Senior Lecturer
- 51cg
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- Email Address
- jari.korhonen@abdn.ac.uk
- Office Address
- School/Department
- School of Natural and Computing Sciences



Biography
I am an experienced researcher in computer science, specialised in multimedia technologies and Quality of Experience (QoE) in particular. I received my MSc degree in information engineering at University of Oulu, Finland, in 2001, and PhD in telecommunications and signal processing at Tampere University of Technology, Finland, in 2006. In my early career, I worked as a Research Engineer at Nokia Research Center, Tampere, Finland, from 2001 to 2006, before moving to academia. Before joining the 51cg, I was working at Shenzhen University, China, from 2017 to 2022.
My past research experience covers both telecommunications and signal processing aspects of multimedia communications. My current research focus primarily on visual quality assessment, and I have contributed to several models for predicting perceived image and video quality directly from the signal. As a part of this work, I have been principal investigator (PI) for a project funded by National Natural Science Foundation of China (NSFC) from 2018 to 2021. Most recently, I have studied deep learning techniques applied to visual quality assessment, as well as other related computer vision problems.
In addition to my research work, I have experience of teaching several courses in the fields of visual communications, signal processing, and telecommunications. I have also supervised and co-supervised several student projects at BSc, MSc and PhD levels.
Qualifications
- PhD Telecommunications and Signal Processing2006 - Tampere University of Technology, Finland
- MSc Information Engineering2001 - University of Oulu, Finland
External Memberships
- IEEE Member
Latest Publications
COPP-Net: No-Reference Point Cloud Quality Assessment via Weighted Patch Quality Prediction
IEEE Transactions on Broadcasting, vol. 71, no. 4, pp. 1079 - 1091Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
NERO: Explainable Out-of-Distribution Detection with Neuron-level Relevance in Gastrointestinal Imaging
Contributions to Conferences: Papers- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
3DTA: No-Reference 3D Point Cloud Quality Assessment with Twin Attention
IEEE Transactions on Multimedia, vol. 26, pp. 10489 - 10502Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Gated Transformer Representing Region Importance for Image Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
FishIR: Identifying Pufferfish Individual based on Deep Learning and Face Recognition
IEEE Access, vol. 12, pp. 59807 - 59817Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
- Research
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Research Areas
Accepting PhDs
I am currently accepting PhDs in Computing Science.
Please get in touch if you would like to discuss your research ideas further.
Research Specialisms
- Artificial Intelligence
- Computer Vision
- Multimedia Computing Science
Our research specialisms are based on the Higher Education Classification of Subjects (HECoS) which is , published under the licence.
Funding and Grants
- National Natural Science Foundation of China (NSFC) Grant 61772348: "Quality assessment for consumer video applications," 2018-21 (Shenzhen University).
- Teaching
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Teaching Responsibilities
I am currently course co-ordinator for the following SCNU Joint Institute BSc courses:
I also supervise coursework projects for the following SCNU Joint Institute BSc courses:
In addition, I supervise BSc thesis projects and I am course co-ordinator for the CS programme in JC4000 Graduation Thesis.
- Publications
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Page 1 of 1 Results 1 to 97 of 97
COPP-Net: No-Reference Point Cloud Quality Assessment via Weighted Patch Quality Prediction
IEEE Transactions on Broadcasting, vol. 71, no. 4, pp. 1079 - 1091Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
NERO: Explainable Out-of-Distribution Detection with Neuron-level Relevance in Gastrointestinal Imaging
Contributions to Conferences: Papers- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
3DTA: No-Reference 3D Point Cloud Quality Assessment with Twin Attention
IEEE Transactions on Multimedia, vol. 26, pp. 10489 - 10502Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Gated Transformer Representing Region Importance for Image Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
FishIR: Identifying Pufferfish Individual based on Deep Learning and Face Recognition
IEEE Access, vol. 12, pp. 59807 - 59817Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
On the Explainable Detection of Stress Levels Using Heart Rate Variability Based Deep Neural Networks
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
High Resolution Image Quality Database
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
High Resolution Image Quality Database
Working Papers: Preprint Papers- [ONLINE] DOI:
- [OPEN ACCESS]
Half of an image is enough for quality assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
No-Reference Point Cloud Quality Assessment via Weighted Patch Quality Prediction
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
No-Reference Point Cloud Quality Assessment via Weighted Patch Quality Prediction
Working Papers: Preprint Papers- [ONLINE] DOI:
- [OPEN ACCESS]
Fast Accurate Fish Recognition with Deep Learning Based on a Domain-Specific Large-Scale Fish Dataset
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Half of an image is enough for quality assessment
Working Papers: Preprint Papers- [ONLINE] DOI:
Adversarial Attacks against Blind Image Quality Assessment Models
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Simulating Visual Mechanisms by Sequential Spatial-Channel Attention for Image Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Attention integrated hierarchical networks for no-reference image quality assessment
