Yvon Wong

Prof. Yvon Wong


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 October 2021 in Applied Sciences
Verified
Journal Article
Open access
PDF file
CCChun-Feng Chou
Chun-Feng Chou
CTCheng-Mu Tsai
Cheng-Mu Tsai
CCChao-Hsien Chen
Chao-Hsien Chen
YWYvon Wong
Yvon Wong
Yi chin FangYi chin Fang
Yi chin Fang
HLHsing-Yuan Liao
Hsing-Yuan Liao
In fields such as biology, archeology, and industry, underwater photogrammetry can be achieved using consumer-grade equipment. However, camera operations underwater differ considerably from those on land because underwater photogrammetry involves different optical phenomena. On the basis of the requirements and specifications of the marine vessel Polaris, we developed a novel underwater camera with prime and zoom lenses and a high resolving power. The camera can be used in the spectrum in shallow water and the blue–green spectrum in deep water. In the past, ordinary cameras would be placed in waterproof airtight boxes for underwater photography. These cameras were not optimized to the underwater spectrum and environment, resulting in no breakthroughs in resolving power. Furthermore, the use of the blue spectrum greatly increases during underwater and particularly deep-water surveying. Chromatic aberration and focus-point displacement generated by the shift from the shallow-water spectrum to the blue–green spectrum in deep water makes universal underwater photography even more difficult. Our proposed optical design aimed to overcome such challenges for the development of a high-resolution underwater surveying camera. We designed a prime lens and a zoom lens. We adopted a waterproof dome window on the outer surface as the basic structure and optimized it in accordance with the conditions of different water depths and spectra to obtain distortion within ±2% and high-resolution underwater imaging quality. For the zoom lens design, we employed a genetic algorithm in Zemax to attenuate chromatic aberration as a kind of extended optimization. This novel optical design that can be used in all waters is expected to greatly reduce the volume and weight of conventional underwater cameras by more than 50% and 60%, respectively, and increase their resolving power by 30–40%.

23 May 2024
Verified
Book Chapter
Closed access
PDF file
KVKirsten Lynx Valenzuela
Kirsten Lynx Valenzuela
SRSamantha Isabel Roxas
Samantha Isabel Roxas
YWYvon Wong
Yvon Wong

16 June 2022
Verified
Book Chapter
Closed access
PDF file
CAChristian Diego Allena
Christian Diego Allena
RLRyan Collin De Leon
Ryan Collin De Leon
YWYvon Wong
Yvon Wong

9 July 2023
Verified
Book Chapter
Closed access
PDF file
CJCarlos Alexander Jarquin
Carlos Alexander Jarquin
YCYicheng Cai
Yicheng Cai
ILI Xuan Lu
I Xuan Lu
YWYvon Wong
Yvon Wong

23 May 2024
Verified
Book Chapter
Closed access
PDF file
GMGrant Emmanuel Magbilang
Grant Emmanuel Magbilang
KVKirsten Lynx Valenzuela
Kirsten Lynx Valenzuela
SRSamantha Isabel Roxas
Samantha Isabel Roxas
YWYvon Wong
Yvon Wong