Abstract
Matrix methods to construct simple fast integer order 16 type I, II cosine transforms of low complexity are considered. A new approach and a generalized method are proposed to construct integer order 8 cosine transforms and their fast algorithms without multiplication. A new integer step transform with fast algorithm is introduced. Two transforms are proposed, whose speed is 1.7 to 2.9 times greater and which provide a higher quality of video coding than standard H.265 does.
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