2008年4月2日星期三

Latest Activities

1. C.M. Liu, H.W. Hsu, Y.H. Kao, and W.C. Lee, "Spatial Parameter Decision by Dynamic Programming in Parametric Stereo Coding and MPEG Surround," Audio Engineering Society 126th Convention, May 7–10, Munich, Germany, 2009.
2. H.W. Hsu, D.P. Chen, H.F. Hsiao, and C.M. Liu, “Gram-Schmidt-based Downmixer and Decorrelator in the MPEG Surround Coding,” Audio Engineering Society 128th Convention, London, May 22- 25, 2010.
3. H.W. Hsu and C.M. Liu, "Autoregressive Modeling of Temporal/Spectral Envelopes with Finite-Length Discrete Trigonometric Transforms," IEEE Trans. on Signal Processing, vol. 58, no. 7, July, 2010, pp. 3692-3705.
4. H.W. Hsu and C.M. Liu, "Decimation-Whitening Filter in Spectral Band Replication," submit to IEEE Trans. on Audio and Speech Processing, 2010.

2008年2月17日星期日

Experiences

National Chiao Tung University Professor 1999/07 till now
National Chiao Tung University Associate Professor 1991/08 至 1999/06
UMC CPU Department 486 Design Consultant 1995/7-1995/12
ITRI Speech Recognition Consultant 1996/3-1996/6
Mitac Speech Recognition Consultant 1994/7-1997/7
Ali Audio Technology Consultant 1995/5 - 1997/1
Formosoft Multimedia Technology Consultant 1998/2 to 2000/3
InterVideo Inc Multimedia Technology Consultant 2000/4 to 2006/1
Ulead Inc. General President 2005/9 to 2006/12
Videace Technology, Founding in 2007

Publications

A、Journal Papers
1. C.M. Liu and C.W. Jen," On the design of algorithm-based fault-tolerant VLSI array processor," IEE Proc. Pt. E, vol. 136, 6, Nov., pp. 539-547, 1989.
2. C.W. Jen and C.M. Liu," Design of two-level pipelined systolic arrays and its application to image resampling," Journal of Circuits, Systems, and Computers, vol. 2, no.3, pp. 247-263, 1992.
3. C.M. Liu and C.W. Jen," A parallel adaptive algorithm for moving target detector and its VLSI array realization," IEEE Trans. Signal Processing, vol. 40, no. 11, Nov., pp. 2841- 2848, 1992.
4. J.I. Guo, C.M. Liu, and C.W. Jen, "A new systolic arrays for prime-length Discrete Cosine Transform, " IEEE Trans. Signal Processing, vol. 41, no. 1, Jan., pp. 436-442, 1993.
5. C.M. Liu and C.W. Jen, "On the design of VLSI arrays for discrete Fourier transform, " IEE Proc. Pt.G, vol.139, no. 4, Aug., pp. 541-552, 1992.
6. J.I. Guo, C.M. Liu, and C.W. Jen, "The efficient memory-based VLSI array designs for DFT and DCT, " IEEE Trans. Circuits and Systems II: Analog and Digital Signal Processing, vol. 39, no.10, Oct., pp. 723-733, 1992.
7. H.R. Lee, C.W.Jen , and C.M. Liu, "On the design automation of the memory-based VLSI architectures for FIR filters, " IEEE Trans. Consumer Electronics, vol. 39, no. 3, Aug., pp. 619-629, 1993.
8. J.I. Guo, C.M. Liu, and C.W.Jen, "A novel CORDIC-based array architecture for the multidimensional discrete Hartley Transform," IEEE Tran. on Circuits and Systems II: Analog and Digital Signal Processing, vol. 42, no. 5, May, pp. 349-355, 1995.
9. H. R. Lee, C.W.Jen, and C.M. Liu, "A new hardware efficient architecture for programmable FIR filters," IEEE Trans. on Circuits and Systems, vol. 43, no.9, Sep., pp. 637-644, 1996.
10. C.M. Liu and J.C. Liu, "A new intensity stereo coding scheme for MPEG1 Audio encoder-- Layer I & II," IEEE Trans. on Consumer Electronics, Aug., vol. 42, no. 3, pp.535-539, 1996.
