A Method for Improving Image Quality of Color Computational Holography Reconstruction Based on Viewing Area Characteristics
A technology for calculating holography and reconstructing images, applied in the direction of instruments, etc., can solve the problems of chromatic aberration, hologram taking a long time, affecting the quality of reproduced images, etc., to achieve the effect of eliminating chromatic aberration, improving speed, and reducing interference
Active Publication Date: 2020-04-10
BEIJING FANMI TECH CO LTD
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In addition, the high-order diffraction image caused by the pixel structure of the spatial light modulator will also affect the quality of the reproduced image and produce the corresponding chromatic aberration
In computational holographic reconstruction, the ideal complete reconstructed image can only be displayed in a specific area, and the calculation of high-order diffraction images and other wasteful information not only consumes a lot of time when generating a hologram, but also brings chromatic aberration
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[0027] The following describes in detail an embodiment of a method for improving image quality of color computational holographic reconstruction based on viewing zone characteristics proposed by the present invention, so as to further describe the present invention. It is necessary to point out that the following examples are only used for further description of the present invention, and cannot be interpreted as limiting the protection scope of the present invention. Those skilled in the art make some non-essential improvements and improvements to the present invention according to the above-mentioned content of the invention. Adjustment still belongs to the protection scope of the present invention.
[0028] In this embodiment, the method for improving the image quality of color computing holographic reproduction based on the viewing area characteristics is image 3 The system shown in the figure is realized, which includes one red, green and blue laser, three beam expanders...
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The present invention provides a method for improving quality of a color computer-generated holographic reconstructed image based on characteristics of a visual area. The method comprises steps of extracting red, green and blue scene information of a 3D object and calculating the effective visual area of the reconstructed image based on the red, green and blue scene information, then calculating the effective visual area of the 3D object by analysis of effective visual area characteristics on information of three components including red, green and blue, thus producing an effective interferogram, finally generating a Fresnel hologram from interferograms of three components including red, green and blue, and loading the generated hologram on a spatial light modulator for reconstruction, thereby achieving improvement of quality of the color computer-generated holographic reconstructed image.
Description
[0001] 1. Technical field [0002] The invention belongs to the field of computational holographic display, and in particular, the invention relates to a method for improving image quality of color computational holographic reproduction based on viewing area characteristics. [0003] 2. Background technology [0004] As a true 3D display technology, computational holographic display can reconstruct the entire light field information of a 3D scene. With the improvement of people's visual requirements for three-dimensional imaging, the image quality of color holographic reconstruction has become one of the focuses of people's attention. The traditional method is to use time-division multiplexing or space-division multiplexing for color computational holographic reproduction, which has problems such as complex design process, poor applicability, and color difference. Nowadays, people are urgently looking for a simple and easy high-quality color computational holographic reconstru...
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IPC IPC(8): G03H1/22G03H1/26
CPCG03H1/2294G03H1/2645
Inventor 王迪王琼华刘超
Owner BEIJING FANMI TECH CO LTD