Video-based panoramic image change detection method
A panoramic image and change detection technology, applied in image analysis, image data processing, graphics and image conversion, etc., can solve the problems of high law enforcement costs, lack of legal links, high monitoring costs, etc., to improve accuracy and reliability, improve sticky effect
Pending Publication Date: 2020-07-03
珀乐(北京)信息科技有限公司
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At present, "the cost of illegality is low, and the cost of law enforcement is high" is one of the main reasons why illegal buildings are repeatedly prohibited. In addition to the lack of relevant legal links, the detection of illegal buildings is also relatively weak. Due to the lack of automated monitoring methods for illegal buildings , the use of manual inspection has many disadvantages, one is that the discovery process cycle is longer, and the other is that the cost of large-scale monitoring is high
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[0055] 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 combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0056] The present invention provides a flow chart of change detection based on panoramic images, see figure 1 , including the following steps:
[0057] S100 continuously changes the camera angle of view, shoots video data covering the area to be detected, uses the frame extraction method to obtain continuous images, and stitches them to form a panoramic image of the area to be detected;
[0058] figure 2 It is a flow c...
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The invention relates to a video-based panoramic image change detection method, which comprises the following steps: continuously changing the visual angle of a camera, shooting video data covering ato-be-detected area, acquiring continuous images by adopting a frame extraction method, and splicing to form a panoramic image of the to-be-detected area; taking the panoramic image as base image data, shooting video data of a to-be-detected area, obtaining a real-time image of the to-be-detected area by a frame extraction method, registering the real-time image with the panoramic image, and positioning a corresponding area of the real-time image on the panoramic image; and comparing corresponding areas on the real-time image and the panoramic image, and judging whether a change area exists ornot. The method is high in automation degree, steady and reliable, can be used for continuous long-time monitoring of typical areas, and can be applied to the fields of illegal building monitoring, urban dynamic monitoring and the like.
Description
technical field [0001] The invention relates to the field of image change detection, in particular to a method for detecting changes of panoramic images based on video. Background technique [0002] Image change detection technology is widely used in the fields of illegal building monitoring, urban dynamic monitoring and geographic information update. Take the detection of urban illegal buildings as an example. The number and scale of illegal buildings are also increasing. This phenomenon not only destroys urban planning and urban landscape, but also affects the image of the city and the lives of residents. It has become one of the negative factors affecting social harmony. At present, "the cost of illegality is low, and the cost of law enforcement is high" is one of the main reasons why illegal buildings are repeatedly prohibited. In addition to the lack of relevant legal links, the detection of illegal buildings is also relatively weak. Due to the lack of automated monitor...
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IPC IPC(8): G06T7/00G06T7/33G06T3/40G06K9/46
CPCG06T7/0002G06T7/33G06T3/4038G06V10/50G06V10/462
Inventor 郑世强陈前
Owner 珀乐(北京)信息科技有限公司