| || Virtual walkthrough system for library |
Author :Goswami, Sumit;Agrawal, Hemu;Ashok Kumar;Saxena, S.C.;Singh, Mohinder
Source: DESIDOC Bulletin of Information Technology :26(1) ; 2006 ; pp.03-16
Abstract : The world wide web infrastructure has brought a revolutionary change in the organisation and presentation of information. Such a change resulted in the concept of virtual libraries. Of the numerous virtual library applications, we envision a virtual walkthrough application. Here, a user, with access to the internet or intranet, can explore a specific place of interest without having to travel physically. The place of interest is modelled as a virtual world, containing a vast number of virtual objects. This paper describes the two modules of our project 'virtual walkthrough for Defence Science Library': (a) Module 1—General Browsing, provides the user with the interface to view the virtual tour of the DSL that allows users to visit the library and its services virtually through the web and (b) Module 2—Guided Tour, complements the text-based search of the user for the books with an extended multimedia interface for retrieval of books in the library.
Keywords : Virtual walkthrough;DRDO;DESIDOC;File formats;Defence science library;Video retrieval
| || Building digital libraries: An overview |
Author :Arora, Jagdish
Source: DESIDOC Bulletin of Information Technology :21(6) ; 2001 ; pp.03-24
Abstract : Tools, techniques and protocols necessary for building up digital libraries have now fully evolved with computing power that allows parallel processing, multitasking, parallel consultation and parallel knowledge navigation and sohare tools that facilitate artificial intelligence and interadivity. Coincided with availability of sofhvare, hardware and networking technology, the advent of world wide web 0its, ever incr easing usage and highly evolved browsers have paved the way for creation of digital libraries. With rapid developments in technologies necessary for developing digital libraries, the world of digital information resources has expanded rapidly and exponentially. Increasing number of publishers are using the internet as a global way to offer their publications to the international community of scientists and technologists. With the technology available at an effordable cost, the libraries are initiating small digitisation projects as an individual library or as a group of libraries. Building-up digital collection and the infrastructure required to access them is a challenge that every library has to deal with. The article delves into technological evolution, cultural revolution and contents enrichment that led to revolution in growth and development of digital libraries. The artide has two distinct parts, while the first part deals with various aspects of building, accessing and organising digital resources and collection, the second part elaborates on the process, technology, formats, compression techniques and tools used in digital imaging. The article describes optical character recognition (OCR) and advocates for hybrid solution for preservation of digital information.
Keywords : Digital library;Pricing model;File formats;Electronic subscription;Print subscription