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Displaying 1-48 out of 48 total
Where Is the User in Multimedia Retrieval?
Found in: IEEE MultiMedia
By Marcel Worring,Paul Sajda,Simone Santini,David A. Shamma,Alan F. Smeaton,Qiang Yang
Issue Date:October 2012
pp. 6-10
What started as a field with an emphasis on optimally serving users' interactive information needs has now become dominated by methods that focus on improving the mean average precision (MAP) of a clearly defined task disconnected from its application. Wit...
 
Watersnakes: Energy-Driven Watershed Segmentation
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Hieu Tat Nguyen, Marcel Worring, Rein van den Boomgaard
Issue Date:March 2003
pp. 330-342
<p><b>Abstract</b>—The watershed algorithm from mathematical morphology is powerful for segmentation. However, it does not allow incorporation of a priori information as segmentation methods that are based on energy minimization. In parti...
 
Multimedia Grand Challenge 2012
Found in: IEEE MultiMedia
By Yushi Jing,Go Irie,Marcel Worring
Issue Date:January 2013
pp. 2-6
The Multimedia Grand Challenge is a recurring event at the ACM Multimedia Conference series. During this event, delegates from various industries define a number of challenges that they consider of interest from both a business and scientific perspective, ...
 
VAST Challenge 2012: Interactively finding anomalies in geo-temporal multivariate data
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Gosia Migut,Justin van Wees,Diederik Bakker,Bart de Goede,Haska Steltenphol,Nick Oude Lenferink,Marcel Worring
Issue Date:October 2012
pp. 297-298
In this paper we describe the tool we developed to solve the VAST 2012 Challenge. We present how an expert can online analyze huge amounts of multivariate data in space and time. The visual components and the interaction between the system and the user are...
 
The spatiotemporal multivariate hypercube for discovery of patterns in event data
Found in: 2012 IEEE Conference on Visual Analytics Science and Technology (VAST)
By Fred Olislagers,Marcel Worring
Issue Date:October 2012
pp. 235-236
Event data can hold valuable decision making information, yet detecting interesting patterns in this type of data is not an easy task because the data is usually rich and contains spatial, temporal as well as multivariate dimensions. Research into visual a...
 
Multimedia in Forensics, Security, and Intelligence
Found in: IEEE Multimedia
By Sebastiano Battiato,Sabu Emmanuel,Adrian Ulges,Marcel Worring
Issue Date:January 2012
pp. 17-19
With the proliferation of multimedia data, it has become necessary to secure this content from illegal use, efficiently detect and reconstruct illegal activities from it, and use it as a source of intelligence. Serious challenges arise from the sheer data ...
 
Annotating images by harnessing worldwide user-tagged photos
Found in: Acoustics, Speech, and Signal Processing, IEEE International Conference on
By Xirong Li, Cees G.M. Snoek, Marcel Worring
Issue Date:April 2009
pp. 3717-3720
Automatic image tagging is important yet challenging due to the semantic gap and the lack of learning examples to model a tag's visual diversity. Meanwhile, social user tagging is creating rich multimedia content on the web. In this paper, we propose to co...
 
VideOlympics: Real-Time Evaluation of Multimedia Retrieval Systems
Found in: IEEE Multimedia
By Cees G.M. Snoek, Marcel Worring, Ork de Rooij, Koen E.A. van de Sande, Rong Yan, Alexander G. Hauptmann
Issue Date:January 2008
pp. 86-91
Video search is an experience for the senses. As a result, traditional information retrieval metrics can't fully measure the quality of a video search system. To provide a more interactive assessment of today's video search engines, the authors have organi...
 
High-Performance Distributed Video Content Analysis with Parallel-Horus
Found in: IEEE Multimedia
By Frank J. Seinstra, Jan-Mark Geusebroek, Dennis Koelma, Cees G.M. Snoek, Marcel Worring, Arnold W.M. Smeulders
Issue Date:October 2007
pp. 64-75
As the world uses more digital video that requires greater storage space, Grid computing is becoming indispensable for urgent problems in multimedia content analysis. Parallel-Horus, a support tool for applications in multimedia Grid computing, lets users ...
 
