• Optoelectronics Letters
  • Vol. 18, Issue 5, 293 (2022)
Xin JIA1, Shourui YANG1、*, and Diyi GUAN2
Author Affiliations
  • 1The Engineering Research Center of Learning-Based Intelligent System and the Key Laboratory of Computer Vision and System of Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
  • 2Zhejiang University of Technology, Hangzhou 310014, China
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    DOI: 10.1007/s11801-022-2055-0 Cite this Article
    JIA Xin, YANG Shourui, GUAN Diyi. Semantics-aware transformer for 3D reconstruction from binocular images[J]. Optoelectronics Letters, 2022, 18(5): 293 Copy Citation Text show less

    Abstract

    Existing multi-view three-dimensional (3D) reconstruction methods can only capture single type of feature from input view, failing to obtain fine-grained semantics for reconstructing the complex shapes. They rarely explore the semantic association between input views, leading to a rough 3D shape. To address these challenges, we propose a semantics-aware transformer (SATF) for 3D reconstruction. It is composed of two parallel view transformer encoders and a point cloud transformer decoder, and takes two red, green and blue (RGB) images as input and outputs a dense point cloud with richer details. Each view transformer encoder can learn a multi-level feature, facilitating characterizing fine-grained semantics from input view. The point cloud transformer decoder explores a semantically-associated feature by aligning the semantics of two input views, which describes the semantic association between views. Furthermore, it can generate a sparse point cloud using the semantically-associated feature. At last, the decoder enriches the sparse point cloud for producing a dense point cloud with richer details. Extensive experiments on the ShapeNet dataset show that our SATF outperforms the state-of-the-art methods.
    JIA Xin, YANG Shourui, GUAN Diyi. Semantics-aware transformer for 3D reconstruction from binocular images[J]. Optoelectronics Letters, 2022, 18(5): 293
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