Jijun Zhang and Andrew Perkis, “A Media Research
Engine for Universal Multimedia Access (UMA)” Submitted to the FIRST COST
#276 WORKSHOP On Information and Knowledge Management for Integrated Media
Communication, Spain November 2001.
Andrew Perkis and Tor Halvorsen, “
Content adaptation for a streaming environment enabling Universal Multimedia
Access
”, in Proc. NORSIG2001, Trondheim 18-20 October 2001.
Eyvind Fossbakk, Pilar Manzanares, Jose L. Yago, Andrew
Perkis, “An MPEG-21 framework for
streaming media
”, in Proc. 2001 IEEE Workshop on Multimedia Signal Processing, Cannes
3-5 October, 2001.
Hallstein Lervik and Andrew Perkis, “Increased
capacity in DS-CDMA system by reusing spreading codes”, in Proc. IEEE
International Conference on Communications Technology (ICT20001), Bucharest,
4-7 June, 2001.
Tung Pham Thanh, Andrew Perkis and Frank Y. Li, “
Call Admission Control Algorithm for Multichannel Users in Hierarchical Cellular
Systems”, in Proc. IEEE 3G wireless symposium (3G’01), San Francisco,
CA. USA, May 30 - June 2, 2001.
Hallstein Lervik and Andrew Perkis, “Multirate
DS-CDMA in fading environment”, in Proc. IEEE WPMC 2000, Bangkok, November
2000, pp. 187-190
Tung Pham Thanh and Andrew Perkis, “Integration
of Radio Access system and Network”, in Proc. NORSIG 2000, June 2000
Andrew Perkis and Oscar Solano Jiménez, “
Robust image compression using reversible variable length coding
”, in Proc. IEEE VCIP2000, Perth, 21-25 June 2000
Till Halbach, Tor A. Ramstad and Andrew Perkis, “
Blockwise Mixed Fixed-length/Variable-length Coding in JPEG2000”, in
Proc. NORSIG 1999, Asker, Norway, September 1999, pp. 7-12.
Josef Noll, Per Hjalmar Lehne, Geir Øien, Andrew
Perkis, Knut Grythe, Lars Lundheim og Norvald Stol "Research and development
of a UMTS demonstrator in Norway, Presented at the BT alliance Enginneering
symposium 1999 (in confidence: BT alliance only)
A. Perkis and D. G. Cardelo "
Transmission of still images over noisy channels
", In Proc. of ISSPA’99, pp. 789-792. August 23-25, Brisbane, Australia.
Till Hallbach, Tor. A. Ramstad and Andrew Perkis,
Blockwise Mixed-Length/Fixed-Length Coding in JPEG2000
, in Proc. og NORSIG99, 9. - 11. september, 1999, Sem, Norway
T. Røsten, V. Marthinussen, T.A. Ramstad and
A.Perkis, "Filter Bank Optimization for High-Dimensional Compression of Pre-Stack
Seismic Data in Proc. IEEE ICASSP, March 1999, Phonix USA. pp:3153-3156
Andrew Perkis, Helge Coward, Tor A. Ramstad, Geir
Øien and Ilangko Balashingham,
JPEG2000 for mobile and wireless communications
In Proc. of the ACTS Mobile Communications Summit, Rhodes 8-10 June, 1998.
Andrew Perkis and Knut Grythe,
Wideband radio Access
, Invited tutorial speaker at Nordiskt radio Symposium 1998, Stockholm 19-20
October 1998.
Andrew Perkis,
Multimedia Communications: Research, Standardisation and Regulation hand-in
hand
In Proc. of Globecom'98, Sydney November 1998.
Ilangko Balashingham, Tor A. Ramstad, Michael Adams,
Faouzi Kossentini, Helge Coward, Andrew Perkis and Geir Øien,
Performance evaluation of different filterbanks in the JPEG2000 baseline
system
, in Proc. of ICIP'98, Chicago 4-7 October 1998.
Helge Coward, Andrew Perkis, Tor A. Ramstad, Geir
Øien, Ilangko Balashingham,
Robustness against channel errors in JPEG2000
, in Proc. Of NORSIG'98, June 8-11 1998, Aalborg, Denmark.
Jan Erik håkegård, Knut grythe and Andrew
Perkis, WIRAC
, in Proc. Of NORSIG'98, June 8-11 1998, Aalborg, Denmark.
A. Perkis, "Multimedia, standardisering og teknologi",
Invitert foredrag til NORSIG97, Tromsø Mai 1997.
A. Perkis and S. Bjærum, 'Segmentation based
coding of images', in Proc. NORSIG-95, Stavanger September 1995.
A. Perkis and S. Bjærum, 'Morfologisk segmentering
av bilder - Anvendelser innen bildekompresjon', in Proc NOBIM-95, Ålesund
1995.
H. Skinnemoen and A. Perkis, 'Efficient vector quantisation
of LPC parameters for noisy channels', in Proc. ICASSP´94, Adelaide,
April 1994.
H. Skinnemoen, A. Perkis and F.T. Johansen, 'MOR-VQ
Modulation Oriented VQ for speech coding over noisy channels', in Proc. ASI
NATO workshop New advances and trends in speech recognition and coding, Spain,
June 1993.
A. Perkis, 'Joint optimisation - A future design strategy
for radio communication systems', in Proc. Norwegian Signal Processing Conf.
(NORSIG-93), February 1993.
A. Perkis J. Kostogiannis, 'A robust error masking
hybrid quantisation scheme for noisy channels' In Proc. The fifth Nordic
Conference on Digital Mobile Radio (DMR V), Helsinki, Finland, pp. 331-3354,
December 1992.
