Some considerations on coefficient sensitivity and noise in direct form IIR interpolators and decimators. - Tor A. Ramstad (ICASSP, 1979)

Sample-rate conversion by arbitrary ratios. - Tor A. Ramstad (ICASSP, 1982)

Sub-band coder with a simple adaptive bit-allocation algorithm a possible candidate for digital mobile telephony? - Tor A. Ramstad (ICASSP, 1982)

Digital Two-Rate IIR and Hybrid IIR/FIR Filters for Sampling Rate Conversion. - Tor A. Ramstad (IEEE Trans. Commun., 1982)

Fully vector-quantized subband coding with adaptive codebook allocation. - Allen Gersho; Tor A. Ramstad; I. Versvik (ICASSP, 1984)

Variable rate coding for speech storage. - Lars M. Lundheim; Tor A. Ramstad (ICASSP, 1986)

Considerations on quantization and dynamic bit-allocation in subband coders. - Tor A. Ramstad (ICASSP, 1986)

Image subband coding using an efficient recursive filter bank with complex signals. - Hakon Gronning; John Håkon Husøy; Tor A. Ramstad (VCIP, 1990)

Subband coding of video employing efficient recursive filter banks and advanced motion compensation. - John Håkon Husøy; Hakon Gronning; Tor A. Ramstad (VCIP, 1990)

An inner product space approach to image coding by contractive transformations. - Geir E. Øien; Skjalg Lepsøy; Tor A. Ramstad (ICASSP, 1991)

Cosine-modulated analysis-synthesis filterbank with critical sampling and perfect reconstruction. - Tor A. Ramstad; Joar P. Tanem (ICASSP, 1991)

Performance study of stochastic speech coders. - Bernt Ribbum; Andrew Perkis; Kuldip K. Paliwal; Tor A. Ramstad (Speech Commun., 1991)

Parallel FIR filter banks for robust subband image coding. - Sven Ole Aase; Tor A. Ramstad (ICASSP (5), 1993)

Attractor image compression with a fast non-iterative decoding algorithm. - Skjalg Lepsøy; Geir Egil Øien; Tor A. Ramstad (ICASSP (5), 1993)

Ringing reduction in low bit-rate image subband coding using projection onto a space of paraboloids. - Sven Ole Aase; Tor A. Ramstad (Signal Process. Image Commun., 1993)

An analog interpretation of compression for digital communication systems. - John M. Lervik; Tor A. Ramstad (ICASSP (5), 1994)

Fast algorithms for interpolation and decimation filter banks. - Ryszard Stasinski; Tor A. Ramstad (ICASSP (3), 1994)

Subband coding of color images with limited palette size. - Patrick Waldemar; Tor Audun Ramstad (ICASSP (5), 1994)

Optimal Entropy Coding in Image Subband Coders. - John M. Lervik; Tor A. Ramstad (ICIP (2), 1994)

A new error criterion for block based motion estimation. - Arild Fuldseth; Tor A. Ramstad (ICIP (3), 1995)

On the optimality of nonunitary filter banks in subband coders. - Sven Ole Aase; Tor A. Ramstad (IEEE Trans. Image Process., 1995)

Low complexity synthesis filter bank for subband coding of images. - Ingil Sundsbo; Tor A. Ramstad (EUSIPCO, 1996)

Subband video coding with smooth motion compensation. - Arild Fuldseth; Tor A. Ramstad (ICASSP, 1996)

Optimality of multiple entropy coder systems for nonstationary sources modelled by a mixture distribution. - John M. Lervik; Tor A. Ramstad (ICASSP, 1996)

Optimized perfect reconstruction tree-structured filter banks for image coding. - Ilangko Balasingham; Tor A. Ramstad (ICIP (1), 1996)

Combined video coding and multilevel modulation. - Arild Fuldseth; Tor A. Ramstad (ICIP (1), 1996)

Survey of odd and even length filters in tree-structured filter banks for subband image compression. - Ilangko Balasingham; Tor A. Ramstad; John M. Lervik (ICASSP, 1997)

Bandwidth compression for continuous amplitude channels based on vector approximation to a continuous subset of the source signal space. - Arild Fuldseth; Tor A. Ramstad (ICASSP, 1997)

Hybrid KLT-SVD image compression. - Patrick Waldemar; Tor Audun Ramstad (ICASSP, 1997)

