A novel hardware algorithm, architecture and an optimization technique for residue multipliers are introduced in this paper. The proposed architecture exploits certain properties of the bit products to achieve low-com...
详细信息
A novel hardware algorithm, architecture and an optimization technique for residue multipliers are introduced in this paper. The proposed architecture exploits certain properties of the bit products to achieve low-complexity implementation via a set of introduced theorems that allow the definition of a graph based design methodology. In addition the proposed multiplier employs the Canonic Signed Digit (CSD) encoding to minimize the number of bit products required to be processed. Performance data reveal that the introduced architecture achieves area/spl times/time complexity reduction of up to 55%, when compared to the most efficient previously reported design.
In many applications the image registration task turns out to be a fundamental prerequisite for any further processing and analysis. In the proposed paper a new efficient technique is presented, appropriate for regist...
详细信息
In many applications the image registration task turns out to be a fundamental prerequisite for any further processing and analysis. In the proposed paper a new efficient technique is presented, appropriate for registering images which are translated and rotated versions of a reference image. The technique consists of two main parts: an efficiently implemented prewhitening part, and an iterative part which yields the unknown displacements after a few iterations. The cross-correlation operations involved in the iterative part are performed efficiently via a new scheme based on a proper partitioning of the images and the use of the FFT. Note that this efficient scheme is also applicable to the conventional spatial cross-correlation method. The new registration technique exhibits a superior performance as compared to the conventional cross-correlation method.
In this paper we discuss our work on plan management in the Autominder cognitive orthotic system. Autominder is being designed as part of an initiative on the development of robotic assistants for the elderly. Automin...
详细信息
Video editing is the work to produce the final videos with certain duration by finding and selecting appropriate shots from the material videos and connecting them. In order to produce the excellent videos, this proce...
详细信息
Presented theoretical paper concerns the investigation of SiGeC/Si heterojunction by the Grazing-angle Incidence X-ray Diffraction (GIXD) method. We consider a possibility in principal of the GIXD by the specific long...
详细信息
Presented theoretical paper concerns the investigation of SiGeC/Si heterojunction by the Grazing-angle Incidence X-ray Diffraction (GIXD) method. We consider a possibility in principal of the GIXD by the specific long-range harmonic variations of the germanium and carbon compositions in the thin SiGeC layer. Evaluation of the theoretically calculated coherent part of x-radiation scattered by the SiGeC layer points the way to the experimental direct investigations of the long-period structured intermediate transformation states of SiGeC layer that emerge owing to inhomogeneity of the strain field along the heterojunction surface.
Video editing is the work to produce the final videos with certain duration by finding and selecting appropriate shots from the material videos and connecting them. In order to produce the excellent videos, this proce...
详细信息
Video editing is the work to produce the final videos with certain duration by finding and selecting appropriate shots from the material videos and connecting them. In order to produce the excellent videos, this process is generally conducted according to the special rules called "video grammar". In this paper, we propose an intelligent support system for the video editing where metadata are extracted automatically and then the video grammars are applied to the extracted metadata.
Video editing is the work to produce the final videos with certain duration by finding and selecting appropriate shots from the material videos and connecting them. In order to produce the excellent videos, this proce...
详细信息
We consider a general n × n MIMO system excited by unobservable inputs that are spatially independent, cyclostationary with unknown statistics. We provide a set of conditions under which the system is uniquely id...
详细信息
We consider a general n × n MIMO system excited by unobservable inputs that are spatially independent, cyclostationary with unknown statistics. We provide a set of conditions under which the system is uniquely identifiable based on second-order frequency-domain correlations of the system output. Such a MIMO problem appears in many applications, such as multi-user communications and separation of competing speakers.
In this paper, a new technique for watermarking of MPEG compressed video streams is proposed. The watermarking scheme operates directly in the domain of MPEG multiplexed streams. Perceptual models are used during the ...
详细信息
In this paper, a new technique for watermarking of MPEG compressed video streams is proposed. The watermarking scheme operates directly in the domain of MPEG multiplexed streams. Perceptual models are used during the embedding process in order to preserve the quality of the video. The watermark is embedded in the compressed domain and is detected without the use of the original video sequence. Experimental evaluation demonstrates that the proposed scheme is able to withstand a variety of attacks. The resulting watermarking system is very fast and reliable, and is suitable for copyright protection and real-time content authentication applications.
We study the problem of allocating optical bandwidth to sets of communication requests in all–optical networks that utilize Wavelength Division Multiplexing (WDM). WDM technology establishes communication between pai...
详细信息
暂无评论