View source for 18151266. VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS simplified abstract (SAMSUNG ELECTRONICS CO., LTD.)

=VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS=


==Organization Name==

[[:Category:SAMSUNG ELECTRONICS CO., LTD.|SAMSUNG ELECTRONICS CO., LTD.]]


[[Category:SAMSUNG ELECTRONICS CO., LTD.]]

==Inventor(s)==

[[:Category:Alexander Alshin of Seoul (KR)|Alexander Alshin of Seoul (KR)]][[Category:Alexander Alshin of Seoul (KR)]]

[[:Category:Elena Alshina of Seoul (KR)|Elena Alshina of Seoul (KR)]][[Category:Elena Alshina of Seoul (KR)]]

==VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS - A simplified explanation of the abstract==


This abstract first appeared for US patent application 18151266 titled 'VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS

==Simplified Explanation==

The video decoding method described in the patent application involves determining the displacement vector of pixels in a current block without using stored values about pixels outside the reference blocks. It also involves obtaining a prediction block for the current block using motion compensation techniques and gradient values of corresponding reference pixels.

* The method determines the displacement vector of pixels in a current block by using values from reference pixels in two reference blocks.
* The displacement vector is determined per unit time and in either the horizontal or vertical direction.
* The method does not rely on stored values about pixels located outside the boundaries of the reference blocks.
* The prediction block for the current block is obtained using block-unit motion compensation and pixel group unit motion compensation techniques.
* The gradient values of corresponding reference pixels in the reference blocks are used, along with the pixel values and displacement vector, to perform the motion compensation.
* The current pixel group, which is part of the current block, may contain at least one pixel.

==Potential Applications==
* Video compression and encoding technologies
* Video streaming services
* Video playback and decoding software
* Video surveillance systems

==Problems Solved==
* Efficient and accurate video decoding
* Reduction of storage requirements for reference pixel values
* Improved motion compensation techniques
* Enhanced video quality and playback performance

==Benefits==
* Higher compression ratios for video files
* Reduced bandwidth requirements for video streaming
* Improved video playback quality and smoothness
* More efficient video surveillance systems with better motion tracking capabilities


==Original Abstract Submitted==

Provided is a video decoding method including determining a displacement vector per unit time of pixels of a current block in a horizontal direction or a vertical direction, the pixels including a pixel adjacent to an inside of a boundary of the current block, by using values about reference pixels included in a first reference block and a second reference block, without using a stored value about a pixel located outside boundaries of the first reference block and the second reference block; and obtaining a prediction block of the current block by performing block-unit motion compensation and pixel group unit motion compensation on the current block by using a gradient value in the horizontal direction or the vertical direction of a first corresponding reference pixel in the first reference block which corresponds to a current pixel included in a current pixel group in the current block, a gradient value in the horizontal direction or the vertical direction of a second corresponding reference pixel in the second reference block which corresponds to the current pixel, a pixel value of the first corresponding reference pixel, a pixel value of the second corresponding reference pixel, and a displacement vector per unit time of the current pixel in the horizontal direction or the vertical direction. In this regard, the current pixel group may include at least one pixel.



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