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Method and device of video abstraction generation

A technology of video summary and frequency, applied in the field of image processing, can solve the problems of interference, distract the attention of public security organs, and interfere with video browsing by irrelevant targets, and achieve the effect of improving speed, making it easier to observe, and reducing the amount of calculation.

Inactive Publication Date: 2013-05-08
TELEFRAME TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many cases, the public security organs only pay attention to one of the multiple extracted targets, and the appearance of other targets will distract the attention of the staff of the public security organs and cause interference.
[0004] To sum up, the video enrichment technology in the prior art has the technical problem of irrelevant objects interfering with video browsing

Method used

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  • Method and device of video abstraction generation
  • Method and device of video abstraction generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1 of the present invention provides a video summary generation method, see figure 1 shown, including steps:

[0054] In step S110, the location information of the intended area designated by the user is acquired, and the intended area is determined.

[0055] The area of ​​interest, that is, the area of ​​interest to the user. For a specific video, the user may only care about moving objects that pass through a certain area or cross a certain line, so first set the area of ​​​​interest, and when doing target detection and tracking , only care about the passing objects in the region of interest.

[0056] The intended area can be any polygon, or a line, or a closed area determined by several straight lines.

[0057] Preferably, in this embodiment, when the user specifies a straight line, the rectangular area with the line as the axis of symmetry is used as the intended area; The area is used as the intended area; when the user specifies a polygon or irregular...

Embodiment 2

[0066] Embodiment 2 of the present invention provides a video abstract generation method, see figure 2 shown, including steps:

[0067] Step S210: Obtain the location information of the intended area and / or excluded area specified by the user, and determine the intended area.

[0068] The user can also set an exclusion area, which is an area that the user does not care about. The exclusion area can be an area where leaves shake, or an area where no moving target can appear in some blind spots.

[0069] When there are still some areas that do not need to be processed in the intended area specified by the user, an exclusion area can be specified again in the specified intended area, thereby further reducing the amount of computation and increasing the computation speed.

[0070] Or, when the user does not know the range of the area where the target will appear, but only specifies where the target will not appear, then the intended area may not be specified, but the exclusion a...

Embodiment 3

[0124] Embodiment 3 of the present invention provides a device for generating a video summary, including a user interaction module, a foreground detection module, a tracking module and a generation module.

[0125] The user interaction module is used to obtain the location information of the intended area specified by the user, and determine the intended area; the foreground detection module is used to perform foreground detection on the image of the intended area; the tracking module is used to detect Track the target and extract the track of the target;

[0126] The generation module is used to superimpose each frame image of the target's motion trajectory on the corresponding background to generate a video summary.

[0127] Wherein, the foreground detection module is used to perform background modeling on the image by using a mixture of Gaussian functions to extract the moving foreground. Preferably, it also includes a lighting processing module and a shadow processing mod...

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Abstract

The invention provides a method of video abstraction generation. The method of the video abstraction generation comprises steps of acquiring position information of an intention area appointed by a user, and determining an intention area; conducting prospect detection to an image in the intention area; tracking a detected target, and abstracting a motion trail of the target; and respectively stacking each frame image of the motion trail of the target to a corresponding setting, and generating a video abstraction. The invention further provides a device of the video abstraction generation. The device of the video abstraction generation comprises a user interaction module, a prospect detection module, a tracking module and a generating module, wherein the user interaction module is used for acquiring the position information of the intention area of the user, the prospect detection module is used for conducting the prospect detection to the image of the intention area, the tracking module is used for tacking the detected target and abstracting the trail of the target, and the generating module is used for respectively stacking each frame image of the motion trail of the target to the corresponding setting and generating the video abstraction. The method and the device of the video abstraction generation improve the generating speed of the video abstraction effectively.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for generating a video summary. Background technique [0002] In the field of social public security, the video surveillance system has become an important part of maintaining social order and strengthening social management. However, video recording has the characteristics of a large amount of stored data and a long storage time. Looking for clues and obtaining evidence through video recording, and browsing related videos one by one according to the traditional method will consume a lot of manpower, material resources and time, and the efficiency is extremely low. The best time to solve the case. Therefore, in the video surveillance system, condensing the original video can quickly browse and lock the search object, which has important guiding significance for the police to speed up the speed of solving cases and improve the efficiency of so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/8549
Inventor 王海峰
Owner TELEFRAME TECH BEIJING
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