DEPTH IMAGE ACQUIRING DEVICE, SYSTEM AND METHOD

A depth image acquiring device is provided, which includes at least one projecting device and at least one image sensing device. The projecting device projects a projection pattern to an object. The image sensing device senses a real image. In addition, the projecting device also serves as a virtual image sensing device. The depth image acquiring device generates a disparity image by matching three sets of dual-images formed by two real images and one virtual image, and generates a depth image according to the disparity image. In addition, the depth image acquiring device also generates a depth image by matching two real images, or a virtual image and a real image without verification. 1. A depth image acquiring device , comprising:at least one projecting device, for projecting a projection pattern to an object, wherein the projecting device serves as a virtual image sensing device, and an inherent image of the projection pattern serves as a virtual image;a first and a second image sensing device, for sensing the projection pattern projected to the object respectively, to generate a first real image and a second real image; andan image processing unit, coupled to the projecting device and the first and the second image sensing device,wherein the image processing unit matches pixels in the first real image with those in the second real image respectively, to obtain a first matched image, andmatches the pixels in the first real image with those in the virtual image respectively, to obtain a second matched image;performs match verification by using the first and the second matched image, to output a verified matched image, wherein a pixel in the verified matched image is one of the pixels in the first and the second matched image; andgenerates a disparity image according to values of pixels in the first real image and pixels in the verified matched image, and calculates a corresponding depth value according to the disparity image, so as to generate a depth image.2. The ...

3D SHAPE-MEASURING APPARATUS USING BIAXIAL ANAMORPHIC MAGNIFICATION

A 3D shape-measuring apparatus using biaxial anamorphic magnification comprises a light source that projects a light onto an object surface to be sensed. Via an electrical image-grabbing device, such as CCD camera, the light reflected from the object is grabbed to determine the coordinate locations sensed on the object. Before the electrical image-grabbing device, the light reflected from the object passes respectively through a curved reflecting mirror or an assembly of telecentric cylindrical lenses to adjust an image magnification along the light projection direction, and an assembly of cylindrical lenses to adjust an image magnification along a direction perpendicular to the light projection direction. Thereby, resolution nonuniformity with respect to near and far distance is resolved while the observable range of the CCD camera can further be efficiently changed into a measurable field.

Depth image acquiring device, system and method

A depth image acquiring device is provided, which includes at least one projecting device and at least one image sensing device. The projecting device projects a projection pattern to an object. The image sensing device senses a real image. In addition, the projecting device also serves as a virtual image sensing device. The depth image acquiring device generates a disparity image by matching three sets of dual-images formed by two real images and one virtual image, and generates a depth image according to the disparity image. In addition, the depth image acquiring device also generates a depth image by matching two real images, or a virtual image and a real image without verification.

Three-dimensional modeling method and system thereof

A three-dimensional modeling method and a three-dimensional modeling system are provided. The three-dimensional modeling method includes the steps of: performing a 360-degree three-dimensional scan on a measured object to obtain regional scan data corresponding to a plurality of different scan areas of the measured object; registering the regional scan data to form 360-degree three-dimensional scan data, wherein the 360-degree three-dimensional scan data include three-dimensional spatial coordinate data, curvature data and scan area data of the measured object; basing on the 360-degree three-dimensional scan data to search morphing model data from a database unit; a step of comparing the 360-degree three-dimensional scan data and performing registering and morphing processes on the morphing model data to construct compensated-template three-dimensional model data; and, basing on the compensated-template three-dimensional model data to fill at least one unknown area of the 360-degree three-dimensional ...

