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A linear ccd two-dimensional variable-speed imaging method based on image segmentation

An imaging method and image segmentation technology, applied in image analysis, image data processing, instruments, etc., can solve problems such as confusion, non-uniform scanning speed, and inaccurate image information, so as to simplify motion control, increase scanning speed, and improve The effect of scanning efficiency

Active Publication Date: 2021-01-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual linear CCD two-dimensional dynamic scanning process, due to reasons such as motion control accuracy, the scanning speed may not be uniform. In this case, the image of the imaging result is mixed due to the scanning speed and scanning frequency Irregular distortion caused by mismatch, resulting in inaccurate image information

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  • A linear ccd two-dimensional variable-speed imaging method based on image segmentation
  • A linear ccd two-dimensional variable-speed imaging method based on image segmentation
  • A linear ccd two-dimensional variable-speed imaging method based on image segmentation

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Embodiment

[0062] figure 1 It is a principle diagram of the linear CCD two-dimensional variable-speed imaging based on image segmentation in the present invention.

[0063] In this example, if figure 1 As shown, the system mainly includes a preliminary imaging module 1 , an image compensation and correction module 2 , and an image reconstruction module 3 .

[0064] Among them, the linear CCD used in the preliminary imaging module 1 is a 12KHz RAL8192-12GM line scan camera as an example. The highest scanning frequency of the camera is 12KHZ (12000 lines of image acquisition per second), the standard scanning speed is 7.7mm / s at 12KHZ, and the number of pixels in each line is 8192. In addition, the application of other types of linear CCDs is naturally included in the protection scope of the present invention.

[0065] figure 2 It is a flow chart of the linear CCD two-dimensional variable-speed imaging method based on image segmentation in the present invention.

[0066] In this exam...

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Abstract

The invention discloses a linear CCD two-dimensional variable-speed imaging method based on image segmentation. The linear CCD performs preliminary scanning and imaging on a scanned object, and uses a motion sensor to record the scanning speed during the scanning and imaging process. Then, with the scanning speed as the basic parameter, the method based on adaptive interval segmentation is used to compensate and correct the uneven and distorted image obtained by scanning imaging under variable speed motion, and finally obtain a more accurate two-dimensional image under variable speed scanning, so that the The application range of linear CCD two-dimensional scanning extends to the field of two-dimensional variable-speed scanning imaging.

Description

technical field [0001] The invention belongs to the technical field of linear CCD two-dimensional dynamic imaging, and more specifically relates to a linear CCD two-dimensional variable-speed imaging method based on image segmentation. Background technique [0002] Linear CCD (Charge-coupled Device, full name: charge-coupled device, also known as CCD image sensor) two-dimensional dynamic imaging is currently a hot field of linear CCD application technology research. Due to the characteristics of line-by-line imaging in the linear CCD imaging process, the linear CCD imaging results are easily affected by the scanning motion during the scanning imaging process. In the linear CCD two-dimensional imaging process, the scanning frequency is the number of lines exposed per second, and the scanning speed is the relative speed relationship between the linear CCD and the scanned object. The relationship between the scanning frequency and the scanning speed determines the scanning imag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/24G01B11/00G06T7/11G06F17/16
CPCG01B11/002G01B11/24G06F17/16G06T7/11
Inventor 彭超梁明尧邹见效徐红兵
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA