Journal of the Optical Society of Korea最新文献_第10页

Hybrid Color and Grayscale Images Encryption Scheme Based on Quaternion Hartley Transform and Logistic Map in Gyrator Domain 基于四元数Hartley变换和Gyrator域Logistic映射的彩色和灰度混合图像加密方案

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.042

Jianzhong Li

{"title":"Hybrid Color and Grayscale Images Encryption Scheme Based on Quaternion Hartley Transform and Logistic Map in Gyrator Domain","authors":"Jianzhong Li","doi":"10.3807/JOSK.2016.20.1.042","DOIUrl":"https://doi.org/10.3807/JOSK.2016.20.1.042","url":null,"abstract":"A hybrid color and grayscale images encryption scheme based on the quaternion Hartley transform (QHT), the two-dimensional (2D) logistic map, the double random phase encoding (DRPE) in gyrator transform (GT) domain and the three-step phase-shifting interferometry (PSI) is presented. First, we propose a new color image processing tool termed as the quaternion Hartley transform, and we develop an efficient method to calculate the QHT of a quaternion matrix. In the presented encryption scheme, the original color and grayscale images are represented by quaternion algebra and processed holistically in a vector manner using QHT. To enhance the security level, a 2D logistic map-based scrambling technique is designed to permute the complex amplitude, which is formed by the components of the QHT-transformed original images. Subsequently, the scrambled data is encoded by the GT-based DRPE system. For the convenience of storage and transmission, the resulting encrypted signal is recorded as the real-valued interferograms using three-step PSI. The parameters of the scrambling method, the GT orders and the two random phase masks form the keys for decryption of the secret images. Simulation results demonstrate that the proposed scheme has high security level and certain robustness against data loss, noise disturbance and some attacks such as chosen plaintext attack.","PeriodicalId":49986,"journal":{"name":"Journal of the Optical Society of Korea","volume":"20 1","pages":"42-54"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70138534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Role of Arbitrary Intensity Profile Laser Beam in Trapping of RBC for Phase-imaging 任意强度轮廓激光束在相位成像中捕获红细胞中的作用

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.078

Ranjeet Kumar, V. Srivastava, D. Mehta, C. Shakher

{"title":"Role of Arbitrary Intensity Profile Laser Beam in Trapping of RBC for Phase-imaging","authors":"Ranjeet Kumar, V. Srivastava, D. Mehta, C. Shakher","doi":"10.3807/JOSK.2016.20.1.078","DOIUrl":"https://doi.org/10.3807/JOSK.2016.20.1.078","url":null,"abstract":"Red blood cells (RBCs) are customarily adhered to a bio-functionalised substrate to make them stationary in interferometric phase-imaging modalities. This can make them susceptible to receive alterations in innate morphology due to their own weight. Optical tweezers (OTs) often driven by Gaussian profile of a laser beam is an alternative modality to overcome contact-induced perturbation but at the same time a steeply focused laser beam might cause photo-damage. In order to address both the photo-damage and substrate adherence induced perturbations, we were motivated to stabilize the RBC in OTs by utilizing a laser beam of ‘arbitrary intensity profile’ generated by a source having cavity imperfections per se. Thus the immobilized RBC was investigated for phase-imaging with sinusoidal interferograms generated by a compact and robust Michelson interferometer which was designed from a cubic beam splitter having one surface coated with reflective material and another adjacent coplanar surface aligned against a mirror. Reflected interferograms from bilayers membrane of a trapped RBC were recorded and analyzed. Our phase-imaging set-up is limited to work in reflection configuration only because of the availability of an upright microscope. Due to RBC’s membrane being poorly reflective for visible wavelengths, quantitative information in the signal is weak and therefore, the quality of experimental results is limited in comparison to results obtained in transmission mode by various holographic techniques reported elsewhere.","PeriodicalId":49986,"journal":{"name":"Journal of the Optical Society of Korea","volume":"20 1","pages":"78-87"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70138556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Prediction of Glucose Concentration in a Glucose-Lactose Mixture Based on the Reflective Optical Power at Dual Probe Wavelengths 基于双探针波长反射光功率的葡萄糖-乳糖混合物中葡萄糖浓度预测

