Browse Prior Art Database

Compressive transmission of 3D data

IP.com Disclosure Number: IPCOM000013558D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2003-Jun-18
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Abstract

Disclosed is a method and system for transmitting three-dimentional(3D) data in a compressive representation and for sharing 3D data with several people through computer network. This method and system can be applied to a communication tool sharing 3D data through network, for example, networked meeting using 3D data and collaborative design of 3D data.

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Compressive transmission of 3D data

  Disclosed is a method and system for transmitting
three-dimentional(3D) data in a compressive representation and
for
sharing 3D data with several people through computer network.
This
method and system can be applied to a communication tool sharing
3D
data through network, for example, networked meeting using 3D
data and
collaborative design of 3D data.

A 3D sketch system, one element of the invention, is defined as
follows. It recieves a sequence of two types of data (view data and
stroke data) from a mouse and a tablet, or through network. It has a
function to transmit the recieved data to other computers through
network. It has a function to generate and modify a 3D model using
the recieced data and to display the 3D model on a screen. The view
data is defined as a position and direction of a eye in 3D space, and
it is usually represented by a 4X4 matrix. The stroke data is defined
as a two-dimensional curve or poly-line drawn on a screen, and it is
usually represented by a polynominal curve representation or a
poly-line representation. One example of the 3D sketch system is
presented in a reference [*].

Amount of the data composed of the view data and the stroke data is
significantly smaller than the 3D data represented by a triangular mesh.
A 3D model generated and modified by the 3D sketch system is uniquely
represented by a sequence of the two types of data.

Think about the situation that the 3D sketch system is working on the
several computers...