• No results found

Fringe Projection

Characterization of the head-to-trunk orientation with handheld optical 3D apparatus based on the fringe projection technique

Characterization of the head-to-trunk orientation with handheld optical 3D apparatus based on the fringe projection technique

... combination with fringe projection. The shape of the subject ’ s upper trunk and head is reconstructed from a single image using the Fourier transform profilometry method. Two shape measurements are ...

14

A simple, flexible and automatic 3D calibration method for a phase calculation based fringe projection imaging system

A simple, flexible and automatic 3D calibration method for a phase calculation based fringe projection imaging system

... calculation-based fringe projection imaging ...three fringe pattern sets with the optimum fringe numbers onto the plate ...calculation-based fringe projection imaging system with ...

10

Improved least-squares method for phase-to-height relationship in fringe projection profilometry

Improved least-squares method for phase-to-height relationship in fringe projection profilometry

... the system to be arranged arbitrarily and avoids the prob- lems of accurate geometric parameter determination. Du et al. proposed an equation for the phase-to-height relation- ship using the coordinate transformation ...

11

Digital fringe projection for hand surface coordinate variation analysis caused by osteoarthritis

Digital fringe projection for hand surface coordinate variation analysis caused by osteoarthritis

... digital fringe projection system has successfully been proven to be an effective surface measurement for early hand osteoarthritis ...the fringe projection system on real patients with ...

5

Flexible decoupled camera and projector fringe projection system using inertial sensors

Flexible decoupled camera and projector fringe projection system using inertial sensors

... move independently with respect to each other, which limits the ability of the system to overcome object self- occlusions. We demonstrate a fringe projection setup where the camera can move independently ...

6

Statistical characterization of evaluation strategies for fringe projection systems by means of a model-based noise prediction

Statistical characterization of evaluation strategies for fringe projection systems by means of a model-based noise prediction

... be pointed out however that this is not to be confused with a measurement uncertainty as it is only a method to ensure that the system is working in conformity with the specifi- cations. The experimental determination of ...

9

In process measurement and monitoring of a polymer laser sintering powder bed with fringe projection

In process measurement and monitoring of a polymer laser sintering powder bed with fringe projection

... Fringe projection has been suggested for post-process optical form metrology of metal AM parts [34], as well as being demonstrated in metal PBF as an in-situ powder bed measurement technique ...with ...

17

Stair phase-coding fringe plus phase-shifting used in 3D measuring profilometry

Stair phase-coding fringe plus phase-shifting used in 3D measuring profilometry

... sinusoidal fringe patterns to eliminate phase ...speckle-embedded fringe projection method using a graphics processing unit to process data in real ...different fringe image bright- ness ...

11

The Influence Of Measurement Methods On 3D Digitizer Accuracy

The Influence Of Measurement Methods On 3D Digitizer Accuracy

... or fringe projection can obtain a large amount of point data in a short period of time and the accuracy of laser systems vary typically from 1 μm up to 20 μm, whereas fringe projection systems ...

24

Qualification concept for optical multi-scale multi-sensor systems

Qualification concept for optical multi-scale multi-sensor systems

... The measuring ranges of the considered optical sensors are significantly smaller than the artefact’s size. Setting up a multi-sensor measurement, the sensors’ measuring ranges are positioned onto a measuring object. ...

8

Handheld Optical System for Skin Topography Measurement Using Fourier Transform Profilometry

Handheld Optical System for Skin Topography Measurement Using Fourier Transform Profilometry

... Indeed great advancements have been made in skin surface measuring techniques and in the development of such systems and devices. The most practical and therefore most widely used technique for in-vivo skin surface ...

7

Demarcating Fringe Science for Policy

Demarcating Fringe Science for Policy

... what are sociologists working under the prescriptions of Wave 2 of science studies to make of these alternative claims and, more to the point as far as this paper is concerned, what is to be made of them by those who run ...

28

SME Fringe Benefits Provision

SME Fringe Benefits Provision

... The aim of this paper is to inform the reader about the distribution of fringe benefits provided to employees by firms in 10 provinces of Vietnam. Five types of benefits are considered: Annual leave, maternity ...

11

Camera focusing based on fringe pattern matching

Camera focusing based on fringe pattern matching

... on fringe pattern matching is ...a fringe analysis system, and the results from the three well-known focus measures— gray-level variance, image gradient, and Laplacian—were also obtained in the experiment ...

6

Understanding the Socio-Economic Situation & Deprivation of Marginal Farmers in Peri-Urban Delhi

Understanding the Socio-Economic Situation & Deprivation of Marginal Farmers in Peri-Urban Delhi

... after land acquisition the farmer which was earlier a medium may have turned a marginal farmer but still better in socio- economic profile. Therefore all throughout the problems of marginal farmers does not apply to the ...

14

The Federal Government in the Fringe Economy

The Federal Government in the Fringe Economy

... power to set rate caps on credit products. See Warren, supra note 208, at 13–14. (“While states still play some role, particularly in the regulation of real-estate transactions, their primary tool—interest rate ...

56

Conflicts arise on the urban fringe

Conflicts arise on the urban fringe

... Local governments need to establish firm urbangrowth boundaries, create buffers between agriculture and urban land uses, and zone to eliminate incompatible land uses in agricultural area[r] ...

6

A Multidisciplinary Approach for Determining the Extents of the Beds of Complex Natural Lakes in Louisiana

A Multidisciplinary Approach for Determining the Extents of the Beds of Complex Natural Lakes in Louisiana

... cypress fringe that follows the 36 foot contour with "remarkable precision" (Figures 17-19) and the escarpment that follows the 36 foot ...cypress fringe identified by Russell and Brown contains the ...

191

An information processing view of fringe consciousness

An information processing view of fringe consciousness

... A sense of diffuse awareness is associated with a process that copies each of these representations to long-term memory. Diffuse awareness is thus distributed across the whole architecture, with nine distinct qualitative ...

10

Locational stress on Sydney's metropolitan fringe

Locational stress on Sydney's metropolitan fringe

... metropolitan fringe, however, these conflicts have additional consequences because of the impact work schedules have on mobility patterns and, there­ fore, locational ...

358

Show all 1923 documents...

Related subjects