Inverse discrete cosine transform processor using parallel proce

Details Inverse discrete cosine transform processor using parallel proce Inverse discrete cosine transform processor using parallel proce

1995-10-20

1999-02-02

Couso, Yon J.

Image analysis

Image compression or coding

Transform coding

382233, 36472503, G06K 936

Patent

active

058676015

ABSTRACT:
An inverse discrete cosine transform processor for transforming a video signal from frequency domain signals into spatial domain signals. A bus converter receives DCT coefficient data from parallel processing paths and converts the DCT coefficient data to even and odd processing paths. Partial IDCT processors convert, in parallel, the coefficient data from the even and off processing paths to produce intermediate coefficient values by performing a one dimensional transform. The intermediate coefficient values are transposed in a transpose RAM to produce transposed intermediate coefficient values which are subsequently separated into even and odd processing paths and converted in parallel to produce pixel values by performing a one dimensional transform.

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