Code domain power control for structured light
First Claim
1. A structured light system, comprising:
- a memory device configured to store a depth map;
an image projecting device including a laser system configured to project a plurality of symbols;
a receiver device including a sensor, the receiver device configured to sense the projected plurality of symbols reflected from an object;
a processing circuit configured toretrieve at least a portion of the depth map stored in the memory device and calculate symbols corresponding to the depth map; and
control an output power of the laser system based on the sensed plurality of symbols and the symbols corresponding to the depth map.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for controlling structured light laser systems are disclosed. One aspect is a structured light system. The system includes a memory device configured to store a depth map. The system further includes an image projecting device including a laser system configured to project codewords. The system further includes a receiver device including a sensor, the receiver device configured to sense the projected codewords reflected from an object. The system further includes a processing circuit configured to retrieve a portion of the depth map and calculate expected codewords from the depth map. The system further includes a feedback system configured to control the output power of the laser system based on the sensed codewords and the expected codewords.
71 Citations
30 Claims
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1. A structured light system, comprising:
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a memory device configured to store a depth map; an image projecting device including a laser system configured to project a plurality of symbols; a receiver device including a sensor, the receiver device configured to sense the projected plurality of symbols reflected from an object; a processing circuit configured to retrieve at least a portion of the depth map stored in the memory device and calculate symbols corresponding to the depth map; and control an output power of the laser system based on the sensed plurality of symbols and the symbols corresponding to the depth map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of controlling laser power in a structured light system, comprising:
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storing a depth map with a memory device; projecting a plurality of symbols with a laser system; sensing the projected plurality of symbols reflected from an object with a receiver sensor; retrieving a portion of the depth map from the memory device; calculating symbols corresponding to the depth map; and controlling output power of the laser system based on the sensed plurality of symbols reflected from the object and the symbols corresponding to the depth map. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A structured light system, comprising:
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means for storing a depth map; means for projecting a plurality of symbols; means for sensing the projected plurality of symbols reflected from an object; means for retrieving a portion of the depth map from the means for storing a depth map; means for calculating symbols corresponding to the depth map; and means for controlling output power of the projecting means based on a comparison between the sensed plurality of symbols and the symbols corresponding to the depth map. - View Dependent Claims (28, 29)
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30. A non-transitory computer-readable medium storing instructions that when executed cause a processor to perform a method of controlling output power of a laser system of a structured light system, the method comprising:
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storing a depth map with a memory device; projecting a plurality of symbols with the laser system; sensing the projected plurality of symbols reflected from an object with a receiver sensor; retrieving a portion of the depth map from the memory device; calculating symbols corresponding to the depth map; and controlling output power of the laser system based on the sensed plurality of symbols and the calculated symbols corresponding to the depth map.
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Specification