Deblocking filter and display device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsWoo-Young CHOI, Kyoung-Mook LIM
Life of this patent
Estimating the term…
Abstract
A deblocking filter includes a color resolution expansion unit, an edge filtering unit and a color resolution contraction unit. The color resolution expansion unit increases a color resolution of input video data to generate first video data. The edge filtering unit performs a blurring operation on a block edge of the first video data based on block size information to generate second video data. The color resolution contraction unit reduces a color resolution of the second video data to generate output video data, a color resolution of the output video data being the same as the color resolution of the input video data.
Claims20
A deblocking filter comprising:
- a color resolution expansion unit configured to increase a color resolution of input video data to generate first video data;
- an edge filtering unit configured to perform a blurring operation on a block edge of the first video data based on block size information to generate second video data;
- and
- a color resolution contraction unit configured to reduce a color resolution of the second video data to generate output video data,
- wherein a color resolution of the output video data is the same as a color resolution of the input video data.
A display device comprising:
- a video decoding unit configured to decode compressed video data to generate input video data and configured to output block size information representing a size of a block unit of the compressed video data;
- a deblocking filter configured to filter the input video data based on the block size information to generate output video data;
- and
- a display unit configured to display the output video data,
- wherein the deblocking filter comprises:
- a color resolution expansion unit configured to increase a color resolution of the input video data to generate first video data;
- an edge filtering unit configured to perform a blurring operation on a block edge of the first video data based on the block size information to generate second video data;
- and
- a color resolution contraction unit configured to reduce a color resolution of the second video data to generate the output video data, wherein a color resolution of the output video data is the same as a color resolution of the input video data.
A deblocking filter method comprising:
- increasing a color resolution of input video data to generate first video data;
- performing a blurring operation on a block edge of the first video data based on block size information to generate second video data;
- and
- reducing a color resolution of the second video data to generate output video data, wherein a color resolution of the output video data is the same as a color resolution of the input video data.
The deblocking filter method of claim 18, wherein the reducing the color resolution of the second video data comprises performing a right shift operation on the second video data.
Dependencies are inferred from the claim text.