Auflistung nach Autor "Katsavounidis, I."
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Finger detection and hand posture recognition based on depth information
Poularakis, S.; Katsavounidis, I. (2014)In this work, we propose a novel framework for automatic finger detection and hand posture recognition, based mainly on depth information. Our method locates apex-shaped structures in a hand contour and deals efficiently ... -
A high performance and low power hardware architecture for the transform & quantization stages in H.264
Owaida, M.; Koziri, M.; Katsavounidis, I.; Stamoulis, G. (2009)In this work, we present a hardware architecture prototype for the various types of transforms and the accompanying quantization, supported in H.264 baseline profile video encoding standard. The proposed architecture ... -
Implementation of the AVS video decoder on a heterogeneous dual-core SIMD processor
Koziri, M.; Bellas, N.; Katsavounidis, I.; Zacharis, D. (2010)This paper presents the implementation of Advanced Audio and Video Standard Part 2: Video (AVS P2), the Chinese video standard, to Diamond 388VDO Video Processor, a heterogeneous dual core Tensilica SIMD processor. Through ... -
Implementation of the AVS Video Decoder on a Heterogeneous Dual-Core SIMD Processor
Koziri, M.; Zacharis, D.; Katsavounidis, I.; Bellas, N. (2011)Multi-core Application Specific Instruction Processors (ASIPs) are increasingly used in multimedia applications due to their high performance and programmability. Nonetheless, their efficient use requires extensive ... -
Investigating Wireless Sensor Network lifetime under static routing with unequal energy distribution
Xenakis, A.; Katsavounidis, I.; Stamoulis, G. (2012)In a Wireless Sensor Network (WSN) the sensed data must be gathered and transmitted to a base station where it is further processed by end users. Since that kind of network consists of low-power nodes with limited battery ... -
A low-power VLSI architecture for intra prediction in H.264
Stamoulis, G.; Koziri, M.; Katsavounidis, I.; Bellas, N. (2005)The H.264 video coding standard can achieve considerably higher coding efficiency than previous standards. The key to this high code efficiency are mainly the Intra and Inter prediction modes provided by the standard. ... -
A Multiscale Error Diffusion Technique for Digital Multitoning
Sarailidis, G.; Katsavounidis, I. (2012)Multitoning is the representation of digital pictures using a given set of available color intensities, which are also known as tones or quantization levels. It can be viewed as the generalization of halftoning, where only ... -
Sparse representations for hand gesture recognition
Poularakis, S.; Tsagkatakis, G.; Tsakalides, P.; Katsavounidis, I. (2013)Dynamic recognition of gestures from video sequences is a challenging task due to the high variability in the characteristics of each gesture with respect to different individuals. In this work, we propose a novel ...