11. C.M. Liu and K.G. Wu, "A modified moose estimator for tracking highly maneuvering target," Electronic Letters, 10th April, vol. 33, no. 8, pp. 673-762 1997.
12. C.M. Liu and W.J. Lee, "The design of hybrid filter bank for the psychoacoustic models in ISO/MPEG Phases I and II," IEEE Trans. on Consumer Electronics, Aug., vol. 43, no. 3, pp. 586-592, 1997.
13. C.M. Liu, J.Y. Lin, K.G. Wu, and C.N. Wang, "Objective image quality measure for block-based DCT coding," IEEE Trans. on Consumer Electronics, Aug., vol. 43, no. 3, pp. 511-516, 1997. This paper is selected as the third best paper in the IEEE Trans. on Consumer Electronics (named The Third Place Chester Sall Award).
14. C.M. Liu, C.N. Wang, and J.Y. Lin, “The new postprocessing method for the block-based DCT coding based on the convex-projection theory,” IEEE Trans. on Consumer Electronics, 1998. Aug., vol. 44, no. 3, pp. 1054-1061, 1998.
15. C.M. Liu, S.W. Lee, and W.C. Lee, “Bit allocation method for Dolby AC-3 encoder,” IEEE Trans. on Consumer Electronics, Aug., vol. 44, no. 3, pp. 883-887, 1998.
16. C.M. Liu, W.C. Lee and S.Y. Juang, “Design of the coupling schemes for the Dolby AC-3 coder in stereo coding,” IEEE Trans. on Consumer Electronics, Aug., vol. 44, no. 3, pp. 878-882, 1998.
17. C.M Liu and S.W Lee, “Transformation from 512-point transform coefficients in log domain into short domain in Dolby AC-3,” Electronics Letter, Sep., vol. 3519, pp. 1614-1615, 1999.
18. C.M Liu, C.C Chiu, and H.Y. Chang, “Design on general mandarin keyword spotters,” IEEE Trans. on Audio and Speech Processing, July, vol. 8, no. 4, pp. 483-487, 2000.
19. C.M. Liu and W.J Lee, “A unified fast algorithm for the current audio coding standards,” Journal of Audio Engineering Systems, Dec., 1999, pp. 1061-1075.
20. C.N. Wang, S.W. Yang, C.M. Liu and Tihao Jiang, “A hierarchical N-queen decimation lattice and hardware architecture for motion estimation” IEEE Transaction on Circuits and Systems for Video Technology, April, 2003, p. 429- 440
21. C.N. Wang, C.M. Liu and Tihao Jiang, "Perceptual dithering for octave subband image coding," Journal of Visual Communication and Image Representation, Apr., 2003
22. C.N. Wang, S.W. Yang, C.M. Liu, and Tihao Chiang, “A Hierarchical Decimation Lattice Based on N-Queen with An Application for Motion Estimation,” IEEE Signal Processing Letters, vol. 10, no. 8 Oct, 2003.
23. C.M. Liu, H.W. Hsu, and W.C. Lee, “Compression Artifacts in Perceptual Audio Coding,” IEEE Trans. on Audio and Speech Processing, vol. 16, no. 4, May, 2008.
24. H.W. Hsu and C.M. Liu, “Fast Radix-q and Mixed-Radix Algorithms for Type-IV DCT,” Signal Processing Letter, vol. 15, pp. 910-913, Dec., 2008.
25. H.W. Hsu and C.M. Liu, "Autoregressive Modeling of Temporal/Spectral Envelopes with Finite-Length Discrete Trigonometric Transforms," IEEE Trans. on Signal Processing, vol. 58, no. 7, July, 2010, pp. 3692-3705.2010.
26. H.W. Hsu and C.M. Liu, "Decimation-Whitening Filter in Spectral Band Replication," submit to IEEE Trans. on Audio and Speech Processing, 2010.


B. Conference Papers
1. C.W. Jen and C.M. Liu, "Two-level pipeline design for image resampling," IEEE Int'l. Conf. on ASSP, Glasgow, Scotland, pp.2441-2444, 1989
2. C.M. Liu and C.W. Jen, "Design of bit-level systolic arrays, " IEEE Int'l. Symp. on Systolic Arrays, Killarney, Ireland, pp. 439-448, 1989.
