Publications by Lutz Goldmann | EPFL Graph Search

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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 ...

As 3D image and video content has gained significant popularity, subjective 3D quality assessment has become an important issue for the creation, processing, and distribution of high quality 3D content. Reliable subjective quality assessment of 3D content ...

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 ...

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 ...

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 ...

Video transcoding is an important step to enable interoperability between different networks, terminals, applications, and services for video communication. This paper studies the influence of typical video transcoding artifacts due to frame rate reduction ...

In the past few years sharing photos within social networks has become very popular. In order to make these huge collections easier to explore, images are usually tagged with representative keywords such as persons, events, objects, and locations. In order ...

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 ...

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 ...

In this paper, we consider the evaluation of graph-based object duplicate detection. Several applications require accurate and efficient object duplicate detection methods, such as automatic video and image tag propagation, video surveillance, and high lev ...

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 ...

This paper describes the details and the results of the subjective quality evaluation performed at EPFL, as a contribution to the effort of the joint collaborative team on video coding (JCT-VC) for the definition of the high efficiency video coding (HEVC) ...

Spatial region (image) segmentation is a fundamental step for many computer vision applications. Although many methods have been proposed, less work has been done in developing suitable evaluation methodologies for comparing different approaches. The main ...

The study presented in this paper aims at quantifying the empirical limits of JPEG optimization, when the compressed stream is standard compliant and only the quantization tables are optimized. Image-dependent quantization tables, which minimize the bitrat ...

In this paper, we analyze the inﬂuence of temporal asyn- chrony on the subjective quality of stereoscopic video. Based on our recently created 3D video database, different levels of asynchrony were simulated and a comprehensive subjective test was conducte ...

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 ...

Lutz Goldmann

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

Paired comparison-based subjective quality assessment of stereoscopic images

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

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

Omnidirectional object duplicate detection

Impact of video transcoding artifacts on the subjective quality

Geotag Propagation in Social Networks Based on User Trust Model

Social Game Epitome versus Automatic Visual Analysis

3D Object Duplicate Detection for Video Retrieval

Analysis of the Limits of Graph-Based Object Duplicate Detection

Towards reliable and reproducible 3D video quality assessment

Towards High Efficiency Video Coding: Subjective Evaluation of Potential Coding Technologies

Towards Fully Automatic Image Segmentation Evaluation

Let Epitome summarize your photo collection!

On the Limits of Perceptually Optimized JPEG

Multimodal Person Search Combining Information Fusion and Relevance Feedback

Temporal Synchronization in Stereoscopic Video: Influence on Quality of Experience and Automatic Asynchrony Detection

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

Subjective evaluation of JPEG XR image compression

Impact of Acquisition Distortion on the Quality of Stereoscopic Images