DocumentCode
398513
Title
Efficient image down-conversion for mixed field/frame-mode macroblocks
Author
Suh, Sungioo ; Seong Soo Chun ; Lee, Myung-Hee ; Sull, Sanghoon
Author_Institution
Dept. of Electron. & Comput. Eng., Korea Univ., Seoul, South Korea
Volume
1
fYear
2003
fDate
14-17 Sept. 2003
Abstract
An efficient image resizing algorithm in the compressed domain with 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 (IDGT) kernel which performs stronger lowpass filtering than the simple truncation in the DCT domain. Experimental results show that the proposed algorithm provides the resized image quality similar to an existing method with significantly lower computational complexity.
Keywords
discrete cosine transforms; low-pass filters; transform coding; video coding; DCT; discrete cosine transform; image down-conversion; image resizing algorithm; lowpass filtering; mixed field-frame-mode macroblocks; modified inverse DCT; video coding; Computational complexity; Decoding; Discrete cosine transforms; Filtering; Frequency; Image coding; Image converters; Image quality; Kernel; Video coding;
fLanguage
English
Publisher
ieee
Conference_Titel
Image Processing, 2003. ICIP 2003. Proceedings. 2003 International Conference on
ISSN
1522-4880
Print_ISBN
0-7803-7750-8
Type
conf
DOI
10.1109/ICIP.2003.1246927
Filename
1246927
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