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Video summary with depth information

A technology of in-depth information and video, applied in the field of indexing and retrieval, video analysis, can solve problems that are difficult to digest and cannot obtain generalization effects

Active Publication Date: 2013-07-03
HONG KONG APPLIED SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such compressed 2D moving images would crowd moving objects and be difficult for human visual comprehension
Other traditional video summarization techniques simply remove still frames from source video cutouts, which do not achieve optimal summarization

Method used

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  • Video summary with depth information
  • Video summary with depth information
  • Video summary with depth information

Examples

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Embodiment Construction

[0010] In the following description, method and system implementations of video summarization with a depth dimension are set forth as preferred examples. Modifications including additions and / or subtractions can be made by those skilled in the art without departing from the scope and spirit of the present invention. Specific details may be omitted to avoid obscuring the invention; however, the disclosure should be drafted to enable one skilled in the art to practice the teachings herein without undue experimentation.

[0011] The present invention provides a computer-implemented method for summarizing video that first identifies moving objects in an input raw video, and then utilizes the three-dimensional information of the scene to synthesize the summarizing video. Object recognition can be based on selection criteria such as object shape and structure, colour, precise appearance and form of spatial motion.

[0012] refer to figure 1 , animation of each live object cutout 1...

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Abstract

The invention relates to a video summary with depth information. A computer executable method for creating a summary video with the depth information comprises the following steps: recognizing moving objects from an input primary video; generating animated moving object cut blocks aiming at recognized moving objects through copying and piling sequential frames in the input primary video containing moving object images; establishing a scene background through using a structure of a scene in the input primary video and estimating any loss part; establishing a three-dimensional scene through using a foreground object and the depth information of the scene background in the input primary video, and overlaying the animated moving object cut blocks on the three-dimensional scene according to respective longitude, dimensionality and depth positions of the animated moving object cut blocks in the three-dimensional scene so as to display a dynamic 3D (three-dimensional) scene; and compositing to obtain the summary video through using the dynamic 3D scene.

Description

technical field [0001] The present invention generally relates to video analysis, indexing and retrieval in video surveillance. In particular, the present invention relates to a method and system for analyzing and summarizing video to aid in the search and identification of desired content. Background technique [0002] Sorting through video cuts to try to locate certain content or events is a tedious and time-consuming process. The viewer must carefully review the entire video cut, which may or may not contain the scene of interest in each frame. This problem is even more serious if the scene being viewed is captured continuously in video surveillance for a long period of time. Furthermore, in commercial and public safety surveillance, which often includes a network of hundreds of surveillance video cameras capturing multiple infinite streams of video data. There are billions of surveillance video cameras installed throughout the world. In the southern city of China, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06T7/00
Inventor 胡大鹏李志前周晓麦振文
Owner HONG KONG APPLIED SCI & TECH RES INST
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