Dabrowski-Pawlowski-Marciniak-SPA2007.zip - This paper presents aspects of parallelism of computations in processing of signals using digital signal processors (DSPs) with multi-issue assembler instructions. We present general features of the contemporary DSPs with special attention paid to the VLIW architecture. In order to illustrate the multi-issue instruction technique we analyze performance of the fixed-point Blackfin processor by means of chosen typical signal processing tasks realized using VisualDSP++ 4.5 environment with Software Development Kit 2.01. Aspects of the floating-point processing are analyzed using Sharc and TigerSharc processors.,2011-03-21 15:55:20,下载9次
24_34_Marciniak-Jackowski_SPA2009.zip - This paper shows an implementation and effectiveness analysis of people tracking in video sequences using an embedded system. The system was designed in Matlab environment with the Simulink model. After optimizations this model was adapted to the embedded system, which consists of DM6437 Evaluation Module and input and output video devices. During tests we analyze influence of additional image operations for a number of processed frames.,2011-03-21 15:50:21,下载6次
23_36_Pawlowski-Borowczyk_SPA2009.zip - This paper presents an experimental system for real time tracking of moving objects. It is equipped with the analog video camera CC-5299MAFS/M mounted on a controlled turntable. A standard PC computer operating with Linux system is used. The prepared software analyzes the captured video and decides how to control the turntable and the camera. Manual system control is also possible.
The implemented algorithms are discussed in the paper in detail.,2011-03-21 15:48:15,下载3次
08-NTAV-SPA_165_Marciniak-Rochowniak-etal.zip - In this paper we propose a method for voice
activity detection (VAD) in a speech signal recorded in the
presence of noise. The so-called endpoint detection (EPD),
i.e., detection of voice activity (speech) boundaries is very
difficult if the signal is acquired in noisy environments. The
proposed VAD method uses an additional stage of wavelet
subband denoising. We compared this approach with other
standard methods i.e.: zero-crossing rate and spectral
entropy analysis. Additionally we present in this paper our
basic results illustrating the main aim of this contribution,
consisting in application of intelligent denoising strategies
to various VAD algorithms.,2011-03-21 15:45:50,下载7次
19_M-W-K-D-D_SPA2010_final.zip - This paper presents results of speaker recognition experiments using short Polish sentences. We developed and analyzed various vector quantization representations in order to first maximize identification effectiveness and second to compare VQ (vector quantization) and GMM (Gaussian mixture model) approaches. For the research and experiments we created and exploited database, containing specially prepared short speech sequences.,2011-03-21 15:40:57,下载11次