3. S.W. Hwang, C.M. Liu, and C.W. Jen, "A workbench for VLSI Array designs," Electronics Device, Material, and Circuit Technology Symposium, Hsinchu, Taiwan, 1989.
4. C.M. Liu and C.W. Jen, "Recursive computing algorithms for AR spectral estimation and Its Systolic Array Realization," IEEE Proc. of the Int'l. Conf. on Applications Specific Array Processors, Princeton, New Jersey, pp. 121-32, 1990.
5. C.M. Liu, B.S. Yung and C.W. Jen, "Parallel adaptive algorithm for moving target indicator and its VLSI array realization," IEEE Int'l. Conf. on ASSP, Albuquerque, New Mexico, U.S.A., pp. 1795-1798, 1990.
6. T.H. Huang, C.M. Liu, and C.W. Jen, "A high-level synthesizer for VLSI array architectures dedicated to digital signal processing, " IEEE Int'l. Conf. on ASSP, Toronto, Ontario, Canada, pp. 1221-1224, 1991.
7. C.M. Liu and C.W. Jen, "A new systolic array algorithm for Discrete Fourier Transform," IEEE Int'l. Symp. on CAS., Singapore, pp.2212-2215, 1991.
8. G.I. Guo, C.M. Liu, and C.W. Jen, "New systolic algorithms for prime-length Discrete Cosine Transform, " IEEE Workshop on Visual Signal Processing and Communications, Hsinchu, Taiwan, pp. 67-70, 1991.
9. C.J. Wen, C.M. Liu, and C.W. Jen, "The design of two-level pipelined systolic arrays for recursive digital filter with maximum throughput rate," IEEE Int'l Symp. on VLSI Technology, Systems and Applications, Taipei, Taiwan, pp. 317-321, 1991.
10. J.I. Guo, C.M. Liu, and C.W. Jen, "A memory-based approach to design and implement systolic arrays for DFT and DCT," IEEE Int'l. Conf. on ASSP, 1992.
11. H.C. Fu, C.M. Liu, Y.W. Tsai, and W.Z. Yuang, "A neural network approach to multiple target tracking," SPIE Optical Engineering, 1992.
12. H.C. Fu, C.M. Liu, Y.W. Tsai, and W.Z. Yuang, "A neural network approach to multiple target tracking problems," Fire Control and Radar Engineering Conference, Dec., 1992.
13. J.I. Guo, C.M. Liu, and C.W.Jen, "A CORDIC-based VLSI array for computing 2-D discrete Hartley transform," IEEE Int'l. Symp. on Circuits and Systems, Chicago, Illinois, 1993.
14. H.R. Lee , C.M. Liu and C.W. Jen, "On the design automation of the memory-based VLSI architecture for FIR filters," IEEE Int'l Conf. on Consumer Electronics, Chicago, 1993.
15. J.I. Guo, C.M. Liu, and C.W. Jen, "A two-level pipelined systolic array chip for computing the Discrete Cosine Transform, " IEEE Int'l Symp. on VLSI Tech., Systems, and Applications, May 12-14, pp. 199-203, 1993 .
16. C.M. Liu, G.K. Wu, and J-H Sheu, "A new tracking algorithm for maneuvering targets," Int'l Symp. on Communications, Hsinchu, Taiwan, Dec., 1993.
17. J.I. Guo, C.M. Liu, and C.W. Jen, "A memory-based systolic array chip for the 1D discrete cosine transform," Proc. 1993 Forth VLSI Design/CAD Workshop, Taipei, pp. 96-100, Aug. 26-28, 1993.
18. J.I. Guo, C.M. Liu, and C.W. Jen, "A novel VLSI array design for the discrete Hartley transform using cyclic convolution," IEEE Int'l Conf. on ASSP, Austria, Apr. 19 -22, Adelaide, Australia, 1994.
19. C.M. Liu, G.K. Wu, Jer-Heh Sheu, "A single Kalman filtering algorithm for maneuvering target tracking in airborne radar," IEEE Int'l Conf. on ASSP, Austria, Apr. 19 -22, Adelaide, Australia, 1994.
20. J.I. Guo, C.M. Liu, and C.W. Jen, "A general memory-based approach to design efficient VLSI arrays for the multi-dimensional discrete Hartley transform," Int'l Symp. on CAS, May., 1994.
