Robust Depth Estimation From Multi-Focus Plenoptic Images

Cunha, Francisco; Thomaz, Lucas; Tavora, Luis M. N.; Assunção, Pedro A. A.; Fonseca-Pinto, Rui; Faria, Sérgio M. M.

http://hdl.handle.net/10400.8/13587

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Robust Depth Estimation from Multi-Focus Plenoptic Images.pdf	This paper describes a robust depth estimation algorithm for multi-focus plenoptic images. The main feature of the proposed method consists of a hybrid template matching scheme built-upon intensity and local phase information, which adapts to the blurriness of neighbouring lenslet microimages. By reducing the impact of defocusblur on the template matching accuracy, the proposed method efficiently handles the varying triangulation baseline over the depth-of-field, thus discarding the need for scene-related information such as the expected range of disparities. Experimental results demonstrate the robustness of the proposed method over the most used commercially available depth estimation algorithm, achieving a reduction of 73% on the depth estimation error.	155.25 KB	Adobe PDF	Download

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Authors

Cunha, Francisco

Thomaz, Lucas

Tavora, Luis M. N.

Assunção, Pedro A. A.

Fonseca-Pinto, Rui

Faria, Sérgio M. M.

Abstract(s)

This paper describes a robust depth estimation algorithm for multi-focus plenoptic images. The main feature of the proposed method consists of a hybrid template matching scheme built-upon intensity and local phase information, which adapts to the blurriness of neighbouring lenslet microimages. By reducing the impact of defocusblur on the template matching accuracy, the proposed method efficiently handles the varying triangulation baseline over the depth-of-field, thus discarding the need for scene-related information such as the expected range of disparities. Experimental results demonstrate the robustness of the proposed method over the most used commercially available depth estimation algorithm, achieving a reduction of 73% on the depth estimation error.

Description

EISBN - 978-1-7281-6395-6
Article number - 9190674; Conference name - 2020 IEEE International Conference on Image Processing, ICIP 2020; Conference city - Abu Dhabi; Conference date - 25 October 2020 - 28 October 2020; Conference code - 165772

Keywords

Light Field Depth Estimation Multi-focus Lenslet

URI

http://hdl.handle.net/10400.8/13587

Citation

F. Cunha, L. A. Thomaz, L. M. N. Tavora, P. A. A. Assunção, R. Fonseca-Pinto and S. M. M. Faria, "Robust Depth Estimation From Multi-Focus Plenoptic Images," 2020 IEEE International Conference on Image Processing (ICIP), Abu Dhabi, United Arab Emirates, 2020, pp. 2626-2630, doi: https://doi.org/10.1109/ICIP40778.2020.9190674.