Samsung electronics co., ltd. (20240187637). VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE simplified abstract

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 20240187637 titled 'VIDEO DECODING METHOD AND DEVICE, AND VIDEO ENCODING METHOD AND DEVICE

Simplified Explanation

The patent application describes a video decoding method and device that determine whether a prediction mode of a current block is an affine mode, and if so, split the luma block of the current block into sub luma blocks and determine a mean luma motion vector for prediction.

• Prediction mode determination:

 - Method and device determine if the prediction mode of a current block is an affine mode.

• Sub luma block splitting:

 - If the prediction mode is affine, the luma block is split into sub luma blocks with a square shape based on a predefined sub block size.

• Mean luma motion vector determination:

 - Mean luma motion vector is determined for four neighboring sub luma blocks by using motion vectors of upper-left and lower-right sub luma blocks.

• Motion vector usage:

 - The mean luma motion vector is used as the motion vector for the current sub chroma block for prediction in video encoding and decoding processes.

Potential Applications

This technology can be applied in video encoding and decoding systems, especially in scenarios where efficient prediction modes are crucial for reducing data size and improving video quality.

Problems Solved

1. Efficient prediction mode determination for video blocks. 2. Improved motion vector calculation for better video encoding and decoding performance.

Benefits

1. Enhanced video compression efficiency. 2. Improved video quality through accurate motion vector prediction.

Potential Commercial Applications

Optimized video encoding and decoding systems for various industries such as broadcasting, streaming services, surveillance, and video conferencing.

Possible Prior Art

Prior art related to video encoding and decoding methods using motion vectors and prediction modes may exist, but specific examples are not provided in this patent application.

How does this technology compare to existing video encoding methods?

This technology improves prediction accuracy and efficiency by utilizing mean luma motion vectors for sub luma blocks. It would be interesting to see a comparison with traditional methods in terms of compression ratio and video quality.

What impact could this technology have on real-time video processing applications?

Real-time video processing applications require fast and accurate encoding and decoding processes. Understanding how this technology performs in real-time scenarios could provide insights into its practical applications and limitations.

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.