Abstract: A method of identifying a flange specification based on an augmented reality interface includes steps of: providing a first interface, through which an operator picks real-time images of a flange at different viewing angles, and creating a virtual flange surface according to the real-time images; providing a second interface, through which the operator picks three circumferential points corresponding to the flange, and creating a virtual flange model having a virtual outer diameter; providing a third interface, through which the operator adjusts a virtual pitch circle diameter of the virtual flange model; providing a fourth interface, through which the operator adjusts a virtual thickness of the virtual flange model; providing a fifth interface, through which the operator inputs a count of bolts; and searching a database according to the virtual outer diameter, the virtual pitch circle diameter and the virtual thickness of the virtual flange model to obtain searched results.

Abstract: A method of identifying a flange specification based on an augmented reality interface includes steps of: providing a first interface, through which an operator picks real-time images of a flange at different viewing angles, and creating a virtual flange surface according to the real-time images; providing a second interface, through which the operator picks three circumferential points corresponding to the flange, and creating a virtual flange model having a virtual outer diameter; providing a third interface, through which the operator adjusts a virtual pitch circle diameter of the virtual flange model; providing a fourth interface, through which the operator adjusts a virtual thickness of the virtual flange model; providing a fifth interface, through which the operator inputs a count of bolts; and searching a database according to the virtual outer diameter, the virtual pitch circle diameter and the virtual thickness of the virtual flange model to obtain searched results.

Abstract: A human negligence warning method based on augmented reality includes steps of: using a smart wearable device to photograph multiple physical operation elements of an electronic apparatus to obtain interface depth data; performing spatial position calculations according to the interface depth data, to set corresponding wrapping geometry elements between the physical operation elements and the smart wearable device to wrap the physical operation elements, respectively; photograph a hand of a wearer wearing the smart wearable device to obtain a gesture and a spatial position of the hand; and judging whether the hand touches one of the wrapping geometry elements according to the gesture and the spatial position, and further judging whether a corresponding procedure to be initiated by the physical operation element is correct if yes, If the corresponding procedure is not correct, then an warning operation is performed to avoid human negligence.

Abstract: A method and system of virtual footwear try-on with improved occlusion processing are disclosed. The method comprises: capturing a foot image of a user; defining an ankle joint point in the foot image and defining at least one reference point according to the ankle joint point; capturing depth point data within a spatial range around the reference point and constructing an occlusion model according to the depth point data; positioning the occlusion model to a position corresponding to the foot image to obtain an occlusion processed image; positioning the footwear model on the occlusion processed image to produce a matching image of the footwear model and the foot; and hiding the occlusion model.

Abstract: Various examples and techniques pertaining to audio output monitoring for failure detection of warning sound playback are described. In one aspect, audio data, which includes a plurality of bits of a first sound sample and one or more control bits for integrity check, is retrieved from a data storage. The audio data is processed by: (i) performing an integrity check on the first sound sample based on the one or more control bits, and (ii) playing back a first sound using the first sound sample. The first sound can be a warning sound in automobile applications.

Abstract: Various examples and techniques pertaining to audio output monitoring for failure detection of warning sound playback are described. In one aspect, audio data, which includes a plurality of bits of a first sound sample and one or more control bits for integrity check, is retrieved from a data storage. The audio data is processed by: (i) performing an integrity check on the first sound sample based on the one or more control bits, and (ii) playing back a first sound using the first sound sample. The first sound can be a warning sound in automobile applications.

Abstract: A process planning apparatus based on augmented reality (AR) includes: a camera set capturing color and depth images of a processing machine and a probe operated by a human user in a real scene; a processor, which is signal-connected to the camera set and the processing machine, creates spatial intelligences for motion planning of the probe operated by the human user in an AR environment that combines a virtual workpiece with the real scene, and generates instructional data from the spatial intelligences to guide the human user to operate the probe to produce machine motion data for a manufacturing task; and an output interface, which is signal-connected to the processor and outputs scene data, the virtual workpiece and the instructional data to the human user.

Abstract: A method and system of virtual footwear try-on with improved occlusion processing are disclosed. The method comprises: capturing a foot image of a user; defining an ankle joint point in the foot image and defining at least one reference point according to the ankle joint point; capturing depth point data within a spatial range around the reference point and constructing an occlusion model according to the depth point data; positioning the occlusion model to a position corresponding to the foot image to obtain an occlusion processed image; positioning the footwear model on the occlusion processed image to produce a matching image of the footwear model and the foot; and hiding the occlusion model.

Abstract: Various examples and techniques pertaining to audio output monitoring for failure detection of warning sound playback are described. In one aspect, audio data, which includes a plurality of bits of a first sound sample and one or more control bits for integrity check, is retrieved from a data storage. The audio data is processed by: (i) performing an integrity check on the first sound sample based on the one or more control bits, and (ii) playing back a first sound using the first sound sample. The first sound can be a warning sound in automobile applications.

Abstract: Various examples and techniques pertaining to audio output monitoring for failure detection of warning sound playback are described. In one aspect, audio data, which includes a plurality of bits of a first sound sample and one or more control bits for integrity check, is retrieved from a data storage. The audio data is processed by: (i) performing an integrity check on the first sound sample based on the one or more control bits, and (ii) playing back a first sound using the first sound sample. The first sound can be a warning sound in automobile applications.

Abstract: A process planning apparatus based on augmented reality (AR) includes: a camera set capturing color and depth images of a processing machine and a probe operated by a human user in a real scene; a processor, which is signal-connected to the camera set and the processing machine, creates spatial intelligences for motion planning of the probe operated by the human user in an AR environment that combines a virtual workpiece with the real scene, and generates instructional data from the spatial intelligences to guide the human user to operate the probe to produce machine motion data for a manufacturing task; and an output interface, which is signal-connected to the processor and outputs scene data, the virtual workpiece and the instructional data to the human user.

Abstract: A method of improving occluded edge quality in an augmented reality system includes a data input step of using a camera set to capture a scene and an object set in the scene to obtain an original image; an occluded region extracting step of obtaining an extracted image by performing a difference operation according to a first image and a second image, which are obtained according to depth buffer calculations according to first and second virtual planes set in the scene; and an occluded image generating step of inserting a virtual object into the original image according to the extracted image, the original image and a third virtual plane, which is set between the first and second virtual planes, to obtain an occluded image with a smoothened occluded edge.

Abstract: A method of improving occluded edge quality in an augmented reality system comprises: a data input step of using a camera set to capture a scene and an object set in the scene to obtain an original image; an occluded region extracting step of obtaining an extracted image by performing a difference operation according to a first image and a second image, which are obtained according to depth buffer calculations according to first and second virtual planes set in the scene; and an occluded image generating step of inserting a virtual object into the original image according to the extracted image, the original image and a third virtual plane, which is set between the first and second virtual planes, to obtain an occluded image with a smooth occluded edge.

Abstract: A method for optimizing occlusion occurring in an augmented reality system comprising a depth camera and a two-dimensional camera comprises the steps of: capturing, by a depth camera, a scene and an object in the scene to obtain initial depth data, and capturing, by the two-dimensional camera, the scene and the object to obtain two-dimensional image data; in-painting the initial depth data to obtain in-painted depth data; performing a depth buffer calculation according to the in-painted depth data and a virtual model to obtain an occlusion relationship between the object and the virtual model, and generating an occluded partial image according to the two-dimensional image data and the virtual model; estimating partially approximated polygon according to the occluded partial image; and generating an occluded result according to the partially approximated polygon, the two-dimensional image data and the virtual model.

Abstract: This invention provides a novel tool path planning method for five-axis flank milling by imposing the constraints of curve interpolation on the tool path. The tool motion is described in the form of spline curves during its optimization-driven calculation process, instead of discrete cutter locations in CNC linear interpolation. The coefficients of the curve equations are generated by minimizing accumulated geometrical errors on the machined surface using optimization algorithms. The continuity imposed by the spline motion reduces uneven modifications of cutter locations during the optimization process. The resultant tool path yields superior.

Abstract: A method for optimizing occlusion occurring in an augmented reality system comprising a depth camera and a two-dimensional camera comprises the steps of: capturing, by a depth camera, a scene and an object in the scene to obtain initial depth data, and capturing, by the two-dimensional camera, the scene and the object to obtain two-dimensional image data; in-painting the initial depth data to obtain in-painted depth data; performing a depth buffer calculation according to the in-painted depth data and a virtual model to obtain an occlusion relationship between the object and the virtual model, and generating an occluded partial image according to the two-dimensional image data and the virtual model; estimating partially approximated polygon according to the occluded partial image; and generating an occluded result according to the partially approximated polygon, the two-dimensional image data and the virtual model.

Abstract: This invention provides a novel tool path planning method for five-axis flank milling by imposing the constraints of curve interpolation on the tool path. The tool motion is described in the form of spline curves during its optimization-driven calculation process, instead of discrete cutter locations in CNC linear interpolation. The coefficients of the curve equations are generated by minimizing accumulated geometrical errors on the machined surface using optimization algorithms. The continuity imposed by the spline motion reduces uneven modifications of cutter locations during the optimization process. The resultant tool path yields superior.

Abstract: The present invention discloses a five-axis flank milling system for machining a curved surface and a tool-path planning method. The method generates a tool path comprising a series of cutter locations by optimization with minimizing machining errors. The tool path planning method includes a reciprocating tool path planning method and a multi-pass tool path planning method. The reciprocating tool path planning method eliminates the “forward only” limitation. The tool is allowed to move backward in certain regions, producing smaller machining errors compared with forward only cutter movement. Furthermore, the multi-pass tool path planning method computes various tool paths applied to finish milling multiple times. Each path can be chosen to be generated by minimizing undercut error, overcut error, or the total machining error. The machining errors are reduced in a progressive manner, resulting in better machining quality than single pass tool path.

Abstract: The invention discloses a five-axis flank milling system for machining curved surface and the method thereof, the system is capable of generating a tool path that minimizes the undercut error, overcut error, or the total machining error. The amount of the overcut, undercut, or total machining errors can be precisely controlled by adjustment of the cutter locations contained in a tool path. This invention is to transform tool path planning in five-axis flank milling into an optimal matching problem. The proposed mechanism of the invention significantly improves the manufacturing capability of five-axis flank milling. It enhances the machining quality by reducing various machining errors and provides a systematic approach to precise control of machining error in five-axis flank milling.

Abstract: A method for streaming multi-LOD design feature of a 3D-CAD model comprises defining a LOD of a 3D-CAD model with each design feature of the 3D-CAD model, wherein the design feature is the smallest 3D-CAD model constructing unit; constructing the LOD of the 3D-CAD model into a decomposition data structure of LOD design feature recording each design feature of the 3D-CAD model in different LODs, wherein the LOD comprises all unit assembly faces of the design features; constructing a switch face display mechanism controlling whether each design feature of the 3D-CAD model is displayed; and encapsulating a designated design feature into a packet based on users' configuration and transmitting the packet.