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Method and system for correcting and jointing tilted scanning and imaging data of linear array tower

A technology of oblique scanning and imaging data, which is applied in image data processing, image enhancement, image analysis, etc., and can solve the problem of high image cost

Inactive Publication Date: 2013-10-09
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a relatively economical method and system for correcting and splicing imaging data of linear array high-tower oblique scanning in view of the defect of high cost of obtaining images of line array scanning imagers in the prior art

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  • Method and system for correcting and jointing tilted scanning and imaging data of linear array tower
  • Method and system for correcting and jointing tilted scanning and imaging data of linear array tower

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[0060] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0061] In the present invention, a linear array scanner is placed on a high tower to perform oblique scanning and imaging, and then the scanned images are subjected to geometric correction, image registration and image splicing, thereby realizing the splicing of multiple images in multiple fields of view. The implementation of the invention solves the problems of geometric distortion correction and multi-field image splicing of tower-borne multi-spectral imaging data, and the method is fast and practical.

[0062] figure 1Describes the inclined imaging method of the line array scanner in the high ...

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Abstract

The invention discloses a method and a system for correcting and jointing tilted scanning and imaging data of a linear array tower. The method comprises the following steps of: arranging a linear array scanner on the tower for performing multi-angle tilted scanning and imaging, thus obtaining a plurality of single-scene images; performing geometric distortion correction without controlling points for the plurality of single-scene images according to a geometrical relationship between an imaging area and the scanner during tilted imaging; extracting homonymy controlling points in the corrected single-scene images; performing image registration according to the extracted homonymy controlling points; and jointing the registered images under a custom coordinate system. By virtue of the method and the system for correcting and jointing tilted scanning and imaging data of the linear array tower, the problems of geometric distortion correction carrying multispectral imaging data and jointing of multi-field images can be solved; the implementation method is quick and practical.

Description

technical field [0001] The invention relates to the field of remote sensing digital image processing, in particular to a method and system for correcting and splicing imaging data of linear array high tower tilt scans. Background technique [0002] At present, the line array remote sensing imager is a general-purpose remote sensing device. The acquisition of imaging data requires a certain platform (aerial or aerospace equipment) for vertical photogrammetry, but the operating cost of the aerospace operating platform is relatively high, and the oblique imaging of the ground tower becomes a choice. [0003] In the imaging process of the high tower on the ground, it is necessary to push and sweep forward and backward in the oblique direction to obtain a single image data when the horizontal direction of the equipment is fixed, and to perform multiple imaging after the equipment is rotated in the horizontal direction to realize the imaging of a large field of view. Large geomet...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T5/50G06T3/40
Inventor 田玉刚张长兴杨贵廖小露
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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