RASTER SCANNING FOR DEPTH DETECTION
First Claim
9. A depth camera, comprising:
- a light source that transmits light;
a scanning element in optical communication with the light source, the scanning element scans the light over a field of view by scanning in an x-direction and a y-direction;
a light detector that receives a reflected image of the scanned light from an object within the field of view; and
logic that determines a distance or distances to the object within the field of view based on the reflected image.
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Accused Products
Abstract
Techniques are provided for determining distance to an object in a depth camera'"'"'s field of view. The techniques may include raster scanning light over the object and detecting reflected light from the object. One or more distances to the object may be determined based on the reflected image. A 3D mapping of the object may be generated. The distance(s) to the object may be determined based on times-of-flight between transmitting the light from a light source in the camera to receiving the reflected image from the object. Raster scanning the light may include raster scanning a pattern into the field of view. Determining the distance(s) to the object may include determining spatial differences between a reflected image of the pattern that is received at the camera and a reference pattern.
145 Citations
20 Claims
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9. A depth camera, comprising:
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a light source that transmits light; a scanning element in optical communication with the light source, the scanning element scans the light over a field of view by scanning in an x-direction and a y-direction; a light detector that receives a reflected image of the scanned light from an object within the field of view; and logic that determines a distance or distances to the object within the field of view based on the reflected image. - View Dependent Claims (1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14)
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12-1. The depth camera of claim 9, wherein the distance determination logic determines a depth map of the object in the field of view.
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15. A machine-implemented method of scanning to determine depth information, the method comprising:
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transmitting light from a light source in a camera; controlling a scanning element while transmitting the light to scan a line in a field of view of the camera; receiving, at a linear array detector in the camera, an image from an object in the field of view, the image corresponds to at least a portion of the line; determining whether to scan another line; repeating the transmitting, the controlling, and the receiving if another line is to be scanned; analyzing spatial properties of the received images; and determining a distance or distances to the object within the field of view based on the analyzing spatial properties of the received images. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification