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Proceedings Paper

Real-time correction and fusion for optical distortions in head-mounted displays
Author(s): Dongdong Weng; Yue Liu; Yongtian Wang
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Paper Abstract

Free-form-surface prism (FFSP) based HMDs have widespread application value and prospect in the fields of virtual reality and augmented reality. A key problem of the FFSP-based HMDs is the correction for optical distortions. The distortion correction can be performed with an additional optical system, but the additional system will add the expense and complexity of the HMDs. This paper presents a software-based method to correct optical distortions in FFSP-based HMDs, in which a distortion map with predistortion information is constructed to correct the distortion and a pixelfusion process is performed to improve the quality of the predistortion image. The correction process and the fusion process are accomplished by GPU in real-time. The performance of the proposed method is analyzed and validated via an inspection system, in which a high-performance CCD camera is used to evaluate the result of the correction and fusion.

Paper Details

Date Published: 26 November 2009
PDF: 13 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 75060I (26 November 2009); doi: 10.1117/12.839659
Show Author Affiliations
Dongdong Weng, Beijing Institute of Technology (China)
Yue Liu, Beijing Institute of Technology (China)
Yongtian Wang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)

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