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An Image Mosaic Method Based on Feature Point Calibration and Matching

A feature point calibration, image stitching technology, applied in image enhancement, image data processing, instruments and other directions, can solve problems such as large amount of calculation, and achieve the effect of reducing the amount of calculation

Inactive Publication Date: 2017-06-13
中国兵器工业第二〇二研究所
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Problems solved by technology

[0011] The traditional image stitching algorithm has wide versatility and can complete the automatic stitching of two dynamic images, but it has the disadvantage of a large amount of calculation

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  • An Image Mosaic Method Based on Feature Point Calibration and Matching
  • An Image Mosaic Method Based on Feature Point Calibration and Matching
  • An Image Mosaic Method Based on Feature Point Calibration and Matching

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0029] The present invention provides an image mosaic method for manual calibration and matching of feature points. For video images collected by two cameras with relatively fixed positions, this method can realize effective and rapid mosaic of more than two video images. The specific steps are as follows:

[0030] Step 1: Fix the positional relationship of the two cameras so that the captured video image is approximately horizontal (the angle is controlled within ±20°), and the horizontal direction has an overlapping area of ​​more than 30%; at the same time, it is required to have more than 4 overlapping areas, and the space Scattered and easily identifiable feature points are distributed to ensure the extractability of feature points and the stability of projection transf...

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Abstract

The invention provides a feature point calibrating and matching image splicing method. A basis reference image and an observation rectification image which are overlapped by 30 percent are shot, four feature points are arranged in the overlapped area of the basis reference image, four corresponding feature points are found in the observation rectification image, projection transformation is carried out on the observation rectification image, seamless video image splicing based on gradual appearing and disappearing is carried out, a spliced image is obtained, and if there is a double image and a gap in the spliced image, feature points are adjusted, and splicing is carried out again. According to the feature point calibrating and matching image splicing method, image feature point detecting and feature matching calculating can be omitted, and the calculated amount of the image splicing algorithm is reduced.

Description

technical field [0001] The invention belongs to the technical field of image splicing. Background technique [0002] Image mosaic technology is an important research field of digital image processing, which is to spatially register multiple image sequences with overlapping parts, and form a picture that contains the information of each image sequence, wide-angle scene, complete and The essence of the high-definition new image is to repeat the process of region registration and image fusion of the stitched image. In image mosaic technology, based on feature point extraction is a relatively effective conventional method. The method follows the steps as follows: first extract the feature points of the two images to be stitched, then pair the feature points in the two images, and finally solve the projection transformation matrix and the registration image matrix transformation, and finally complete the stitching of the two images in the same space. [0003] Feature point dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50
Inventor 赵凯耿修堂石德乾杨维
Owner 中国兵器工业第二〇二研究所
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