SIMD LAPPED TRANSFORM-BASED DIGITAL MEDIA ENCODING/DECODING
    3.
    发明公开
    SIMD LAPPED TRANSFORM-BASED DIGITAL MEDIA ENCODING/DECODING 审中-公开
    DIGITALE MEDIENCODIERUNG / -DECODIERUNG AUF DER BASIS VON SIMD-ÜBERLAPPUNGSTRANSformation

    公开(公告)号:EP1913521A4

    公开(公告)日:2017-07-05

    申请号:EP06789461

    申请日:2006-08-03

    摘要: A block transform-based digital media codec achieves faster performance by re-mapping components of the digital media data into vectors or parallel units on which many operations of the transforms can be performed on a parallel or single-instruction, multiple data (SIMD) basis. In the case of a one-dimensional lapped biorthogonal transform, the digital media data components are re-mapped into vectors on which butterfly stages of both overlap pre-/post-filter and block transform portions of the lapped transform can be performed on a SIMD basis. In the case of a two-dimensional lapped biorthogonal transform, the digital media data components are re-mapped into vectors on which a Hadamard operator of both overlap pre-/post-filter and block transform can be performed on a SIMD basis.

    摘要翻译: 基于块变换的数字媒体编解码器通过将数字媒体数据的分量重新映射成向量或并行单元来实现更快的性能,在向量或并行单元上可以基于并行或单指令多数据(SIMD)基础执行变换的许多操作 。 在一维重叠双正交变换的情况下,数字媒体数据分量被重新映射到向量上,重叠的变换的预/后置滤波和块变换部分的蝶形级可以在SIMD上执行 基础。 在二维重叠双正交变换的情况下,数字媒体数据分量被重新映射到两个向量,在这些向量上,可以在SIMD基础上执行重叠前置/后置滤波器和块变换的Hadamard算子。