MARKERLESS AUGMENTED REALITY SYSTEM AND METHOD USING PROJECTIVE INVARIANT
First Claim
1. A markerless augmented reality system receiving an image from an image device, the markerless augmented reality system comprising:
- an image processing unit to separate the image acquired by the image device and to extract feature points;
a plane extraction unit to extract a plane using a plane projective invariant of the feature points; and
an augmented reality provision unit to provide augmented reality based on the extracted plane.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein are a markerless augmented reality system and method for extracting feature points within an image and providing augmented reality using a projective invariant of the feature points. The feature points are tracked in two images photographed while varying the position of an image acquisition unit, a set of feature points satisfying a plane projective invariant is obtained from the feature points, and augmented reality is provided based on the set of feature points. Accordingly, since the set of feature points satisfies the plane projective invariant even when the image acquisition unit is moved and functions as a marker, a separate marker is unnecessary. In addition, since augmented reality is provided based on the set of feature points, a total computation amount is decreased and augmented reality is more efficiently provided.
-
Citations
19 Claims
-
1. A markerless augmented reality system receiving an image from an image device, the markerless augmented reality system comprising:
-
an image processing unit to separate the image acquired by the image device and to extract feature points; a plane extraction unit to extract a plane using a plane projective invariant of the feature points; and an augmented reality provision unit to provide augmented reality based on the extracted plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A markerless augmented reality system using a projective invariant receiving an image from an image device, the markerless augmented reality system comprising:
-
an image processing unit to extract and track feature points from the plurality of images acquired by the image device; a plane extraction unit to obtain a set of feature points satisfying a plane projective invariant from the tracked feature points and to extract a plane; and an augmented reality provision unit to provide augmented reality based on the set of feature points satisfying the plane projective invariant. - View Dependent Claims (10, 11, 12, 13, 14)
-
-
15. A markerless augmented reality method using a projective invariant, the markerless augmented reality method comprising:
-
photographing an object using an image device and acquiring an initial image It; equally separating the acquired initial image It and extracting feature points; moving the image device and acquiring a next image lt+1; tracking the extracted feature points in the next and obtaining a set of feature points satisfying a plane projective invariant; and providing augmented reality based on the set of feature points satisfying the plane projective invariant. - View Dependent Claims (16, 17, 18, 19)
-
Specification