Based on the directional characteristic of SAD(Sum of Absolute Difference) distribution and the center-biased characteristic of motion vectors, a fast BMA(blockmatching motion estimation algorithm), DLTS(Diamond Line/...
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Recently, there are a lot research works for multimedia communication systems. Especially, the space sharing communication is one of research trends for multimedia communication. By using the space sharing technology,...
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It is well known that H.264/AVC has great advantage of coding efficiency compared with the successful prior coding standards and it can save about 50% bit-rate under the same reconstructed picture quality. But the com...
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In order to solve the precision guidance problem in television guidance missile system which is caused by time difference between the video frame used by the console and the video frame used by the guided missile. Thi...
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In order to solve the precision guidance problem in television guidance missile system which is caused by time difference between the video frame used by the console and the video frame used by the guided missile. This paper proposes a novel video frame indexing based frame select method for television guidance system. By storing previous video frames and recording their indexing numbers, the same frame can be achieved on both the console and the guided missile. Compare with common selecting method, the proposed method can generate the tracking images more precisely.
This paper presents an auxiliary model based stochastic gradient parameter estimation algorithm for multi-input output-error systems by minimizing a quadratic cost function. The basic idea is to replace the unknown va...
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Object states estimation and data association are main facets of multi-object tracking. Under complex situations, one object often grouped with others, or occluded by other objects or background, which can increase th...
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For multimedia applications, the routing algorithms should consider many Quality of Service (QoS) parameters. However, to find routes with two or more QoS parameters is an NP-hard problem. Therefore, recently many res...
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In autonomous distributed robot systems, many robots cooperate together to carry out many difficult tasks that single robots cannot realise. But, in order to cooperate together the robots should communicate with each ...
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A new frequency offset estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems was proposed by using a specially designed training symbol. Requiring only one training symbol, this algorithm ...
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A new frequency offset estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems was proposed by using a specially designed training symbol. Requiring only one training symbol, this algorithm can efficiently estimate integer frequency offset and fraction frequency offset. The timing synchronization can also be obtained by using the proposed training symbol. Simulation results show that the proposed method not only reduces the number of the training symbols but also improves the accuracy of frequency offset estimation, while comparing with conventional algorithms.
Although multifractal descirbles the singularity distribution of SE, there is no time information in the multifractal formalism, and the time-varying singularity distribu-tion indicates the spatial dynamics character ...
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