Method for elementary depth detection in 3D imaging
First Claim
Patent Images
1. A method comprising:
- capturing an intensity at a location on a surface in a single pixel of an image sensing array (ISA); and
converting the intensity into a measurement of distance to the location relative to a reference point independently of data from other pixels of the ISA and independent of time of flight of light reflected from the location to the single pixel.
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Abstract
A method and apparatus for obtaining up to one depth measurement for each pixel. A image sensing array (ISA) captures a measurement of intensity on a surface. The intensity maps to depth. Accordingly, from a single pixel, or a group of pixels without regard to the intensity distribution among the pixels in the group, a depth measurement can be obtained independently of any and/or all data captured by other pixels in the array.
10 Citations
18 Claims
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1. A method comprising:
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capturing an intensity at a location on a surface in a single pixel of an image sensing array (ISA); and
converting the intensity into a measurement of distance to the location relative to a reference point independently of data from other pixels of the ISA and independent of time of flight of light reflected from the location to the single pixel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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capturing an intensity at a location on a surface in an elementary group of pixels on an image sensing array (ISA) without regard to intensity distribution within the group; and
converting the intensity into a measurement of distance to the location independently of data from other pixels on the ISA and independently of time of flight of light reflected from the location to the elementary group of pixels. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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capturing a spectral energy distribution returned from a location on a surface in a single pixel of an ISA; and
converting the spectral energy distribution into a measurement of distance to the location relative to a reference point independently of data from other pixels of the ISA and independent of time of flight of light reflected from the location to the single pixel.
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16. A method comprising:
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altering one of a spatial and optical relationship between an image sensing array (ISA) and a surface;
observing a variation of an electrical signal at a single pixel on the ISA responsive to the alteration; and
converting the variation to a measure of distance to a location on the surface relative to a reference point, independently of data from other pixels of the ISA and independent of time of flight of light reflected from the location to the single pixel.
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17. A method comprising:
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altering one of a spatial and optical relationship between an image sensing array (ISA) and a surface; and
observing a variation of an electrical signal at an elementary group of pixels on the ISA without regard to variations in electrical signals within the group responsive to the alteration.
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18. A method comprising:
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capturing an intensity at a location on a surface in a single pixel of a linear image sensing array (ISA); and
converting the intensity into a measurement of distance to the location relative to a reference point independently of data from other pixels of the linear ISA.
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Specification