and S. Jia, “High-Resolution Light-Field Microscopy,” in Frontiers in Optics 2017, OSA Technical Digest (online) (Optica Publishing Group), paper FW6D.3, 2017. Article (CrossRef Link)
D. Tsai, D. G. Dansereau, T. Peynot, P. Corke, “Image-based visual servoing with light field cameras,” IEEE Robotics and Automation Letters, 2(2), pp. 912-919, 2017. Article (CrossRef Link)
A. Dricot, J. Jung, M. Cagnazzo, B. Pesquet, F. Dufaux, P. T. Kovács, V. K. “Adhikarla,Subjective evaluation of Super Multi-View compressed contents on high-end light-field 3D displays,” Signal Processing: Image Communication, 39, pp. 369-385, 2015. Article (CrossRef Link)
A. Vetro, S. Yea, W. Matusik, H. Pfister, M. Zwicker, “Method and system for acquiring, encoding, decoding and displaying 3D light fields,” U.S. Patent No. 7,916,934. 29, Mar. 2011. Article (CrossRef Link)
G. Wu, et al., “Light field image processing: An overview,” IEEE Journal of Selected Topics in Signal Processing, 11.7, pp. 926-954, 2017. Article (CrossRef Link)
D. Tsai, D. G. Dansereau, T. Peynot, P. Corke, “Image-based visual servoing with light field cameras,” IEEE Robotics and Automation Letters, 2(2), pp. 912-919, 2017. Article (CrossRef Link)
A. Dricot, J. Jung, M. Cagnazzo, B. Pesquet, F. Dufaux, P. T. Kovács, V. K. “Adhikarla,Subjective evaluation of Super Multi-View compressed contents on high-end light-field 3D displays,” Signal Processing: Image Communication, 39, pp. 369-385, 2015. Article (CrossRef Link)
A. Vetro, S. Yea, W. Matusik, H. Pfister, M. Zwicker, “Method and system for acquiring, encoding, decoding and displaying 3D light fields,” U.S. Patent No. 7,916,934. 29, Mar. 2011. Article (CrossRef Link)
G. Wu, et al., “Light field image processing: An overview,” IEEE Journal of Selected Topics in Signal Processing, 11.7, pp. 926-954, 2017. Article (CrossRef Link)
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