Per Hedelin

Visar 49 publikationer

2008

Packet Video Error Concealment With Gaussian Mixture Models

Daniel Persson, Thomas Eriksson, Per Hedelin
Image Processing, IEEE Transactions on
Artikel i vetenskaplig tidskrift
2006

Qualitative Analysis of Video Packet Loss Concealment with Gaussian Mixtures

Daniel Persson, Thomas Eriksson, Per Hedelin
Icassp 2006, 14-19 May, France. Vol. 2, p. II-961 - II-964-
Paper i proceeding
2005

LSP quantization by a union of locally trained codebooks

T. Z. Shabestary, Per Hedelin
IEEE Transactions on Speech and Audio Processing. Vol. 13 (5), p. 811-820
Artikel i vetenskaplig tidskrift
2005

A Statistical Approach to Packet Loss Concealment for Video

Daniel Persson, Per Hedelin
ICASSP. Vol. 2 (2005), p. 293 - 296
Paper i proceeding
2005

Vector quantization by companding a union of Z-lattices

T. Z. Shabestary, Per Hedelin
IEEE Transactions on Information Theory. Vol. 51 (2), p. 738-746
Artikel i vetenskaplig tidskrift
2001

An information theoretic perspective on the speech spectrum process

Fredrik Nordén, Thomas Eriksson, Per Hedelin
Proc. IEEE Workshop on Speech Coding, p. 93-95
Paper i proceeding
2000

Low-Rate Quantization of Spectrum Parameters

Per Hedelin, H-G. Kang, Thomas Eriksson
Proc. Conf. IEEE ICASSP -2000, Istanbul, Turkey
Paper i proceeding
2000

Model Based Spectrum Prediction

Jonas Lindblom, Jonas Samuelsson, Per Hedelin
Proc. of the 2000 IEEE Workshop on Speech Coding, p. 117-119
Paper i proceeding
2000

Recursive LPC Spectrum Coding - a Classified VQ Approach

Fredrik Nordén, Jan Skoglund, Per Hedelin
Proc. Conf. IEEE ICASSP-2000, Istanbul, Turkey
Paper i proceeding
1999

Robust Vector Quantization by a Linear Mapping of a Block Code

Roar Hagen, Per Hedelin
IEEE Transactions on Information Theory. Vol. 45, p. 200-218
Artikel i vetenskaplig tidskrift
1999

Hadamard-based Soft Decoding for Vector Quantization over Noisy Channels

Mikael Skoglund, Per Hedelin
IEEE Transactions on Information Theory. Vol. 45, p. 515-532
Artikel i vetenskaplig tidskrift
1999

Performance Bounds for LPC Spectum Quantization

Per Hedelin, Jan Skoglund, Jonas Samuelsson
Proc. IEEE ICASSP-99, Phoenix, Arizona. Vol. 2, p. 677-680
Paper i proceeding
1999

Combatting Packet Losses by Model Based Spectrum Prediction

Jonas Lindblom, Per Hedelin
Proc. of the PCC Workshop, p. 29-34
Paper i proceeding
1999

SD Optimization of Spectral Coders

Per Hedelin, Fredrik Nordén, Jan Skoglund
Proc. IEEE Speech Coding Workshop, Provoo, Finland, p. 28-30
Paper i proceeding
1999

Recursive Coding of Spectrum Parameters

Jonas Samuelsson, Per Hedelin
Proc. IEEE Speech Coding Workshop, Provoo, Finland, p. 37-39
Paper i proceeding
1997

Audibility of Pitch-Synchronously Modulated Noise

Jan Skoglund, W.B. Kleijn, Per Hedelin
Proc. IEEE Speech Coding Workshop, Pocono Manor, PA
Paper i proceeding
1995

Theory for transmission of vector quantization data

Per Hedelin, Petter Knagenhjelm, Mikael Skoglund
Elsevier Science, Speech coding and synthesis
Artikel i vetenskaplig tidskrift
1995

Soft Decoding for Vector Quantization in Combination with Block Channel Coding

Mikael Skoglund, Per Hedelin
Proc. IEEE Int. Symposium on Information Theory ISIT-95, Whistler, Canada, p. 436-
Paper i proceeding
1995

Low Rate Speech Coding Using a Glottal Pulse Codebook

Jan Lindén, Jan Skoglund, Per Hedelin
Proc. IEEE Speech Coding Workshop, Annapolis, USA. Vol. 1, p. 105-106
Paper i proceeding
1995

Interpolating the History - Improved Excitation Coding for High Quality CELP Coding

Per Hedelin, Thomas Eriksson
Proc. IEEE ICASSP-95, Detroit, USA, p. 17-20
Paper i proceeding
1995

Vector quantization for speech transmission

Per Hedelin, Petter Knagenhjelm, Mikael Skoglund
Elsevier Science, Speech coding and Synthesis, p. 347-396
Artikel i vetenskaplig tidskrift
1994

Vector quantization over a Noisy Channel using Soft Decision Decoding

Mikael Skoglund, Per Hedelin
Proc. IEEE Int. Conf. ICASSP-94, Adelaide, Australia, p. 605-608
Paper i proceeding
1994

Spectral Coding at 20 bits

Per Hedelin
Proc. IEEE Int. Conf. ICASSP-94, Adelaide, Australia, p. 525-527
Paper i proceeding
1994

Employing the Hadamard Transform for Analysis and Design of Vector Quantizers

Per Hedelin
Proc. Nordic Signal Processing Symposium , Ålesund, Norway
Paper i proceeding
1994

How to evaluate search methods for vector quantization

Erik Agrell, Per Hedelin
Proc. Nordic Signal Processing Symposium, Ålesund, Norway, p. 258-263
Paper i proceeding
1994

