Efficient image downconversion for mixed field/frame-mode macroblocks

Sungjoo Suh; Seong Soo Chun; Myung Hee Lee; Sanghoon Sull

doi:10.1049/el:20030362

Efficient image downconversion for mixed field/frame-mode macroblocks

Sungjoo Suh, Seong Soo Chun, Myung Hee Lee, Sanghoon Sull

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

An efficient image downconversion algorithm in the compressed domain for mixed field/frame-mode macroblocks is proposed. A 16 × 16 field/frame-mode macroblock is converted into an 8 × 8 reduced block in the discrete cosine transform (DCT) domain using a modified inverse DCT (IDCT) kernel. Experimental results show that the proposed algorithm provides the downconverted image quality similar to an existing method with significantly lower computational cost.

Original language	English
Pages (from-to)	514-515
Number of pages	2
Journal	Electronics Letters
Volume	39
Issue number	6
DOIs	https://doi.org/10.1049/el:20030362
Publication status	Published - 2003 Mar 20

ASJC Scopus subject areas

Electrical and Electronic Engineering

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AB - An efficient image downconversion algorithm in the compressed domain for mixed field/frame-mode macroblocks is proposed. A 16 × 16 field/frame-mode macroblock is converted into an 8 × 8 reduced block in the discrete cosine transform (DCT) domain using a modified inverse DCT (IDCT) kernel. Experimental results show that the proposed algorithm provides the downconverted image quality similar to an existing method with significantly lower computational cost.

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Efficient image downconversion for mixed field/frame-mode macroblocks

Abstract

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