Tommi Huotilainen

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In this paper high-quality model-based sound synthesis of plucked string and woodwind instruments is combined with room simulation and auralization techniques. The result is a real-time virtual three-dimensional room where the listener and multiple virtual instruments can be moved. The system was designed using signal processors in a multiprocessing(More)
Image sequences produced by, e.g., electro-optical sensors are being used increasingly for continuous quality monitoring and surveillance. This letter considers the important problem of multiframe change point detection of signals with unknown dynamics. We propose a new CUSUM-based (cumulative SUM) detector for detecting noise-obscured signals in a sequence(More)
We propose a novel multi-estimate dynamic programming (DP) method for on-line detection and segmentation of significant anomalies in a video sequence. The method is based on the concept of sparsity, which means that we reduce visual features of each frame to a set of keypoints. In our linescan application this is done by extracting only the intensity(More)
Virtual audio reality environments have in recent years become popular in such fields as computer music, acoustics, multimedia, and telecommunications [1]. There are often computational constraints that lead to very simplified systems that faintly resemble the physical reality. We present a distributed expandable virtual audio reality system that can(More)
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