Sciweavers

218 search results - page 5 / 44
» Directional Discrete Cosine Transforms for Image Coding
Sort
View
ESTIMEDIA
2004
Springer
15 years 1 months ago
Adaptive spectrum-based variable bit truncation of discrete cosine transform (DCT) for energy-efficient wireless multimedia comm
This paper presents a new adaptive scheme to reduce the computation energy of the discrete cosine transform (DCT) architecture for image/video coding. The scheme employs the noise ...
Feng Liu, Chi-Ying Tsui
ICIP
2006
IEEE
15 years 11 months ago
Selective Encryption of Human Skin in JPEG Images
In this study we propose a new approach for selective encryption in the Huffman coding of the Discrete Cosine Transform (DCT) coefficients using the Advanced Encryption Standard (...
Adrian G. Bors, José M. Rodrigues, William ...
IAJIT
2010
211views more  IAJIT 2010»
14 years 8 months ago
3D Model Retrieval Based on 3D Discrete Cosine Transform
: The content-based retrieval systems for 3D models on the Web become necessary since digital databases of 3D objects are growing. In this paper, we propose a new method to describ...
Elmustapha Ait Lmaati, Ahmed El Oirrak, Mohammed N...
ICASSP
2011
IEEE
14 years 1 months ago
Prediction of discrete cosine transformed coefficients in resized pixel blocks
Abstract— A hybrid model was developed to predict the zeroquantized discrete cosine transform (ZQDCT) coefficients for intra blocks in our previous work. However, the complicated...
Jin Li, Weiwei Chen, Moncef Gabbouj, Jarmo Takala,...
88
Voted
WCE
2007
14 years 11 months ago
Face Recognition using Discrete Cosine Transform plus Linear Discriminant Analysis
—Face recognition is a biometric identification method which among the other methods such as, finger print identification, speech recognition, signature and hand written recognit...
M. Hajiarbabi, J. Askari, S. Sadri, M. Saraee