Real time position sensing of objects
First Claim
1. A method for measuring a three dimensional range to a target, comprising:
- emitting, by a transmitter, light toward the target;
receiving, by an aperture, one or more reflections of the light from the target;
directing, by the aperture, the one or more reflections toward a sensor that comprises a plurality of pixels arranged in one or more rows having a plurality of columns, wherein the sensor is positioned at a location that is offset by a predetermined distance from another location of the transmitter;
determining, by the one or more processor devices, one or more departure times of the emitted light towards the target;
determining, by the one or more processor devices, one or more anticipated arrival times of the one or more light reflections on the sensor based on the one or more departure times and the predetermined offset distance;
sequentially activating, by the one or more processor devices, one or more portions of the plurality of pixels arranged in the one or more rows based on the one or more anticipated arrival times; and
employing a disparity for a first portion of the one or more rows of pixels that exceeds a disparity threshold to determine, by the one or more processor devices, that the range to the target is a particular distance based on the disparity for the first portion of the one or more rows of pixels, wherein the target'"'"'s three dimensional range measurement is based on the one or more light reflections detected by the one or more portions of the plurality of pixels.
3 Assignments
0 Petitions
Accused Products
Abstract
Embodiments are directed toward measuring a three dimensional range to a target. A transmitter emits light toward the target. An aperture may receive light reflections from the target. The aperture may direct the reflections toward a sensor that comprises rows of pixels that have columns. The sensor is offset a predetermined distance from the transmitter. Anticipated arrival times of the reflections on the sensor are based on the departure times and the predetermined offset distance. A portion of the pixels are sequentially activated based on the anticipated arrival times. The target'"'"'s three dimensional range measurement is based on the reflections detected by the portion of the pixels.
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Citations
18 Claims
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1. A method for measuring a three dimensional range to a target, comprising:
emitting, by a transmitter, light toward the target; receiving, by an aperture, one or more reflections of the light from the target; directing, by the aperture, the one or more reflections toward a sensor that comprises a plurality of pixels arranged in one or more rows having a plurality of columns, wherein the sensor is positioned at a location that is offset by a predetermined distance from another location of the transmitter; determining, by the one or more processor devices, one or more departure times of the emitted light towards the target; determining, by the one or more processor devices, one or more anticipated arrival times of the one or more light reflections on the sensor based on the one or more departure times and the predetermined offset distance; sequentially activating, by the one or more processor devices, one or more portions of the plurality of pixels arranged in the one or more rows based on the one or more anticipated arrival times; and employing a disparity for a first portion of the one or more rows of pixels that exceeds a disparity threshold to determine, by the one or more processor devices, that the range to the target is a particular distance based on the disparity for the first portion of the one or more rows of pixels, wherein the target'"'"'s three dimensional range measurement is based on the one or more light reflections detected by the one or more portions of the plurality of pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system to measure a three dimensional range to a target, comprising:
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a transmitter that emits light toward the target; an aperture that receives one or more reflections of the light from the target, wherein the aperture directs the one or more reflections toward a sensor; a sensor that comprises a plurality of pixels arranged in one or more rows having a plurality of columns, wherein the sensor is positioned at a location that is offset by a predetermined distance from another location of the transmitter; one or more memory devices that store instructions; one or more processor devices that execute the stored instructions to perform actions, including; determining one or more departure times of the emitted light towards the target; determining one or more anticipated arrival times of the one or more light reflections on the sensor based on the one or more departure times and the predetermined offset distance; sequentially activating one or more portions of the plurality of pixels arranged in the one or more rows based on the one or more anticipated arrival times; and employing a disparity for a first portion of the one or more rows of pixels that exceeds a disparity threshold to determine that the range to the target is a particular distance based on the disparity for the first portion of the one or more rows of pixels, wherein the target'"'"'s three dimensional range measurement is based on the one or more light reflections detected by the one or more portions of the plurality of pixels. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A non-transitory processor readable storage media that includes instructions for measuring a three dimensional range to a target, wherein execution of the instructions by one or more processor devices cause the one or more processor devices to perform actions, comprising:
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emitting, by a transmitter, light toward the target; receiving, by an aperture, one or more reflections of the light from the target; directing, by the aperture, the one or more reflections toward a sensor that comprises a plurality of pixels arranged in one or more rows having a plurality of columns, wherein the sensor is positioned at a location that is offset by a predetermined distance from another location of the transmitter; determining, by the one or more processor devices, one or more departure times of the emitted light towards the target; determining, by the one or more processor devices, one or more anticipated arrival times of the one or more light reflections on the sensor based on the one or more departure times and the predetermined offset distance; sequentially activating, by the one or more processor devices, one or more portions of the plurality of pixels arranged in the one or more rows based on the one or more anticipated arrival times; and employing a disparity for a first portion of the one or more rows of pixels that exceeds a disparity threshold to determine, by the one or more processor devices, that the range to the target is a particular distance based on the disparity for the first portion of the one or more rows of pixels, wherein the target'"'"'s three dimensional range measurement is based on the one or more light reflections detected by the one or more portions of the plurality of pixels. - View Dependent Claims (16, 17, 18)
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Specification