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Research Output 1900 2019

1900
Image coding
Decoding
1992
7 Citations (Scopus)

An analysis/synthesis model for the human visual system based on subspace decomposition and multirate filter bank theory

Karam, L., Jan 1 1992, Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis. Institute of Electrical and Electronics Engineers Inc., p. 559-562 4 p. 274117. (Proceedings of the IEEE-SP International Symposium on Time-Frequency and Time-Scale Analysis).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Filter banks
Decomposition
Processing
Image processing
1993
17 Citations (Scopus)

Learning signals and systems with Mathematica

Evans, B. L., Karam, L., West, K. A. & McClellan, J. H., Feb 1993, In : IEEE Transactions on Education. 36, 1, p. 72-78 7 p.

Research output: Contribution to journalArticle

Students
Convolution
Algebra
learning
student
1994
13 Citations (Scopus)

Multiple exchange Remez algorithm for complex FIR filter design in the Chebyshev sense

Karam, L. & McClellan, J. H., 1994, Proceedings - IEEE International Symposium on Circuits and Systems. IEEE, Vol. 2. p. 517-520 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
Chebyshev approximation
Approximation algorithms
1995
135 Citations (Scopus)

Complex chebyshev approximation for FIR filter design

Karam, L. & McClellan, J. H., Mar 1995, In : IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing. 42, 3, p. 207-216 10 p.

Research output: Contribution to journalArticle

Chebyshev approximation
FIR filters
Approximation algorithms
Set theory
Impulse response
1996

Chroma coding for video at very low bit rates

Karam, L. & Podilchuk, C., 1996, IEEE International Conference on Image Processing. Anon (ed.). Los Alamitos, CA, United States: IEEE, Vol. 1. p. 562-565 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Luminance
Color
Image coding
3 Citations (Scopus)

Design of complex multi-dimensional FIR filters by transformation

Karam, L., 1996, IEEE International Conference on Image Processing. Anon (ed.). Los Alamitos, CA, United States: IEEE, Vol. 1. p. 573-575 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
5 Citations (Scopus)

Design of optimal digital FIR filters with arbitrary magnitude and phase responses

Karam, L. & McClellan, J. H., 1996, Proceedings - IEEE International Symposium on Circuits and Systems. IEEE, Vol. 2. p. 385-388 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
Digital filters
Specifications
8 Citations (Scopus)

Efficient design of families of FIR filters by transformation

Karam, L. & McClellan, J. H., 1996, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, Vol. 3. p. 1359-1362 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
filters

Optimal digital fir filter design

Karam, L. & McClellan, J. H., 1996, In : IEEE Transactions on Signal Processing. 44, 11, p. 2918 1 p.

Research output: Contribution to journalArticle

Digital filters
1 Citation (Scopus)

Performance of complex Chebyshev approximation in delay-root-Nyquist filter design

Yardim, A., Karam, L., McClellan, J. H. & Cain, G. D., 1996, Proceedings - IEEE International Symposium on Circuits and Systems. IEEE, Vol. 2. p. 169-172 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chebyshev approximation
Communication
1997
22 Citations (Scopus)

APIC: Adaptive perceptual image coding based on subband decomposition with locally adaptive perceptual weighting

Hontsch, I. & Karam, L., 1997, IEEE International Conference on Image Processing. Los Alamitos, CA, United States: IEEE Comp Soc, Vol. 1. p. 37-40 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Pixels
Decomposition
Image compression
25 Citations (Scopus)

Efficient design of digital filters for 2-d and 3-d depth migration

Karam, L., 1997, In : IEEE Transactions on Signal Processing. 45, 4, p. 1036-1044 9 p.

Research output: Contribution to journalArticle

Digital filters
Extrapolation
1 Citation (Scopus)

Locally adaptive perceptual quantization without side information for compression of visual data

Hontsch, I. & Karam, L., 1997, Conference Record / IEEE Global Telecommunications Conference. Anon (ed.). Piscataway, NJ, United States: IEEE, Vol. 2. p. 1042-1046 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Quantization (signal)
Data compression
Image compression
Adaptive algorithms
Entropy

Multidimensional FIR filter design by transformation

Karam, L., 1997, In : IEEE Transactions on Signal Processing. 45, 9, p. 2405 1 p.