Interactive Adaptive Movie Annotation
Found in: IEEE Multimedia
By Jeroen Vendrig, Marcel Worring
Issue Date:July 2003
pp. 30-37
<p>Effectively labeling the visual content of movies is essential for annotation. We present the interactive and adaptive i-Notation system, which describes actors' names, automatically processes multimodal information sources, and deals with availab...
 
Genre-Based Search through Biomedical Images
Found in: Pattern Recognition, International Conference on
By Jan-Mark Geusebroek, Minh Anh Hoang, Jan van Gemert, Marcel Worring
Issue Date:August 2002
pp. 10271
We exploit the retrieval of visual information from biomedical scientific publication databases. Therefore, we consider the use of domain specific genres to automatically subdivide large image databases into smaller, consistent parts. Combination with Late...
 
Granulometric Analysis of Document Images
Found in: Pattern Recognition, International Conference on
By Andrew D. Bagdanov, Marcel Worring
Issue Date:August 2002
pp. 10468
We report on new form of multivariate granulometries based on rectangles of varying size and aspect ratio. These granulometries are used for describing visual similarity between document images. Rectangular granulometries are used to probe the layout struc...
 
Fine-Grained Document Genre Classification Using First Order Random Graphs
Found in: Document Analysis and Recognition, International Conference on
By Andrew D. Bagdanov,Marcel Worring
Issue Date:September 2001
pp. 0079
Abstract: We approach the general problem of classifying machine-printed documents into genres. Layout is a crit-cal factor in recognizing fine-grained genres, as document content features are similar. Document genre is determined from the layout structure...
 
EVALUATION OF LOGICAL STORY UNIT SEGMENTATION IN VIDEO SEQUENCES
Found in: Multimedia and Expo, IEEE International Conference on
By Jeroen Vendrig, Marcel Worring
Issue Date:August 2001
pp. 225
We present results of an evaluation of several existing Logical Story Unit segmentation methods based on film theory. Three types of methods known from video processing literature were evaluated. An unprecedented amount of 8 hours for 6 different videos we...
 
MODEL BASED INTERACTIVE STORY UNIT SEGMENTATION
Found in: Multimedia and Expo, IEEE International Conference on
By Jeroen Vendrig, Marcel Worring, Arnold W.M. Smeulders
Issue Date:August 2001
pp. 223
Logical Story Unit segmentation in general domains, such as movies and television series, requires interaction between experts and automatic tools. We present an interaction model that allows users, who are non-experts in the field of video processing, to ...
 
Occlusion robust adaptive template tracking
Found in: Computer Vision, IEEE International Conference on
By Hieu T. Nguyen, Marcel Worring, Rein van den Boomgaard
Issue Date:July 2001
pp. 678
We propose a new method for tracking rigid objects in image sequences using template matching. A Kalman filter is used to make the template adapt to changes in object orientation or illumination. This approach is novel since the Kalman filter has been used...
 
Content-Based Image Retrieval at the End of the Early Years
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Arnold W.M. Smeulders, Marcel Worring, Simone Santini, Amarnath Gupta, Ramesh Jain
Issue Date:December 2000
pp. 1349-1380
<p><b>Abstract</b>—The paper presents a review of 200 references in content-based image retrieval. The paper starts with discussing the working conditions of content-based retrieval: patterns of use, types of pictures, the role of semanti...
 
Multifeature Object Tracking Using a Model-Free Approach
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Hieu T. Nguyen, Marcel Worring
Issue Date:June 2000
pp. 1145
In this contribution, we introduce a new model-free method for object tracking. The tracking is posed as a segmentation problem which we solve using the watershed algorithm. A framework is defined to compute the required topographic surface from distances ...
 
Segmentation of Color Documents by Line Oriented Clustering Using Spatial Information
Found in: Document Analysis and Recognition, International Conference on
By Marcel Worring, Leon Todoran
Issue Date:September 1999
pp. 67
In this contribution we introduce a new method for global segmentation of color documents with a struc-ture based on text frames and pictures. It is based on an extensive analysis of the expected shape of clusters in RGB-color space. The method provides an...
 
