A multiple image hiding method for one secret image is proposed in this paper First, different bit planes of a secret image are hided into different bit planes of those different open images by the technique of bit pl...
详细信息
ISBN:
(纸本)0769524052
A multiple image hiding method for one secret image is proposed in this paper First, different bit planes of a secret image are hided into different bit planes of those different open images by the technique of bit plane analysis. Second, employing image fusion method. a group of new hiding images is obtained, and then we get a new image by taking the "Exclusive-NOR" operation on these images. the final hiding result is obtained by hiding the image obtained in above step into certain open image.
Extracting thread-level parallelism, as well as instruction-level one, is greatly expected for modern microprocessors. Speculative multithreading is one of the most hopeful candidates, although, its performance improv...
详细信息
ISBN:
(纸本)0769524052
Extracting thread-level parallelism, as well as instruction-level one, is greatly expected for modern microprocessors. Speculative multithreading is one of the most hopeful candidates, although, its performance improvement depends on prediction accuracy. On the other hand, profiling techniques can accelerate programs since it can reflect the programs' actual behavior this paper focuses our discussion on utilizing path-based profiling results in improving speculative multithreaded codes. Programs have many conditional branches thus many possible paths arise, however actually executed paths are very limited. thus we show that most frequent two paths are sufficient candidates for prediction and speculation, and we present a novel speculation method, two-path limited speculation. Furthermore, we present a simple path predictor based on two level branch predictor Analytical and trace-driven evaluation results show the effectiveness of the proposed method.
Discrete Fourier transform (DFT) has many applications in digital signal and image processing and other scientific and technological domains, but its time complexity of direct computation is O(n2), limiting greatly it...
详细信息
A kind of negotiation policy is proposed for the allocation problem solved by agent-based system in distributed manufacturing environment, in which subtasks in the same task have in-tree precedence constraints and fle...
详细信息
Reconfigurable computing (RC) is the presence of hardware that can be reconfigured to implement specific functionality more suitable for specially tailored hardware than on a simple uniprocessor [1]. Although the conc...
详细信息
this work describes the proposal of a set mechanisms to be applied in distributed component-based systems to allow the development of real-time applications capable of offering dynamic guarantee for clients its. the p...
详细信息
ISBN:
(纸本)078039402X
this work describes the proposal of a set mechanisms to be applied in distributed component-based systems to allow the development of real-time applications capable of offering dynamic guarantee for clients its. the proposal aims to make the application server able to provide service completion according to all clients imposed timing constraints or the immediate request rejection. To implement these mechanisms, we use an acceptance test at bind rime to filter services requests. the acceptance test determines which service request will be executed, based on the system capacity and current load providing therefore, dynamic guarantee for all the provided services.
Internet computing and Grid technologies promise to change the way we tackle complex problems. Harnessing these new technologies effectively, it will transform scientific disciplines ranging from high-energy physics t...
详细信息
ISBN:
(纸本)0769524052
Internet computing and Grid technologies promise to change the way we tackle complex problems. Harnessing these new technologies effectively, it will transform scientific disciplines ranging from high-energy physics to life sciences. this paper describes a metropolitan-scale Grid computing platform named TIGER Project (standing for Taichung Integrating Grid Environment and Resource), which basically interconnects universities and high schools' cluster computing resources and sharing available resources among them, for investigations in system technologies and high performance applications. this novel project shows the viability of implementation of such project in a metropolitan city.
Wireless sensor networks (WSNs) are important for a number of strategic applications. Target localization is an important task in WSNs. In this paper, a distributed and cooperative target localization algorithm in wir...
详细信息
this paper proposes a distributedparallel processing of Queen Ant Strategy named "ASqueen" which imitated an ant society where a queen ant governs. It is noted that the proposed processing method achieves &...
详细信息
BitTorrent is a popular, open-source content distribution system that is conducive for distribution of large-volume files. In this paper, we first model the parallel downloading problem as directed graph and discuss p...
详细信息
暂无评论