Frequency domain down-conversion of HDTV using adaptive motion compensation

Author

Vetro, Anthony ; Sun, Huifang ; Bao, Jay ; Poon, Tommy

Author_Institution

Adv. Technol. Lab., Mitsubishi Electr. ITA, Japan

Volume

1

fYear

1997

Firstpage

763

Abstract

The paper investigates the possible means of down converting an incoming HDTV signal into one which is suitable for display onto an NTSC monitor. We present a novel frequency synthesis algorithm which constructs a set of 8×8 DCT coefficients from four original 8×8 DCT blocks. Also, a down-conversion decoder employing a unique adaptive motion compensation algorithm is presented. Using this fixed motion compensation algorithm, the proposed down-conversion technique is compared to the conventional method. Both yield acceptable image sequences with different trade-offs in complexity and quality

Keywords

adaptive signal processing; decoding; digital television; discrete cosine transforms; frequency-domain synthesis; high definition television; image sequences; motion compensation; signal synthesis; transform coding; video coding; DCT coefficients; HDTV signal; NTSC monitor; adaptive motion compensation; adaptive motion compensation algorithm; complexity; digital TV; down-conversion decoder; frequency domain down-conversion; frequency synthesis algorithm; image quality; image sequences; Decoding; Discrete cosine transforms; Displays; Frequency domain analysis; Frequency synthesizers; HDTV; Image sequences; Monitoring; Motion compensation; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1997. Proceedings., International Conference on

Conference_Location

Santa Barbara, CA

Print_ISBN

0-8186-8183-7

Type

conf

DOI

10.1109/ICIP.1997.648074

Filename

648074