Motion Statistics Based Region Merging in Video Sequences
Found in: Multimedia Computing and Systems, International Conference on
By Hieu T. Nguyen, Marcel Worring, Anuj Dev
Issue Date:June 1999
pp. 9762
An important step in most techniques for video segmentation is the merging of regions having similar motion. We propose a new motion-based similarity measure between regions that explicitly incorporates uncertainty in the estimation of motion parameters. A...
 
From Linear to Non-Linear Reading: A Case Study to Provide Internet Access to Paper Documents
Found in: Document Analysis and Recognition, International Conference on
By Marcel Worring, Arnold W.M. Smeulders
Issue Date:August 1997
pp. 273
In this paper we consider the construction of hypertext from scanned paper material. We consider textual links as well as text-figure and text-figure_label links. This process of hypertext creation encompasses a number of document structures and methods fo...
 
Digitized Circular Arcs: Characterization and Parameter Estimation
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Marcel Worring, Arnold W.M. Smeulders
Issue Date:June 1995
pp. 587-598
<p><it>Abstract</it>—The digitization of a circular arc causes an inherent loss of geometrical information. Arcs with slightly different local curvature or position may lead to exactly the same digital pattern. In this paper we give a cha...
 
MediaTable: Interactive Categorization of Multimedia Collections
Found in: IEEE Computer Graphics and Applications
By Ork de Rooij,Jarke J van Wijk,Marcel Worring
Issue Date:September 2010
pp. 42-51
Many multimedia collections include only metadata such as date created and file size and remain largely unannotated. So, browsing them is cumbersome. Automatic content-analysis techniques yield metadata in the form of high-level content-based descriptors. ...
 
Efficient targeted search using a focus and context video browser
Found in: ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
By Marcel Worring, Ork De Rooij
Issue Date:November 2012
pp. 1-19
Currently there are several interactive content-based video retrieval techniques and systems available. However, retrieval performance depends heavily on the means of interaction. We argue that effective CBVR requires efficient, specialized user interfaces...
     
Third ACM international workshop on multimedia in forensics and intelligence (MiFor 2011)
Found in: Proceedings of the 19th ACM international conference on Multimedia (MM '11)
By Adrian Ulges, Marcel Worring, Sabu Emmanuel, Sebastiano Battiato
Issue Date:November 2011
pp. 605-606
This paper introduces the context of the workshop and the associated papers.
     
Personalizing automated image annotation using cross-entropy
Found in: Proceedings of the 19th ACM international conference on Multimedia (MM '11)
By Arnold W.M. Smeulders, Cees G.M. Snoek, Efstratios Gavves, Marcel Worring, Xirong Li
Issue Date:November 2011
pp. 233-242
Annotating the increasing amounts of user-contributed images in a personalized manner is in great demand. However, this demand is largely ignored by the mainstream of automated image annotation research. In this paper we aim for personalizing automated ima...
     
Semi-interactive tracing of persons in real-life surveillance data
Found in: Proceedings of the 2nd ACM workshop on Multimedia in forensics, security and intelligence (MiFor '10)
By Marcel Worring, Michael J. Metternich
Issue Date:October 2010
pp. 43-48
To increase public safety, more and more surveillance cameras have been placed over the years. To deal with the resulting information overload many methods have been deployed, focusing either on real-time crime detection or post-incident investigation. In ...
     
Second ACM international workshop on multimedia in forensics, security and intelligence (MiFor 2010)
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Adrian Ulges, Marcel Worring, Sabu Emmanuel, Sebastiano Battiato
Issue Date:October 2010
pp. 1741-1742
This paper introduces the context of the workshop and the associated papers.
     
MediaTable: a tool for categorizing multimedia collections
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Marcel Worring, Ork de Rooij
Issue Date:October 2010
pp. 1633-1636
In this technical demonstration, we present MediaTable, our interactive multimedia collection search and categorization tool. MediaTable allows users to search through, and categorize a multimedia collection with ease by employing several familiar interfac...
     
Genre-specific semantic video indexing
Found in: Proceedings of the ACM International Conference on Image and Video Retrieval (CIVR '10)
By Jun Wu, Marcel Worring
Issue Date:July 2010
pp. 266-273
In many applications, we find large video collections from different genres where the user is often only interested in one or two specific video genres. So, when users are querying the system with a specific semantic concept, they are likely aiming a genre...
     
