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Method for determining whether to transmit video data based on changes of face feature points in video

A technology of video data and facial features, applied in TV, instruments, two-way working systems, etc., can solve the problems of large changes, inability to realize, and reduce the amount of transmitted data.

Inactive Publication Date: 2018-05-04
程桂平
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  • Summary
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Problems solved by technology

[0004] However, for smartphones, they are usually held by the user, so the smartphone is always in motion, and the acquired video information also changes greatly on the whole.
If the identification method of the prior art is adopted, the condition of large fluctuations will basically be satisfied, so the requirement of reducing the amount of transmitted data cannot be realized

Method used

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  • Method for determining whether to transmit video data based on changes of face feature points in video
  • Method for determining whether to transmit video data based on changes of face feature points in video

Examples

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Embodiment Construction

[0017] figure 1 It is a flow chart according to the first embodiment of the present invention.

[0018] Including the following steps:

[0019] Step 1: Start a video call, at least one terminal used by the calling party is a smart phone.

[0020] Step 2: The smart phone collects video data through the camera, and transmits all video data to the other party in real time.

[0021] Step 3: The smart phone extracts the face image from the image frame of the collected video data, and judges whether the change rate of the face image in the previous image frame and the face image in the next image frame is lower than a certain threshold , if it is lower than the threshold, the next image frame will be marked as motionless, otherwise it will be marked as changing. The preferred method for judging the rate of change of the face image is to set a plurality of feature regions for the face, such as the nose region, the mouth region, the eye region, etc., perform different judgments on ...

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Abstract

The invention discloses a method for determining whether to transmit video data based on changes of face feature points in a video. The method includes the following steps: step 1, a video call is started, wherein a terminal used by at least one caller is a smartphone; and step 2, the smartphone acquires video data through a camera and transmits all video data to the other party in real time.

Description

technical field [0001] The invention relates to a video call method in a smart phone. Background technique [0002] Traditional video calls are mainly applied to non-mobile devices, such as PCs or notebooks. On this type of system, since the device is in a fixed location, the users participating in the video call are also basically fixed. [0003] In the prior art, in order to reduce the video capacity to be transmitted, it is adopted to determine whether to send real-time video data by detecting the variation degree of the video frame in the video. [0004] However, for smart phones, it is generally held by the user, so the smart phone is always in motion, and the obtained video information also changes greatly on the whole. If the identification method in the prior art is adopted, the condition of large variation will basically be met, so the requirement of reducing the amount of transmitted data cannot be realized. [0005] The technical problem to be solved in this ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/14H04N21/4788G06K9/00
CPCH04N7/141H04N21/4788G06V40/161G06V40/168
Inventor 程桂平
Owner 程桂平
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