Depth Estimation Based on Semantic Guidance for Light Field Image

DENG Huiping; SHENG Zhichao; XIANG Sen; WU Jing

doi:10.11999/JEIT210545

Volume 44 Issue 8

Aug. 2022

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Article Navigation > Journal of Electronics & Information Technology > 2022 > 44(8): 2940-2948

DENG Huiping, SHENG Zhichao, XIANG Sen, WU Jing. Depth Estimation Based on Semantic Guidance for Light Field Image[J]. Journal of Electronics & Information Technology, 2022, 44(8): 2940-2948. doi: 10.11999/JEIT210545

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DENG Huiping, SHENG Zhichao, XIANG Sen, WU Jing. Depth Estimation Based on Semantic Guidance for Light Field Image[J]. Journal of Electronics & Information Technology, 2022, 44(8): 2940-2948. doi: 10.11999/JEIT210545

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Depth Estimation Based on Semantic Guidance for Light Field Image

doi: 10.11999/JEIT210545 cstr: 32379.14.JEIT210545

1.
School of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
2.
Engineering Research Center for Metallurgical Automation and Measurement Technology of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China

Received Date: 2021-06-08
Accepted Date: 2022-03-15
Rev Recd Date: 2022-03-10

Available Online: 2022-03-21

Publish Date: 2022-08-17

Abstract

Abstract

Light Field Depth Estimation(LFDE) is critical to the related applications such as 3D reconstruction, automatic driving and object tracking. However, the existing depth learning-based methods bring details lost on the edge, weak texture and other complex areas, because of ignoring the geometric characteristics of the light field image in the learning network. This paper proposes a semantic guided LFDE network, which utilizes contextual information of light field images to solve ill posed problems in complex regions. Encoder-decoder structure of semantic perception module is designed to reconstruct the spatial information for better obtaining the object boundary. The spatial pyramid pooling structure uses the atrous convolution to increase the receptive field and capture the multi-scale contextual information. Then, an adaptive local cross-channel interaction feature attention module without dimensionality reduction is used to eliminate information redundancy, and multi-channels are effectively fused. Finally, the stacked hourglass is introduced to connect multiple hourglass modules in series, and more rich context information is obtained by using the encoder-decoder structure. The experimental results on 4D light field dataset new HCI demonstrate that the proposed method has higher accuracy and generalization ability, which is superior to the depth estimation method compared, and retains better edge details.
- Light field image,
- Depth estimation,
- Semantic perception,
- Attention mechanism

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References(21)

References

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