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Enhancing Resolution for Flash LiDAR with Multi-View Imaging Optics and Range Image Tiling.

Jui-Hsiang Yen1,2, Shao-Jung Li1, Zih-Ying Fang1,2

  • 1Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 300, Taiwan.

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|September 19, 2025
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Summary
This summary is machine-generated.

Researchers enhanced flash LiDAR resolution by integrating multi-view optics. This innovation overcomes pixel size limitations, achieving a fourfold increase in spatial resolution for depth sensing applications.

Keywords:
depth sensing calibrationflash LiDARrange image tilingtime of flight

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Area of Science:

  • Optics and Photonics
  • Computer Vision
  • Robotics

Background:

  • Flash LiDAR is crucial for capturing depth information in a single shot.
  • Current flash LiDAR systems face resolution limitations due to sensor pixel size constraints.

Purpose of the Study:

  • To address the resolution limitations in flash LiDAR technology.
  • To propose and validate a novel architecture for enhanced spatial resolution.

Main Methods:

  • Introduction of multi-view imaging optics into the flash LiDAR device.
  • Implementation of scanning illumination and range image tiling.
  • Development of calibration procedures and shielding mechanisms to mitigate crosstalk and stray light.

Main Results:

  • Achieved a fourfold increase in spatial resolution.
  • Demonstrated the feasibility of the proposed architecture through a prototype and experiments.
  • Ensured the quality of the tiled range image.

Conclusions:

  • The proposed multi-view imaging approach offers a viable optical solution for significantly enhancing flash LiDAR resolution.
  • The concept is extendable for further resolution improvements through array expansion.
  • This advancement has implications for improved depth sensing in various applications.