Device for acquiring depth image, calibrating method and measuring method therefor

A device for acquiring depth image, a calibrating method and a measuring method therefore are provided. The device includes at least one projecting device, at least one image sensing device, a mechanism device and a processing unit. The projecting device projects a projection pattern to a measured o...

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Bibliographic Details
Main Authors CHEN CHIAN, LIOU TUNG-FA, LUO WEN-SHIOU
Format Patent
LanguageChinese
English
Published 02.07.2014
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
SURVEYING
TESTING
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Summary:A device for acquiring depth image, a calibrating method and a measuring method therefore are provided. The device includes at least one projecting device, at least one image sensing device, a mechanism device and a processing unit. The projecting device projects a projection pattern to a measured object. The image sensing device is controlled to adjust a focal length and focus position, and therefore sense real images. The mechanism device adjusts a location and/or a convergence angle of the image sensing device. The processing unit calibrates the at least one image sensing device and generates a three dimension (3D) measuring parameter set at a model focal length according to a plurality of image setting parameter reference sets corresponding to a model focal length and a plurality of default node distances, respectively, and then estimates a depth map or depth information of the measured object.
Bibliography:Application Number: CN201310078197