Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Video call method and system

A technology for video calls and video images, applied in transmission systems, two-way working systems, televisions, etc., can solve the problems of occupying terminal processing performance, increasing local terminal load, and large data volume, improving user experience, reducing computing load, The effect of precise playback

Active Publication Date: 2017-07-21
CHINA COAL ELECTRIC CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And because video images are collected very frequently during video calls, and the amount of data is very large, the task of rotating video images will increase the load on the CPU of the local terminal and occupy the processing performance of the terminal.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video call method and system
  • Video call method and system
  • Video call method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0048] According to a preferred embodiment of the present invention, the method also includes the steps of:

[0049] During a video call:

[0050] The first terminal and the second terminal respectively monitor whether the rotation angle values ​​of the first video image and the second video image collected by themselves in real time change:

[0051] If the rotation angle value of the first video image changes, the first terminal sends an Info message carrying the rotation angle value of the first video image collected by the first terminal in real time to the second terminal, and the image decoder of the second terminal transmits an Info message according to the Info message. The rotation angle value of the first video image in the first video image is rotated, and the angle of the first video image is adjusted to play correctly;

[0052] If the rotation angle value of the second video image changes, the second terminal sends an Info message carrying the rotation angle value...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a video call method and system. The method comprises the following steps: a first terminal sends a calling message carrying a rotary angle value of a first video image acquired by the first terminal in real time to a second terminal; the second terminal replies a 200ok message carrying the rotary angle value of a second video image acquired by the second terminal in real time to the first terminal after receiving the calling message; the first terminal replies an ACK message to the second terminal after receiving the 200ok message, and then establishes a video call; the first terminal and the second video mutually send the acquired video images; the first terminal initializes an image decoder of the first terminal according to the rotary angle value of the second video image so as to perform image rotation on the second video image; the second terminal initializes an image decoder of the second terminal according to the rotary angle value of the first video image so as to perform the image rotation on the first video image. An operation load of a CPU of the terminal in the video call process is lowered by use of the video call method disclosed by the invention.

Description

technical field [0001] The present invention relates to the technical field of terminals. More specifically, it relates to a video call method and system. Background technique [0002] With the rapid development of terminal technology and network technology, video calls have been more and more widely used. When a video call is made between two terminals, the image processing method is as follows: after the video image is collected by the camera of the terminal, the local terminal that collects the video image performs YUV component rotation on the video image, encodes it, and finally transmits it to the other party through the network terminal. Wherein, each terminal respectively includes a CPU, a video image acquisition unit, a transceiver unit, an image encoder, an image decoder and a display unit. [0003] When making a video call between two terminals, such as figure 1 As shown, the calling terminal and the called terminal establish a session through SIP (Session Ini...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/14H04N21/4788H04N21/44H04L29/06
CPCH04N7/147H04N21/44008H04N21/4788H04L65/75H04L65/1104
Inventor 田敬秋魏星唐黎明王景阳何玲其他发明人请求不公开姓名
Owner CHINA COAL ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com