Research output: Contribution to journalArticle

FIR filters
Polynomials
Frequency response

On the design of multidimensional FIR filters by transformation

Karam, L., 1997, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Anon (ed.). IEEE, Vol. 3. p. 2157-2160 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
Polynomials
filters
Frequency response
polynomials
18 Citations (Scopus)

Perceptually tuned embedded zerotree image coder

Hontsch, I., Karam, L. & Safranek, R. J., 1997, IEEE International Conference on Image Processing. Los Alamitos, CA, United States: IEEE Comp Soc, Vol. 1. p. 41-44 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Mean square error
Image coding
Wavelet transforms
1998
1 Citation (Scopus)

Automatic detection and extraction of perceptually significant visual features

Black, J. & Karam, L., 1998, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Farques, M. P. & Hippenstiel, R. D. (eds.). IEEE Comp Soc, Vol. 1. p. 315-319 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Masks
4 Citations (Scopus)

DWT-based perceptually lossless color image compression architecture

Marino, F., Acharya, T. & Karam, L., 1998, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Matthews, M. B. (ed.). IEEE Comp Soc, Vol. 1. p. 149-153 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image compression
Color
Throughput
4 Citations (Scopus)

Locally-adaptive image coding based on a perceptual target distortion

Hontsch, I. & Karam, L., 1998, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, Vol. 5. p. 2569-2572 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
coding
masking
coders
thresholds
2 Citations (Scopus)

Locally-adaptive perceptual quantization without side information for DCT coefficients

Hontsch, I. S. & Karam, L., 1998, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Farques, M. P. & Hippenstiel, R. D. (eds.). IEEE Comp Soc, Vol. 2. p. 995-999 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Entropy
1999

Channel-optimized hyperspectral image coding

Abousleman, G. P., Lam, T. T. & Karam, L., 1999, Proceedings of SPIE - The International Society for Optical Engineering. Society of Photo-Optical Instrumentation Engineers, Vol. 3717. p. 92-103 12 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

coders
Image coding
coding
Channel coding
Degradation

Channel-optimized transform coding of imagery

Abousleman, G. P., Lam, T. T. & Karam, L., 1999, Proceedings of SPIE - The International Society for Optical Engineering. Society of Photo-Optical Instrumentation Engineers, Vol. 3716. p. 80-90 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

imagery
coders
coding
Channel coding
Image coding
32 Citations (Scopus)

Chebyshev digital FIR filter design

Karam, L. & McClellan, J. H., Jul 1999, In : Signal Processing. 76, 1, p. 17-36 20 p.

Research output: Contribution to journalArticle

FIR filters
Digital filters
MATLAB
Signal processing
Specifications

Perceptually-tuned image coder with channel-optimized trellis-coded quantization

Lam, T. T., Abousleman, G. P. & Karam, L., 1999, IEEE International Conference on Image Processing. Los Alamitos, CA, United States: IEEE, Vol. 1. p. 421-425 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wavelet decomposition
Channel coding
Image coding
Entropy
5 Citations (Scopus)

Robust image coding using perceptually-tuned channel-optimized trellis-coded quantization

Lam, T. T., Karam, L. & Abousleman, G. P., 1999, Midwest Symposium on Circuits and Systems. Piscataway, NJ, United States: IEEE, Vol. 2. p. 1131-1134 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Channel coding
Image coding
Tuning

Scalable, subband-based video coding with a locally-adaptive perceptual distortion measure

Hontsch, I. S. & Karam, L., 1999, Conference Record of the Asilomar Conference on Signals, Systems and Computers. IEEE, Vol. 2. p. 1453-1457 5 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Image coding
10 Citations (Scopus)

Two-dimensional FIR filter design by transformation

Karam, L., 1999, In : IEEE Transactions on Signal Processing. 47, 5, p. 1474-1478 5 p.

Research output: Contribution to journalArticle

FIR filters
1 Citation (Scopus)

Wavelet-based image coder with channel-optimized trellis-coded quantization

Lam, T. T., Abousleman, G. P. & Karam, L., 1999, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, Vol. 6. p. 3201-3204 4 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

coders
Channel coding
Image coding
coding
optimization
2000
43 Citations (Scopus)

An efficient embedded zerotree wavelet image codec based on intraband partitioning

Liu, Z. & Karam, L., 2000, IEEE International Conference on Image Processing. Vol. 3.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Wavelet transforms
7 Citations (Scopus)

Canonic signed digit FIR filter design

Hasan, Y. M., Karam, L., Falkinburg, M., Helwig, A. & Ronning, M., 2000, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. p. 1653-1656 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
Adders
Digital filters
Software packages
Hardware

Channel-optimized trellis-coded quantization for channels with memory

Giguet, D., Abousleman, G. P. & Karam, L., 2000, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. p. 1087-1091 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Data storage equipment
Error probability

Error-resilient video coding and application to telemedicine

Liu, Z., Karam, L., Abousleman, G. P., Key, T. & Razzouk, B., 2000, Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems. Vol. 1. p. 533-536 4 p. 911595

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Telemedicine
Image coding
Channel coding
Communication
Developing countries

Error-resilient video coding with channel-optimized trellis-coded quantization

Liu, Z., Abousleman, G. P. & Karam, L., 2000, 2000 IEEE Wireless Communications and Networking Conference. p. 202-206 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Motion compensation
Channel coding
Entropy

Error-robust video coding with channel-optimized trellis-coded quantization

Liu, Z., Abousleman, G. P. & Karam, L., 2000, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. p. 1389-1393 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Bit error rate
Motion compensation
Channel coding
Entropy
27 Citations (Scopus)

Image coding with robust channel-optimized trellis-coded quantization

Lam, T. T., Abousleman, G. P. & Karam, L., Jun 2000, In : IEEE Journal on Selected Areas in Communications. 18, 6, p. 940-951 12 p.

