Paper
29 April 2022 A dual-pathways fusion network for seeing background objects in light field
Chengze Song, Wen Li, Xinyu Pi, Chao Xiong, Xiaochuan Guo
Author Affiliations +
Proceedings Volume 12247, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2022); 122471K (2022) https://doi.org/10.1117/12.2636815
Event: 2022 International Conference on Image, Signal Processing, and Pattern Recognition, 2022, Guilin, China
Abstract
Background objects obscured in some sub-apertures of light-field cameras can be seen by other sub-apertures. Consequently, occluded surfaces are possible to be reconstructed from LF images. So far, Current foreground occlusion elimination approaches based on LF usually extract only the complementary information about background objects among different sub-aperture images to get an occlusion-free center view, which cannot get ideal performances in reconstructing visually realistic and semantically plausible pixels for occluded areas. In this paper, we suggest a easy but efficient LF foreground occlusions elimination way using a dual-pathways fusion network, which is a encoder-decoder network using convolution operations. In our method, we first construct all sub-aperture images(SAIs) as an input tensor and then render it to the encoder to incorporate information between SAIs. In particular, except for a pathway to synthesize center view, we also set another pathway to predict the foreground occlusion. By fusing these two pathways’ outputs, we not only reserve more information belonging to occluded surfaces but also fill the occluded regions with better visual effects. Experimental results indicate that our method is superior to the state-of-the-art approaches and the occlusion-free view looks more realistic. Our source codes will be available.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chengze Song, Wen Li, Xinyu Pi, Chao Xiong, and Xiaochuan Guo "A dual-pathways fusion network for seeing background objects in light field", Proc. SPIE 12247, International Conference on Image, Signal Processing, and Pattern Recognition (ISPP 2022), 122471K (29 April 2022); https://doi.org/10.1117/12.2636815
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KEYWORDS
Convolution

Cameras

Computer programming

Feature extraction

Network architectures

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