Precise 4D Facial Imaging System Composed by Multiple Infrared Structured Light Sensors and Color Cameras - 25.26
Title:
Precise 4D Facial Imaging System Composed by Multiple Infrared Structured Light Sensors and Color Cameras
Authors:
Di WU 1, Yuping YE 2,3, Bin REN 1,4, Jixin LIANG 1,4, Zhan SONG 1,5
1 Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China;
2 School of Smart Marine Science and Technology, Fujian University of Technology, Fuzhou, China;
3 Fujian Provincial Key Laboratory of Marine Smart Equipment, Fuzhou, China;
4 Southern University of Science and Technology, Shenzhen, China;
5 The Chinese University of Hong Kong, Hong Kong, China
Keywords:
structured light, 4D face, multi-view
Abstract:
This paper presents a high-precision, multi-view 4D facial imaging system based on structured light. The system comprises three structured-light devices operating at distinct infrared wavelengths. Imaging devices equipped with projectors operating at the 730 nm, 850 nm, and 950 nm bands are deployed at the left-front, front, and right-front positions relative to the face, respectively. Synchronous multi-view scanning is achieved by using distinct wavelength bands combined with an external trigger. In each device, the infrared camera work in conjunction with the projector to reconstruct a 3D point cloud, while the RGB camera at the same view synchronously acquires the corresponding texture. To meet real-time processing requirements, we use CUDA to optimize and accelerate core algorithms, including structured-light decoding, point-cloud meshing, point-cloud reprojection, and normal-map generation. Experiments show that the system maintains a reconstruction accuracy of 0.1 mm while achieving up to 29 Hz full-face 3D reconstruction and high-fidelity rendering exceeding 50 Hz. This provides high-precision, low-latency 3D sensing for real-time applications such as medical diagnosis and virtual reality.
Full paper:
Note:
This paper is currently under review for publication in the 3DBDOY.TECH Journal - Vol. 2, 2025 (jrnl.3dbody.tech).
It will be updated also in this page once the review process is concluded.
Presentation:
VIDEO will be available here in Q3.2026.
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How to Cite (MLA):
D. Wu et al., "Precise 4D Facial Imaging System Composed by Multiple Infrared Structured Light Sensors and Color Cameras", Proceedings of 3DBODY.TECH 2025 - 16th International Conference and Expo on 3D/4D Body Scanning, Data and Processing Technologies, Lugano, Switzerland, 21-22 Oct. 2025, #26, https://doi.org/10.15221/25.26
Details:
Proceedings: 3DBODY.TECH 2025, 21-22 Oct. 2025, Lugano, Switzerland
Paper/Presentation: #26
DOI: https://doi.org/10.15221/25.26
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