A. Perkis, ´Subjective evaluation of error masking
techniques for bursty channels´, in Proc. of the European Signal Proc.
Conf. (EUSIPCO-92), Brussels, Belgium, pp. 519-522, August 1992.
A. Perkis, "A system description of speech coding
for mobile satellite communications", in Proc. Norwegian Signal Processing
Conf. (NORSIG-91), November 1991.
P. Secker, A. Perkis, ‘Joint source and channel coding
coding of Line Spectrum Pairs’, in Proc. European Speech Conf. (EUROSPEECH'91),
Genova, Italy, pp. 909-913, Sept., 1991.
D. Rowe, W. Cowley, A. Perkis, ‘A Multiband Excitation
Linear Predictive Hybrid speech coder’ in Proc. European Speech Conf. (EUROSPEECH'91),
Genova, Italy, pp. 239-243, Sept., 1991.
D. Rowe, J. Kostogiannis and A. Perkis, ‘A Speech
Processing Testbed’ in proc. Int. Radio and Electronics Engineer Conf. (IREECON),
Sydney, Australia, pp. 302-305, Sept., 1991.
J. Kostogiannis, D. Rowe, A. Perkis, and W. Cowley
‘A robust dual bit rate voice codec’ in Proc. Int. Radio and Electronics
Engineer Conf. (IREECON), Sydney, Australia, pp. 281-284, Sept., 1991.
P. Secker and A. Perkis, ‘Joint source and channel
trellis coding of a Gaussian source’ in Proc. Int. Radio and Electronics
Engineer Conf. (IREECON), Sydney, Australia, pp. 297-300, Sept., 1991.
D. Rowe, A. Perkis, ‘ Performance improvements of
the IMBE coder utilizing burst error masking techniques’, in Proc. The IEEE
workshop "Speech coding for the 1990’s", Whistler, Canada, pp. 78-79, Sept.,
1991.
A. Perkis and D. Rowe 'Quantizer design and evaluation
procedures for hybrid voice coders' in Proc. The Third Australian Conf. on
Speech Science and Technology (SST'90), Melbourne, pp. 40-45, Nov. 1990.
P. Secker and A. Perkis 'A robust speech coder incorporating
source and channel coding techniques. in proc. The Third Australian Conf.
on Speech Science and Technology (SST'90), Melbourne, pp. 45-51, Nov. 1990.
D. Rowe, A. Perkis, W.C. Cowley and J. Asenstorfer
' Error masking in a real time voice codec for mobile satellite communications'
in Proc. The Third Australian Conf. on Speech Science and Technology (SST'90),
Melbourne, pp. 498-503, Nov. 1990.
J. Kostogiannis and A. Perkis 'Evaluation of Linear
Prediction schemes for use in mobile satellite communications' in Proc. The
Third Australian Conf. on Speech Science and Technology (SST'90), Melbourne,
pp. 64-68, Nov. 1990.
L. Peng and A. Perkis 'Implementation and discussion
of the VSELP coder' in Proc. The Third Australian Conf. on Speech Science
and Technology (SST'90), Melbourne, pp. 58-63, Nov. 1990.
A. Perkis and T.S. Ng,'A robust low complexity 5.0
kbps stochastic coder for a noisy satellite channel' in Proc. IEEE region
10 Conf on Comp. and Comms. (TENCON'90), pp. 334-337, Hong Kong, Sept. 1990.
A. Perkis,'Speech coding for satellite communication;
A novel scenario' in Proc. Int. Symposium on Signal Proc. and its Appl. (ISSPA'90),
Surfers Paradise, pp. 710-713, Aug. 1990.
B. Ribbum and A. Perkis 'CELP performance using two
different satellite channel models' in Proc. Mobile Satellite Communication
Systems conference, Adelaide, pp. 1-6, Aug. 1990
A. Perkis, F.J. Paoloni, H.S Bradlow and T.S. Ng,'Video
transmission rate reduction by hybrid and interpolative coding techniques'
in Proc. Australian Comp. Science Conf. (ACSC'13), Melbourne, Feb. 1990 (abstract
only).
A. Perkis, B. Ribbum and I. J. Fannelop, 'A study
on the impact of a satellite channel on a 7.0 kbit/s CELP based coder', in
Proc. IEEE Workshop on Speech Coding, Vancover, USA, September, 1989 (Abstract
only).
I. J. Fannelop, B. Ribbum, and A. Perkis, 'Complexity
reductions of a 7.0 kbit/s CELP based speech coder', in Proc. IEEE Workshop
on Speech Coding, Vancover, USA, September, 1989 (Abstract only).
A. Perkis, B. Ribbum, 'Stochastic Multipulse Self-Excited
coder: A robust CELP coder suitable for mobile communication', in proc. The
GSM half-rate Workshop, Hersbruck, Germany, September, 1989 (Abstract only).
A. Perkis and B. Ribbum, 'A good quality low complexity
4.8 kbits/s stochastic multipulse coder', in proc. IEEE Int. Symposium on
Circuits and Systems (ISCAS '89), Portland Oregon, USA, pp. 1817-1821, May,
1989.
A. Perkis, B. Ribbum and T. Ramstad 'Improving subjective
quality in wave-form coders by the use of postfiltering', in Proc. The Second
Australian Conf. on Speech Science and Technology (SST’88), Sydney, pp. 60-66,
December, 1988.
B. Ribbum, A. Perkis and K. K. Paliwal,'Enhancing
the codebook for improving the speech quality of CELP coders', in Proc. The
Second Australian Conf. on Speech Science and Technology (SST’88), Sydney,
pp. 408-414, December, 1988.