Sensitive video-frequency detecting method

A video detection and sensitive technology, applied in the field of computer network, can solve the problem of dynamic yellow information that is harmful

Inactive Publication Date: 2004-06-30
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

But society has an urgent need for this, because dynamic yellow information is more harmful

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Embodiment Construction

[0019] The technical problem to be solved by the present invention is to obtain single frame information and motion information between frames of a video. We find out the motion features of moving objects in the video by obtaining the inter-frame information, and find out the key frames in the video. After obtaining the key frames, skin detection and human body segmentation are performed on the key frames to obtain the degree of skin exposure, and then a comprehensive evaluation of the sensitivity of the entire video is made on the basis of identifying all key frames.

[0020] Before explaining the definition of optical flow, we must first understand the difference between image flow and optical flow. The so-called image flow is to use the two-dimensional velocity of the projection point of the object in the three-dimensional space on the image plane to represent the velocity of the corresponding projection point in the three-dimensional space. To illustrate with Figure 1, a r...

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Abstract

The invention is a kind of sensing video frequency detection method. The steps are: selects key video frame; detects the existence of skin; determines if the key frame is sensitive or not; calculates the distribution density of sensing frame, if the sensing frame density surpasses the threshold, it is judged as sensing video frequency. The invention can prevent the user browsing sensitive video frequency information from internet. When the user clicks the video frequency link, the software downloads the video frequency and detects the sensitivity when playing it. When reaching the sensitive part of the video frequency, it stops the play automatically.

Description

technical field [0001] The invention relates to computer network technology, in particular to a sensitive video detection method. Background technique [0002] The rapid popularization and wide application of the Internet have had a profound impact on the development of computer technology. The networking of computer software applications has put forward new requirements for software technology. Network information security is an extremely important issue in the new requirements, which is sensitive to the network. The filtering of information (such as uncivilized or reactionary words and images) is a specific topic in information security. Some researches have been carried out on the filtering of sensitive information on the network, and some web filtering and detection products have appeared, such as SmartFilter, NoPorn and other anti-pornography software, which can prevent ordinary computer users from using their browsers to access pornographic websites. Among them, Smart...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/40G06T7/00
Inventor 谭铁牛胡卫明王谦杨金峰
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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