On Optimal Tiling of the Spectrum in Subband Image Compression. - Ilangko Balasingham; Arild Fuldseth; Tor A. Ramstad (ICIP (1), 1997)

Efficient Coding of the Classification Table in Low Bit Rate Subband Image Coding by Use of Hierarchical Enumeration. - Arild Fuldseth; Ilangko Balasingham; Tor A. Ramstad (ICIP (2), 1997)

Channel-optimized subband video coding for channels with a power constraint. - Arild Fuldseth; Tor A. Ramstad (ICIP (3), 1997)

Fractional rate decimator and interpolator design. - Tor A. Ramstad (EUSIPCO, 1998)

Lossless image compression using integer coefficient filter banks and class-wise arithmetic coding. - Ilangko Balasingham; John M. Lervik; Tor A. Ramstad (ICASSP, 1998)

Jointly optimal analysis and synthesis filter banks for bit constrained source coding. - Are Hjørungnes; Tor A. Ramstad (ICASSP, 1998)

Performance Evaluation of Different Filter Banks in the JPEG-2000 Baseline System. - Ilangko Balasingham; Michael D. Adams 002; Tor A. Ramstad; Faouzi Kossentini; Helge Coward; Andrew Perkis; Geir E. Øien (ICIP (2), 1998)

Kirchhoff Migration of 2-D Post-Stack Seismic Data after Subband Decomposition. - Tage Røsten; Tor A. Ramstad (ICIP (3), 1998)

Synthesis filterbank with low hardware complexity for subband image coding. - Ingil Sundsbo; Tor A. Ramstad (IEEE Trans. Image Process., 1998)

Filter bank optimization for high-dimensional compression of pre-stack seismic data. - Tage Røsten; Viktor A. Marthinussen; Tor A. Ramstad; Andrew Perkis (ICASSP, 1999)

Algorithm for jointly optimized analysis and synthesis FIR filter banks. - Are Hjørungnes; Tor A. Ramstad (ICECS, 1999)

Minimum Mean Square Error Fir Filter Banks with Arbitrary Filter Lengths. - Are Hjørungnes; Helge Coward; Tor A. Ramstad (ICIP (1), 1999)

Quantizer optimization in hybrid digital-analog transmission of analog source signals. - Helge Coward; Tor A. Ramstad (ICASSP, 2000)

Comparing performance of entropy constrained scalar quantizer and other scalar quantizers. - Anna N. Kim; Tor A. Ramstad (DSP, 2002)

Improving the rate-distortion performance of DPCM. - Anna N. Kim; Tor A. Ramstad (ISSPA (1), 2003)

Fine-granular scalable and error resilient audio coding by tree-structured quantization. - Stian Johansen; Andrew Perkis; Tor A. Ramstad; Ajit S. Bopardikar (ICASSP (4), 2004)

Practical low bit rate predictive image coder using multi-rate processing and adaptive entropy coding. - Anna N. Kim; Tor A. Ramstad (ICIP, 2004)

Using 2: 1 Shannon Mapping for Joint Source-Channel Coding. - Fredrik Hekland; Geir E. Øien; Tor A. Ramstad (DCC, 2005)

Combined error protection and compression using turbo codes for error resilient image transmission. - Anna N. Kim; Stefania Sesia; Tor A. Ramstad; Giuseppe Caire (ICIP (3), 2005)

Noise Immunity for 1: N and M: 1 Nonlinear Mappings for Source-Channel Coding. - Pål Anders Floor; Tor A. Ramstad (DCC, 2006)

Image Transmission Over Flat Fading Channels Using Joint Source Channel Coding. - Greg H. Håkonsen; Tor A. Ramstad (DCC, 2006)

Digitising the 2: 1 Shannon Mappings for Transport over Heterogeneous Networks. - Fredrik Hekland; Tor A. Ramstad (DCC, 2006)

Image Transmission with Adaptive Power and Rate Allocation over Flat Fading Channels Using Joint Source Channel Coding. - Greg H. Håkonsen; Tor A. Ramstad; Anders Gjendemsjø (ICETE (Selected Papers), 2006)

Data Throughput Optimization in the IEEE 802.15.4 Medical Sensor Networks. - Stig Støa; Ilangko Balasingham; Tor A. Ramstad (ISCAS, 2007)

Power Constrained Channel Optimized Vector Quantizers used for Bandwidth Expansion. - Pål Anders Floor; Tor A. Ramstad; Niklas Wernersson (ISWCS, 2007)

Improving the Rate-Distortion Performance of DPCM Using Multirate Processing With Application in Low-Rate Image Coding. - Anna N. Kim; Tor A. Ramstad (IEEE Trans. Signal Process., 2007)

Are the Wavelet Transforms the Best Filter Banks for Image Compression? - Ilangko Balasingham; Tor A. Ramstad (EURASIP J. Image Video Process., 2008)

Poster abstract: Ultra wideband biomedical wireless sensor neworks using wavelet lifting for image transmission. - Minh-Long Pham; Tor A. Ramstad; Ilangko Balasingham (IPSN, 2009)

Minimizing Power Using Large Bandwidth PPM Transmission and DPCM Source Coding. - Minh-Long Pham; Tor A. Ramstad; Ilangko Balasingham (VTC Spring, 2009)

On the Analysis of Shannon-Kotel'nikov Mappings - Pål Anders Floor; Tor A. Ramstad (CoRR, 2009)

Shannon-kotel-nikov mappings in joint source-channel coding. - Fredrik Hekland; Pål Anders Floor; Tor A. Ramstad (IEEE Trans. Commun., 2009)

Polynomial based analog source-channel codes - [transactions papers]. - Niklas Wernersson; Mikael Skoglund; Tor A. Ramstad (IEEE Trans. Commun., 2009)

Optimized Analog Mappings for Distributed Source-Channel Coding. - Emrah Akyol; Kenneth Rose; Tor A. Ramstad (DCC, 2010)

Bandwidth Expansion in a Simple Gaussian Sensor Network Using Feedback. - Anna N. Kim; Tor A. Ramstad (DCC, 2010)

Limited Feedback Transmission Scheme for Wireless Sensor Networks. - Hieu T. Nguyen; Ilangko Balasingham; Tor A. Ramstad; Pål Anders Floor (ICC, 2010)

Distributed Signal Estimation Using Binary Sensors with Multiple Thresholds. - Babak Moussakhani; Ilangko Balasingham; Tor A. Ramstad (VTC Spring, 2010)

Distributed zero-delay joint source-channel coding for a bi-variate Gaussian on a Gaussian MAC. - Pål Anders Floor; Anna N. Kim; Niklas Wernersson; Tor A. Ramstad; Mikael Skoglund; Ilangko Balasingham (EUSIPCO, 2011)

Delay-Free Joint Source-Channel Coding for Gaussian Network of Multiple Sensors. - Anna N. Kim; Pål Anders Floor; Tor A. Ramstad; Ilangko Balasingham (ICC, 2011)

Transmitting multiple correlated gaussian sources over a Gaussian MAC using delay-free mappings. - Pål Anders Floor; Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham; Niklas Wernersson; Mikael Skoglund (ISABEL, 2011)

Very low complexity low rate image coding for the wireless endoscope. - Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham (ISABEL, 2011)

On Transmission of Two Correlated Gaussian Memoryless Sources over a Gaussian MAC using Delay-Free Mappings - Pål Anders Floor; Anna N. Kim; Niklas Wernersson; Tor A. Ramstad; Mikael Skoglund; Ilangko Balasingham (CoRR, 2011)

Wireless sensor communication system based on direct-sum source coder. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (IET Wirel. Sens. Syst., 2011)

Error concealment and post processing for the capsule endoscope. - Anna N. Kim; Eirik Jenssen Daling; Tor A. Ramstad; Ilangko Balasingham (BODYNETS, 2012)

Communication using ultra wide-band pulse position modulation for in-body sensors. - Anna N. Kim; Pål Anders Floor; Tor A. Ramstad; Ilangko Balasingham (BODYNETS, 2012)

Sum-rate distortion bound for suboptimal multiterminal source coding applied in medical wireless sensor networks. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (BODYNETS, 2012)

On localizing a capsule endoscope using magnetic sensors. - Babak Moussakhani; Tor A. Ramstad; John T. Flåm; Ilangko Balasingham (EMBC, 2012)

On transmission of multiple Gaussian sources over a Gaussian MAC using a VQLC mapping. - Pål Anders Floor; Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham (ITW, 2012)

