Wide-angle dewarping method and apparatus
First Claim
1. A method for providing perspective corrected images from at least one distorted image, the method comprising steps of:
- receiving said distorted image;
storing a portion of said distorted image;
transforming a set of control vectors to a set of control points that defines an area that associates said portion of said distorted image with a portion of a perspective corrected image;
transforming said portion of said distorted image associated with said area to said portion of said perspective corrected image using a global bivariate polynomial transformation;
displaying said portion of said perspective corrected image;
sensing inputted information; and
controlling the transformation and display of said perspective corrected image through said inputted information.
5 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for transforming wide angle video into perspective corrected viewing zones which either a single user or multiple users may select, orient and magnify. The present invention first captures a wide angle digital video input by any suitable means. The captured image is then stored in a suitable memory means so portions of the image may be selected at a later time. When a portion of the stored video is selected for viewing, a plurality of discrete viewing vectors in three dimensional space are chosen on the video input and transformed to a plurality of control points in a two dimensional plane or any other suitable surface. The area between these points which is still warped from the original wide angle image capture is then transformed to a perspective corrected field of view. The perspective corrected field of view is then displayed on a suitable displaying apparatus, such as a monitor or head mounted display.
-
Citations
35 Claims
-
1. A method for providing perspective corrected images from at least one distorted image, the method comprising steps of:
-
receiving said distorted image;
storing a portion of said distorted image;
transforming a set of control vectors to a set of control points that defines an area that associates said portion of said distorted image with a portion of a perspective corrected image;
transforming said portion of said distorted image associated with said area to said portion of said perspective corrected image using a global bivariate polynomial transformation;
displaying said portion of said perspective corrected image;
sensing inputted information; and
controlling the transformation and display of said perspective corrected image through said inputted information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
-
-
12. An apparatus for providing perspective corrected images from at least one distorted image, the apparatus comprising:
-
an input configured to receive said distorted image;
a memory, coupled to the input, configured to store a portion of said distorted image;
a processor, coupled to the memory, configured to transform a set of control vectors to a set of control points that defines an area that associates said portion of said distorted image with a portion of a perspective corrected image, the processor further configured to transform said portion of said distorted image associated with said area to said portion of said perspective corrected image using a global bivariate polynomial transformation;
a presentation mechanism, coupled to the memory, configured to present said portion of said perspective corrected image; and
a selection mechanism, coupled to the processor, configured to specify said set of control vectors.
-
-
23. A computer program product including:
-
a computer usable data carrier having computer readable code embodied therein for causing a computer to provide perspective corrected images from at least one distorted image, said computer readable code including;
computer readable program code configured to cause said computer to effect an input mechanism configured to receive said distorted image;
computer readable program code configured to cause said computer to effect a storage mechanism configured to store a portion of said distorted image received by the input mechanism;
computer readable program code configured to cause said computer to effect a transformation mechanism configured to transform a set of control vectors to a set of control points that defines an area that associates said portion of said distorted image with a portion of a perspective corrected image, the processor further configured to transform said portion of said distorted image associated with said area to said portion of said perspective corrected image using a global bivariate polynomial transformation;
computer readable program code configured to cause said computer to effect a presentation mechanism, configured to present said portion of said perspective corrected image generated by the transformation mechanism; and
computer readable program code configured to cause said computer to effect a selection mechanism configured to specify said set of control vectors.
-
Specification