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Numeric field L-type pixel binning method

A digital domain, pixel technology, applied in the field of binning of L-shaped pixels in the digital domain, can solve the problems of only about 4 frames per second and high image data rate, and achieve high pixel resolution, good image quality, The effect of high image resolution

Inactive Publication Date: 2014-10-01
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The highest resolution of the full-frame area array CCD can reach 4k×5k, but the frame rate is only about 4 frames per second; when the resolution of the frame transfer type area array CCD is 1k×1k, the frame rate can reach 30 frames per second, therefore, The image data rate output by the area array CCD camera is very high

Method used

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  • Numeric field L-type pixel binning method
  • Numeric field L-type pixel binning method
  • Numeric field L-type pixel binning method

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Embodiment Construction

[0013] Invention idea of ​​the present invention is:

[0014] Since the pixel integral sampling process can be further understood as the continuous movement of a single pixel on the sampled target surface, the continuous output image information of the pixel is obtained. The MTF formula for rectangular pixel imaging is:

[0015] MTFpixels = 1 p ∫ p / 2 p / 2 h ( x ) e tkx dx = sin ( kp 2 ) kp 2 = sin c ( kp 2 ...

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Abstract

The invention relates to a numeric field L-type pixel binning method. The method comprises the steps that when an L-type pixel binning mode is selected, every three pixels are combined into one pixel to be output; according to the selection mode of the three pixels, one pixel is removed in original 2*2 binning modes, the three remaining pixels are combined into one pixel to be output, the pixel at the upper left position or the lower left position or the upper right position or the lower right position is removed, and the positions of the pixels removed in each binning mode are relatively consistent. According to the numeric field L-type pixel binning method, the L-type pixel is constructed in a numeric field for conducting binning mode sampling to achieve the higher pixel resolution capability.

Description

technical field [0001] The invention belongs to the technical fields of imaging electronics, computer vision and image processing, and in particular relates to a binning method for L-shaped pixels in a digital domain. Background technique [0002] Large area array CCDs have a wide range of application requirements in aerial photography, digital studios, medical biochemistry, national defense and military industries that require high resolution and high image quality. The working frame rate of area array CCD detector not only depends on the operating frequency of CCD charge transfer, but also is limited by the total number of pixels of CCD detector. Large area array CCD cannot meet some high frame rate applications. Generally, there are two ways to increase the frame rate: increase the CCD pixel clock or divide the CCD signal into multiple channels and output it simultaneously. Modern area array CCD cameras are developing in the direction of large field of view and high reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/378H04N5/374
Inventor 张叶
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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