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Publications associées (355)

Growth Codes: Intermediate Performance Analysis and Application to Video

Pascal Frossard, Nikolaos Thomos, Rethnakaran Pulikkoonattu

Growth codes are a subclass of Rateless codes that have found interesting applications in data dissemination problems. Compared to other Rateless and conventional channel codes, Growth codes show improved intermediate performance which is particularly usef ...

Institute of Electrical and Electronics Engineers2013

Subjective evaluation of HEVC intra coding for still image compression

Touradj Ebrahimi, Philippe Hanhart, Martin Rerabek

High Efficiency Video Coding (HEVC) demonstrates a significant improvement in compression efficiency compared to H.264/MPEG-4 AVC, especially for video with resolution beyond HD, such as 4K UHDTV. One advantage of HEVC is the improved intra coding of video ...

2013

Multichannel Blind Deconvolution Using Low-rank and Sparse Decomposition

Pierre Vandergheynst, Mahdad Hosseini Kamal

Multiple images of the same scene improve the result of multichannel blind deconvolution problem. However, existing techniques require alignment of channels. We define a multichannel deconvolution scheme for highly correlated images to estimated the blur k ...

2013

Column-Separated Compressive Sampling Scheme for Low Power CMOS Image Sensors

Pierre Vandergheynst, Alexandre Schmid, Mustafa Kilic, Yusuf Leblebici, Mahdad Hosseini Kamal, Nikola Katic

A novel compressive sampling scheme suitable for highly scalable hardware implementations is presented. The scheme utilizes an identical pseudo-random sequence for every image column, therefore reducing in-pixel hardware complexity and allowing measurement ...

IEEE2013

Quality Assessment of a Stereo Pair Formed From Two Synthesized Views Using Objective Metrics

Touradj Ebrahimi, Philippe Hanhart

When a stereo pair is formed from two synthesized views, it is unclear whether objective 2D quality metrics can provide a good estimation of the perceived quality. In this paper, this problem is addressed considering a 3D video represented in multiview vid ...

2013

Predicting 3D Quality based on Content Analysis

Touradj Ebrahimi, Philippe Hanhart

Development of objective quality metrics that can reliably predict perceived quality of 3D video sequences is challenging. Various 3D objective metrics have been proposed, but PSNR is still widely used. Several studies have shown that PSNR is strongly cont ...

2013

View Selection Policy For Multi-View Video Delivery

We derive an optimization framework for computing a view selection policy for streaming multi-view content over a bandwidth constrained channel. The optimization allows us to determine the decisions of sending the packetized data such that the end-to-end r ...

IEEE2013

Method to compensate the effect of the rolling shutter effect

Pierre Vandergheynst, Emmanuel D'Angelo

A method to create a video sequence of a plurality of resultant images is disclosed. The video sequence is produced from images originating from a rolling shutter acquisition sensor. ...

2013

3D Video Quality Assessment

Touradj Ebrahimi, Francesca De Simone, Philippe Hanhart, Martin Rerabek

Quality is a fundamental concept closely linked to measuring performance in systems, products and services. Any compression and representation technique in audiovisual signals needs metrics of quality, not only in their design stage but also in demonstrati ...

John Wiley & Sons Inc2013

Porting an MPEG-HEVC decoder to a low-power many-core platform

Marco Mattavelli, Simone Casale Brunet, Claudio Paolo Alberti, Damien Jack De Saint Jorre

After several generations of video coding standards, MPEG High Efficient Video Coding (HEVC) is likely to emerge as the video coding standards for HD and Ultra-HD TV. HEVC decoding is expected to be less computationally demanding and to provide a higher le ...

2013

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