PROCEDURE ENABLING SIMULATION AND IN-DEPTH ANALYSIS OF OPTICAL EFFECTS IN CAMERA-BASED TIME-OF-FLIGHT SENSORS

International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences

Baumgart, M.^1¹  Druml, N.^2² 

[1] CTR Carinthian Tech Research AG, Europastr. 12, Villach, Austria^1;Infineon Technologies Austria AG, Development Center Graz, Babenberger Str. 10, 8020 Graz, Austria^2

关键词: Time-of-Flight;    ToF camera;    optical simulation procedure;    3D reconstruction;    ground truth;    transient imaging;   

DOI  :  10.5194/isprs-archives-XLII-2-83-2018

学科分类：地球科学(综合)

来源: Copernicus Publications

【 摘 要 】

This paper presents a simulation approach for Time-of-Flight cameras to estimate sensor performance and accuracy, as well as to help understanding experimentally discovered effects. The main scope is the detailed simulation of the optical signals. We use a raytracing-based approach and use the optical path length as the master parameter for depth calculations. The procedure is described in detail with references to our implementation in Zemax OpticStudio and Python. Our simulation approach supports multiple and extended light sources and allows accounting for all effects within the geometrical optics model. Especially multi-object reflection/scattering ray-paths, translucent objects, and aberration effects (e.g. distortion caused by the ToF lens) are supported. The optical path length approach also enables the implementation of different ToF senor types and transient imaging evaluations. The main features are demonstrated on a simple 3D test scene.

【 授权许可】

CC BY