Method and device for detecting moving direction of target object
A technology of target object and movement direction, applied in the field of computer vision, can solve problems such as easy missed judgment or misjudgment, unable to judge the person to be detected, unable to detect all personnel, etc., to achieve the effect of improving accuracy
Active Publication Date: 2017-09-15
BEIJING KUANGSHI TECH CO LTD +1
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However, according to this detection method, when the motion trajectory of the person to be detected (i.e. the target object) is irregular, it is easy to miss or misjudge
On the other hand, when the commercial site is an irregular site, it may not be possible to simply determine whether the person to be detected has entered the commercial site by setting a straight line in a single image acquisition device
For example, assuming that a certain commercial place is located on the left and right sides of a crossroad, so turning left and right at the crossroads can enter the commercial place. At this time, it cannot be detected by presetting a straight line in a single image acquisition device. All persons entering and leaving the business premises
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[0018] In order to make the objects, technical solutions, and advantages of the present disclosure more apparent, exemplary embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited by the exemplary embodiments described here. Based on the embodiments described in the present disclosure, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present disclosure.
[0019] The following will refer to figure 1 The method for detecting the moving direction of the target object according to the embodiment of the present disclosure will be described in detail. figure 1 A flow chart of a method for detecting a moving di...
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Provided are a method and a device for detecting the moving direction of a target object. The method includes: acquiring a video sequence containing the target object, and determining the position of the target object in a plurality of image frames of the video sequence; setting a plurality of benchmarks within the coverage of an image acquisition device shooting the video sequence Vectors, wherein the angle between each reference vector and the reference vector set according to the specific scene of shooting satisfies a predetermined condition; for each of the reference vectors, the position of the target object in the plurality of image frames is determined The target object moves relative to the reference vector between each pair of adjacent image frames, and determines the target object relative to the reference vector according to the target object's motion direction relative to the reference vector between each pair of adjacent image frames The overall motion direction of the vector; according to the overall motion direction of the target object relative to each reference vector, determine the motion direction of the target object.
Description
technical field [0001] The present disclosure generally relates to the field of computer vision, and specifically relates to a method and device for detecting a moving direction of a target object. Background technique [0002] Passenger flow statistics based on the flow direction of people is of great significance to the understanding and adjustment of business strategies of shopping malls, supermarkets and other commercial places. At present, the method for detecting the flow direction of people is usually to install a single image acquisition device in the entrance area of a commercial place and pre-set a straight line in it, and then judge the flow direction of people according to whether and in which direction people cross the straight line. However, according to this detection method, when the motion trajectory of the person to be detected (ie, the target object) is irregular, it is easy to miss or misjudge. On the other hand, when the commercial place is an irregul...
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IPC IPC(8): G06T7/246G06T7/73
CPCG06T7/246G06T2207/10016G06T2207/30196G06T2207/30241
Inventor 林乐俞刚印奇
Owner BEIJING KUANGSHI TECH CO LTD