21. C.M. Liu, H.Y. Chang, and B. Chen, "The use of tree-trellis search for speaker-independent ploysyllabic mandarin word recognition," Int'l Conf. on Computer Systems Technology for Industrial Applications, April 9-12, Hsinchu, 1996.
22. H.Y. Chang, B. Chen, C.S. Chou, and C.M. Liu, "Speaker-independent Mandarin polysyllabic word recognition," 4th Int'l Symp. on Signal Processing and Its Applications, 1996.
23. J.C. Liu and C.M. Liu, "A new intensity stereo coding scheme for MPEG1 Audio encoder-- Layer I & II," IEEE Int'l Conf. on Consumer Electronics, 1996, pp.190-191.
24. K.G. Wu and C.M. Liu, "An IMM algorithm incorporating a maneuver estimation method for tracking maneuvering targets in airborne radar," 4th Int'l Symp. on Signal Processing and Its Applications, 1996.
25. K.G. Wu and C.M. Liu, "A two stage maneuver estimation method for tracking maneuvering targets, " CIE International Conf. of Radar, 1996, Beijing.
26. C.M. Liu and W.J. Lee, "The design of hybrid filter bank for the psychoacoustic models in ISO/MPEG Phases I and II`," IEEE Int'l Conf. on Consumer Electronics, June 11-13, Chicago, pp. 208-209, 1997.
27. C.M. Liu and J.Y. Lin, " Objective image quality measure for block-based DCT coding," IEEE Int'l Conf. on Consumer Electronics, June 11-13, Chicago, pp. 172-173, 1997.
28. C.M. Liu, Y.C. Liu, H.Y. Chang, C.C. Chiu, "Vocabulary-independent keyword spotters in polysyllabic mandarin speech recognition," Int'l Conf. on Computer Systems Technology for Industrial Applications, April 23-25, Hsinchu, Taiwan, 1997.
29. C.M. Liu, and H.Y. Chang, "A fast Viterbi-based algorithm for finding the exact N-best sentence hypotheses," Int'l Conf. on Computer Systems Technology for Industrial Applications, April 23-25, Hsinchu, Taiwan, 1997.
30. C.M. Liu, and C.N. Wang, " On the perceptual interband correlation for octave subband coding," Int'l Symp. on Circuits and Systems, 1998.
31. C.M. Liu and W.J Lee, “A unified fast algorithm for the current audio coding standards,” AES Conference, 1998.
32. C-M Liu, C.N. Wang, and J.Y. Lin, “The new postprocessing method for the block-based dct coding based on the convex-projection theory,” IEEE Int’l Conf. on Consumer Electronics, 1998.
33. C.M. Liu, S.W. Lee, and W.C. Lee, “Bit allocation method for Dolby ac-3 encoder,” IEEE Int’l Conf. on Consumer Electronics, 1998.
34. C.M. Liu, W.J. Lee and S.Y. Juang, “ Design of the coupling schemes for the Dolby ac-3 coder in stereo coding,” IEEE Int’l Conf. on Consumer Electronics, 1998.
35. C.M. Liu, C.C. Chen, W.C. Lee, and S.W. Lee, “A Fast Bit Allocation Method for MPEG Layer III,” IEEE Int’l Conf. on Consumer Electronics, 1999.
36. C.N. Wang, C.M. Liu, and Tihao Chiang “Improved mpeg-4 visual texture coding using perceptual dithering for transparent image coding,” in Proc. of The Second IEEE Pacific-Rim Conference On Multimedia, Beijing, Oct. 24-26, 2001, pp. 134-141.
37. S.W. Yang, C.N. Wang, C.M. Liu, and T. Chiang, “Fast motion estimation using N-queen pixel decimation,” in Proc. The Second IEEE Pacific-Rim Conf. On Multimedia, Beijing, Oct. 24-26, 2001.
38. C.M. Liu, W.J. Lee, R. S. Hong, “A new critirion and associated bit allocation method for current audio coding standards,” Proc. of the 5th Int. Conf. o­n Digital Audio Effects, Hamburg, Germany, Sep. 26-28, 2002.
