Depth-varying light fields for three dimensional sensing
First Claim
Patent Images
1. A method for mapping, comprising:
- projecting onto an object a pattern of multiple spots having respective positions and shapes, such that the positions of the spots in the pattern are uncorrelated, while the shapes share a common characteristic, which varies as a function of distance from a source of the pattern;
capturing an image of the spots on the object; and
processing the image so as to derive a three-dimensional (3D) map of the object by analyzing both the respective positions of the spots and the characteristic of the shapes of the spots on a surface of the object in the image.
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Abstract
A method for mapping includes projecting onto an object a pattern of multiple spots having respective positions and shapes, such that the positions of the spots in the pattern are uncorrelated, while the shapes share a common characteristic. An image of the spots on the object is captured and processed so as to derive a three-dimensional (3D) map of the object.
145 Citations
22 Claims
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1. A method for mapping, comprising:
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projecting onto an object a pattern of multiple spots having respective positions and shapes, such that the positions of the spots in the pattern are uncorrelated, while the shapes share a common characteristic, which varies as a function of distance from a source of the pattern; capturing an image of the spots on the object; and processing the image so as to derive a three-dimensional (3D) map of the object by analyzing both the respective positions of the spots and the characteristic of the shapes of the spots on a surface of the object in the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus for mapping, comprising:
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an illumination assembly, which is configured to project onto an object a pattern of multiple spots having respective positions and shapes, such that the positions of the spots in the pattern are uncorrelated, while the shapes share a common characteristic, which varies as a function of distance from a source of the pattern; an imaging assembly, which is configured to capture an image of the spots on the object; and an image processor, which is coupled to process the image so as to derive a three-dimensional (3D) map of the object by analyzing both the respective positions of the spots and the characteristic of the shapes of the spots on a surface of the object in the image. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification