Panoramic camera

• US 6,424,377 B1
• Filed: 07/11/2000
• Issued: 07/23/2002
• Est. Priority Date: 06/24/1996
• Status: Expired due to Term

• Current Assignee: Cedar Lane Technologies Inc.
• Original Assignee: Be Here Corporation
• Inventors: Morrow, Howard, Lomax, Willard Curtis, Driscoll, Edward Jr., Steinhauer, Alan J.
• Primary Examiner(s): HO, TUAN V
• Application Number:
  US09/614,506
• Time in Patent Office: 742 Days
• Field of Search: H04/N.5225, H04/N.700, 348/207, 348/335, 348/336, 348/337, 348/339, 348/340, 348/343, 348/344, 348/36, 348/37, 348/38, 348/39, 348/143, 359/725-728, 359/363-366, 250/208.1
• US Class Current: 348/335
• CPC Class Codes: G02B 13/06 Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
• CPC Class Codes: G03B 37/00 Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
• CPC Class Codes: G06T 3/12 Panospheric to cylindrical image transformations
• CPC Class Codes: G08B 13/19626 optical details, e.g. lenses, mirrors or multiple lenses
• CPC Class Codes: G08B 13/19628 of wide angled cameras and camera groups, e.g. omni-directional cameras, fish eye, single units having multiple cameras achieving a wide angle view
• CPC Class Codes: G08B 13/19682 Graphic User Interface [GUI] presenting system data to the user, e.g. information on a screen helping a user interacting with an alarm system
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

Most camera systems only record an image from a limited viewing angle. A new panoramic camera apparatus is disclosed that instantaneously captures a 360 degree panoramic image. In the camera device, virtually all of the light that converges on a point in space is captured. Specifically, in the camera of the present invention, light striking this point in space is captured if it comes from any direction, 360 degrees around the point and from angles 50 degrees or more above and below the horizon. The panoramic image is recorded as a two dimensional annular image. Furthermore, various different systems for displaying the panoramic images and distributing the panoramic images. Specifically, methods and apparatus for digitally performing a geometric transformation of the two dimensional annular image into rectangular projections such that the panoramic image can be displayed using conventional methods such as printed images and televised images.

Claims

1. An apparatus for capturing panoramic images, said apparatus comprising:

a convex mirror, said convex mirror reflecting light from a substantially 360 degree band around said convex mirror and from a field-of-view extending through a horizon line, said convex mirror having a substantially parabolic shape;

a second mirror, said second mirror reflecting said light from said convex mirror into an aperture in said convex mirror; and

an image capture mechanism, said image capture mechanism capturing said light reflected from said convex mirror and said second mirror, whereby said light is captured linearly proportional to the incident angle of said light on said convex mirror.

2. The apparatus as claimed in claim 1 wherein said image capture mechanism is housed within said convex mirror.

3. The apparatus of claim 1 wherein said image capture mechanism comprises photographic film.

4. The apparatus of claim 1 wherein said image capture mechanism comprises an electronic image capture device.

5. The apparatus of claim 4 wherein said electronic image capture device comprises at least one charged coupled device.

6. The apparatus of claim 4 wherein said electronic image capture device comprises at least one complementary metal oxide semiconductor device.

7. The apparatus of claim 4 wherein said image capture mechanism further comprises a video camera.

8. The apparatus of claim 4 wherein said image capture mechanism further includes a digital camera.

9. The apparatus of claim 1 wherein said image capture mechanism captures said light as an annular image.