Research output: Contribution to journalArticle

Image coding
Channel coding
Bit error rate
103 Citations (Scopus)

Locally adaptive perceptual image coding

Höntsch, I. & Karam, L., Sep 2000, In : IEEE Transactions on Image Processing. 9, 9, p. 1472-1483 12 p.

Research output: Contribution to journalArticle

Image Coding
Masking
Image compression
Image coding
Quantization
88 Citations (Scopus)

Morphological text extraction from images

Hasan, Y. M. Y. & Karam, L., Nov 2000, In : IEEE Transactions on Image Processing. 9, 11, p. 1978-1983 6 p.

Research output: Contribution to journalArticle

Thresholding
Skew
Text
2 Citations (Scopus)

Multiple description channel-optimized trellis-coded quantization

Lam, T. T., Abousleman, G. P. & Karam, L., 2000, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. IEEE, Vol. 5. p. 2645-2648 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bit error rate
Packet loss
Tensors
Communication systems
counters
2 Citations (Scopus)

Prediction of the quality of JPEG-compressed color images based on the SCIELAB metric

Fahmy, G. F. & Karam, L., 2000, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. p. 1054-1057 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Color
Image compression
Image quality
5 Citations (Scopus)

Wavelet-based perceptually lossless coding of R-G-B images

Marino, F., Acharya, T. & Karam, L., 2000, In : Integrated Computer-Aided Engineering. 7, 2, p. 117-134 18 p.

Research output: Contribution to journalArticle

Wavelets
Compression
Coding
Digital cameras
Application specific integrated circuits
2001
15 Citations (Scopus)

Canonic signed digit Chebyshev FIR filter design

Hasan, Y. M., Karam, L., Falkinburg, M., Helwig, A. & Ronning, M., Jun 2001, In : IEEE Signal Processing Letters. 8, 6, p. 167-169 3 p.

Research output: Contribution to journalArticle

Chebyshev filters
Filter Design
FIR filters
Impulse Response
Signed
2 Citations (Scopus)

Coding of digital imagery for transmission over multiple noisy channels

Channappayya, S. S., Abousleman, G. P. & Karam, L., 2001, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3. p. 1729-1732 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Multiplexing
imagery
Interpolation
coding

Image coding for transmission over multiple noisy channels using punctured convolutional codes and trellis-coded quantization

Channappayya, S. S., Abousleman, G. P. & Karam, L., 2001, IEEE International Conference on Image Processing. Vol. 1. p. 106-109 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Convolutional codes
Channel coding
Image coding
Multiplexing
Interpolation

Image coding over noisy channels with memory

Giguet, D., Abousleman, G. P. & Karam, L., 2001, Proceedings of SPIE - The International Society for Optical Engineering. Szu, H. H., Donoho, D. L., Lohmann, A. W., Campbell, W. J. & Bussy, J. R. (eds.). Vol. 4391. p. 181-190 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
coding
counters
Data storage equipment
coders

Image coding with channel-optimized trellis-coded quantization for channels with memory

Giguet, D., Karam, L. & Abousleman, G. P., 2001, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Matthews, M. B. (ed.). Vol. 1. p. 788-791 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Data storage equipment
Statistics
3 Citations (Scopus)

Joint source-channel coding of images using punctured convolutional codes and trellis-coded quantization

Channappayya, S. S., Abousleman, G. P. & Karam, L., 2001, Proceedings - IEEE International Symposium on Circuits and Systems. Vol. 5. p. 133-136 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Convolutional codes
Channel coding
5 Citations (Scopus)

Very low bit-rate target-based image coding

Giguet, D., Karam, L. & Abousleman, G. P., 2001, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Matthews, M. B. (ed.). Vol. 1. p. 778-782 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Image communication systems
2002
131 Citations (Scopus)

Adaptive image coding with perceptual distortion control

Höntsch, I. & Karam, L., Mar 2002, In : IEEE Transactions on Image Processing. 11, 3, p. 213-222 10 p.

Research output: Contribution to journalArticle

Image Coding
Image coding
Coding
Masking
Discrete cosine transforms

An end to end, real time, CDPD wireless video coding and transmission system

Liu, Z. & Karam, L., 2002, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Matthews, M. B. (ed.). Vol. 2. p. 1875-1879 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Image coding
Bandwidth
Wireless networks
Servers
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