Interactive
Virtual Heritage Documentation using Image and Video Based Modelling and rendering
The digital documentation of virtual heritage poses many
computational challenges primarily due to the multiplicity of media and also the inherent
intricacies that are present. Traditional methods of synthetic image generation rely on
the use of geometric modeling and rendering of scenes and the use of animation for time
varying display. While rendering techniques abound with colour, texture, material and
lighting effects etc., realism is rather difficult due to the need for capturing all the
detail that is present in the original. Image based modeling and rendering refers to
techniques that generate new images from other images (typically images of the
original object), and also enable the creation of digital 3D models from images of
the original. These techniques have been used for the generation of scenes with dense
image-based 3D objects like forests, cities, not-rigid scenes and moving illuminations.
Obtaining inputs, preprocessing them and conditioning them for extraction of desired
models or rendering from different view points in varying environments are some of the
challenging issues being addressed these days. At the National Centre for Software
Technology (NCST) we have been carrying out some work in this area. This presentation will
briefly introduce the problem, review the state of the art and then present the work being
done at NCST.
Managing Electronic
Interactive Multimedia Publishing: A case Study by Arvind Jha
Paper
Encyclopedia
India is the largest electronic interactive multimedia database on Indian tourism. It
covers over 600 cities and almost 4000 sites within these cities. Historical monuments,
religious places, parks and later adventure sports, markets and bazaars, wildlife parks,
beaches, hill station, modern institutions, cultural centres and virtually any tourist
attraction throughout India is presented through text, images, sounds, videos and an
aesthetically pleasing and Indian context. India's history and demographic facts,
course ,music, cuisine, festivals are all part of this almost 4 giga-bytes (4000 million
bytes) database spread over 6 CD-ROM.
The two and half years span in developing this product have
been an eye-opener for the author in the context of electronic multimedia publishing. A
variety of problems, blind allays, mistakes, fumbles, wrong starts and all sorts of the
"unexpected" have raised their head at various stages. The challenge to take
them head-on and to dourly graphic with these situations has taught the author great
tenacity and made one wise to the process of multimedia interactive database
development.
This paper is a case study of the experiences involved in
developing such a large project. It details the problems encountered the solutions
attempted and conclusively shows that there is no alternative to detailed planning even
when one is sure that most planned events will run into problems. The requirements design
artists, historians, social scientists, archeologists and other personnel from non
computer-intensive fields. For a generation accustomed to interacting with and
manipulating "machines", this present a great challenge. the learning curve of
this process makes interesting reading.
Methodology of Multimedia
Production by Atul Pant
Paper
The World
multimedia refers to the integration of multiple media - such as visual imagery, text,
video, audio, sound and animation - which together can multiply the impact of the message.
The production of fine-quality, high-end interactive multimedia applications is the work
of a team of specialists from varied fields, whose efforts are coordinated by a project
leader. The prime roll the project leader is to keep the project on schedule and
on-budget.
The production of interactive multimedia applications
involves multiple steps. It can broadly be divided into - conceptualisation, defining
project goals and objectives, defining the target audience, defining the production
schedule, project, budgeting and copyright issues. Conters identification, selection,
development and acquisition is the next major task involved is developing a good
multimedia title. content refers to text, narration, graphics, colors backgrounds, videos
and animation. It has 'value'-usefulness and significance; and a 'cost' the monetary
price incurred to acquire or develop content.
Testing of a multimedia title is essential so that the
final application is a high quality product, not infested with bugs, technical snags,
inaccurate information or simple grammatical of typographical errors. The process of
evaluating (testing) and revising a multimedia application project is dynamic and
constant. It involves both internal and external evaluation. Use documentation is another
very important feature of high-end multimedia titles. This includes instructions for
installing system requirements, developing acknowledgements, copyrights technical support
and other information important for the user.
Finally the multimedia title has to be burnt on to a CD-ROM
for further reproduction and distribution.
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