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A variety of algorithms allows gesture recognition in video sequences. Alleviating the need for interpreters is of interest to hearing impaired people, since it allows a great degree of self-sufficiency in communicating their intent to the non-sign language speakers without the need for interpreters. State-of-the-art in currently used algorithms in this domain is capable of either real-time recognition...
Realistic binary error process models are particularly important for proper design of throughput increasing techniques, such as Forward Error Correction (FEC), Automatic Repeat Request (ARQ), hybrid ARQ or cross-layer optimization. Currently employed models are capable of producing realistic output for binary error process observed on the error control channel, however, most of them (including standard...
Error modeling is essential in the design of wireless systems, because it produces a solid, reliable and deterministic source of errors used to verify the robustness of techniques and concepts employed to achieve maximum system throughput. This paper analyzes utilization of two prominent descriptive models to real Wireless Sensor Network (WSN) traffic exhibiting non-Poisson error burst and Poisson...
We propose a fast technique for concealment of transmission errors in images. Corrupted regions are restored by texture extrapolation from the surrounding regions logically associated through image segmentation. Areas in the image containing unsharp edges or gradients, which are difficult to segment properly, are the main problem producing artefacts in the result. Therefore, our approach utilizes...
Error concealment is an error control technique capable of mitigating the error effects on multimedia using only the correctly received data. We introduce an efficient and highly scalable concealment algorithm for textured colour images. The lost area is restored by texture extrapolation from the surrounding regions logically associated on the superpixel level. With the proposed method also edges...
Indoor wireless sensor networks (WSN) with high scalability and availability are suitable for multiple applications. They can be found in a variety of modifications sensitive to both network and communication design. Proper simulation models are required in order to produce realistic transmission conditions for WSN design optimization. The presented paper documents research results of time series...
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