Camera to minimize parallax effects
View Patent ↗An apparatus comprising a plurality of lenses and a frame. The plurality of lenses may be arranged to provide coverage for a spherical field of view of a scene surrounding the apparatus and each have an optical axis directed to provide coverage for a respective area of the spherical field of view. The frame may be configured to hold a first subset of the plurality of lenses and a second subset of the plurality of lenses. At least one of the lenses in the first subset and at least one of the lenses in the second subset are neighboring lenses. An orientation of at least two of the neighboring lenses is configured to reduce parallax effects when the spherical field of view is recorded using the plurality of lenses. The parallax effects are reduced by configuring the optical axes of the neighboring lenses to not intersect.
1. An apparatus comprising:
a plurality of lenses (i) arranged to provide coverage for a spherical field of view of a scene surrounding the apparatus and (ii) each having an optical axis directed to provide coverage for a respective area of said spherical field of view; and
a frame configured to hold (A) a first subset of said plurality of lenses and (B) a second subset of said plurality of lenses, wherein (i) at least one of said lenses in said first subset and at least one of said lenses in said second subset are neighboring lenses, (ii) an orientation of at least two of said neighboring lenses is configured to reduce parallax effects when said spherical field of view is recorded using said plurality of lenses and (iii) said parallax effects are reduced by configuring said optical axes of said neighboring lenses to not intersect.
2. The apparatus according to claim 1 , wherein said frame is configured as a unibody design.
3. The apparatus according to claim 1 , wherein said frame comprises (i) a first base comprising said first subset of said plurality of lenses and (ii) a second base comprising said second subset of said plurality of lenses.
4. The apparatus according to claim 1 , wherein the parallax effects are reduced by positioning a center of projection of each of said plurality of lenses close to a common location.
5. The apparatus according to claim 4 , wherein at least one of said lenses in said first subset and one of said lenses in said second subset are tilted to reduce a distance between said centers of projection of said one of said lenses in said first subset and said one of said lenses in said second subset and said common location.
6. The apparatus according to claim 4 , wherein said center of projection of one of said plurality of lenses represents a focal point of a camera.
7. The apparatus according to claim 1 , wherein said apparatus comprises an optical assembly configured to capture raw data for a plurality of video processors.
8. The apparatus according to claim 1 , wherein said lenses in said first subset and said lenses in said second subset are at least one of (a) positioned orthogonally in reference to each other, (b) tilted in vertically opposite directions and (c) displaced in reference to each other.
9. The apparatus according to claim 1 , wherein a distance between a center of projection of one of said lenses in said first subset and a center of projection of one of said lenses in said second subset is less than a distance between centers of projection of two of said lenses in said first subset.
10. The apparatus according to claim 9 , wherein said distance between said center of projection of one of said lenses in said first subset and said center of projection of one of said lenses in said second subset decreases based on an angle of inclination.
11. The apparatus according to claim 1 , wherein centers of projection for said plurality of lenses are all located in a common horizontal plane.
12. The apparatus according to claim 1 , wherein said spherical field of view is recorded by performing video stitching operations on video signals captured using said plurality of lenses.
13. The apparatus according to claim 12 , wherein said parallax effect causes visual artifacts at overlapping areas of said video signals after performing said video stitching operations.
14. The apparatus according to claim 1 , wherein (i) a first lens in said first subset and a second lens in said first subset are aimed in opposite directions along a first axis and (ii) a first lens in said second subset and a second lens in said second subset are aimed in opposite directions along a second axis.
15. The apparatus according to claim 1 , wherein said first subset and said second subset each comprise two video cameras.
16. The apparatus according to claim 1 , wherein said respective area covered by one of said lenses in said first subset and said respective area covered by one of said lenses in said second subset has an overlapping area.
17. An apparatus comprising a plurality of lenses arranged to:
(A) provide coverage for a spherical field of view of a scene surrounding the apparatus, wherein (i) each of said plurality of lenses has an optical axis directed to provide coverage for a respective area of said spherical field of view and (ii) any two of said plurality of lenses are considered neighboring lenses when said respective areas covered by said neighboring lenses have an overlapping area; and
(B) reduce parallax effects associated with said overlapping area when said spherical field of view is recorded using said plurality of lenses, wherein said parallax effects are reduced by configuring said optical axes to not intersect for said neighboring lenses that have a largest size of said overlapping area.
18. The apparatus according to claim 17 , wherein said neighboring lenses that have a largest size of said overlapping area are two of said lenses having a distance less than or equal to any other pair of said lenses.
19. An apparatus comprising:
a plurality of lenses arranged to provide coverage for a spherical field of view of a scene surrounding the apparatus;
a first base configured to hold (i) a first of said plurality of lenses and (ii) a second of said plurality of lenses; and
a second base configured to hold (i) a third of said plurality of lenses and (ii) a fourth of said plurality of lenses, wherein (i) said first and second lenses are positioned horizontally opposite on a first axis, (ii) said third and fourth lenses are positioned horizontally opposite on a second axis (iii) said first axis and said second axis are orthogonal with respect to each other and (iv) an orientation of said first lens, said second lens, said third lens and said fourth lens is configured to reduce parallax effects when said spherical field of view is recorded using said plurality of lenses.
20. The apparatus according to claim 19 , wherein (i) said horizontally opposite position comprises two of said lenses having an orientation 180 degrees apart when projected to a horizontal plane.