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966
Framework for Adaptive Postprocessing of Video Signals
"... Preliminary communication Inclusion of the latest research work to a real life applications and achieving adaptive video signal post-processing is a complex and timely task. The proposed framework breaks the filtering process into several distinct phases and enables a researcher to move at a faster ..."
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Preliminary communication Inclusion of the latest research work to a real life applications and achieving adaptive video signal post-processing is a complex and timely task. The proposed framework breaks the filtering process into several distinct phases and enables a researcher to move at a faster
Receiver-driven Layered Multicast
, 1996
"... State of the art, real-time, rate-adaptive, multimedia applications adjust their transmission rate to match the available network capacity. Unfortunately, this source-based rate-adaptation performs poorly in a heterogeneous multicast environment because there is no single target rate — the conflicti ..."
Abstract
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Cited by 737 (22 self)
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State of the art, real-time, rate-adaptive, multimedia applications adjust their transmission rate to match the available network capacity. Unfortunately, this source-based rate-adaptation performs poorly in a heterogeneous multicast environment because there is no single target rate
Efficient Implementation Of Video Post-Processing
"... Deblocking and deringing are two video post-processing techniques largely used to remove coding artifacts and improve the visual quality when rendering low bit rate coded video. The algorithms used to achieve these tasks are computationally intensive and usually require high speed processors to be a ..."
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to be able to run in real time. Efficient implementations of signal adaptive filters for video post-processing can be obtained using the specialized features of the parallel BOPS DSP cores. The performance achieved by deblocking and deringing CIF and SDTV size video sequences on the MANTA^TM prototype chip
INTELLIGENT SHARPNESS ENHANCEMENT FOR VIDEO POST-PROCESSING
"... Sharpness enhancement is one of the post-processing stages in the consumer electronics video chain that operates in an open-loop mode. Although adaptive behavior is possible, in general there is no feedback system aimed at maximizing perceived quality. In this paper we introduce a control system and ..."
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Sharpness enhancement is one of the post-processing stages in the consumer electronics video chain that operates in an open-loop mode. Although adaptive behavior is possible, in general there is no feedback system aimed at maximizing perceived quality. In this paper we introduce a control system
Adaptive Electrical Signal Post-Processing with Varying Representations in Optical Communication Systems
"... Abstract. Improving bit error rates in optical communication systems is a difficult and important problem. Error detection and correction must take place at high speed, and be extremely accurate. Also, different com-munication channels have different characteristics, and those character-istics may c ..."
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change over time. We show the feasibility of using simple artificial neural networks to address these problems, and examine the effect of using different representations of signal waveforms on the ac-curacy of error correction. The results we have obtained lead us to the conclusion that a machine
Post-processing modifications in a parametric audio coder
"... Abstract:- This paper deals with the modifications of the audio signal in a parametric audio coder at the decoder stage. The parametric audio coder is based on the application of adaptive signal models for each audio signal component. These adaptive signal models are obtained by using different appr ..."
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Abstract:- This paper deals with the modifications of the audio signal in a parametric audio coder at the decoder stage. The parametric audio coder is based on the application of adaptive signal models for each audio signal component. These adaptive signal models are obtained by using different
POST-PROCESSING FOR FLICKER REDUCTION IN H.264/AVC
"... The H.264/AVC standard mitigates some of the most noticeable artifacts of former video coding standards, such as blocking and ringing. However, it exhibits a new temporal artifact, not prevalent in these standards: a noticeable discontinuity between an intra frame and its preceding inter frame, know ..."
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, known as flicker. This paper proposes a post-processing scheme for dealing with the flicker artifact. A motion compensated version of the intra frame is generated based on its preceding inter frame, and is used to filter the intra frame in order to reduce the discontinuity. In addition, a nonreference
Reverberation-Based Post-Processing for Improving Speech Intelligibility
"... When evaluating new algorithms for speech and audio coding or enhancement systems (e.g., noise reduction, echo control, or artificial bandwidth extension), one will usually listen to audio examples on headphones and not use any loudspeaker setup that might be available. The reasoning behind this cho ..."
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of this contribution lies on the evaluation of different types of impulse responses for a reverberation-based postfiltering of speech signals that were transmitted by speech codecs at low data rates. In an exemplary study based on the Adaptive Multi-Rate Wideband (AMR-WB) speech codec, the proposed post-processing
PowerScope: A Tool for Profiling the Energy Usage of Mobile Applications
, 1999
"... In this paper, we describe the design and implementation of PowerScope, a tool for profiling energy usage by applications. PowerScope maps energy consumption to program structure, in much the same way that CPU profilers map processor cycles to specific processes and procedures. Our approach combines ..."
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Cited by 198 (6 self)
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combines hardware instrumentation to measure current level with kernel software support to perform statistical sampling of system activity. Postprocessing software maps the sample data to program structure and produces a profile of energy usage by process and procedure. Using PowerScope, we have been able
Low-Complexity Video Coding for Receiver-Driven Layered Multicast
- IEEE Journal on Selected Areas in Communications
, 1997
"... In recent years, the "Internet Multicast Backbone," or MBone, has risen from a small, research curiosity to a largescale and widely used communications infrastructure. A driving force behind this growth was the development of multipoint audio, video, and shared whiteboard conferencing appl ..."
Abstract
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Cited by 164 (4 self)
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In recent years, the "Internet Multicast Backbone," or MBone, has risen from a small, research curiosity to a largescale and widely used communications infrastructure. A driving force behind this growth was the development of multipoint audio, video, and shared whiteboard conferencing
Results 1 - 10
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966
