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Phase retrieval from reflective fringe patterns of double-sided transparent objects

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Phase retrieval from reflective fringe patterns of double-sided transparent objects
นักวิจัย : Huang, Lei , Asundi, Anand Krishna
คำค้น : DRNTU::Engineering::Mechanical engineering
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : http://hdl.handle.net/10220/11125 , http://dx.doi.org/10.1088/0957-0233/23/8/085201
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Measurement science and technology
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

'Ghosted' fringe patterns simultaneously reflected from both the upper and lower sides of a transparent target in the fringe reflection technique are captured for transparent surface 3D shape measurement, but the phase retrieval from the captured 'ghosted' fringe patterns is still not solved. A novel method is proposed to solve this issue by using two sets of phase-shifted fringe patterns with slightly different frequencies. The nonlinear least-squares method is used to estimate the fringe phase and modulation from both front and rear interfaces. Several simulations are done to show the feasibility of the proposed method. The influence of fringe noise on the algorithm is studied as well, which indicates that the proposed method is able to retrieve the phase from double-sided reflective fringe patterns with fringe noise equivalent to that in practical measurements. The merits and limitations of the method are discussed and recommendations for future studies are made.

บรรณานุกรม :
Huang, Lei , Asundi, Anand Krishna . (2555). Phase retrieval from reflective fringe patterns of double-sided transparent objects.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Huang, Lei , Asundi, Anand Krishna . 2555. "Phase retrieval from reflective fringe patterns of double-sided transparent objects".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Huang, Lei , Asundi, Anand Krishna . "Phase retrieval from reflective fringe patterns of double-sided transparent objects."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Huang, Lei , Asundi, Anand Krishna . Phase retrieval from reflective fringe patterns of double-sided transparent objects. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.