Work

Prism-based self-calibration virtual cameras to generate rotating view fields for 6DOF pose measurement

Year: 2025

Type: article

Abstract: Pose measurement for the six degrees of freedom (6DOF) determination is a key task in autonomous navigation and smart manufacturing. In this paper, self-calibration virtual cameras are proposed using what we believe to be a novel rotating-prism-embedded camera to get object 6DOF information without camera calibration in spatially constrained scenes. It includes camera self-calibration using four control points to represent any spatial point and accurate 6DOF recovery by fusing multi-view prior information. The former allows the focal length and distortion coefficient extraction based on maximum likelihood estimation, while the latter enables high-quality pose metrology using rotation averaging and translation averaging. Compared with the mainstream uncalibrated methods, the proposed method provides higher measurement accuracy, stability, and efficiency even if large noise and few points. The experiments show that the proposed method can correct the distorted images induced by the lens and prisms and extract 6DOF information using an uncalibrated camera.

Source: Optics Express

DOI: 10.1364/oe.559610

Authors: Zhaojun Deng, Anhu Li

Institution: Tongji University

Language: English

Topic: Optical measurement and interference techniques

Subfield: Computer Vision and Pattern Recognition

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, National Postdoctoral Program for Innovative Talents