Jer-Sen Chen

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We present a technique for computing the convolution of an image with LoG (Laplacian-of-Gaussian) masks. It is well known that a LoG of variance a can be decomposed as a Gaussian mask and a LoG of variance a1 < a. We take advantage of the specific spectral characteristics of these filters in our computation: the LoG is a bandpass filter; we can therefore(More)
As speech recognizers become more robust, they are popularly accepted as an essential component of human-computer interaction. State-of-the-art speaker-independent speech recognizers exist with word recognition error rates below 10%. To achieve even higher and robust recognition performance, multi-modal speech recognition techniques that combine video and(More)
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