Optical distortion correction for an ultra-short throw with a wrinkled-surface target

Yue Liu; Dewen Cheng; Yongtian Wang

doi:10.1117/12.2603763

14 November 2021 Optical distortion correction for an ultra-short throw with a wrinkled-surface target

Yue Liu, Dewen Cheng, Yongtian Wang

Proceedings Volume 11914, SPIE Future Sensing Technologies 2021; 119140Z (2021) https://doi.org/10.1117/12.2603763
Event: SPIE Future Sensing Technologies, 2021, Online Only

Abstract

Ultra-throw projector has been widely used in the projection application of large-FOV and short projection distance. However, the projection imaging distortion problem cannot be neglected due to the uncertain factor, such as the unsmooth factor of projection surface. In this paper, we proposed the image predistortion method based on radial basis function (RBF) image warping method to correct the projection distortion due to the unsmooth or wrinkled projection surface. The RBF image predistortion method and chief ray tracing method are used to realize a high-precision image predistortion. In addition, the distortion effect caused by the wrinkled projection surface with different depths are simulated. The distortion correction effects are also verified to less than 1% by the ray-tracing simulations.

Conference Presentation

Citation Download Citation

Yue Liu, Dewen Cheng, and Yongtian Wang "Optical distortion correction for an ultra-short throw with a wrinkled-surface target", Proc. SPIE 11914, SPIE Future Sensing Technologies 2021, 119140Z (14 November 2021); https://doi.org/10.1117/12.2603763

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