A 100 MHz 2-D 8×8 DCT/IDCT processor for HDTV applications

  • Authors:
  • A. Madisetti;A. N. Willson, Jr.

  • Affiliations:
  • Dept. of Electr. Eng., California Univ., Los Angeles, CA;-

  • Venue:
  • IEEE Transactions on Circuits and Systems for Video Technology
  • Year:
  • 1995

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Abstract

This paper discusses the design of a combined DCT/IDCT CMOS integrated circuit for real time processing of HDTV signals. The processor operates on 8×8 blocks. Inputs include the blocked pixels that are scanned one pixel at a time, and external control signals that control the forward or inverse modes of operation. Input pixels have a precision of 9-b for the DCT and 12-b for the IDCT. The layout has been generated with a 0.8 μm CMOS library using the Mentor Graphics GDT tools and measures under 10 mm2. Critical path simulation indicates a maximum input sample rate of 100 MHz