CALIBRATION METHOD OF DEPTH IMAGE CAPTURING DEVICE

A calibration method of a depth image capturing device including a projecting device and an image sensing device is provided. At least three groups of images of a calibration board having multiple feature points are captured. Intrinsic parameters of the image sensing device are calibrated according to the at least three groups of images. Multiple sets of coordinate values of corresponding points corresponding to the feature points in a projection pattern of the projecting device are obtained. Intrinsic parameters of the projecting device are obtained by calibration. Multiple sets of three-dimensional coordinate values of multiple feature points are obtained. An extrinsic parameter between the image sensing device and the projecting device is obtained according to multiple sets of three-dimensional coordinate values, the multiple sets of coordinate values of corresponding points, the intrinsic parameters of the image sensing device, and the intrinsic parameters of the projecting device. 1. A calibration method of a depth image capturing device comprising a projecting device and an image sensing device , wherein the calibration method comprises:capturing at least three groups of images of a calibration board having a plurality of feature points, wherein each of the at least three groups of images includes an image including a projection pattern projected on the calibration board by the projecting device and an image not including the projection pattern on the calibration board;calibrating an intrinsic parameter of the image sensing device according to the at least three groups of images;obtaining a plurality of sets of coordinate values of corresponding points corresponding to the feature points in the projection pattern of the projecting device;calibrating an intrinsic parameter of the projecting device according to the intrinsic parameter of the image sensing device and the plurality of sets of coordinate values of corresponding points;obtaining a three-dimensional ...

3D shape-measuring apparatus using biaxial anamorphic magnification

A 3D shape-measuring apparatus using biaxial anamorphic magnification comprises a light source that projects a light onto an object surface to be sensed. Via an electrical image-grabbing device, such as CCD camera, the light reflected from the object is grabbed to determine the coordinate locations sensed on the object. Before the electrical image-grabbing device, the light reflected from the object passes respectively through a curved reflecting mirror or an assembly of telecentric cylindrical lenses to adjust an image magnification along the light projection direction, and an assembly of cylindrical lenses to adjust an image magnification along a direction perpendicular to the light projection direction. Thereby, resolution nonuniformity with respect to near and far distance is resolved while the observable range of the CCD camera can further be efficiently changed into a measurable field.

Three dimensional scanning system

A three-dimensional scanning system, that scans a three-dimensional object and calculates a three-dimensional coordinate data from a surface of the object. The three-dimensional scanning system has a photoelectron detector, a rotational scanning device, a drive device, an image processing circuit, and an operational control device. The photoelectron detector projects a light plane onto the object and then receives a reflected light stripe. The rotational scanning device couples with the photoelectron detector that rotates on a fixed pivot and allows the light stripe to scan on the object's surface. The drive device couples to and operates the photoelectron detector and the rotational scanning device. The image processing circuit can grab the light stripe instantly. The operational control device couples with the rotational scanning device and the photoelectron detector. The operational control device controls the motion of the rotational scanning device and the scanning position of the ...

Three dimensional scanning system

A three-dimensional scanning system, that scans a three-dimensional object and calculates a three-dimensional coordinate data from a surface of the object. The three-dimensional scanning system has a photoelectron detector, a rotational scanning device, a drive device, an image processing circuit, and an operational control device. The photoelectron detector projects a light plane onto the object and then receives a reflected light stripe. The rotational scanning device couples with the photoelectron detector that rotates on a fixed pivot and allows the light stripe to scan on the object's surface. The drive device couples to and operates the photoelectron detector and the rotational scanning device. The image processing circuit can grab the light stripe instantly. The operational control device couples with the rotational scanning device and the photoelectron detector. The operational control device controls the motion of the rotational scanning device and the scanning position of the ...

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 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.

THREE-DIMENSIONAL MODELING METHOD AND SYSTEM THEREOF

A three-dimensional modeling method and a three-dimensional modeling system are provided. The three-dimensional modeling method includes the steps of: performing a 360-degree three-dimensional scan on a measured object to obtain regional scan data corresponding to a plurality of different scan areas of the measured object; registering the regional scan data to form 360-degree three-dimensional scan data, wherein the 360-degree three-dimensional scan data include three-dimensional spatial coordinate data, curvature data and scan area data of the measured object; basing on the 360-degree three-dimensional scan data to search morphing model data from a database unit; a step of comparing the 360-degree three-dimensional scan data and performing registering and morphing processes on the morphing model data to construct compensated-template three-dimensional model data; and, basing on the compensated-template three-dimensional model data to fill at least one unknown area of the 360-degree three-dimensional scan data.

