Method and apparatus for producing a three-hundred and sixty degree spherical visual data set

• US 5,903,782 A
• Filed: 11/14/1996
• Issued: 05/11/1999
• Est. Priority Date: 11/15/1995
• Status: Expired due to Term

• Current Assignee: Grandeye Limited (Oncam Global Group AG)
• Original Assignee: Ford Oxaal
• Inventors: Oxaal, Ford
• Primary Examiner(s): Gray, David M.
• Application Number:
  US08/749,166
• Time in Patent Office: 908 Days
• Field of Search: 396/50, 396/428, 396/20, 396/427
• US Class Current: 396/50
• CPC Class Codes: G03B 17/561 Support related camera accessories
• CPC Class Codes: G03B 37/02 with scanning movement of lens or cameras
• CPC Class Codes: H04N 23/698 for achieving an enlarged field of view, e.g. panoramic image capture

Abstract

The present invention is directed to an apparatus and method for producing a three-hundred and sixty degree spherical visual data set using at least one lens. The lens encompasses a field of view of not less than one-hundred and eighty degrees. The field of view is represented by a hemisphere defined by a half-space which is, in turn, defined by a first plane having an origin point through which a vertical axis of the plane extends. The apparatus includes a mounting support member and a plumbing device. The mounting support member positions at least one camera having the at least one lens. The mounting support member is aligned with the vertical axis and rotatable in first and second directions through at least one-hundred and eighty degrees from a first position to a second position. The plumbing device is mounted to one of the camera, lens and mounting means and maintains the vertical axis plumb.

Claims

1. A method for producing a three-hundred and sixty degree visual data set using at least one lens of a camera which encompasses a field of view of not less than one-hundred and eighty degrees, said field of view being represented by a hemisphere having a base which defines at least a half-space which is in turn defined by a first plane having an origin point through which a vertical axis of said first plane extends, said first plane coinciding with said base of said hemisphere and said origin point coinciding with a center of said hemisphere, said method comprising the steps of:

(i) getting said vertical axis plumb with respect to a first predetermined plane of reference;

(ii) maintaining the plumbness of said vertical axis with respect to the first predetermined plane of reference;

(iii) aligning the lens such that said first plane corresponds to a second predetermined plane of interest;

(iv) shooting a picture using said camera;

(v) pivoting the lens substantially one-hundred and eighty degrees around the vertical axis; and

(vi) repeating steps (i) through (iv).

2. The method as recited in claim 1, further comprising the step of aligning a fixed light source with said first plane after the step of aligning the lens.

3. The method as recited in claim 1, wherein a monopod is used to support the lens.

4. A method for producing a three-hundred and sixty degree visual data set using at least one lens of a camera which encompasses a field of view of not less than one-hundred and eighty degrees, said field of view being represented by a hemisphere having a base which defines at least a half-space which is in turn defined by a first plane having an origin point through which a vertical axis of said first plane extends, said first plane coinciding with said base of said hemisphere and said origin point coinciding with a center of said hemisphere, wherein a tripod is used to support the lens, said method comprising the steps of:

(i) getting said vertical axis plumb with respect to a first predetermined plane of reference, wherein the step of getting said vertical axis plumb further comprises the steps of;

delineating a first line on the ground representing an intersection of said first plane with the ground;

placing a first leg and a second leg of said tripod on a second line parallel to said first line; and

adjusting a third leg of said tripod such that the vertical axis is plumb with said predetermined plane of reference;

(ii) maintaining the plumbness of said vertical axis with respect to the first predetermined plane of reference;

(iii) aligning the lens such that said first plane corresponds to a second predetermined plane of interest;

(iv) shooting a picture using said camera;

(v) pivoting the lens substantially one-hundred and eighty degrees around the vertical axis; and

(vi) repeating steps (i) through (iv).

5. The method as recited in claim 4, wherein the step of pivoting the lens further comprises the step of:

pivoting said tripod one-hundred and eighty degrees so that the first and second legs are placed on a third line parallel to said first line.

6. A method for producing a three-hundred and sixty degree visual data set using at least one lens of a camera supported by a tripod which encompasses a field of view of not less than one-hundred and eighty degrees, said field of view being represented by a hemisphere having a base which defines at least a half-space which is in turn defined by a first plane having an origin point through which a vertical axis of said first plane extends, said first plane coinciding with said base of said hemisphere and said origin point coinciding with a center of said hemisphere, said method comprising the steps of:

(i) getting said vertical axis plumb with respect to a first predetermined plane of reference, said step (i) further comprising steps for;

delineating a first line on the ground representing an intersection of said first plane with the ground;

placing a first leg and a second leg of said tripod on a second line parallel to said first line; and

adjusting a third leg of said tripod such that the vertical axis is plumb with said predetermined plane of reference;

(ii) maintaining the plumbness of said vertical axis with respect to the first predetermined plane of reference;

(iii) aligning the lens such that said first plane corresponds to a second predetermined plane of interest;

(iv) aligning a fixed light source with said first plane;

(v) shooting a picture using said camera;

(vi) pivoting the lens substantially one-hundred and eighty degrees around the vertical axis;

(vii) pivoting said tripod one-hundred and eighty degrees so that the first and second legs are placed on a third line parallel to said first line; and

(vii) repeating steps (i) through (iv), wherein;

said steps (iii) and (iv) are performed in the stated order, and

said steps (vi) and (vii) are performed in any order.