18583523. ADAPTIVE QUANTIZATION FOR ENHANCEMENT LAYER VIDEO CODING simplified abstract (Microsoft Technology Licensing, LLC)

ADAPTIVE QUANTIZATION FOR ENHANCEMENT LAYER VIDEO CODING

Organization Name

Microsoft Technology Licensing, LLC

Inventor(s)

Shankar Regunathan of Bellevue WA (US)

Shijun Sun of Redmond WA (US)

Chengjie Tu of Sammamish WA (US)

Chih-Lung Lin of Redmond WA (US)

ADAPTIVE QUANTIZATION FOR ENHANCEMENT LAYER VIDEO CODING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18583523 titled 'ADAPTIVE QUANTIZATION FOR ENHANCEMENT LAYER VIDEO CODING

Simplified Explanation: The patent application discusses techniques and tools for encoding enhancement layer video with spatially varying quantization and quantization variations between color channels. Corresponding decoding techniques are also presented.

• Key Features and Innovation:

   * Encoding tool determines spatial and color channel quantization variations in a picture.
   * Quantization parameters for macroblocks are signaled in the encoded bit stream.
   * Decoding tool predicts quantization parameters and performs inverse quantization.

• Potential Applications:

The technology can be applied in video streaming, video compression, and multimedia communication systems.

• Problems Solved:

The technology addresses the need for efficient encoding and decoding of video with spatially varying quantization and color channel variations.

• Benefits:

   * Improved video quality with optimized quantization.
   * Enhanced compression efficiency.
   * Better utilization of bandwidth in multimedia communication.

• Commercial Applications:

Potential commercial applications include video streaming services, video conferencing platforms, and multimedia content providers.

• Prior Art:

Further research can be conducted on existing video encoding and decoding techniques, as well as advancements in multimedia communication systems.

• Frequently Updated Research:

Stay updated on advancements in video compression algorithms, multimedia communication standards, and video streaming technologies.

Questions about video encoding with spatially varying quantization: 1. How does spatially varying quantization improve video quality? 2. What are the implications of color channel variations in video encoding?

Original Abstract Submitted

Techniques and tools for encoding enhancement layer video with quantization that varies spatially and/or between color channels are presented, along with corresponding decoding techniques and tools. For example, an encoding tool determines whether quantization varies spatially over a picture, and the tool also determines whether quantization varies between color channels in the picture. The tool signals quantization parameters for macroblocks in the picture in an encoded bit stream. In some implementations, to signal the quantization parameters, the tool predicts the quantization parameters, and the quantization parameters are signaled with reference to the predicted quantization parameters. A decoding tool receives the encoded bit stream, predicts the quantization parameters, and uses the signaled information to determine the quantization parameters for the macroblocks of the enhancement layer video. The decoding tool performs inverse quantization that can vary spatially and/or between color channels.