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Touradj Ebrahimi

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Related publications (306)

Omnidirectional object duplicate detection

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Lutz Goldmann

With the technological evolution of digital acquisition and content analysis, millions of images and video sequences are captured every day and used in a large variety of applications. As keyword-based indexing is very time consuming and inefficient due to ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

A new analysis method for paired comparison and its application to 3D quality assessment

Touradj Ebrahimi, Jong Seok Lee, Lutz Goldmann

Among various subjective quality evaluation methodologies, paired comparison has the advantage of improved simplicity of the subjects’ evaluation task due to simplified rating scales and direct comparison of two stimuli. Thus, it may lead to more reliable ...

2011

Towards reliable and reproducible 3D video quality assessment

Touradj Ebrahimi, Lutz Goldmann

The success of 3D video, as one of the emerging multimedia formats, will largely depend on the improved quality of experience that it provides to viewers when compared to conventional 2D video. Therefore reliable methods for 3D video quality assessment are ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2011

Epitomize Your Photos

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Jong Seok Lee

With the rapid growth of digital photography, sharing of photos with friends and family has become very popular. When people share their photos, they usually organize them in albums according to events or places. To tell the story of some important events ...

2011

Factors impacting quality of experience in stereoscopic images

Touradj Ebrahimi

2011

Subjective quality assessment of scalable video coding: a survey

Touradj Ebrahimi, Francesca De Simone, Jong Seok Lee

Scalable video coding is a promising solution for efficient video content distribution to users having heterogeneous network and terminal capabilities. Thanks to its inherent multidimensional adaptability, a scalable bit stream can be used to simultaneousl ...

2011

Subjective quality assessment of H.264/AVC video streaming with packet losses

Touradj Ebrahimi, Frédéric Dufaux, Francesca De Simone

Research in the field of video quality assessment relies on the availability of subjective scores, collected by means of experiments in which groups of people are asked to rate the quality of video sequences. The availability of subjective scores is fundam ...

Hindawi Publishing Corporation2011

Let Epitome summarize your photo collection!

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Lutz Goldmann

2011

Motion Parallax Based Restitution of 3D Images on Legacy Consumer Mobile Devices

Touradj Ebrahimi, Jong Seok Lee, Lutz Goldmann, Martin Rerabek

While 3D display technologies are already widely available for cinema and home or corporate use, only a few portable devices currently feature 3D display capabilities. Moreover, the large majority of 3D display solutions rely on binocular perception. In th ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

A Comprehensive Database and Subjective Evaluation Methodology for Quality of Experience in Stereoscopic Video

Touradj Ebrahimi, Francesca De Simone, Lutz Goldmann

2010

Gesture and Touch Controlled Video Player Interface for Mobile Devices

Touradj Ebrahimi, Francesca De Simone

2010

The VISNET II DVC codec: architecture, tools and performance

Touradj Ebrahimi, Frédéric Dufaux

This paper introduces the VISNET II DVC codec. This co-dec achieves very high RD performance thanks to the efficient combination of many state-of-the-art coding tools into a fully practical video codec. Experimental results show that the proposed DVC codec ...

2010

H.264/AVC video database for the evaluation of quality metrics

Touradj Ebrahimi, Francesca De Simone

2010

Impact of Acquisition Distortion on the Quality of Stereoscopic Images

Touradj Ebrahimi, Francesca De Simone, Lutz Goldmann

2010

Encoder and Decoder Side Global and Local Motion Estimation for Distributed Video Coding

Touradj Ebrahimi, Frédéric Dufaux

In this paper, we propose a new Distributed Video Coding (DVC) architecture where motion estimation is performed both at the encoder and decoder, effectively combining global and local motion models. We show that the proposed approach improves significantl ...

2010

Subjective evaluation of scalable video coding for content distribution

Touradj Ebrahimi, Engin Kurutepe, Francesca De Simone, Jong Seok Lee

This paper investigates the influence of the combination of the scalability parameters in scalable video coding (SVC) schemes on the subjective visual quality. We aim at providing guidelines for an adaptation strategy of SVC that can select the optimal sca ...

2010

Object-based Tag Propagation for Semi-automatic Annotation of Images

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Jong Seok Lee, Lutz Goldmann

Over the last few years, social network systems have greatly increased users’ involvement in online content creation and annotation. Since such systems usually need to deal with a large amount of multimedia data, it becomes desirable to realize an interact ...

2010

3D Object Duplicate Detection for Video Retrieval

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Jong Seok Lee, Lutz Goldmann

Content-based video retrieval has become a very active research area in the last decade due to the increasing number of video shared on social networks such as YouTube and Daily-Motion. While most of the content-based video retrieval approaches employ visu ...

2010

Social Game Epitome versus Automatic Visual Analysis

Touradj Ebrahimi, Ivan Ivanov, Péter Vajda, Lutz Goldmann

2010

A Framework for the Validation of Privacy Protection Solutions in Video Surveillance

Touradj Ebrahimi, Frédéric Dufaux

The issue of privacy protection in video surveillance has drawn a lot of interest lately. However, thorough performance analysis and validation is still lacking, especially regarding the fulfillment of privacy-related requirements. In this paper, we put fo ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

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