Method and apparatus for spatial error concealment of image
AssigneeSamsung Electronics Co., Ltd.
InventorsSeung-Woo Shin, Se-an Kwon
Life of this patent
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Abstract
A method and apparatus for error concealment in image data including a block having an error, the method including: dividing a region that surrounds the block into a plurality of neighboring regions; separately calculating edge angles of the neighboring regions; and selectively performing directional interpolation based on the calculated edge angles.
Claims21
A method of error concealment in image data, the method comprising:
- detecting a block having an error from a current picture in the image data;
- dividing a region that surrounds the detected block into a plurality of neighboring regions;
- separately obtaining an edge angle for each of the neighboring regions;
- and
- restoring the detected block by selectively performing directional interpolation in a direction of the obtained edge angles,
- wherein the restoring comprises determining whether at least a predetermined number of edge angles from among the obtained edge angles are identical and performing the directional interpolation if the at least predetermined number of edge angles are identical.
An apparatus for error concealment in image data, the apparatus comprising:
- an error detection unit to detect a block having an error from a current picture in the image data;
- an edge detection unit to divide a region that surrounds the detected block into a plurality of neighboring regions and to separately obtain an edge angle for each of the neighboring regions;
- and
- an error concealment unit to restore the detected block by selectively performing directional interpolation in a direction of the obtained edge angles,
- wherein the error concealment unit comprises a determination unit to determine whether at least a predetermined number of edge angles from among the obtained edge angles are identical and an interpolation unit to perform the directional interpolation if the at least predetermined number of edge angles are identical.
An apparatus for error concealment in image data including a block having an error, the apparatus comprising:
- an edge detection unit to divide a region that surrounds the block having the error into a plurality of neighboring regions and to separately obtain an edge angle for each of the neighboring regions;
- and
- an error concealment unit to restore the block having the error by selectively performing directional interpolation in a direction of the obtained edge angles,
- wherein the error concealment unit comprises a determination unit to determine whether at least a predetermined number of edge angles from among the obtained edge angles are identical and an interpolation unit to perform the directional interpolation if the at least predetermined number of edge angles are identical.
A method of error concealment in image data including a block having an error, the method comprising:
- dividing a region that surrounds the block having the error into a plurality of neighboring regions;
- separately obtaining an edge angle for each of the neighboring regions;
- and
- restoring the block having the error by selectively performing directional interpolation in a direction of the obtained edge angles,
- wherein the restoring comprises determining whether at least a predetermined number of edge angles from among the obtained edge angles are identical and performing the directional interpolation if the at least predetermined number of edge angles are identical.
Dependencies are inferred from the claim text.