Optimal depth mapping
View Patent ↗A method and apparatus for providing optimal correction to depth mapping between captured and displayed stereoscopic content. The solution is derived in a continuous form that can be implemented through CGI scaling techniques compatible with image rendering techniques. Similar correction can be implemented with variable depth-dependent camera separation and disparity re-mapping. The latter is applicable to correcting existing stereoscopic content.
1. A method for generating an optimal stereoscopic image, the method including an optimizing sequence comprising:
determining, with a processor, an original position of a point in a scene, the original position of the point having an original depth;
modifying the original position of the point in the scene to a new position, the new position having a new depth;
wherein the modifying the original position of the point in the scene to a new position comprises:
using a depth scaling function, Z′(Z), wherein Z represents the original position of the point in the scene;
wherein the depth scaling function Z′(Z) comprises:
Z
′
(
Z
)
=
β
(
K
·
Z
-
γ
-
1
)
;
and
wherein
β
=
(
D_max
-
D_min
)
·
Z_min
·
Z_max
[
(
Z_max
-
Z_min
)
·
E
-
D_max
·
Z_max
+
D_min
·
Z_min
]
;
wherein
γ
=
ln
[
(
E
-
D_max
)
(
E
-
D_min
)
]
ln
(
Z_min
Z_max
)
;
wherein
K
=
(
Z_min
+
β
)
Z_min
1
-
γ
;
wherein Dmax represents a maximum image separation;
wherein Dmin represents a minimum image separation;
wherein Zmax represents a maximum scene depth;
wherein Zmin represents a minimum scene depth; and
wherein E represents an eye separation distance.
2. The method of claim 1 , wherein the modifying the original position of the point in the scene to a new position further comprises:
moving the original position of the point in the scene along a line, the line defined by extending through the original position of the point in the scene and a midpoint between two capture camera positions.
3. The method of claim 2 , wherein the two capture camera positions comprise capture camera positions in a computer generated imagery environment.
4. The method of claim 2 , wherein the moving the original position of the point comprises moving the original position of the point toward the midpoint between the two capture camera positions.
5. The method of claim 2 , wherein the optimizing sequence is repeated for every point in the scene.
6. The method of claim 1 , wherein the optimizing sequence is repeated for every point in the scene.
7. The method of claim 1 , wherein the scene is a computer generated imagery environment.
8. The method of claim 1 , wherein the scene is real.