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 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. 1. A depth image acquiring device , comprising:at least one projecting device, projecting a projection pattern to a measured object;a first and a second image sensing devices, receiving focal length adjusting signals to adjust focal lengths thereof, and respectively sensing the projection pattern projected to the measured object to generate a first real image and a second real image;a mechanism device, coupled to the first and the second image sensing devices, and receiving lens adjusting signals to adjust locations and/or convergence angles of the first and the second image sensing devices;a processing unit, coupled to the at least one projecting device, the first and the second image sensing devices and the mechanism device, providing the focal length adjusting signals and the lens adjusting signals to adjust the focal lengths, locations and/or convergence angles of the first and the second image sensing devices, and performing a depth operation on the first and the second real images to generate depth information,wherein the processing unit calibrates and obtains a ...

HANDHELD 3D SCANNING DEVICE AND THE METHOD THEREOF

In an embodiment of the disclosure, a handheld 3D scanning device is provided. The handheld 3D scanning device comprises at least one first 3D sensing module, at least one second 3D sensing module, and a fixing unit. Each of the at least one first 3D sensing module and the at least one second 3D sensing module comprises at least one projecting unit and at least one image sensing unit for performing a 3D scanning to an object to be measured. The fixing unit is provided to fix the at least one first 3D sensing module and the at least one second 3D sensing module at specific locations, respectively. 1. A handheld three dimensional (3D) scanning device , comprising:at least one first 3D sensing module and at least one second 3D sensing module, wherein each of the at least one first 3D sensing module and the at least one second 3D sensing module comprises at least one projecting unit and at least one image sensing unit for performing a 3D scanning to an object to be measured; anda fixing unit, provided to fix the at least one first 3D sensing module and the at least one second 3D sensing module at specific locations, respectively.2. The handheld 3D scanning device according to claim 1 , wherein the fixing unit comprises a first fixing part and a second fixing part claim 1 , and the at least one first 3D sensing module is fixed to the first fixing part claim 1 , the at least one second 3D sensing module is fixed to the second fixing part.3. The handheld 3D scanning device according to claim 2 , wherein a shape of the fixing unit is a ring structure.4. The handheld 3D scanning device according to claim 3 , wherein the ring structure is a circle claim 3 , an ellipse claim 3 , a parabolic shape claim 3 , a polygon or an irregular-shaped ring.5. The handheld 3D scanning device according to claim 2 , wherein the fixing unit further comprises an opening claim 2 , for facilitating a placement or a removal of the object to be measured.6. The handheld 3D scanning device according ...

Multi-touch position tracking apparatus and interactive system and image processing method using the same

The present invention provides a multi-touch position tracking technique and an interactive system and a multi-touch interactive image processing method using the same. In the present invention, a light guide element is designed to comprise frustrating structures to frustrate total internal reflection (TIR) so that the light beam therein can be dispersed to form a dispersed optical field distribution. The dispersed optical field is used to respond a physical relation between an object and the light guide element.

A multi-touch position tracking apparatus and interactive system and image processing method there of

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

Shape measurement device of dual-axial anamorphic image magnification

A photometric testing machine for vehicle lamp

System and method for measuring circumference of human body

A system and method for measuring circumference of human body are provided. The system includes a 3D sensor configured to obtain a 3D information of a human body with a garment on; a temperature sensor configured to obtain a thermal information of the human body with the garment on; a calibration unit configured to obtain a calibration parameter of the 3D sensor and the temperature sensor; a model generation unit configured to integrate the 3D information and the temperature information according to the calibration parameter to generate a 3D temperature model of the human body with the garment on; and a circumference computation unit configured to retrieve an original profile information corresponding to a target location from the 3D temperature model, and correct the original profile information according to a thermal compensation mechanism to obtain a real circumference of the human body corresponding to the target location.