Referenced Items are not available for this document.
A high-performance system, which consists of a PC-486, a motion-estimation processor, DCT/IDCT processor, an image grabber, and a camera, is presented for real-time video image compression applications. Also, the motion-estimation and DCT/IDCT processors operate at 12.5 MHz and act as backend processors for the PC-486 through the Vesa local-bus interface. The motion-estimation processor takes around 100 μs to finish computing the motion vector with a tracking range of -8~+7 for each 16×16 block, and, the DCT/IDCT processor takes around 10 μs to compete the two-dimensional DCT/IDCT for each 8×8 block. Totally, for each 256×256 image frame, the system presented takes around 25.6 ms and 10 ms for computing the motion vectors and two-dimensional DCT/IDCT coefficients individually. Therefore, its performance is already good enough for various real-time video image compression applications
Published in:
Consumer Electronics, IEEE Transactions on
(Volume:41
,
Issue:
1
)
Date of Publication: Feb 1995
- Page(s):
- 125 - 131
- ISSN :
- 0098-3063
- INSPEC Accession Number:
- 4930988
- Digital Object Identifier :
- 10.1109/30.370319
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Feb 1995
- Sponsored by :
- IEEE Consumer Electronics Society
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