High-precision real-time three-dimensional reconstruction system, method and medium based on heterogeneous acceleration

By combining blue light structured light patterns projected by MEMS micro-mirrors with heterogeneous accelerated computing modules, the problem of balancing medium-to-high precision, real-time performance, cost, and system ecosystem that cannot be simultaneously met in existing technologies has been solved, achieving high-precision real-time 3D reconstruction.

CN122457751APending Publication Date: 2026-07-24ARTIFICIAL INTELLIGENCE & SENSING TECH (AINSTEC) INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ARTIFICIAL INTELLIGENCE & SENSING TECH (AINSTEC) INST CO LTD
Filing Date
2026-03-20
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing structured light 3D vision measurement technology cannot simultaneously meet the balance of medium-to-high precision, real-time performance, cost, and system ecosystem, making it difficult to realize the core requirements of consumer-grade integrated 3D scanners for scanning and processing.

Method used

A MEMS micro-mirror module is used to project blue light structured light patterns. Combined with a binocular acquisition module and a heterogeneous acceleration computing module, a high-precision encoding module is used to configure 7 frames of complementary Gray code and 4 frames of phase-shift patterns. Multi-core CPU and GPU supporting OpenCL are used for multi-processor collaborative acceleration computing to achieve 3D reconstruction.

Benefits of technology

It achieves a significant improvement in 3D reconstruction accuracy, a substantial enhancement in real-time processing performance, and optimizes system energy efficiency and size, achieving a comprehensive balance of accuracy, real-time performance, cost, and ecosystem, thus meeting the needs of consumer-grade integrated 3D scanners for scanning and processing.

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Abstract

The application discloses a high-precision real-time three-dimensional reconstruction system based on heterogeneous acceleration, comprising: a high-precision coding module configured with an 11-frame structured light sequence composed of 7 frames of complementary Golay codes and 4 frames of phase shift patterns; a MEMS micro-mirror module dynamically projects a blue light structured light pattern in a blue light wave band; a binocular acquisition module synchronously acquires reflected light patterns by using sensors with a quantum efficiency peak area matched with the blue light wave band; a heterogeneous acceleration calculation module adopts a Soc platform supporting a unified memory architecture to call a multi-core CPU and a GPU supporting OpenCL for multi-processor collaborative acceleration calculation, and adopts an operator chain strategy to dynamically configure a calculation pipeline; the application can realize significant improvement of three-dimensional reconstruction precision by cooperation of MEMS blue light and high-quantum-efficiency sensors, combined coding of complementary Golay codes and phase shift, OpenCL heterogeneous acceleration and binocular synchronous acquisition optimization, and achieve comprehensive balance of precision, real-time performance, cost and ecological adaptation.
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