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Panoramic Imaging Method for Moving Target

A moving target and panoramic imaging technology, applied in the field of panoramic imaging of moving targets, can solve the problems of high similarity, low matching success rate, and low texture, etc., and achieve the effect of high algorithm success rate and low time complexity.

Active Publication Date: 2020-09-15
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

However, the train body is smooth, has few textures, and the similarity of each part is very large. These characteristics make the matching success rate based on local feature points not high

Method used

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  • Panoramic Imaging Method for Moving Target
  • Panoramic Imaging Method for Moving Target
  • Panoramic Imaging Method for Moving Target

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Embodiment Construction

[0031] The invention provides a panoramic imaging method of a moving object, and the moving object includes a moving train, a moving car or other moving objects. The collection device includes a camera, video camera or other devices that can take pictures and video. In the present invention, the acquisition device collects the continuous video sequence of the moving object including its various partial information, seamlessly stitches out a high-definition panoramic image including the overall information of the moving object, and achieves a higher success rate of image stitching at the same time, improving the Algorithm performance.

[0032] And because the time intervals between adjacent frames are consistent and very short, the moving speed of the moving object can be approximated as the displacement of the moving object.

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described...

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Abstract

The invention provides a motion target panorama imaging method. High definition videos of a motion target are acquired, the image splicing technology is utilized to generate high definition panorama images of the motion target. The method mainly comprises steps of characteristic point extraction, characteristic point optical flow calculation and analysis, foreground frame and background frame separation and image fusion. The method is advantaged in that a problem that panorama imaging and high definition imaging functions for narrow and long motion targets, e.g., trains are difficult to realize both is solved, through acquiring a high definition video sequence at one side of a motion train, the high definition panorama image of the train body can be realized through the splicing method, and basic conditions are provided for later vision-based train model analysis, train number identification and speed measurement.

Description

technical field [0001] The invention relates to the technical field of image splicing, in particular to a panoramic imaging method of a moving target. Background technique [0002] Using computer vision technology to measure the running speed of trains and identify train models and car numbers provides great convenience for railway traffic management. The premise of these technologies is to obtain high-definition panoramic images of the train body. When imaging a moving train target, due to the large size and narrow shape of the target (the length of the train body is usually a hundred times the height), and the limited imaging field of view of ordinary cameras, it is difficult to obtain high-definition panoramic information of the target at one time. Therefore, if it is possible to collect continuous high-definition video sequences including train parts, and then use image stitching technology to restore the high-definition panorama of the target, it can provide a very eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T3/40G06T5/50G06T7/269
CPCG06T3/4038G06T5/50G06T2207/10016G06T2207/20221
Inventor 胡锦高王彦情张吉祥杨一平刘子坤
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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