Method and system for panoramic viewing

• US 5,990,934 A
• Filed: 04/28/1995
• Issued: 11/23/1999
• Est. Priority Date: 04/28/1995
• Status: Expired due to Term

• Current Assignee: AT&T IPM Corp. (AT&T, Inc.)
• Original Assignee: Lucent Technologies, Inc. (Nokia Corporation)
• Inventors: Nalwa, Vishvjit Singh
• Primary Examiner(s): Garber, Wendy
• Assistant Examiner(s): MOE, AUNG SOE
• Application Number:
  US08/431,354
• Time in Patent Office: 1,670 Days
• Field of Search: 348/36, 348/38, 348/39, 348/37, 353/30, 353/98, 353/99, 353/94, 352/69-71
• US Class Current: 348/36
• CPC Class Codes: G02B 13/06 Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
• CPC Class Codes: G02B 23/08 Periscopes arrangements on floating structures of underwater viewing devices B63C11/49; arrangement of visual watch equipment on submarines B63G8/38
• CPC Class Codes: G03B 17/17 with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
• CPC Class Codes: G03B 37/04 with cameras or projectors providing touching or overlapping fields of view
• CPC Class Codes: H04N 23/58 Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
• 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 7/181 for receiving images from a plurality of remote sources

Abstract

Four cameras provide a 360 degree view of an area using a four sided pyramid shaped element. The four sides of the pyramid shaped element are reflective and reflect images from four different directions. Each camera is positioned to receive a reflected image from one of the reflective sides of the pyramids. The cameras are arranged so that they share a common virtual optical center. Pixel data from the cameras is stored in a memory, and the data is selectively retrieved from the memory for viewing based on a user'"'"'s input.

Claims

1. A panoramic viewing system, comprising:

a plurality of image gathering devices producing a plurality of video signals, each of said plurality of image gathering devices having an optical center;

a pyramid shaped element having a plurality of reflective side facets facing in different directions so as to reflect images from different directions to said plurality of image gathering devices and to create a virtual optical center for each of said optical centers, each of said plurality of facets reflecting an image to an image gathering device belonging to said plurality of image gathering devices and each of said virtual optical centers being substantially at a common point;

a memory for storing digitized video data representative of said video signals; and

control means for selectively retrieving digitized video data from said memory in response to user signals produced in response to a user'"'"'s input.

2. The panoramic viewing system of claim 1, further comprising a display for displaying an image representative of digitized video data retrieved from said memory.

3. The panoramic viewing system of claim 1, further comprising a user input device for producing said user signals.

4. The panoramic viewing system of claim 3, wherein said user input device is a mouse.

5. The panoramic viewing system of claim 3, wherein said user input device is a joystick.

6. The panoramic viewing system of claim 3, wherein said user input device is a keyboard.

7. The panoramic viewing system of claim 1, wherein digitized video data retrieved from said memory is representative of a partial image from a first image gathering device and a partial image from a second image gathering device, said first and second image gathering devices belonging to said plurality of image gathering devices.

8. A panoramic viewing system, comprising:

a plurality of image gathering devices producing a plurality of video signals, each of said plurality of image gathering devices having an optical center;

a pyramid shaped element having a plurality of reflective side facets facing in different directions so as to reflect images from different directions to said plurality of image gathering devices and to create a virtual optical center for each of said optical centers, each of said plurality of facets reflecting an image to an image gathering device belonging to said plurality of image gathering devices and each of said virtual optical centers being substantially at a common point;

a memory for storing digitized video data representative of said video signals;

control means for selectively retrieving digitized video data from said memory in response to user signals produced in response to a user'"'"'s input; and

communication network interface means for transmitting digitized video data retrieved from said memory over a communications network and for receiving said user signals over said communications network.

9. The panoramic viewing system of claim 8, wherein said communication network interface means is a modem.

10. The panoramic viewing system of claim 8, wherein digitized video data retrieved from said memory is representative of a partial image from a first image gathering device and a partial image from a second image gathering device, said first and second image gathering devices belonging to said plurality of image gathering devices.

11. A method for providing panoramic viewing to a remote user, comprising the steps of:

producing a plurality of video signals using a plurality of image gathering devices, each of said plurality of image gathering devices having an optical center;

providing each of said plurality of image gathering devices with an image using a pyramid shaped element having a plurality of reflective side facets facing in different directions so as to reflect images from different directions to said plurality of image gathering devices and to create a virtual optical center for each of said optical centers, each of said virtual optical centers being substantially at a common point;

storing digitized video data representative of said video signals in a memory;

selectively retrieving digitized video data from said memory in response to user signals produced in response to a user'"'"'s input and received over a communications network; and

transmitting digitized video data retrieved from said memory representative of said video signals over said communications network.

12. The method of claim 11, wherein the step of selectively retrieving digitized video data from said memory comprises retrieving data representative of a partial image from a first image gathering device and retrieving data representative of a partial image from a second image gathering device, said first and second image gathering devices belonging to said plurality of image gathering devices.