39. W.J. Lee, C.H. Yang, C.M. Liu, and J.I. Guo, “Perceptual Convolution for Reverberation,” 115th AES Convention New York, USA, Oct. 10-13, 2003.
40. C.M. Liu, W.J. Lee, and H.W. Hsu, “Audio Bandwidth Extension by Linear Extrapolation,” 115th AES Convention New York, NY, USA, Oct. 10-13, 2003.
41. W.J. Lee, C.M. Liu, C.H. Yang, and J.I. Guo, “Fast Perceptual Convolution for Room Reverberation,” Proc. of the 6th Int. Conference on Digital Audio Effects (DAFX-03), London, UK, September 8-11, 2003.
42. C.M. Liu, W.J. Lee, and Y.H. Hsiao, “M/S Coding Based on Bandwidth-Proportional Noise-Shaping,” Proc. of the 6th Int. Conference on Digital Audio Effects (DAFX-03), University of London, September 8-11, 2003.
43. C.M. Liu, W.J. Lee, and C.T. Chien, “Bit Allocation for Advanced Audio Coding Using Bandwidth-Proportional Noise-Shaping Criterion,” Proc. of the 6th Int. Conference on Digital Audio Effects (DAFX-03), University of London, September 8-11, 2003.
44. C.M. Liu, W.J. Lee, and H.W. Hsu, “Audio Bandwidth Extension by Linear Extrapolation,” Proc. of the 6th Int. Conference on Digital Audio Effects (DAFX-03), University of London, September 8-11, 2003.
45. W.J. Lee, C.H. Yang, C.M. Liu, and J.I. Guo, “Fast Perceptual Convolution for the Room Reverberation,” Proc. of the 6th Int. Conference on Digital Audio Effects (DAFX-03), University of London, September 8-11, 2003.
46. Han-Wen Hsu, Chi-Min Liu, and Wen-Chieh Lee, "Audio Patch Method in Audio Decoders-- MP3 and AAC," Audio Engineering Society 116th Convention, Berlin, Germany, May 8~11, 2004.
47. Chi-Min Liu, Wen-Chieh Lee, and Tzu-Wen Chang," The Efficient Temporal Noise Shaping Method," Audio Engineering Society 116th Convention, Berlin, Germany, May 8~11, 2004.
48. Chi-Min Liu, Wen-Chieh Lee, Chung-Han Yang, Kang-Yan Peng, Ting Chiou, Tzu-Wen Chang, Yu-Hua Hsiao, Hen-Wen Hue, and Chu-Ting Chien, "Design of AAC Encoders," Audio Engineering Society 117th Convention, San Francisco, USA, Oct. 28~31, 2004.
49. Han-Wen Hsu, Chi-Min Liu, Wen-Chieh Lee, and Zheng-Wen Li, "Audio Patch Method in MPEG-4 HE-AAC Decoder," Audio Engineering Society 117th Convention, San Francisco, USA, Oct. 28~31, 2004.
50. Chi-Min Liu, Li-Wei Chen, Ming-Ton Su, Wen-Chieh Lee, Chung-Han Yang, Yu-Hua Hsiao, Zheng-Wen Li, and Chu-Ting Chien, "Efficient Bit Reservoir Design for MP3 and AAC," Audio Engineering Society 117th Convention, San Francisco, USA, Oct. 28~31, 2004
51. Chi-Min Liu, Li-Wei Chen, Han-Wen Hsu, Wen-Chieh Lee, “Bit Reservoir Design for HE-AAC,” Audio Engineering Society 118th Convention, Barcelona, Span, May 28-31, 2005
52. Kan-Chun Lee, Chung-Han Yang, Han-Wen Hsu, Wen-Chieh Lee, Chi-Min Liu, Tzu-Wen Chang, “Design of Time-Frequency Stereo Parameter Sets for Parametric HE-AAC,” Audio Engineering Society 119th Convention, New York, Oct. 7-10, 2005
53. Han-Wen Hsu, Yung-Cheng Yang, Chi-Min Liu, and Wen-Chieh Lee, “Design for High Frequency Adjustment Module in MPEG-4 HEAAC Encoder based on Linear Prediction Method,” Audio Engineering Society 120th Convention, Paris, May. 20-23, 2006
54. Han-Wen Hsu, Chi-Min Liu, Wen-Chieh Lee, “Fast Complex Quadrature Mirror Filterbanks for MPEG-4 HE-AAC,” Audio Engineering Society 121th Convention, Moscone Convention Center, San Francisco, CA, USA, Oct. 5-8, 2006.
