A method and device for obtaining the search step size of a candidate frame
A technology of search step size and candidate frame, which is applied in the field of acquisition of candidate frame search step size, can solve problems such as missed detection and search results are not globally optimal, achieve high detection rate and improve detection effect
Active Publication Date: 2020-07-31
CHONGQING UNIV
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[0004] According to the existing target search method, in the process of searching for the target, the candidate frame is stepped by a fixed length in the entire scanning window, and the search may appear in a fixed-length step in an area with a different number of search targets. Missed detection, the search result is not globally optimal
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[0026] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0027] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.
[0029] It should be understood that the term "an...
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The invention discloses a method for obtaining a candidate frame search step, which relates to the field of target detection in computer vision and pattern recognition, and can determine the search step size of a target candidate frame in a video to be detected by establishing a Poisson distribution model. The method includes acquiring an image to be searched; acquiring image information of each original partition in the image to be searched and a Poisson distribution function corresponding to each original partition; determining each original partition according to the image information and Poisson distribution function of each original partition The partition type of the partition; according to the partition type, determine the candidate box search step size in each original partition. The technical solutions provided by the embodiments of the present invention can be applied to target detection processes such as pedestrian detection and vehicle detection in scenes including static surveillance video and vehicle-mounted surveillance video.
Description
【Technical field】 [0001] The invention relates to the field of target detection in computer vision and pattern recognition, in particular to a method and device for acquiring the search step size of a candidate frame. 【Background technique】 [0002] With the rapid development and wide application of computer image processing technology, the demand for object detection technology is gradually increasing. Object detection has become a basic problem in the fields of computer vision and pattern recognition, and the determination of the search step size of candidate frames for object detection is an important preliminary work for object recognition and classification. Currently, existing methods for generating target candidate frames generally use a sliding window search method. When the sliding window search method performs target search, the candidate frames are stepped by a fixed length in the entire scanning window. [0003] In the course of realizing the present invention, ...
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IPC IPC(8): G06K9/00
CPCG06V20/41G06V10/94G06V2201/07
Inventor 覃剑肖婷王美华
Owner CHONGQING UNIV