U.S. flag

An official website of the United States government, Department of Justice.

NCJRS Virtual Library

The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works.
Click here to search the NCJRS Virtual Library

Calibration of Dual Resolution Dual Camera Structured Light Systems

NCJ Number
309481
Journal
Optics and Lasers in Engineering Volume: 182 Issue: 108472 Dated: November 2024
Author(s)
Yuchen Yang; Ian Bortins; David P. Baldwin; Song Zhang
Date Published
November 2024
Annotation

This article explains the underlying principles and experimental results to evaluate the effectiveness of the proposed framework for the calibration of dual-resolution, dual-view structured light systems.

Abstract

This paper introduces a calibration framework designed for dual-resolution dual-camera structured light systems. The calibration process for each camera-projector pair adheres to a conventional pixel-wise calibration method for structured light systems. To align the two cameras' coordinate system, the method employs a white planar object and virtual feature points. These points are generated based on the dual-directional absolute phase maps obtained from each camera. By leveraging the pixel-wise calibration results from both single camera-projector pairs, this approach determines the geometric relationship between the camera coordinates via rigid transformation. Experimental results demonstrate the proposed method's high calibration precision for each camera-projector pair and the accurate alignment of coordinates between these two cameras. (Published Abstract Provided)