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As part of ITS technology, to achieve quick map updates, we propose a method for automatically detecting changes in streetscapes from images captured by car-mounted omni-directional cameras. It comprises two stages; accurate alignment of a map and street images taken at various times, and detection of changes in streetscapes from the aligned data. The(More)
We have developed a hi ghly parallel and accelerated circuit simulator which produces precise results for large scale simulation. We incorporated multithreading in both the model and matrix calculations to achieve not only a factor of 10 acceleration compared to the defacto standard circuit simulator used worldwide, but also equal or exceed the performance(More)
A quadrature hybrid and a T/R selection switch of a local distribution circuit with small size and low loss are demonstrated for 60 GHz direct conversion transceivers. By applying the one-crossover parallel-line transformer and zigzag-shape capacitor, the quadrature hybrid occupies only 0.038 mm<sup>2</sup> and the insertion losses is &lt;; 1 dB in Ch. 1-4(More)
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