A method for improving resolution through dmd mosaic
A technology of resolution and image segmentation, applied in optical components, optics, instruments, etc., can solve the problem of waiting for a long time for DMD resolution, and achieve the effect of high resolution, promotion of development, and huge economic benefits
Active Publication Date: 2018-09-07
HARBIN INST OF TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for improving the resolution achieved by DMD splicing, in order to solve the problem that if the target accuracy of the simulation is greater than the resolution limit that the DMD can provide at the moment, there will be problems in the resolution of the DMD through the improvement of the processing technology. It takes a long time to wait for the increase of the rate
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specific Embodiment approach 1
[0013] Specific implementation mode one: combine figure 1 Shown, illustrate the technical scheme of this embodiment, its method step is:
[0014] Step 1, the image of 4k * 4k is divided into two parts of 4k * 2k and 4k * 2k by the method of image segmentation on the computer;
[0015] Step 2. Place the DMD1 chip on the sliding guide rail on the bottom fixed platform of the double-layer fixed platform 1, and place the DMD2 chip on the upper fixed platform of the double-layer fixed platform 1; the double-layer fixed platform 1 is mounted on the mobile platform at the precise position above, so that the precise position mobile platform can drive the DMD1 chip to do precise parallel displacement relative to the bottom fixed platform table of the double-layer fixed platform 1;
[0016] Step 3. The two parts of image signals in the computer are synchronously sent to the DMD control chip after being triggered by a synchronous trigger output signal. After the DMD control chip process...
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The invention discloses a resolution enhancement method realized through DMD splicing, which belongs to the technical field of DMD resolution enhancement. The method comprises steps: 1, a 4k*4k image is segmented into a 4k*2k part and a 4k*2k part on a computer in an image segmentation method; 2, a DMD1 chip is placed on a sliding guide rail of a bottom fixing table of a dual-layer fixing table, and a DMD2 chip is fixedly placed on an upper fixing table of the dual-layer fixing table; 3, a DMD control chip processes signals of the above two image parts, and the above two 4k*2k images are simultaneously transmitted to the DMD1 chip and the DMD2 chip respectively; and 4, DMD1 chip pixel imaging and DMD2 chip pixel imaging are carried out via a high-resolution CCD camera, the DMD1 chip is driven to perform precise and parallel displacement in relative to the bottom fixing table surface of the dual-layer fixing table via a precise position moving platform, and thus the distance between a DMD1 chip edge pixel and a DMD2 chip edge pixel reaches a nominal value. Two DMD chip images can be seamlessly spliced, and the resolution of the DMD chip can be greatly improved.
Description
technical field [0001] The invention belongs to the technical field of improving DMD resolution. Background technique [0002] The development of modern science and technology has higher requirements for optical information processing methods. The original various modulators can no longer meet the requirements, and sensors capable of real-time two-dimensional input and output have emerged as the times require, which is the spatial light modulator. [0003] Digital micromirror device (DMD) is a new type of all-digital spatial light modulator, which uses a pin sputtering process to form a two-dimensional micromirror array on a semiconductor silicon wafer. Each microlens is equivalent to a pixel in the projection screen, and each microlens can be deflected freely. Different deflection angles of the microlens will present different states. Therefore, the reflection of light is controlled by the deflection angle of each microlens, thereby realizing real-time display of images. ...
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IPC IPC(8): G02B26/08
Inventor 任国焘陈守谦张旺周程灏党凡阳王惠解放左宝君范志刚张辉索恩祥苏天琪
Owner HARBIN INST OF TECH