Design Methods for VQ by Linear Mappings of Block Codes

Roar Hagen, Per Hedelin
Proc. IEEE Int. Symposium on Information Theory, ISIT-94, Trondheim, Norway, p. 241-
Paper i proceeding
1994

A Glottal Vocoder Emloying Vector Quantization

Jan Lindén, Jan Skoglund, Per Hedelin et al
Proc. Nordic Signal Processing Symposium, Ålesund, Norway, p. 198-201
Paper i proceeding
1994

A Soft Decoder Vector Quantizer for a Noisy Channel

Mikael Skoglund, Per Hedelin
Proc. IEEE Int. Symposium on Information Theory, ISIT-94, Trondheim, Norway, p. 401-
Paper i proceeding
1993

Robust Vector Quantization in Spectral Coding

Roar Hagen, Per Hedelin
Proc. IEEE Int.Conf. ICASSP-93, Minneapolis, USA, p. 13-16
Paper i proceeding
1993

A Robust Single-Stage VQ for Spectral Coding

Roar Hagen, Per Hedelin
Proc. IEEE Speech Coding Workshop, Québec, Canada, p. 67-68
Paper i proceeding
1993

Robust Vector Quantization by Linear Mappings of Block Codes

Roar Hagen, Per Hedelin
Proc. IEEE Int. Symposium on Information Theory, ISIT-93, San Antonio, USA, p. 171-
Paper i proceeding
1992

Spectral Coding by LSP-frequencies: Scalar and VQ-methods

Roar Hagen, Per Hedelin
Proc. I IEEE Communications, Speech and Vision. Vol. 139 (2), p. 118-122
Artikel i vetenskaplig tidskrift
1992

A Multi-Stage Perspective on CELP Speech Coding

Per Hedelin
Proc. IEEE Int. Conf. ICASSP-92 part I, San Fransisco, USA, p. 57-60
Paper i proceeding
1991

Design and Initialization of Artificial Neural Networks by (Reduced) Pair-Wise Tests

Johan Molnö, Per Hedelin
Proc. Int. Conf. on Artifical Neuarl Networks ICANN-91, Helsinki, Finland, p. 635-640
Paper i proceeding
1991

Probability Based Optimization for Network Classifiers

Peter Brauer, Per Hedelin, D. Huber et al
Proc. IEEE Int. Conf. ICASSP-91, Toronto, Canada, p. 133-136
Paper i proceeding
1991

Model or Non-Model Based Classifiers

Peter Brauer, Per Hedelin, D. Huber et al
Proc. EUROSPEECH-91, Genova, Italy. Vol. 2, p. 1027-1030
Paper i proceeding
1991

Amplitude Quantization for CELP Excitation Signals

Per Hedelin, Anders Bergström
Proc. IEEE Int. Conf. ICASSP-91, Toronto, Canada, p. 225-228
Paper i proceeding
1990

Low Bit-rate Spectral Coding in CELP - A New LSP-Method

Roar Hagen, Per Hedelin
Proc. IEEE Int. Conf. ICASSP-90, Albuquerque, New Mexico, p. 189-192
Paper i proceeding
1990

The CTH-Speech Database: An Integrated Multilevel Approach

Per Hedelin, D. Huber
Speech Communication. Vol. 9 (4), p. 365-374
Artikel i vetenskaplig tidskrift
1990

Pitch Period Determination of Aperiodic Speech Signals

Per Hedelin, D. Huber
Proc. IEEE Int. Conf. ICASSP-90, Albuquerque, New Mexico. Vol. 1, p. 361-364
Paper i proceeding
1989

Structures and contents in CELP residual code-books

Anders Bergström, Per Hedelin
Proc. STU-Symposium "Digital Communication", Stockholm, Sweden, p. 26-29
Paper i proceeding
1989

High Temporal Resolution in Multi-Pulse Coding

Anders Bergström, Per Hedelin
Proc. IEEE Int. Conf. ICASSP-89, Glasgow, Scotland. Vol. 2, p. 770-773
Paper i proceeding
1989

Tree-Search Quantization of LSP-Parameters

Roar Hagen, Per Hedelin
Proc. IEEE Workshop on Speech Coding for Telecommunication, Vancouver, Canada, p. 42-45
Paper i proceeding
1989

Classification: A problem of Optimization or Organization?

Holger Broman, Per Hedelin, Peter Brauer et al
Proc. STU-Symposium "Digital Communication", Stockholm, Sweden, p. 101-106
Paper i proceeding
1989

The CTH-Speech Database: An Integrated Multilevel Approach

Per Hedelin, D. Huber
Proc. ESCA Workshop on Speech Input/Output Assessment and Speech Databases, Noordwijkerhout, Netherlands, p. 2.9.1-2.9.4
Paper i proceeding
1989

CTH Signal Processing Activities - The 1989 Perspective

Per Hedelin, D. Huber
Proc. STU Symposium "Digital Communication", Stockholm, Sweden, p. 23-25
Paper i proceeding
1989

Code-Book Driven Glottal Pulse Analysis

Anders Bergström, Per Hedelin
Proc. IEEE Int. Conf. ICASSP-89, Glasgow, Scotland. Vol. 1, p. 53-56
Paper i proceeding
1988

Extended Glottal LPC with Mixed Excitation

Anders Bergström, Per Hedelin
Proc. Eurocon-88, Stockholm, Sweden, p. 28-31
Paper i proceeding
1988

Phase Compensation in All-pole Speech Analysis

Per Hedelin
Proc. IEEE Int. Conf. ICASSP-88, New York, USA. Vol. 1, p. 339-342
Paper i proceeding

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