CAMERA FOR MEASURING DEPTH IMAGE AND METHOD OF MEASURING DEPTH IMAGE USING THE SAME
First Claim
1. A time-of-flight (TOF) depth camera comprising:
- an illumination device which is configured to illuminate a patterned light to an object;
a filter device which is configured to reduce noise light included in light reflected by the object; and
an image sensor which is configured to provide a depth image of the object by receiving light that enters through the filter device.
1 Assignment
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Accused Products
Abstract
Provided are a depth camera and methods of measuring a depth image by using the depth camera. The depth camera is a time-of-flight (TOF) depth camera including: an illumination device that illuminates a patterned light to an object; a filter unit that reduces noise light included in light reflected by the object; and an image sensor that provides a depth image of the object by receiving light that enters through the filter unit. The illumination device includes: a light source; and a patterned light generator that changes the light emitted from the light source into the patterned light. The filter unit includes a band pass filter and an optical modulator. The patterned light generator may be a diffractive optical element or a refractive optical element.
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Citations
12 Claims
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1. A time-of-flight (TOF) depth camera comprising:
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an illumination device which is configured to illuminate a patterned light to an object; a filter device which is configured to reduce noise light included in light reflected by the object; and an image sensor which is configured to provide a depth image of the object by receiving light that enters through the filter device. - View Dependent Claims (2, 3, 4, 5)
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6. A method of measuring a depth image, comprising:
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irradiating a patterned light on an object; measuring a phase delay of light that is reflected by the object; and measuring a plurality of distances from a depth camera to each of a plurality of regions of the object using the measured phase delay. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification