CCD original image processing method

A processing method and original image technology, applied in image data processing, image enhancement, image analysis, etc., can solve problems such as inability to solve image problems systematically, insufficient system, poor processing, etc.

Inactive Publication Date: 2015-08-19
NORTHWEST UNIV(CN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing technical methods are often designed for a certain defect, which is not systematic enough to systematically solve the problems existing in the image for use in actual production; Some links, such as image cleaning, are not handled very well

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Embodiment Construction

[0078] The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0079] Such as figure 1 The processing method of a CCD original image shown mainly includes three aspects of misalignment correction, radiation correction and geometric correction:

[0080] 1) Collect the original CCD data and read it into the computer through CD-ROM;

[0081] 2) Collect the original CCD ground uniform scene data and read it into the computer through CD-ROM;

[0082] 3) Collect the calibration data of the CCD laboratory and read it into the computer through CD-ROM;

[0083] 4) Collect the original CCD onboard calibration data and read it into the computer through CD-ROM;

[0084] 5) Use the file opening function of the CCD preprocessing system to read in the ground uniform scene image and the spa...

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Abstract

The invention discloses a CCD original image processing method. The method comprises the following steps: collecting original CCD data; collecting original CCD ground uniform scene data; collecting CCD laboratory calibration data; collecting original CCD spaceborne calibration data; respectively reading ground uniform scene images and spaceborne calibration images, and respectively calculating a uniform scene of each waveband and a relative calibration coefficient of spaceborne calibration; indicating a storage directory of laboratory calibration data for a CCD preprocessing system, and calculating the gain value and the deviation value of each waveband and each detection unit; reading CCD original data to be processed and displaying images on a screen; observing the characteristics of input data, and selecting a data cleansing function needing to be executed; performing radiation correction on the images to obtain images of primary products; and performing geometric correction of the images, outputting results, storing files, and obtaining image illustrating files of secondary products for storing to the directory of images to be processed. Compared to the prior art, the method provided by the invention enables the image processing level to be obviously improved.

Description

technical field [0001] The present invention relates, in particular, to a processing method for CCD original images. Background technique [0002] Remote sensing is to carry out ground feature identification and special research through the processing, analysis and interpretation of gray level information reflecting the level of electromagnetic wave radiation of ground features. Due to the influence of various factors in the process of remote sensing imaging (such as satellite speed changes, the interaction between the atmosphere and ground objects reflecting and emitting electromagnetic waves, random noise, etc.), the actual gray value of the image is not entirely the size of the electromagnetic wave energy radiated by the ground objects. The reflection of the above factors also includes the results of the above factors, so before the remote sensing image processing, it is necessary to perform correction processing (image restoration processing) to eliminate the influence o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/00
CPCG06T7/80G06T2207/10032G06T2207/20172G06T5/80
Inventor 周小虎赵栋
Owner NORTHWEST UNIV(CN)
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