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Video event detection method based on multimedia analysis

A technology for video events, detection methods

Inactive Publication Date: 2011-12-28
INST OF AUTOMATION CHINESE ACAD OF SCI
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Building a general framework is difficult due to diverse domain knowledge and insufficient training samples

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  • Video event detection method based on multimedia analysis
  • Video event detection method based on multimedia analysis
  • Video event detection method based on multimedia analysis

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Embodiment Construction

[0026] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] The technical scheme of the video event detection method based on multimedia analysis of the present invention includes the following steps: (1) Use text analysis to analyze movies, sports, and news videos to obtain a small amount of labeled video data; (2) Obtain a large number of event-related videos As unlabeled samples, the data increases the amount of information in the data distribution; (3) The semi-supervised multi-instance learning algorithm based on the graph model uses a small amount of automatically annotated video data and a large amount of event-related video data for training to obtain an event model; ( 4) Realize event recognition and detection based on the learned event model. By using text anal...

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Abstract

The present invention is a video event detection method based on multimedia analysis, which includes: using text analysis to analyze the video to obtain a small amount of automatically marked video data; using multiple keywords to obtain a large number of event-related videos through a network video search engine Data; a semi-supervised multi-instance learning algorithm based on a graph model, using a small amount of automatically labeled video data and a large amount of event-related video data for training, and using the similarity criteria of event examples and the positive and negative attribute criteria of event packets to construct The mathematical description model of the event adopts a constrained convex-convex process method to solve a large amount of video data related to the event; the local similarity measure learning method uses the spatial distribution characteristics of the samples to learn and obtain effective similarity. The event model is used to realize event identification and location; according to the event model, the content of the video is semantically analyzed to obtain the location information of the event in the video.

Description

Technical field [0001] The invention belongs to the technical field of pattern recognition and relates to a video event detection method based on multimedia analysis. Background technique [0002] Video event detection technology based on multimedia analysis refers to the use of a computer to perform calculations and analysis from the video through calculation algorithm software, extract useful information in the video, and complete this information extraction and understanding. It is more popular, that is The most critical technology for the computer to extract and understand the "content" of the video is to use the computer to analyze the video signal to extract some specific events that occur in the video scene or the specific behavior of the monitoring target. [0003] With the continuous development of video processing technology and the needs of the international anti-terrorism situation, intelligent video analysis technology has gradually become a research hotspot. More matu...

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Application Information

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IPC IPC(8): G06F17/30
Inventor 徐常胜卢汉清张天柱刘偲
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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