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Crime scene reduction method based on video map and augmented reality

An augmented reality and video technology, applied in the field of urban security management, can solve the problem of not being able to intuitively express the real effect and reflect the spatial relationship of objects, and achieve the effect of multi-angle observation, partial magnification, and intuitive and realistic reproduction.

Active Publication Date: 2015-02-04
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to overcome technical defects such as the fact that the existing crime scene restoration technology cannot intuitively express the real effect and reflect the spatial relationship between objects, and provides a crime scene restoration method based on video maps and augmented reality

Method used

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  • Crime scene reduction method based on video map and augmented reality
  • Crime scene reduction method based on video map and augmented reality

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Embodiment Construction

[0034] 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 conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0035] The idea of ​​the present invention is as follows: firstly establish an electronic map of the crime scene, project the video and video objects on the electronic map, perform precise registration through the control points, and perform angle transformation and vertical stretching of the monitoring video to make it have a three-dimensional display; Then, the positioning video is processed through the augmented reality module, and text information and operation buttons are added to visually display the behavior of the criminal target and the victim.

[0036] see figure 1 , is a fl...

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Abstract

The invention relates to the city safety management field and concretely discloses a crime scene reduction method based on video map and augmented reality, and the method comprises the steps as follows: based on the space position information, building the coordinate city video monitoring network to obtain the video including the position information, correlating the video monitoring device with the data server; when the video target appears, obtaining the geography coordinate value of the video target in different frames of the city video monitoring network for forming the movement track of the video target; projecting the video and the video target on the electric map for forming the three-dimensional city video map; according to the real scenes of the video and video target on the city video map, building the virtual object, fusing the virtual object with the real scenes of city video map; displaying the augmented reality information to the user, having interaction with the user and changing the enhanced information. The video map is fused with the augmented reality technology, so that the crime scene can be displayed intuitively and realistically for offering effective basis for investigation.

Description

technical field [0001] The invention relates to the technical field of urban security management, in particular to a method for restoring a crime scene based on video maps and augmented reality. Background technique [0002] Recreating the crime scene through technical means is of great significance in public security case handling, court evidence collection, and training and teaching. However, the methods currently adopted are usually through traditional photography, photography and drawing, which have certain limitations, such as the inability to intuitively express the spatial relationship between objects, the need to add a lot of text explanations, and the inability to reflect the real three-dimensional effect of the scene , unable to respond to interactive controls, powerless to reproduce simulated crimes combining characters and scenes, etc. [0003] In the existing technology, video data can be captured through video surveillance, and then through video mapping and c...

Claims

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Application Information

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IPC IPC(8): G06T17/05G06F3/01H04N7/18
CPCG06F3/011G06T19/20H04N7/181
Inventor 修文群
Owner SHENZHEN INST OF ADVANCED TECH
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