Method for generating holograms
A hologram and holographic image technology, applied in the field of optical imaging, can solve problems such as unsatisfactory effects, and achieve the effect of improving image quality and reducing noise
Active Publication Date: 2012-07-04
JIANGSU INTELIGHT ELECTRONICS TECH
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Combined with the single-frame image phase refinement method described earlier, the effect can reach 1/N and 1/N of the single-frame image noise
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The invention provides a method for generating holograms. The method includes a), realizing phase distribution computation for a target image to obtain first amplitude phase distribution; b), realizing holographic transformation based on the first amplitude phase distribution to obtain a first hologram; c), determining second amplitude phase distribution based on aberration between the target image and a first restored image and the first amplitude phase distribution; and d), realizing holographic transformation based on the second amplitude phase distribution to obtain a second hologram, wherein the first restored image can be obtained from the first hologram by the aid of the diffraction effect. The method provides a brand-new way for computing the holograms and correcting aberration, and noise in results can be greatly reduced by an intensity compensation method.
Description
technical field [0001] The invention relates to the field of optical imaging, in particular to a novel method for generating holograms. Background technique [0002] Holograms and holographic projections have broad application prospects in our daily life and work production. It can be used in image display, correlator for object recognition, communication, lithography and other fields. Especially in the field of display, holographic projection technology has outstanding advantages. For example, its utilization efficiency of incident light energy is much higher than that of existing technologies, and it is fundamentally guaranteed that the generated image will never have dead pixels. The development of modern electronic light modulation chips such as optical engine (Liquid Crystal on Silicon), digital micromirror (Digital Micromirror Device) and other equipment has undoubtedly laid the foundation for its large-scale application. But one of the big problems plaguing computer...
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Login to view more IPC IPC(8): G06T11/00G06T5/00
CPCG03H2001/0816G03H2001/0825G03H1/0808
Inventor 谈顺毅
Owner JIANGSU INTELIGHT ELECTRONICS TECH
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