The increase in the availability of bandwidth for wireless links, network integration, and the computational power on fixed and mobile platforms at affordable costs allows nowadays for the handling of audio and video data, their quality making them suitable for medical application. These information streams can support both continuous monitoring and… (More)
In this paper, we propose, an innovative algorithm for reducing the complexity of the motion estimation (ME) module used in standard video compression applications. The idea is based on applying a motion detection algorithm for the decision of search window sizes in the motion estimation. The motion detection algorithm is based on blob coloring [D.H.… (More)
Today there are new high band requests from actual multimedia services, and efficient video coders are needed in order to obtain a sensible reduction of video streams band occupation, maintaining video quality. The new video coding standard H.264 seems to be answer to fulfill these requirements.On the other hand, the H.264 encoder complexity is largely… (More)
In this paper, the implementation of a DSP controlled AC-DC matrix converter is presented. Experimental results, obtained with a 5 kW prototype and compared with analogous results of a computer simulated model, are shown. Functional issues are discussed and design solutions proposed and implemented.
This paper describes an optimized implementation of the H.264 baseline profile encoder on the ST240 processor. The H.264 Video Coding standard offers high compression efficiency, but also requires very high computational complexity. Therefore, strongly optimized solutions are needed in order to achieve the real-time performance, especially on low-power… (More)