Method and device for displaying target 3D information in 2D video
A video and video technology, applied in the field of video identification, can solve the problems of poor display effect and users' inability to easily distinguish 3D information, and achieve the effect of less confusion and good display effect
Active Publication Date: 2018-09-07
HANGZHOU HIKVISION DIGITAL TECH
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However, when there are multiple targets in the video and the distance between the targets is relatively close or even the target images overlap, multiple line segments representing the 3D information of each target will touch and overlap, making the display effect of the 3D information of the target poor. Users cannot easily distinguish the 3D information of each target
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[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0059] like figure 2 As shown, the embodiment of the present invention provides a method for displaying target 3D information in a 2D video, which may include:
[0060] S100. Determine the highest point and the lowest point of the image of the current target in the 2D video, and determine the width of the image of the current target in the 2D video;
[0061] Wherein, the current target may be a person, or other objects, such as animals, objects (such as cars...
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Embodiments of the invention provide a method and a device for displaying 3D information in 2D video. The method comprises steps that the highest point and the lowest point of an image of a current object in the 2D video are determined, and the width of the image of the current object in the 2D video is determined; the highest point is taken as the center of circle of a first ellipse, the lowest point is taken as the center of circle of a second ellipse, and the width is taken as the length of the long axes of the first ellipse and the second ellipse; a first included angle between a line from video collection equipment which generates the 2D video to the highest point and a horizontal surface is determined, and the length of a short axis of the first ellipse is determined according to the first included angle and the width; a second included angle between a line from the video collection equipment which generates the 2D video to the lowest point and the horizontal surface is determined, and the length of a short axis of the second ellipse is determined according to the second included angle and the width; and a cylindrical frame matched with the object and the frame drawing position are determined and drawing is carried out. As ling segments of the cylindrical frame are a few, the possibility of confusion generated by approaching is small, and the 3D information display effect of the object is good.
Description
technical field [0001] The invention relates to the technical field of video identification, in particular to a method and device for displaying target 3D information in 2D video. Background technique [0002] Video surveillance technology is widely used in many fields such as security protection. In order to facilitate tracking and identification, existing video surveillance technology adds 3D information to 2D video. [0003] like figure 1 As shown, the 3D information added in the prior art is a cube frame, and each cube frame is composed of 12 line segments to represent the 3D information of the target. However, when there are multiple targets in the video and the distance between the targets is relatively close or even the target images overlap, multiple line segments representing the 3D information of each target will touch and overlap, making the display effect of the 3D information of the target poor. Users cannot easily distinguish the 3D information of each objec...
Claims
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IPC IPC(8): H04N13/122
Inventor 浦世亮孙杰韩杰茜郭斌王全占
Owner HANGZHOU HIKVISION DIGITAL TECH