Abstract
In this paper, we analyzed the distribution of lateral chromatic aberration (LCA) and proposed a high-accuracy and flexible LCA correction method by using orthogonal fringe patterns displayed on a liquid crystal display (LCD) screen. In the proposed method, red, green, and blue orthogonal fringe patterns are consecutively displayed on the LCD screen. These fringe patterns are captured by a color camera from the front viewpoint for calculating the absolute phase maps. Then a pixel deviation matrix (PDM) of the LCA is determined by comparing the obtained phase maps of three channels. Finally, the LCA among the red, green, and blue channels of the color camera is corrected through the obtained PDM and the interpolation method in an application stage. Both simulated and real experiments verified the validity of the proposed method.
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