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Quick splicing method and system of infrared images

A fast stitching, infrared image technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problem of not meeting the needs of robot visual navigation, and achieve the effect of improving stitching speed and stitching accuracy.

Inactive Publication Date: 2018-03-23
YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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Problems solved by technology

[0005] In the micro tracked mobile robot project, monocular vision cannot meet the visual navigation needs of the robot, and the field of view of the monocular vision robot is significantly smaller than that of the binocular vision robot

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  • Quick splicing method and system of infrared images
  • Quick splicing method and system of infrared images
  • Quick splicing method and system of infrared images

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Embodiment Construction

[0048] 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.

[0049] Such as figure 1 As shown, the present invention discloses a method for fast splicing of infrared images, the method comprising the following steps:

[0050] S1. Obtain n images of a scene, and there is a partial overlap between every two adjacent images;

[0051] S2. Use the SIFT algorithm to perform feature point detection and initial matching of feature points on the image. When matching feature points, Manhattan distance is used as a similarity measure;

[0052]S3. Remove mismatching, use RANSAC algorithm to eliminate outliers and estimate model stability. In RANSAC algorithm, match po...

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Abstract

The invention discloses a quick splicing method and system of infrared images. The method comprises steps of acquiring n images of a scene, wherein every adjacent two images are partially overlapped;using the SIFT algorithm to carry out characteristic point detection and characteristic point pre-matching on the images, and using a Manhattan distance as the similarity measurement during characteristic point matching; removing error matching, using the RANSAC algorithm to remove outer points, estimating model stability, and arranging the matching point pairs with the high reliability to be thefront line in the RANSAC algorithm; carrying out cylindrical projection on the images, projecting each pixel point of each picture to the same coordinate system, and using the linear weighting methodto carry out image fusion on the matched pictures so as to acquire a panoramic image of the whole scene. The system corresponds to the method. According to the invention, by improving the classic SIFTalgorithm and the RANSAC algorithm, under the condition that the splicing effects are not influenced, the splicing speed is increased and the splicing precision is quite high.

Description

technical field [0001] The invention belongs to the technical field of infrared image processing, and in particular relates to a method and system for fast stitching of infrared images. Background technique [0002] Image stitching is an increasingly popular research field, which has become a hot topic in photogrammetry, computer vision, image processing and computer graphics research. Image stitching refers to aligning a series of spatially overlapping images to form a seamless, high-definition image, so that the stitched image has higher resolution and a larger field of view than a single image. [0003] The motion-based panoramic image stitching model was proposed by Richard Szeliski in 1996. It uses the Levenberg-Marquardt iterative nonlinear minimization method to perform image registration by finding the geometric transformation relationship between images. Because this method has better results and faster convergence speed It is fast, and can process images to be sti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06K9/46G06K9/62
CPCG06T3/4038G06T2207/10048G06T2207/20221G06V10/462G06F18/22
Inventor 唐华文李进孔令袁峻李黎王天安李霁寅胡昌斌张萌刘建宏
Owner YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU
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