Method for smoothing transitions between scenes of a stereo film and controlling or regulating a plurality of 3D cameras
View Patent ↗In an exemplary embodiment, a method for producing a stereo film is provided, wherein a first image that is supplied ( 10 ) by a first camera rig having at least two cameras is followed ( 50 ) by a second image from a second camera rig, wherein furthermore a disparity table for definition of the displacement of a defined image point in a first sub-frame supplied by a first camera of the first camera rig relative to an image point similar thereto in a second sub-frame supplied by a second camera of the first camera rig is determined ( 20, 30 ) in order to obtain information about the depth of the first image composed of the first sub-frame and the second sub-frame, wherein the depth information of the disparity table of the first image of the first camera rig is used ( 60 ) for processing of the second image of the second camera rig. The invention also relates to controlling (means) or regulating means for a plurality of 3D cameras configured to carry out said method.
1. A method for producing a motion video recording, comprising:
obtaining a first image captured with a first camera rig having at least two cameras;
obtaining a second image captured with a second camera rig;
calculating, with an image processor, a first displacement of at least one first image point contained in a first sub-frame obtained from a first camera of the first camera rig relative to at least one second image point contained in a second sub-frame obtained from a second camera of the first camera rig and corresponding to the at least one first image point;
storing the at least one displacement in a disparity table; and
processing the at least one second image using the disparity table.
2. The method of claim 1 , further comprising displacing the second sub-frame relative to the first sub-frame, and wherein the first sub-frame and a fourth sub-frame obtained from a second camera of the second camera rig form the second image.
3. The method of claim 2 , wherein the second sub-frame is horizontally displaced.
4. The method of claim 2 , wherein the processing the at least one second image is performed simultaneously with displacing the second sub-frame relative to the first sub-frame.
5. The method of claim 2 , wherein the processing the at least one second image is performed after displacing the second sub-frame relative to the first sub-frame.
6. The method of claim 1 , further comprising displacing a fourth sub-frame obtained from a second camera of the second camera rig relative to a third sub-frame obtained from a first camera of the second camera rig to create a second displacement.
7. The method of claim 6 , wherein the second displacement is substantially the same as the first displacement.
8. The method of claim 1 , further comprising changing the magnification of the at least one second image in response to the disparity table and until a second depth distance between a second foreground point in a third sub-frame of the second image and a second background point in a fourth sub-frame of the second image is substantially same as a first depth distance between a first foreground point in the first sub-frame and a first background point in the second sub-frame.
9. The method of claim 8 , wherein the magnification is changed digitally.
10. The method of claim 8 , wherein the magnification of both the third sub-frame and the fourth sub-frame is changed.
11. The method of claim 1 , further comprising blurring all areas of the second image that lie outside a depth budget of the disparity table.
12. The method of claim 11 , wherein the blurring is accomplished using a Gaussian blurring algorithm.
13. The method of claim 1 , wherein the displacement corresponds to a depth of the first image.
14. A system configured to for producing a motion video recording, the system comprising:
an image processor configured to:
receive a first image comprising at least a first sub-frame obtained from a first camera of a first camera rig and a second sub-frame obtained from a second camera of a first camera rig;
receive a second image comprising at least a third sub-frame obtained from a first camera of a second camera rig and a fourth sub-frame from a second camera of a second camera rig;
calculate at least one first displacement between at least one first image point in the first sub-frame and at least one corresponding second image point in the second sub-frame;
store the at least one first displacement in a disparity table; and
process at least one of the third sub-frame and the fourth sub-frame in response to the disparity table.
15. The system of claim 14 , wherein the image processor is further configured to displace the second sub-frame relative to the first sub-frame, and wherein at least the first sub-frame and the fourth sub-frame form the second image.
16. The system of claim 14 , wherein the image processor is further configured to displace the fourth sub-frame relative to the third sub-frame to create at least one second displacement.
17. The system of claim 14 , wherein the image processor is further configured to change the magnification of the second image in response to the at least one first displacement until a second depth distance between a second foreground point in the third sub-frame and a second background point in the fourth sub-frame is substantially the same as a first depth distance between a first foreground point in the first sub-frame and a first background point in the second sub-frame.
18. The system of claim 14 , wherein the image processor is further configured to blur all areas of the second image that lie outside a depth budget of the disparity table.