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CORR
2007
Springer
93views Education» more  CORR 2007»
8 years 8 months ago
Type-IV DCT, DST, and MDCT algorithms with reduced numbers of arithmetic operations
We present algorithms for the type-IV discrete cosine transform (DCT-IV) and discrete sine transform (DST-IV), as well as for the modified discrete cosine transform (MDCT) and it...
Xuancheng Shao, Steven G. Johnson
DEXA
2008
Springer
154views Database» more  DEXA 2008»
8 years 10 months ago
Approximate Range-Sum Queries over Data Cubes Using Cosine Transform
In this research, we propose to use the discrete cosine transform to approximate the cumulative distributions of data cube cells' values. The cosine transform is known to have...
Wen-Chi Hou, Cheng Luo, Zhewei Jiang, Feng Yan, Qi...
ISCAS
1993
IEEE
115views Hardware» more  ISCAS 1993»
9 years 16 days ago
Improved Chen-Smith image coder
An image compression system based on transform coding and zonal sampling is presented. It is based on the wellknown Chen-Smith coder, but with an improved technique for transform ...
Eduardo M. Rubino, Henrique S. Malvar, Ricardo L. ...
PG
1997
IEEE
9 years 18 days ago
Illuminating image-based objects
In this paper, we present a new scheme of data representation for image-based objects. It allows the illumination to be changed interactively without knowing any geometrical infor...
Tien-Tsin Wong, Pheng-Ann Heng, Siu-Hang Or, Wai-Y...
ISCAS
1999
IEEE
134views Hardware» more  ISCAS 1999»
9 years 21 days ago
Low power DCT implementation approach for VLSI DSP processors
This paper presents an algorithm for the low power implementation of the Discrete Cosine Transform on Single multiplier CMOS DSPs. The algorithm reduces power by a combination of ...
S. Masupe, T. Arslan
HT
2000
ACM
9 years 23 days ago
Automatically linking multimedia meeting documents by image matching
We describe a way to make a hypermedia meeting record from multimedia meeting documents by automatically generating links through image matching. In particular, we look at video r...
Patrick Chiu, Jonathan Foote, Andreas Girgensohn, ...
IPPS
2000
IEEE
9 years 24 days ago
A Novel Superscalar Architecture for Fast DCT Implementation
This paper presents a new superscalar architecture for fast discrete cosine transform (DCT). Comparing with the general SIMD architecture, it speeds up the DCT computation by a fac...
Zhang Yong, Min Zhang
ISMIS
2003
Springer
9 years 1 months ago
Traffic Sign Recognition in Disturbing Environments
Traffic sign recognition is a difficult task if we aim at detecting and recognizing signs in images captured from unfavorable environments. Complex background, weather, shadow, and...
Hsiu-Ming Yang, Chao-Lin Liu, Kun-Hao Liu, Shang-M...
FPL
2003
Springer
146views Hardware» more  FPL 2003»
9 years 1 months ago
Domain-Specific Reconfigurable Array for Distributed Arithmetic
Distributed Arithmetic techniques are widely used to implement Sum-of-Products computations such as calculations found in multimedia applications like FIR filtering and Discrete Co...
Sami Khawam, Tughrul Arslan, Fred Westall
ADAEUROPE
2004
Springer
9 years 1 months ago
Vector Processing in Ada
Abstract. To handle signal processing algorithms such as the Fast Fourrier Transform (FFT) or the Discrete Cosine Transform (DCT) system designers have traditionally resorted to sp...
Franco Gasperoni
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