Huawei technologies co., ltd. (20240163425). Gradual Decoding Refresh In Video Coding simplified abstract

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Gradual Decoding Refresh In Video Coding

Organization Name

huawei technologies co., ltd.

Inventor(s)

FNU Hendry of San Diego CA (US)

Ye-Kui Wang of San Diego CA (US)

Jianle Chen of San Diego CA (US)

Gradual Decoding Refresh In Video Coding - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240163425 titled 'Gradual Decoding Refresh In Video Coding

Simplified Explanation

The abstract describes a method for decoding a coded video bitstream by a video decoder, including determining the type of picture in the bitstream, setting a flag to prevent output of certain pictures, decoding the picture, and storing it in a buffer.

  • The method involves determining whether a specific type of picture in the video bitstream is the initial picture in decoding order or follows a specific network abstraction layer unit.
  • If the picture meets certain criteria, a flag is set to prevent its output during decoding.
  • The picture is then decoded and stored in a buffer for further processing.

Potential Applications

This technology can be applied in video decoding systems, such as in multimedia devices, video streaming services, and video editing software.

Problems Solved

This method helps in efficiently decoding video bitstreams by managing the output of certain pictures based on their position and type in the decoding order.

Benefits

The method improves the decoding process by optimizing the output of specific pictures, leading to better video quality and smoother playback.

Potential Commercial Applications

This technology can be utilized in consumer electronics, video production tools, online video platforms, and video surveillance systems.

Possible Prior Art

One possible prior art could be the use of flags in video decoding processes to control the output of specific pictures based on their characteristics.

Unanswered Questions

How does this method impact the overall performance of the video decoder system?

This article does not provide specific details on how the method affects the performance metrics of the video decoder, such as decoding speed, resource utilization, or power consumption.

Are there any potential limitations or drawbacks of implementing this method in video decoding systems?

The article does not address any potential challenges, limitations, or drawbacks that may arise from integrating this method into existing video decoding systems.


Original Abstract Submitted

a method of decoding a coded video bitstream implemented by a video decoder is provided. the method includes the video decoder determining whether a gradual decoding refresh (gdr) picture in the coded video bitstream is an initial picture in decoding order or the initial picture following an end of sequence (eos) network abstraction layer (nal) unit in the decoding order; setting a flag to a value to prevent the gdr picture from being output when the gdr picture is the initial picture in decoding order or the initial picture following the eos nal unit in the decoding order; decoding the gdr picture; and storing the gdr picture in a decoded picture buffer (dpb).