Tools for visualizing and creating groundtruth and metadata are crucial for document image analysis research. In this paper we describe TrueViz LK00, KLCB01], which is a tool for visualizing and editing groundtruth/metadata. We rst describe the groundtruthing task and the requirements for any interactive groundtruthing tool. Next we describe the system design of TrueViz and discuss how a user c...

We present a dynamic programming algorithm for optimally solving the Cograph Editing problem on an n-vertex graph that runs in O(3n) time and uses O(2) space. In this problem, we are given a graph G = (V,E) and the task is to find a smallest possible set F ⊆ V × V of vertex pairs such that (V,E4F ) is a cograph (or P4-free graph), where 4 represents the symmetric difference operator. We also de...

The creation of a multimedia presentation is a non-trivial task. It involves skills that are not readily available to users and it requires support not generally available from authoring software. In order to understand the basic problems of multimedia authoring, this article considers the requirements for deening interactive, dynamic presentations. When contrasted against the facilities availa...

While several tools for simplifying the task of visualizing (SPARQL accessible) RDF data on the Web are available today, there is a lack of corresponding tools for exploiting standard HTML forms directly for RDF editing. The few related existing systems roughly fall in the categories of (a) applications that are not aimed at being reused as components, (b) form generators, which automatically c...

The process of building ontologies is a difficult task that involves collaboration between ontology developers and domain experts and requires an ongoing interaction between then. This collaboration is made more difficult, because they tend to use different tool sets, which can hamper this interaction. In this paper, we propose to decrease this distance between domain experts and ontology devel...

We present an intuitive, fast and accurate interactive segmentation method for visualizing and analyzing 3D medical images. Our method combines a general deformable subdivision-surface model with a novel sketch-line user initialization process. The model is simply and precisely initialized with a few quick sketch lines drawn across the width of the target object on several key slices of the vol...

Wikis promote work to be reviewed after publication, not before. This vision might not always t organizations where a common employee concern is that sharing work-in-progress may negatively a ect the assessments they receive. This might lead users to edit in distress, thus a ecting task performance, and may minimize their participation in wikis. On these premises, this work advocates for comple...

Exploring and editing colors in images is a common task in graphic design and photography. However, allowing for interactive recoloring while preserving smooth color blends in the image remains a challenging problem. We present LayerBuilder, an algorithm that decomposes an image or video into a linear combination of colored layers to facilitate color-editing applications. These layers provide a...

This paper describes the design and implementation of the MATE workbench, a program which provides support for flexible display and editing of XML annotations, and complex querying of a set of linked files. The workbench was designed to support the annotation of XML coded linguistic corpora, but it could be used to annotate any kind of data, as it is not dependent on any particular annotation s...

We present here GraphOnto, a software component and an API that allow the definition and editing of both standard-based and domain OWL ontologies and their use in multimedia information system components. In our working environment an OWL Upper Ontology that captures the MPEG-7 MDS is utilized and OWL domain ontologies extend the upper ontology with domain knowledge. The ontologies imported in ...