18098997. CHROMA BLOCK PREDICTION METHOD AND APPARATUS simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)

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CHROMA BLOCK PREDICTION METHOD AND APPARATUS

Organization Name

HUAWEI TECHNOLOGIES CO., LTD.

Inventor(s)

Xiang Ma of Moscow (RU)

Jianle Chen of San Diego CA (US)

Haitao Yang of Shenzhen (CN)

CHROMA BLOCK PREDICTION METHOD AND APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18098997 titled 'CHROMA BLOCK PREDICTION METHOD AND APPARATUS

Simplified Explanation

The patent application describes a method and apparatus for predicting chroma blocks in an image. Here is a simplified explanation of the abstract:

  • The method starts by obtaining the maximum and minimum luma values from neighboring samples of a target chroma block.
  • A first difference is calculated by subtracting the minimum luma value from the maximum luma value.
  • If the first difference is not zero, it is processed based on the number of significant bits and a preset bit depth to obtain a second difference.
  • Based on a first chroma value, a second chroma value, and the second difference, an intra prediction model parameter is determined for the target chroma block.
  • Prediction information for the target chroma block is then determined using the intra prediction model parameter and luma reconstruction information for the target chroma block.

Potential applications of this technology:

  • Video compression: The method can be used in video compression algorithms to improve the efficiency of encoding chroma information.
  • Image processing: The technique can be applied in various image processing applications, such as image enhancement or image recognition.

Problems solved by this technology:

  • Efficient chroma block prediction: The method provides a more accurate prediction of chroma blocks, which can lead to better image quality and reduced data size.
  • Handling different luma values: By considering the maximum and minimum luma values, the method can adapt to different lighting conditions and improve the prediction accuracy.

Benefits of this technology:

  • Improved image quality: The accurate prediction of chroma blocks can result in sharper and more detailed images.
  • Reduced data size: By efficiently predicting chroma blocks, the method can reduce the amount of data needed for encoding, leading to smaller file sizes and faster transmission.
  • Adaptability to different lighting conditions: The method can handle variations in luma values, making it suitable for different lighting conditions and environments.


Original Abstract Submitted

This application provides a chroma block prediction method and apparatus. The method includes: obtaining a maximum luma value and a minimum luma value based on luma samples corresponding to neighboring samples of a target chroma block, and calculating a first difference between the maximum luma value and the minimum luma value; if the first difference is not equal to 0, processing the first difference based on a quantity of significant bits of the first difference and a first preset bit depth to obtain a second difference; and determining, based on a first chroma value, a second chroma value, and the second difference, an intra prediction model parameter corresponding to the target chroma block, and determining prediction information of the target chroma block based on the intra prediction model parameter and luma reconstruction information corresponding to the target chroma block.

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