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Context-dependent JPEG backward-compatible high-dynamic range image compression

Publications associées (68)

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Subjective evaluation of JPEG XR image compression

Touradj Ebrahimi, Francesca De Simone, Lutz Goldmann

In this paper a procedure for subjective evaluation of the new JPEG XR codec for compression of still pictures is described in details. The new algorithm has been compared to the existing JPEG and JPEG 2000 standards when considering compression of high re ...

2009

Digital Camera Workflow for High Dynamic Range Images Using a Model of Retinal Processing

Sabine Süsstrunk, Laurence Meylan, Daniel Tamburrino

We propose a complete digital camera workflow to capture and render high dynamic range (HDR) static scenes, from RAW sensor data to an output- referred encoded image. In traditional digital camera processing, demosaicing is one of the first operations done ...

2008

Cooperative video streaming with dynamic compression at the terminal nodes

Tom Larsen

Media content distribution constitutes a growing share of the services on the Internet. In recent years methods for cooperative media distribution has been a research area with high activity. Concurrently wireless internet connections have emerged. Wireles ...

IEEE Computer Society2008

On Comparing Image and Video Compression Algorithms

Touradj Ebrahimi, Frédéric Dufaux, Mourad Ouaret

In this work, a performance evaluation of AVC Intra and JPEG2000 in terms of rate-distortion performance is conducted. A set of High Definition sequences with different spatial resolutions is used for this purpose. Results obtained show quite competitive p ...

2007

Tone Mapping For High Dynamic Range Displays

Sabine Süsstrunk, Laurence Meylan

We address the problem of re-rendering images to high dynamic range (HDR) displays, which were originally tone-mapped to standard displays. As these new HDR displays have a much larger dynamic range than standard displays, an image rendered to standard mon ...

2007

Tone mapping for high dynamic range images

Laurence Meylan

Tone mapping is an essential step for the reproduction of "nice looking" images. It provides the mapping between the luminances of the original scene to the output device's display values. When the dynamic range of the captured scene is smaller or larger t ...

EPFL2006

The Reproduction of Specular Highlights on High Dynamic Range Displays

Sabine Süsstrunk, Laurence Meylan

Recent advances in the design of high dynamic range (HDR) monitors enable the display of images having a large dynamic range, close to that encountered in the real world. As their usage will increase, we will be confronted with the problem of rerendering i ...

2006

JPEG2000 image coding system theory and applications

Touradj Ebrahimi

JPEG2000, the new standard for still image coding, provides a new framework and an integrated toolbox to better address increasing needs for compression. It offers a wide range of functionalities such as lossless and lossy coding, embedded lossy to lossles ...

2006

Optimized Transmission of JPEG2000 Streams Over Wireless Channels

Nikolaos Thomos

The transmission of JPEG2000 images over wireless channels is examined using reorganization of the compressed images into error-resilient, product-coded streams. The product-code consists of Turbo-codes and Reed-Solomon codes which are optimized using an i ...

Institute of Electrical and Electronics Engineers2006

High Dynamic Range Image Rendering Using a Retinex-Based Adaptive Filter

Sabine Süsstrunk, Laurence Meylan

We propose a new method to render high dynamic range images that models global and local adaptation of the human visual system. Our method is based on the center-surround Retinex model. The novelties of our method is first to use an adaptive surround, whos ...

Institute of Electrical and Electronics Engineers2006