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A method and device for drawing a target object thermodynamic diagram

A target object and heat map technology, applied in the field of image recognition, can solve the problems of not considering character distortion, prone to misalignment, waste of labor costs, etc., and achieve the effect of improving drawing efficiency and accurate analysis

Inactive Publication Date: 2019-04-30
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of realizing the present invention, the inventors found that in the prior art, when analyzing and counting surveillance video, one is to directly conduct statistics based on the target objects in the video screen by manpower. This method wastes labor costs and is inefficient and easy Dislocation occurs, and the statistical results are not very accurate
One is to count the frequency of the optical flow. This method can solve the problem of large scenes, but it will not consider the distortion of characters caused by perspective, resulting in inaccurate analysis of surveillance video

Method used

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  • A method and device for drawing a target object thermodynamic diagram
  • A method and device for drawing a target object thermodynamic diagram
  • A method and device for drawing a target object thermodynamic diagram

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Embodiment Construction

[0051] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus their repeated descriptions will be omitted.

[0052] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the invention. However, those skilled in the art will appreciate that the technical solutions of the present invention may be practiced without one or more of the ...

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Abstract

The embodiment of the invention provides a method and a device for drawing a thermodynamic diagram of a target object. The method comprises the following steps: detecting the target object of a targetvideo in an initial frame of a period; acquiring a virtual position of each frame of the target object in the period; mapping the virtual position as an actual position; the thermodynamic diagram ofthe target object is drawn according to the actual position of each frame, the thermodynamic diagram can be automatically generated according to the target video, the thermodynamic diagram drawing efficiency and the accuracy of the thermodynamic diagram are improved, and then the target video is accurately analyzed based on the thermodynamic diagram.

Description

technical field [0001] The present invention relates to the field of image recognition and the field of computer technology, in particular to a method and device for drawing a thermal map of a target object. Background technique [0002] At present, many places are equipped with surveillance video, and the video surveillance system brings convenience to production. For example, in some relatively harsh environments, surveillance video can replace manpower for monitoring and control, and it will not cause physical defects such as visual fatigue. , to ensure production safety under normal circumstances. Video surveillance brings convenience to life. Video surveillance can ensure security issues. Installing the system in supermarkets can help you understand indoor conditions and customer behavior. [0003] In the process of realizing the present invention, the inventors found that in the prior art, when analyzing and counting surveillance videos, one is to directly conduct sta...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62H04N7/18
CPCH04N7/18G06V40/20G06V20/52G06F18/24
Inventor 叶韵陈宇武军晖翁志
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD