Description:

Dr. Qi completed a second Ph.D. on Electrical and Computer Engineering while holding the faculty position at the Speech and Hearing Sciences Department of University of Arizona. He published several articles on signal processing and pattern recognition as part of his Ph.D. work. He was later jointly appointed as an Associate Professor by the Department of Electrical and Computer Engineering, where he taught digital signal processing and advanced digital signal processing.

At Qualcomm, Dr. Qi's major responsibility is on multimedia signal processing. He contributed significantly to the development of multimedia functions on the mobile platform. Most of his work, however, are proprietary (not published). Over a dozen of patents have been filed as a result of his work at Qualcomm.

Publications :

• Hunt, B., Qi, Y. , and Dekruger D., Fuzzy classification using set membership functions in the back propagation algorithm, Journal of Knowledge Engineering, 5, 62-74, 1992.


• Qi, Y. Application of a multilayer feedforward network to voiced-unvoiced-silence classifications of speech, Chinese Journal of Acoustics, 11, 167-178, 1992.


• Qi, Y. and Hunt, B., Voiced-Unvoiced-Silence classifications of speech using hybrid features and a network classifier, IEEE Trans. on Speech and Audio Processing, 1, 250-255, 1993.


• Qi, Y. and Bi, N., A multi-target approach for isolated word recognition using artificial neural network, Chinese Journal of Acoustics, 13, 160-168, 1994.


• Qi, Y. and Hunt, B., Signature verification using global and grid features, Pattern Recognition, 27, 1621-1629, 1994.


• Qi, Y. and Hunt, B., A multiresolution approach to computer verification of handwritten signatures, IEEE Trans. on Image Processing, Vol. 4, No. 6, 870-874, 1995.


• Bi, N and Qi, Y., Speech conversion and its application to alaryngeal speech enhancement, IEEE Trans. on Speech and Audio Processing, 5, 97-105 1997.

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