Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Chung-Neng Wang"'
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2007 (2007)
This paper proposes a low-complexity multiple-window video embedding transcoder (MW-VET) based on H.264/AVC standard for various applications that require video embedding services including picture-in-picture (PIP), multichannel mosaic, screen-split,
Externí odkaz:
https://doaj.org/article/7cbd86b5cd634a9e8d2b44672bff1001
Autor:
Shih-Hao Wang, Yuwen He, Shih-Chien Chang, Tihao Chiang, Chung-Neng Wang, Wen-Hsiao Peng, Cheng-Yi Lin, Guan-Yi Lin
Publikováno v:
Journal of VLSI signal processing systems for signal, image and video technology. 41:93-110
We present a baseline MPEG-4 Advanced Video Coding (AVC) decoder based on the methodology of joint optimization of software and hardware. The software is first optimized with algorithm improvements for frame buffer management, boundary padding, conte
Publikováno v:
Journal of Visual Communication and Image Representation. 15:163-184
Octave subband coding has been used as an efficient image coding approach for various well-known standards such as MPEG-4 and JPEG-2000. Although the sub-images in the octave subband representation have low statistical correlation, the visual similar
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 14:429-440
A subsampling structure, an N-Queen lattice, for spatially decimating a block of pixels is presented. Despite its use for many applications, we demonstrate that the N-Queen lattice can be used to speed up motion estimation with nominal loss of coding
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 12:700-712
We present a fast motion estimation algorithm using only binary representation, which is desirable for both embedded system and hardware implementation with parallel architectures. The key algorithm distinction is that only the high-frequency spectru
Publikováno v:
IEEE Transactions on Consumer Electronics. 48:662-670
The MPEG-1 Layer III audio coding is most widespread digital audio format on the Internet. Its encoder is more complicated than the other layers in the MPEG-1 audio specification, where the bit allocation constitutes significant part of the total com
Publikováno v:
IEEE Transactions on Circuits and Systems for Video Technology. 12:372-385
Recently, the MPEG-4 committee has approved the MPEG-4 fine granularity scalability (FGS) profile as a streaming video tool. We propose novel techniques to improve further the temporal prediction at the enhancement layer so that coding efficiency is
Publikováno v:
IEEE Transactions on Consumer Electronics. 43:511-516
Block-based discrete cosine transform (DCT) coding has been widely adopted in image/video compression standards, such as JPEG and MPEG. Such coding will produce a noticeable artifact known as the blocking effect at very low bit rate applications. In
Publikováno v:
2007 IEEE International Symposium on Circuits & Systems; 2007, p3936-3939, 4p
Publikováno v:
2005 IEEE VLSI-TSA International Symposium on VLSI Design, Automation & Test, 2005. (VLSI-TSA-DAT); 2005, p241-244, 4p