Coded pulse position modulation communication system over the human abdominal channel for medical wireless body area networks. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (PIMRC, 2012)

Real-time compression of measurements in distribution grids. - Reza Parseh; Santiago Sanchez Acevedo; Kimmo Kansanen; Marta Molinas; Tor A. Ramstad (SmartGridComm, 2012)

A Robust Communication System Based on Joint-Source Channel Coding for a Uniform Source. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (VTC Fall, 2012)

Optimal and robust communication for a uniform source. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (IET Commun., 2012)

On localisation accuracy inside the human abdomen region. - Babak Moussakhani; John T. Flåm; Stig Støa; Ilangko Balasingham; Tor A. Ramstad (IET Wirel. Sens. Syst., 2012)

Zero-Delay Joint Source-Channel Coding for a Bivariate Gaussian on a Gaussian MAC. - Pål Anders Floor; Anna N. Kim; Niklas Wernersson; Tor A. Ramstad; Mikael Skoglund; Ilangko Balasingham (IEEE Trans. Commun., 2012)

On optimal detection for matrix multiplicative data hiding. - Babak Moussakhani; Mohammad Ali Sedaghat; John T. Flåm; Tor A. Ramstad (IH&MMSec, 2013)

On zero delay source-channel coding: Functional properties and linearity conditions. - Emrah Akyol; Kumar Viswanatha; Kenneth Rose; Tor A. Ramstad (ISIT, 2013)

Zero Delay Joint Source Channel Coding for Multivariate Gaussian Sources over Orthogonal Gaussian Channels. - Pål Anders Floor; Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham (Entropy, 2013)

Zero-Delay Joint Source-Channel Coding for a Multivariate Gaussian on a Gaussian MAC. - Pål Anders Floor; Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham; Niklas Wernersson; Mikael Skoglund (CoRR, 2014)

On change detection in a Kalman filter based tracking problem. - Babak Moussakhani; John T. Flåm; Tor A. Ramstad; Ilangko Balasingham (Signal Process., 2014)

On Zero-Delay Source-Channel Coding. - Emrah Akyol; Kumar Viswanatha; Kenneth Rose; Tor A. Ramstad (IEEE Trans. Inf. Theory, 2014)

Accurate heart rate estimation from camera recording via MUSIC algorithm. - Seyyed Hamed Fouladi; Ilangko Balasingham; Tor Audun Ramstad; Kimmo Kansanen (EMBC, 2015)

On Joint Source-Channel Coding for a Multivariate Gaussian on a Gaussian MAC. - Pål Anders Floor; Anna N. Kim; Tor A. Ramstad; Ilangko Balasingham; Niklas Wernersson; Mikael Skoglund (IEEE Trans. Commun., 2015)

In-Body to On-Body Ultrawideband Propagation Model Derived From Measurements in Living Animals. - Pål Anders Floor; Raúl Chávez-Santiago; Sverre Brovoll; Øyvind Aardal; Jacob Bergsland; Ole-Johannes H. N. Grymyr; Per Steinar Halvorsen; Rafael Palomar; Dirk Plettemeier; Svein-Erik Hamran; Tor A. Ramstad; Ilangko Balasingham (IEEE J. Biomed. Health Informatics, 2015)

Extracting remote photoplethysmogram signal from endoscopy videos for vessel and capillary density recognition. - Seyyed Hamed Fouladi; Ilangko Balasingham; Kimmo Kansanen; Tor Audun Ramstad (EMBC, 2016)

Layered source-channel coding for uniformly distributed sources over parallel fading channels. - Hieu T. Nguyen; Tor A. Ramstad; Ilangko Balasingham (PIMRC, 2016)

Blind Source Separation Using Temporal Correlation, Non-Gaussianity and Conditional Heteroscedasticity. - Seyyed Hamed Fouladi; Ilangko Balasingham; Kimmo Kansanen; Tor Audun Ramstad (IEEE Access, 2018)

Communication Aspects for a Measurement Based UWB in-Body to on-Body Channel. - Pål Anders Floor; Raúl Chávez-Santiago; Anna N. Kim; Kimmo Kansanen; Tor A. Ramstad; Ilangko Balasingham (IEEE Access, 2019)

Shannon-Kotel'nikov Mappings for Analog Point-to-Point Communications. - Pål Anders Floor; Tor A. Ramstad (IEEE Trans. Inf. Theory, 2024)