Unlock instant, AI-driven research and patent intelligence for your innovation.

A key frame size control method and device

A size control and key frame technology, applied in the field of video coding, can solve the problem of no I frame size control

Active Publication Date: 2019-09-17
ZHEJIANG DAHUA TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, there is currently no way to control the size of the I frame

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
  • A key frame size control method and device
  • A key frame size control method and device
  • A key frame size control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0044] The I frame is an important reference frame in inter-frame compression coding. It is a fully intra-frame compressed coded frame. When decoding, only the data of the I frame can be used to reconstruct the current and subsequent complete images. For example, when the terminal sends to the Microcontroller Unit (MCU for short), instead of sending a complete picture to the remote end every time, it only sends the next picture that changes...

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 keyframe size control method and device. According to the method, complexity of a keyframe to be encoded is estimated based on complexity of an encoded frame, a first quantification parameter for encoding operation is obtained, and whether the size of the encoded keyframe exceeds a preset threshold value is estimated according to the first quantification parameter; if yes, a second quantification parameter is determined; the encoding operation is performed according to the second quantification parameter in such a way that the size of the encoded keyframe is lower than the threshold value, exception caused by an oversize keyframe can be prevented, and video quality can be prevented from being affected.

Description

technical field [0001] The present invention relates to the field of video coding, in particular to a key frame size control method and device. Background technique [0002] The amount of video image data is relatively large, and it usually needs to be encoded. The encoded data is called a video code stream, and the video code stream is transmitted to the client through a wired or wireless network, and then decoded and viewed. The above steps mainly include encoding, transmission, decoding, etc. Due to limitations of hardware or other conditions in these steps, there are usually certain requirements on the size of the compressed video stream, such as an upper limit for network transmission. [0003] The key frame in video coding is also called I frame, which is an encoded frame that does not depend on other encoded video frames in the encoding process, and can independently decode the I frame code stream. In practical applications, the I frame is usually used as a random acc...

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 Patents(China)
IPC IPC(8): H04N19/172H04N19/115
Inventor 林聚财
Owner ZHEJIANG DAHUA TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com