Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 9, 2021
Patent Application Number
16388429
Date Filed
April 18, 2019
Patent Primary Examiner
Patent abstract
The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
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