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Development of Structured Illumination Reflectance Imaging Technique as a New Modality for Enhanced Defect Detection of Apples

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개인저자Lu, Yuzhen.
단체저자명Michigan State University. Biosystems Engineering.
서명/저자사항Development of Structured Illumination Reflectance Imaging Technique as a New Modality for Enhanced Defect Detection of Apples.
발행사항[S.l.] : Michigan State University., 2018
발행사항Ann Arbor : ProQuest Dissertations & Theses, 2018
형태사항273 p.
소장본 주기School code: 0128.
ISBN9780438277274
일반주기 Source: Dissertation Abstracts International, Volume: 79-12(E), Section: B.
Adviser: Renfu Lu.
요약Computer vision technology coupled with uniform illumination is still unsatisfactory in detecting some defects of apples, e.g., subsurface tissue bruising. Structured illumination (SI) provides an alternative illumination scheme, which is advant
요약A SIRI platform, capable of acquiring broadband and multispectral images, was constructed by using a digital micro-mirror device based digital light projector. Using sinusoidally-modulated illumination patterns, SIRI acquires phase-shifted patte
요약Demodulation is a critical step in obtaining DC and AC images, and conventional approaches require a minimum of three phase-shifted pattern images. New demodulation approaches based on spiral phase transform (SPT) and Gram-Schmidt orthonormaliza
요약Experiments were conducted on detection of subsurface bruising in apples of four varieties by using a multispectral SIRI system, in conjunction with the SPT demodulation approach. The six wavebands between 710 and 810 nm yielded the overall dete
요약This research has demonstrated the feasibility and potential of SIRI as a new versatile and effective tool for enhancing defect detection of apples. More research, however, is needed to improve the instrumentation and software of SIRI for real-t
일반주제명Agricultural engineering.
Engineering.
언어영어
기본자료 저록Dissertation Abstracts International79-12B(E).
Dissertation Abstract International
대출바로가기http://www.riss.kr/pdu/ddodLink.do?id=T15000906

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