24 October 2017 The research on multi-projection correction based on color coding grid array
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Proceedings Volume 10459, AOPC 2017: Optical Storage and Display Technology; 104590F (2017) https://doi.org/10.1117/12.2284359
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
There are many disadvantages such as lower timeliness, greater manual intervention in multi-channel projection system, in order to solve the above problems, this paper proposes a multi-projector correction technology based on color coding grid array. Firstly, a color structured light stripe is generated by using the De Bruijn sequences, then meshing the feature information of the color structured light stripe image. We put the meshing colored grid intersection as the center of the circle, and build a white solid circle as the feature sample set of projected images. It makes the constructed feature sample set not only has the perceptual localization, but also has good noise immunity. Secondly, we establish the subpixel geometric mapping relationship between the projection screen and the individual projectors by using the structure of light encoding and decoding based on the color array, and the geometrical mapping relation is used to solve the homography matrix of each projector. Lastly the brightness inconsistency of the multi-channel projection overlap area is seriously interfered, it leads to the corrected image doesn’t fit well with the observer's visual needs, and we obtain the projection display image of visual consistency by using the luminance fusion correction algorithm. The experimental results show that this method not only effectively solved the problem of distortion of multi-projection screen and the issue of luminance interference in overlapping region, but also improved the calibration efficient of multi-channel projective system and reduced the maintenance cost of intelligent multi-projection system.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fan Yang, Fan Yang, Cheng Han, Cheng Han, Baoxing Bai, Baoxing Bai, Chao Zhang, Chao Zhang, Yunxiu Zhao, Yunxiu Zhao, } "The research on multi-projection correction based on color coding grid array", Proc. SPIE 10459, AOPC 2017: Optical Storage and Display Technology, 104590F (24 October 2017); doi: 10.1117/12.2284359; https://doi.org/10.1117/12.2284359
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