Unsupervised multi-feature tag relevance learning for social image retrieval
Found in: Proceedings of the ACM International Conference on Image and Video Retrieval (CIVR '10)
By Cees G. M. Snoek, Marcel Worring, Xirong Li
Issue Date:July 2010
pp. 10-17
Interpreting the relevance of a user-contributed tag with respect to the visual content of an image is an emerging problem in social image retrieval. In the literature this problem is tackled by analyzing the correlation between tags and images represented...
     
Multimedia in forensics
Found in: Proceedings of the seventeen ACM international conference on Multimedia (MM '09)
By Marcel Worring, Rita Cucchiara
Issue Date:October 2009
pp. 1153-1154
This workshop, as the first of its kind, aims to bring together researchers and industrial practitioners interested in large-scale multimedia data retrieval and mining. The workshop will provide a venue for the participants to explore a variety of aspects ...
     
Multi-target tracking in time-lapse video forensics
Found in: Proceedings of the First ACM workshop on Multimedia in forensics (MiFor '09)
By Marcel Worring, Paul Koppen
Issue Date:October 2009
pp. 61-66
To help an officer to efficiently review many hours of surveillance recordings, we develop a system of automated video analysis. We introduce a multi-target tracking algorithm that operates on recorded video. Apart from being robust to visual challenges (l...
     
MediaMill: guiding the user to results using the ForkBrowser
Found in: Proceeding of the ACM International Conference on Image and Video Retrieval (CIVR '09)
By Cees G. M. Snoek, Marcel Worring, Ork de Rooij
Issue Date:July 2009
pp. 1-1
In this technical demonstration we showcase the MediaMill Semantic Video Search Engine. It allows usage of multiple query methods embedded into a single browsing environment while guiding the user to better results by using a novel active learning strategy...
     
Learning tag relevance by neighbor voting for social image retrieval
Found in: Proceeding of the 1st ACM international conference on Multimedia information retrieval (MIR '08)
By Cees G.M. Snoek, Marcel Worring, Xirong Li
Issue Date:October 2008
pp. 1-1
Social image retrieval is important for exploiting the increasing amounts of amateur-tagged multimedia such as Flickr images. Since amateur tagging is known to be uncontrolled, ambiguous, and personalized, a fundamental problem is how to reliably interpret...
     
MediaMill: fast and effective video search using the forkbrowser
Found in: Proceedings of the 2008 international conference on Content-based image and video retrieval (CIVR '08)
By Cees G.M. Snoek, Marcel Worring, Ork de Rooij
Issue Date:July 2008
pp. 569-570
In this technical demonstration we showcase the MediaMill ForkBrowser for video retrieval. It embeds multiple query methods into a single browsing environment. We show that users can switch query methods on demand without the need to adapt to a different i...
     
Balancing thread based navigation for targeted video search
Found in: Proceedings of the 2008 international conference on Content-based image and video retrieval (CIVR '08)
By Cees G.M. Snoek, Marcel Worring, Ork de Rooij
Issue Date:July 2008
pp. 569-570
Various query methods for video search exist. Because of the semantic gap each method has its limitations. We argue that for effective retrieval query methods need to be combined at retrieval time. However, switching query methods often involves a change i...
     
MediaMill: semantic video search using the RotorBrowser
Found in: Proceedings of the 6th ACM international conference on Image and video retrieval (CIVR '07)
By Cees G. M. Snoek, Marcel Worring, Ork de Rooij
Issue Date:July 2007
pp. 649-649
In this technical demonstration we showcase the current version of the MediaMill system[1], a search engine that facilitates access to news video archives at a semantic level. The core of the system is a thesaurus of 500 automatically detected semantic con...
     
Navigating on handheld displays: Dynamic versus static peephole navigation
Found in: ACM Transactions on Computer-Human Interaction (TOCHI)
By Marcel Worring, Peter Werkhoven, Sumit Mehra
Issue Date:December 2006
pp. 448-457
Handheld displays leave little space for the visualization and navigation of spatial layouts representing rich information spaces. The most common navigation method for handheld displays is static peephole navigation: The peephole is static and we move the...
     
