Method for encoding and decoding video as well as device and system therefor
A video encoding, decoding and encoding technology, applied in the field of devices and systems, and video encoding and decoding methods, to achieve the effects of improving utilization, increasing bits, and reducing bits
Inactive Publication Date: 2012-11-14
BEIJING UNIV OF TECH
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The embodiment of the present invention provides a video encoding and decoding method, device and system to solve the problem of encoding bit utilization when encoding violent motion video in the prior art Low-rate defects, improve encoding bit utilization
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] figure 2 It is a schematic flow chart of an embodiment of the video encoding and decoding method of the present invention, such as figure 2 shown, including the following steps:
[0030] Step 101. Determine the motion intensity of each macroblock in the pre-encoded video. When the motion intensity of the macroblock is greater than or eq...
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
Login to View More Abstract
The embodiment of the invention provides a method for encoding and decoding a video as well as a device and a system therefor. The method for encoding and decoding the video comprises the following steps: judging the motion intensity of each macro-block in a pre-encoding video; if the motion intensity of the macro-block is more than or equal to the preset threshold value, determining the macro-block as a violent motion area, if not, determining the macro-block as a non-violent motion area; and encoding the violent motion area by adopting a down-sampling mode. The device for encoding and decoding the video comprises a determining module and an encoding process module. The embodiment of the invention further provides the system for encoding and decoding the video, wherein the system comprises the device for encoding and decoding the video. The method for encoding and decoding the video as well as the device and the system therefor in the embodiment of the invention can decrease the required bit in the process of video encoding and improve the utilization factor of the encoding bit.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of image processing, and in particular, to a video encoding and decoding method, device, and system. [0002] Background technique [0003] In order to meet the current limited transmission bandwidth and storage media to transmit and store images, it is usually necessary to compress and encode video sequences. Encoders in the prior art mostly use a hybrid coding method of transformation and prediction. Such as figure 1 As shown, the input frame or field Fn is processed by the encoder in units of macroblocks. If intra-frame prediction coding is used, the predicted value PRED is obtained by motion compensation from the previously coded reference image in the current video, where the reference Images are denoted by F'n-1. In order to improve prediction accuracy and compression ratio, the actual reference image can be selected from past or future (referring to display order) encoded, de...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/26H04N19/11H04N19/132H04N19/176H04N19/503H04N19/593
Inventor 尹宝才施云惠孙晓伟侯艳丽
Owner BEIJING UNIV OF TECH