Vision system computer modeling apparatus including interaction with real scenes with respect to perspective and spatial relationship as measured in real-time

• US 6,535,210 B1
• Filed: 06/07/1995
• Issued: 03/18/2003
• Est. Priority Date: 06/07/1995
• Status: Expired due to Fees

• Current Assignee: Geovector Corporation
• Original Assignee: Geovector Corporation
• Inventors: Ellenby, John, Ellenby, Thomas, Ellenby, Peter
• Primary Examiner(s): Nguyen, Phu K.
• Application Number:
  US08/482,944
• Time in Patent Office: 2,841 Days
• Field of Search: 364/474.05, 364/419.03, 364/474.24, 358/909.1, 395/94, 395/100, 395/119, 395/125, 395/127, 345/419, 345/420, 345/619, 345/629
• US Class Current: 345/419
• CPC Class Codes: G06T 15/20 Perspective computation
• CPC Class Codes: G06T 19/20 Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• CPC Class Codes: G06T 2215/16 Using real world measurements to influence rendering
• CPC Class Codes: G06T 2219/2021 Shape modification

Abstract

A vision system for use in modeling an environment or scene is presented. A user views a scene through an electronic camera and is presented with CAD type functions for creating graphical representation of the scene. As the apparatus has knowledge of where it is with respect to objects in the scene and with respect to where it has been previously, the model perspective and size can be continuously updated to reflect the view of the scene as the camera addresses from any point in space.

Claims

1. A computer vision system modeling apparatus comprised of:

a) an electronic camera in communication with;

b) a computer in communication with each of the following;

c) a position determining means;

d) an attitude determining means;

e) a range determining means; and

f) a display,

said electronic camera having an imaging axis and an image plane, the imaging axis defining a system pointing direction, the intersection of the imaging axis and image plane defining a position reference point;

said computer arranged to run CAD software in conjunction with software to communicate with said position, attitude and range determining means and said display;

said position determining means arranged to determine the position of the position reference point,

said attitude determining means arranged to determine the system pointing direction,

said range determining means arranged to determine the distance from the camera to an object in a scene being addressed,

said display having a substantially planar image field, the normal direction of the image field being aligned to the pointing direction.

2. A computer vision system apparatus of claim 1, said computer being comprised of a computer model which is responsive to the position and attitude determining means of the apparatus.

3. A computer vision system apparatus of claim 2,

said response being a translation of perspective to agree with the true perspective of the scene being addressed from the camera viewpoint.