The mediamill large.lexicon concept suggestion engine
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Bouke Huurnink, Cees G. M. Snoek, Dennis C. Koelma, Jan C. van Gemert, Marcel Worring, Ork de Rooij
Issue Date:October 2006
pp. 785-786
In this technical demonstration we show the current version of the MediaMill system, a search engine that facilitates access to news video archives at a semantic level. The core of the system is a lexicon of 436 automatically detected semantic concepts. To...
     
The challenge problem for automated detection of 101 semantic concepts in multimedia
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Arnold W. M. Smeulders, Cees G. M. Snoek, Jan C. van Gemert, Jan-Mark Geusebroek, Marcel Worring
Issue Date:October 2006
pp. 421-430
We introduce the challenge problem for generic video indexing to gain insight in intermediate steps that affect performance of multimedia analysis methods, while at the same time fostering repeatability of experiments. To arrive at a challenge problem, we ...
     
Semantic indexing and retrieval of video
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Cees G. M. Snoek, Marcel Worring
Issue Date:October 2006
pp. 13-13
This tutorial lays the foundation for the exciting new horizons that arise when multimedia data can automatically be indexed by its semantic content. It will cover basic video analysis techniques, explain the different methods for video indexing, and explo...
     
Similarity learning via dissimilarity space in CBIR
Found in: Proceedings of the 8th ACM international workshop on Multimedia information retrieval (MIR '06)
By Arnold W. M. Smeulders, Giang P. Nguyen, Marcel Worring
Issue Date:October 2006
pp. 107-116
In this paper, we introduce a new approach to learn dissimilarity for interactive search in content based image retrieval. In literature, dissimilarity is often learned via the feature space by feature selection,feature weighting or a parameterized functio...
     
Learning rich semantics from news video archives by style analysis
Found in: ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
By Alexander G. Hauptmann, Cees G. M. Snoek, Marcel Worring
Issue Date:May 2006
pp. 91-108
We propose a generic and robust framework for news video indexing which we founded on a broadcast news production model. We identify within this model four production phases, each providing useful metadata for annotation. In contrast to semiautomatic index...
     
Scenario optimization for interactive category search
Found in: Proceedings of the 7th ACM SIGMM international workshop on Multimedia information retrieval (MIR '05)
By Giang P. Nguyen, Marcel Worring
Issue Date:November 2005
pp. 159-166
Most of the existing work in interactive content based retrieval concentrates on machine learning methods for effective use of relevance feedback. On the other end of the spectrum, the information visualization community focusses on effective methods for c...
     
Early versus late fusion in semantic video analysis
Found in: Proceedings of the 13th annual ACM international conference on Multimedia (MULTIMEDIA '05)
By Arnold W. M. Smeulders, Cees G. M. Snoek, Marcel Worring
Issue Date:November 2005
pp. 399-402
Semantic analysis of multimodal video aims to index segments of interest at a conceptual level. In reaching this goal, it requires an analysis of several information streams. At some point in the analysis these streams need to be fused. In this paper, we c...
     
MediaMill: exploring news video archives based on learned semantics
Found in: Proceedings of the 13th annual ACM international conference on Multimedia (MULTIMEDIA '05)
By Cees G. M. Snoek, Dennis Koelma, Frank Seinstra, Giang P. Nguyen, Jan van Gemert, Jan-Mark Geusebroek, Marcel Worring, Ork de Rooij
Issue Date:November 2005
pp. 225-226
In this technical demonstration we showcase the MediaMill system. A search engine that facilitates access to news video archives at a semantic level. The core of the system is an unprecedented lexicon of 100 automatically detected semantic concepts. Based ...
     
Internet access to scanned paper documents
Found in: Proceedings of the third ACM conference on Digital libraries (DL '98)
By Arnold W. M. Smeulders, Marcel Worring
Issue Date:June 1998
pp. 313-314
This presentation focuses on the strategic design planning and vision creation process for the E-Quarium, the online complement to the Monterey Bay Aquarium. More than six months of informed investigation and analysis resulted in an ambitious redesign of t...
     
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