Journal of Visual Communication and Image Representation, vol. 82, 103399Contributions to Journals: Articles- [ONLINE] DOI:
- [OPEN ACCESS]
- [ONLINE]
Reproducibility Companion Paper: Blind Natural Video Quality Prediction via Statistical Temporal Features and Deep Spatial Features
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Transformer For Image Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE]
- [ONLINE] DOI:
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Practical Video Quality Assessment of User Generated Content
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Spatio-Temporal Difference Descriptor for Skeleton-Based Action Recognition
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Blind Natural Video Quality Prediction via Statistical Temporal Features and Deep Spatial Features
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Motion JPEG Decoding via Iterative Thresholding and Motion-Compensated Deflickering
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Attention Boosted Deep Networks for Video Classification
Chapters in Books, Reports and Conference Proceedings: Conference ProceedingsBlind Natural Image Quality Prediction Using Convolutional Neural Networks and Weighted Spatial Pooling
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
Two-Level Approach for No-Reference Consumer Video Quality Assessment
IEEE Transactions on Image Processing, vol. 28, no. 12, pp. 5923-5938Contributions to Journals: Articles- [ONLINE] DOI:
Assessing Personally Perceived Image Quality via Image Features and Collaborative Filtering
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
Deep Neural Networks for No-Reference Video Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
Optimizing the Parameters for Post-processing Consumer Photos via Machine Learning
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
Study of the Subjective Visibility of Packet Loss Artifacts in Decoded Video Sequences
IEEE Transactions on Broadcasting, vol. 64, no. 2, pp. 354-366Contributions to Journals: Articles- [ONLINE] DOI:
Learning-based Prediction of Packet Loss Artifact Visibility in Networked Video
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE]
- [ONLINE] DOI:
Subjective Assessment of Post-Processing Methods for Low Light Consumer Photos
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE]
- [ONLINE] DOI:
Predicting Personal Preferences in Subjective Video Quality Assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Modeling the quality of videos displayed with local dimming backlight at different peak white and ambient light levels
IEEE Transactions on Image Processing, vol. 25, no. 8, pp. 3751-3761Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
HDR Display Characterization and Modeling
High Dynamic Range Video: From Acquisition to Display and Applications. Elsevier Inc, pp. 347-369, 23 pagesChapters in Books, Reports and Conference Proceedings: Chapters- [ONLINE] DOI:
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Assessing visibility of individual transmission errors in networked video
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
No-Reference Video Quality Assessment Using Codec Analysis
IEEE transactions on circuits and systems for video technology, vol. 25, no. 10, pp. 1637-1650Contributions to Journals: Articles- [ONLINE] DOI:
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Improving image fidelity by luma-assisted chroma subsampling
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Subjective quality of videos displayed with local backlight dimming at different peak white and ambient light levels
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Video quality assessment and machine learning: Performance and interpretability
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Modeling the subjective quality of highly contrasted videos displayed on LCD with local backlight dimming
IEEE Transactions on Image Processing, vol. 24, no. 2, pp. 573-582Contributions to Journals: Articles- [ONLINE] DOI:
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Subjective comparison of brightness preservation methods for local backlight dimming displays
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Subjective quality of video sequences rendered on LCD with local backlight dimming at different lighting conditions
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Investigating subjective attributes of quality for videos displayed with local backlight dimming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Modeling the leakage of LCD displays with local backlight for quality assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Block-based gradient descent for local backlight dimming and flicker reduction
IEEE/OSA Journal of Display Technology, vol. 10, no. 1, pp. 71-79Contributions to Journals: Articles- [ONLINE] DOI:
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Controlling power consumption for displays with backlight dimming
IEEE/OSA Journal of Display Technology, vol. 9, no. 12, pp. 933-941Contributions to Journals: Articles- [ONLINE] DOI:
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Modeling power-constrained optimal backlight dimming for color displays
IEEE/OSA Journal of Display Technology, vol. 9, no. 8, pp. 656-665Contributions to Journals: Articles- [ONLINE] DOI:
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Enhancing perceived quality of compressed images and video with anisotropic diffusion and fuzzy filtering
Signal Processing: Image Communication, vol. 28, no. 3, pp. 222-240Contributions to Journals: Articles- [ONLINE] DOI:
- [ONLINE]
Adaptive local backlight dimming algorithm based on local histogram and image characteristics
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Frame rate versus spatial quality: Which video characteristics do matter?