55. Chi-Min Liu, Han-Wen Hsu, Chung-Han Yang, Kan-Chun Lee, Shou-Hung Tang, Yung-Cheng Yang, Wen-Chieh Lee, “Compression Artifacts in Perceptual Audio Coding,” Audio Engineering Society 121th Convention, Moscone Convention Center, San Francisco, CA, USA, Oct. 5-8, 2006.
56. Chung-Han Yang, Han-Wen Hsu, Kan-Chun Lee, Shou-Hung Tang, Yung-Cheng Yang, Chia-Ming Chang, Chi-Min Liu, Wen-Chieh Lee, “Design of HE-AAC Version 2 Encoder,” Audio Engineering Society 121th Convention, Moscone Convention Center, San Francisco, CA, USA, Oct. 5-8, 2006.
57. Han-Wen Hsu, Cheng-Lun Hu, Chi-Min Liu, and Wen-Chieh Lee, “On the Design of Low Power MPEG-4 HE-AAC Encoder,” Audio Engineering Society 122nd Convention, Vienna, May 5-8, 2007
58. Han-Wen Hsu, Hsin-Yao Tseng, Chi-Min Liu, Wen-Chieh Lee, and Chung-Han Yang, “High Quality, Low Power QMF Bank Design for SBR, Parametric Coding, and MPEG Surround Decoders,” Audio Engineering Society 122nd Convention, Vienna, May 5-8, 2007
59. Chi-Min Liu, Han-Wen Hsu, Chung-Han Yang, and Wen-Chieh Lee, “Low-Power MPEG-4 HE-AAC Version-2 Encoder,” Audio Engineering Society 124th Convention, May 17–20, Amsterdam, Netherlands, 2008.
60. Chi-Min Liu, Chung-Han Yang, Han-Wen Hsu, and Wen-Chieh Lee, “Design of Framing in MPEG Surround Based on Dynamic Programming Algorithm,” Audio Engineering Society 124th Convention, May 17–20, Amsterdam, Netherlands, 2008.
61. C.M. Liu, H.W. Hsu, Y.H. Kao, and W.C. Lee, "Spatial Parameter Decision by Dynamic Programming in Parametric Stereo Coding and MPEG Surround," Audio Engineering Society 126th Convention, May 7–10, Munich, Germany, 2009.
62. H.W. Hsu, D.P. Chen, H.F. Hsiao, and C.M. Liu, “Gram-Schmidt-based Downmixer and Decorrelator in the MPEG Surround Coding,” Audio Engineering Society 128th Convention, London, May 22-25, 2010.


C. BOOK
1. C.M. Liu and W.H.Chang, “Audio Coding Standards,” A chapter for the book “Handbook of Multimedia Communication,” Academic Press, 2000.

D. Patents
1. Unified recursive decomposition architecture for cosine modulated filter banks, C.M. Liu and Wen-Chieh Lee, US. Patents 6,119,080
2. Novel N-Queen Decimation Lattices for Fast Motion Estimation, Taiwan and USA, IAM02077
3. Method and device for down mixing compressed audio bit stream having multiple audio channels, US6141645, Chi-Min Liu, Szu-Wei Lee, Wen-Chieh Lee.
4. 多聲道壓縮音頻位元流減少聲道混音之方法與元件, TW 87115665, 劉啟民 李思瑋 李文傑
5. 實施餘弦調變濾波器層的單一化架構, TW 08711247, 劉啟民 李文傑
6. Method and Architecture of digital CODING for transmitting and packing audio signals, 劉啟民 李文傑, Taiwan Patent Granted
7. C.M Liu and W.C. Lee, "Method and Architecture of digital CODING for transmitting and packing audio signals," German Patent No. 10310758.
8. Method for starting a temporal noise shaping in the audio compression, US patent pending
9. Method of patching the audio after decoding, US patent pending
10. Method of Mid-Side coding in the Audio, US patent pending
11. 改善音訊解碼品質之系統及其方法, TW patent pending
12. 補償音訊高頻之系統及其方法, TW patent pending