18439221. VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE

Organization Name

SAMSUNG ELECTRONICS CO., LTD.

Inventor(s)

Anish Tamse of Suwon-si (KR)

Minwoo Park of Suwon-si (KR)

Gahyun Ryu of Suwon-si (KR)

Minsoo Park of Suwon-si (KR)

Seungsoo Jeong of Suwon-si (KR)

Kiho Choi of Suwon-si (KR)

Narae Choi of Suwon-si (KR)

Woongil Choi of Suwon-si (KR)

Yinji Piao of Suwon-si (KR)

VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18439221 titled 'VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE

Simplified Explanation

The patent application describes a method and device for video decoding that determines if a prediction mode of a block is affine, splits the block into sub-blocks, calculates motion vectors, and performs chroma block prediction based on the motion vectors.

• The method determines if the prediction mode of a block is affine.
• If the block is affine, it splits the block into sub-blocks of a square shape.
• It calculates a mean luma motion vector for neighboring sub-blocks.
• The mean luma motion vector is used as the motion vector for the corresponding chroma block.
• Chroma block prediction is performed using the determined motion vector.

Key Features and Innovation

• Determination of affine prediction mode in video decoding.
• Subdivision of luma blocks into sub-blocks for improved motion estimation.
• Calculation of mean luma motion vector for neighboring sub-blocks.
• Utilization of the mean luma motion vector for chroma block prediction.

Potential Applications

This technology can be applied in video encoding and decoding processes for improved prediction accuracy and compression efficiency.

Problems Solved

• Enhanced prediction accuracy in video decoding.
• Efficient motion vector calculation for chroma block prediction.

Benefits

• Improved video quality.
• Higher compression efficiency.
• Reduced data transmission bandwidth.

Commercial Applications

Title: Enhanced Video Compression Technology for Broadcasting and Streaming Services This technology can be utilized in broadcasting, streaming services, video conferencing, and surveillance systems to enhance video quality and reduce bandwidth requirements, leading to cost savings and improved user experience.

Prior Art

No specific prior art information is provided in the abstract.

Frequently Updated Research

There is no information on frequently updated research related to this technology.

Questions about Video Decoding Technology

Question 1

How does the method determine if the prediction mode of a block is affine?

The method determines the prediction mode of a block by analyzing its characteristics and comparing them to predefined affine mode criteria.

Question 2

What are the potential benefits of using mean luma motion vectors for chroma block prediction?

Using mean luma motion vectors can improve the accuracy of motion estimation and enhance the quality of chroma block prediction in video decoding processes.

Original Abstract Submitted

A video decoding method and device for determining whether a prediction mode of a current block is an affine mode; splitting, when the prediction mode of the current block is the affine mode, a luma block of the current block into a plurality of sub luma blocks having a square shape based on a predefined sub block size; determining a mean luma motion vector for four neighboring sub luma blocks among the plurality of sub luma blocks, by using a motion vector of an upper-left sub luma block of the four sub luma blocks and a motion vector of a lower-right sub luma block of the four sub luma blocks; determining the mean luma motion vector to be a motion vector of a current sub chroma block corresponding to the four sub luma blocks; and performing prediction on the current sub chroma block by using the determined motion vector, in a video encoding and decoding process are suggested.