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Modeling the color image and video quality on liquid crystal displays with backlight dimming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
No-reference video quality assessment using MPEG analysis
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Quality assessment of images displayed on LCD screen with local backlight dimming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Reducing the duration of paired-comparison experiments for visual quality assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Searching for the preferred backlight intensity in liquid crystal displays with local backlight dimming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Image dependent energy-constrained local backlight dimming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Improving performance of wavelet-based image denoising algorithm using complex diffusion process
Imaging Science Journal, vol. 60, no. 4, pp. 208-218Contributions to Journals: Articles- [ONLINE] DOI:
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Speedup of optimization-based approach to local backlight dimming of HDR displays
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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How to evaluate objective video quality metrics reliably
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Objective assessment of the impact of frame rate on video quality
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Peak signal-to-noise ratio revisited: Is simple beautiful?
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Theoretical framework for evaluating partial checksum protection in wireless video streaming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Balancing attended and global stimuli in perceived video quality assessment
IEEE Transactions on Multimedia, vol. 13, no. 6, pp. 1269-1285Contributions to Journals: Articles- [ONLINE] DOI:
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Congestion control in wireless links based on selective delivery of erroneous packets
Signal Processing: Image Communication, vol. 26, no. 2, pp. 105-115Contributions to Journals: Articles- [ONLINE] DOI:
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Modeling LCD displays with local backlight dimming for image quality assessment
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Artifact reduction of compressed images and video combining adaptive fuzzy filtering and directional anisotropic diffusion
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Audiovisual quality fusion based on relative multimodal complexity
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Subjective comparison of temporal and quality scalability
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Attention modeling for video quality assessment: Balancing global quality and local quality
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Audiovisual quality assessment in communications applications: Current status, trends and challenges
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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On the relationship between perceptual impact of source and channel distortions in video sequences
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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On the relative importance of audio and video in the presence of packet losses
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Spatial and temporal pooling of image quality metrics for perceptual video quality assessment on packet loss streams
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Flexible forward error correction codes with application to partial media data recovery
Signal Processing: Image Communication, vol. 24, no. 3, pp. 229-242Contributions to Journals: Articles- [ONLINE] DOI:
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Analysis on the perceptual impact of bit errors in practical video streaming applications
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Battery life of mobile peers with UMTS and WLAN in a Kademlia-based P2P overlay
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Comparing apples and oranges: Subjective quality assessment of streamed video with different types of distortion
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Comparison of unequal erasure protection schemes for video streaming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Loss-distortion estimation for practical H.264/AVC streams
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
- [ONLINE]
Wireless congestion control based on delivery of erroneous packets
Contributions to Journals: Conference Articles- [ONLINE] DOI:
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Peer-to-peer community management using structured overlay networks
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Error control for video streaming with small data units
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Leveraging collaboration of peer-to-peer and web services
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Sparse FEC codes for flexible media protection
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Bit-error resilient packetization for streaming h.264/avc video
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Generic forward error correction of short frames for IP streaming applications
Multimedia Tools and Applications, vol. 29, no. 3, pp. 305-323Contributions to Journals: Articles- [ONLINE] DOI:
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Unacceptability of instantaneous errors in mobile television: From annoying audio to video
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Toward bandwidth-efficient and error-robust audio streaming over lossy packet networks
Multimedia Systems, vol. 10, no. 5, pp. 402-412Contributions to Journals: Articles- [ONLINE] DOI:
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Power-efficient streaming for mobile terminals
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Effect of packet size on loss rate and delay in wireless links
Contributions to Journals: Conference Articles- [ONLINE]
Optimization of source and channel coding for voice over IP
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Adaptive multimedia streaming for heterogeneous networks
Wired/Wireless Internet Communications. WWIC 2004. Langendoerfer, P., Liu, M., Matta, I., Tsaoussidis, V. (eds.). Springer Verlag, pp. 248-259, 12 pagesChapters in Books, Reports and Conference Proceedings: Chapters- [ONLINE] DOI:
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A framework for robust and scalable audio streaming
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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Packetization scheme for streaming high-quality audio over wireless links
Interactive Multimedia on Next Generation Networks. MIPS 2003. Ventre, G., Canonico, R. (eds.). Springer Verlag, pp. 42-53, 12 pagesChapters in Books, Reports and Conference Proceedings: Chapters- [ONLINE] DOI:
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Robust audio streaming over lossy packet-switched networks
Information Networking. ICOIN 2003. Kahng, H. (ed.). Springer Verlag, pp. 386-395, 10 pagesChapters in Books, Reports and Conference Proceedings: Chapters- [ONLINE] DOI:
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Schemes for error resilient streaming of perceptually coded audio
Contributions to Journals: Conference Articles- [ONLINE]
Error robustness scheme for perceptually coded audio based on interframe shuffling of samples
Chapters in Books, Reports and Conference Proceedings: Conference Proceedings- [ONLINE] DOI:
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