Optimised grab method of images for the manipulation of virtual objects Online publication date: Mon, 31-Mar-2014
by Brahim Nini
International Journal of Networking and Virtual Organisations (IJNVO), Vol. 12, No. 2, 2013
Abstract: This paper describes a new method in IBR context of photographing and storing images of real objects. It is a movie-based solution aiming at simulating object's manipulation. The solution uses a specific linear structure to store the frames corresponding to different viewing directions of an object through a virtual sphere. This method is an optimisation of a previous one (Nini and Batouche, 2007). Its main advantage is that it reduces considerably the number of images without any loss in the rendering quality. The main idea is based on the proportion that links the perimeters of the horizontal planes resulting from the split of the virtual sphere to the one of its centre. Such proportion is used to estimate the step angle specific to each level which defines the positions that the real camera takes for the grab operation. A simulated movement is then equivalent to orbiting a virtual camera around the object and projecting grabbed images. Based on the suggested method, a new algorithm is proposed for the images' retrieval process.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Networking and Virtual Organisations (IJNVO):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook