A Video Browsing Tool for Content Management in Postproduction (original) (raw)

Interactive Multi-user Video Retrieval Systems

Multimedia Tools and Applications, 2012

In this paper we present two interactive multi-user systems for video search and browsing. The first is composed by web applications which allows multiuser interaction in a distributed environment; such applications are based on the Rich Internet Application paradigm, designed to obtain the levels of responsiveness and interactivity typical of a desktop application. The second system implements a multi-user collaborative application within a single location, exploiting multi-touch devices. Both systems use the same backend, based on a service oriented architecture (SOA) that provides services for automatic and manual annotation, and an ontology-based video search and browsing engine. Ontology-based browsing let users to inspect the content of video collections; user queries are expanded through ontology reasoning. User-centered field trials of the systems, conducted to assess the user experience and satisfaction, have shown that the approach followed to design these interfaces is extremely appreciated by professional archivists and people working on multimedia.

User Strategies in Video Retrieval: A Case Study

2004

In this paper we present the results of a user study that was conducted in combination with a submission to TRECVID 2003. Search behavior of students querying an interactive video-retrieval system was analyzed. 242 Searches by 39 students on 24 topics were assessed.Questionnaire data, logged user actions on the system, and a quality measure of each search provided by TRECVID were studied. Analysis of the results at various stages in the retrieval process suggests that retrieval based on transcriptions of the speech in video data adds more to the average precision of the result than content-based retrieval. The latter is particularly useful in providing the user with an overview of the dataset and thus an indication of the success of a search.

Connecting Information as Navigation Paths for Exploring Digital Video Collections

VAST: International Symposium on …, 2011

The way information is presented to users is of great importance in today’s digital world. This is especially true for data collections that are rich in information that is not always easily understood. In this paper we present a solution for accessing digital video collections using specially created interfaces for data exploration. We developed a data navigation model that is used to establish links between data records and created different web-based tools for using these connections as paths that users can follow in their exploration of the content. We argue that by providing a set of interactive tools for data exploration we can increase the amount of information that is passed from data to users. We show how different interface solutions for accessing informative digital collections can be used to improve users experience of exploring the data and help them make effective use of acquired information.