View source for Lg electronics inc. (20240187588). IMAGE CODING APPARATUS AND METHOD THEREOF BASED ON A QUANTIZATION PARAMETER DERIVATION simplified abstract

=IMAGE CODING APPARATUS AND METHOD THEREOF BASED ON A QUANTIZATION PARAMETER DERIVATION=


==Organization Name==

[[:Category:lg electronics inc.|lg electronics inc.]]


[[Category:lg electronics inc.]]

==Inventor(s)==

[[:Category:Seunghwan Kim of Seoul (KR)|Seunghwan Kim of Seoul (KR)]][[Category:Seunghwan Kim of Seoul (KR)]]

[[:Category:Jaehyun Lim of Seoul (KR)|Jaehyun Lim of Seoul (KR)]][[Category:Jaehyun Lim of Seoul (KR)]]

==IMAGE CODING APPARATUS AND METHOD THEREOF BASED ON A QUANTIZATION PARAMETER DERIVATION - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240187588 titled 'IMAGE CODING APPARATUS AND METHOD THEREOF BASED ON A QUANTIZATION PARAMETER DERIVATION

==Simplified Explanation==
This patent application describes a method for decoding images using a decoding apparatus. The method involves deriving parameters, performing quantization, generating samples, and reconstructing blocks based on available information.

* Decoding image information with quantization parameter (QP)
* Deriving expected average luma value of a block from neighboring samples
* Deriving quantization parameter offset (QP offset) for luma quantization parameter (luma QP)
* Performing inverse quantization for a quantization group
* Generating residual and prediction samples
* Reconstructing samples for the block

==Potential Applications==
This technology can be applied in video decoding systems, image processing software, and multimedia applications where efficient decoding of images is crucial.

==Problems Solved==
This method addresses the challenge of accurately decoding image information and reconstructing blocks with minimal loss of quality.

==Benefits==
The benefits of this technology include improved image quality, reduced data loss during decoding, and enhanced efficiency in image processing tasks.

==Commercial Applications==
* Video streaming services
* Video conferencing software
* Security surveillance systems

==Prior Art==
There are existing methods for image decoding, but this patent application introduces a novel approach to improving the accuracy and efficiency of the process.

==Frequently Updated Research==
Research in image processing and video compression techniques may provide further advancements in this technology.

==Questions about Image Decoding==
===Question 1===
How does this method improve the efficiency of image decoding compared to existing techniques?
This method enhances efficiency by accurately deriving parameters and performing quantization based on available information, leading to better reconstruction of image blocks.

===Question 2===
What are the potential implications of this technology in the field of multimedia applications?
This technology can significantly impact multimedia applications by improving the quality of decoded images and enhancing the overall user experience.


==Original Abstract Submitted==

according to an embodiment of the present invention, a picture decoding method performed by a decoding apparatus is provided. the method comprises: decoding image information comprising information on a quantization parameter (qp), deriving an expected average luma value of a current block from neighboring available samples, deriving a quantization parameter offset (qp offset) for deriving a luma quantization parameter (luma qp) based on the expected average luma value and the information on the qp, deriving the luma qp based on the qp offset, performing an inverse quantization for a quantization group comprising the current block based on the derived luma qp, generating residual samples for the current block based on the inverse quantization, generating prediction samples for the current block based on the image information and generating reconstructed samples for the current block based on the residual samples for the current block and the prediction samples for the current block.



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