发明名称 |
SIMD LAPPED TRANSFORM-BASED DIGITAL MEDIA ENCODING/DECODING |
摘要 |
<p>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.</p> |
申请公布号 |
WO2007021615(A2) |
申请公布日期 |
2007.02.22 |
申请号 |
WO2006US30565 |
申请日期 |
2006.08.03 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
SRINIVASAN, SRIDHAR;TU, CHENGJIE;SHAW, PARKER |
分类号 |
H04N11/04 |
主分类号 |
H04N11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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