High dynamic range scene generation method, device and system

A high dynamic range and scene technology, applied in the field of image processing, can solve the mutual constraints between frame rate and dynamic range, and achieve the effect of solving the mutual constraints between frame rate and dynamic range and expanding the dynamic range

Active Publication Date: 2020-04-03
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0013] The embodiment of the present application provides a high dynamic range scene generation method, device and system, to at least solve the technical problem of mutual constraints between frame rate and dynamic range in the existing DMD-based technology for expanding the dynamic range of generated scenes

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  • High dynamic range scene generation method, device and system
  • High dynamic range scene generation method, device and system

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0031] It should be noted that the terms "first" and "second" in the specification and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such ...

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Abstract

The present application discloses a high dynamic range scene generation method, device and system. Wherein, the method includes: decomposing the N-bit grayscale image of the scene to be generated, to obtain N / 2 2-bit bit-plane images; based on the gray value of each pixel in each 2-bit bit-plane image, Perform frame decomposition processing on each 2-bit plane image to obtain 3 black and white images; according to the corresponding video signals of the three black and white images, the first lighting device, the second The incident light of the illuminating device and the third illuminating device is subjected to spatial light modulation, that is, three black and white images corresponding to each 2-bit plane image are displayed simultaneously, and each 2-bit plane image is generated by projection by superimposing the three black and white images; According to the timing of pulse width modulation, all 2-bit plane images are continuously projected by the above three DMDs to generate grayscale images of the scene to be generated. The present application solves the problem of frame rate and dynamic range constraints.

Description

technical field [0001] The present application relates to the field of image processing, in particular, to a method, device and system for generating high dynamic range scenes. Background technique [0002] High dynamic range scene generation has always been a research focus in hardware-in-the-loop simulation projection systems. According to the display band of the generated scene, it can be divided into two categories: infrared scene generation and visible light scene generation. Infrared scene generation is mainly used for hardware-in-the-loop simulation tests of infrared imaging guided missiles, such as infrared target simulators. Visible light scene generation is mainly used to simulate the deep space environment to test the performance of space imaging systems, such as star simulators. At present, visible light scene generation devices mainly include Digital Micromirror Device (DMD) and Liquid Crystal on Silicon (LCoS). Both technologies can be used for infrared scene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/31
CPCH04N9/3102H04N9/3138H04N9/3141H04N9/3179
Inventor 潘越乔杨徐熙平
Owner CHANGCHUN UNIV OF SCI & TECH
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