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.199

Song Gao, Wenjing Yue, Sang‐Shin Lee

{"title":"Prediction of Glucose Concentration in a Glucose-Lactose Mixture Based on the Reflective Optical Power at Dual Probe Wavelengths","authors":"Song Gao, Wenjing Yue, Sang‐Shin Lee","doi":"10.3807/JOSK.2016.20.1.199","DOIUrl":"https://doi.org/10.3807/JOSK.2016.20.1.199","url":null,"abstract":"Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, South Korea(Received September 17, 2015 : revised November 11, 2015 : accepted December 8, 2015)An enzyme-free optical method is proposed for estimating high concentrations of glucose in a glucose-lactose mixture, based on a predictive equation that takes advantage of the reflective optical power observed at two discrete wavelengths. Compared to the conventional absorption spectroscopy method based on Beer’s Law, which is mainly valid for concentrations below hundreds of mg/dL, the proposed scheme, which relies on reflection signals, can be applied to measure higher glucose concentrations, of even several g/dL in a glucose-lactose mixture. Two probe wavelengths of 1160 and 1300 nm were selected to provide a linear relationship between the reflective power and pure glucose/lactose concentration, where the relevant linear coefficients were derived to complete the predictive equation. Glucose concentrations from 2 to 7 g/dL in a glucose-lactose mixture were efficiently estimated, using the established predictive equation based on monitored reflective powers. The standard error of prediction was 1.17 g/dL.Keywords : High glucose concentration, Correlation coefficient, Glucose-lactose mixture, Reflective optical powerOCIS codes : (280.4788) Optical sensing and sensors; (120.5700) Reflection; (330.1880) Detection; (350.4800) Optical standards and testing","PeriodicalId":49986,"journal":{"name":"Journal of the Optical Society of Korea","volume":"20 1","pages":"199-203"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70139166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Identification and Determination of Oil Pollutants Based on 3-D Fluorescence Spectrum Combined with Self-weighted Alternating Trilinear Decomposition Algorithm 基于三维荧光光谱结合自加权交替三线性分解算法的石油污染物识别与测定

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.204

Pengfei Cheng, Yutian Wang, Zhi-kun Chen, Zhe Yang

{"title":"Identification and Determination of Oil Pollutants Based on 3-D Fluorescence Spectrum Combined with Self-weighted Alternating Trilinear Decomposition Algorithm","authors":"Pengfei Cheng, Yutian Wang, Zhi-kun Chen, Zhe Yang","doi":"10.3807/JOSK.2016.20.1.204","DOIUrl":"https://doi.org/10.3807/JOSK.2016.20.1.204","url":null,"abstract":"Oil pollution seriously endangers the biological environment and human\u0000 health. Due to the diversity of oils and the complexity of oil composition, it is of\u0000 great significance to identify the oil contaminants. The 3-D fluorescence spectrum\u0000 combined with a second order correction algorithm was adopted to measure an oil\u0000 mixture with overlapped fluorescence spectra. The self-weighted alternating\u0000 trilinear decomposition (SWATLD) is a kind of second order correction, which has\u0000 developed rapidly in recent years. Micellar solutions of #0 diesel, #93 gasoline and\u0000 ordinary kerosene in different concentrations were made up. The 3-D fluorescence\u0000 spectra of the mixed oil solutions were measured by a FLS920 fluorescence\u0000 spectrometer. The SWATLD algorithm was applied to decompose the spectrum data. The\u0000 predict concentration and recovery rate obtained by the experiment show that the\u0000 SWATLD algorithm has advantages of insensitivity to component number and high\u0000 resolution for mixed oils.","PeriodicalId":49986,"journal":{"name":"Journal of the Optical Society of Korea","volume":"20 1","pages":"204-211"},"PeriodicalIF":0.0,"publicationDate":"2016-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70139180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Investigation on HT-AlN Nucleation Layers and AlGaN Epifilms Inserting LT-AlN Nucleation Layer on C-Plane Sapphire Substrate c面蓝宝石衬底上HT-AlN成核层和嵌入LT-AlN成核层的AlGaN外膜的研究

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.125

D. Wang, T. Xu

引用次数: 0

Performance Evaluation of MTF Peak Detection Methods by a Statistical Analysis for Phone Camera Modules 基于统计分析的手机摄像头模块MTF峰值检测方法性能评价

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.150

Jong-Hoon Kwon, H. Rhee, Y. Ghim, Yunwoo Lee

引用次数: 2

Convex Optimization Approach to Multi-Level Modulation for Dimmable Visible Light Communications under LED Efficiency Droop LED效率下降下可调光可见光通信的多级调制凸优化方法

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.029

Sang Hyun Lee, I. Park, J. Kwon

引用次数: 1

Dependence of Q Factor on Surface Roughness in a Plasmonic Cavity 等离子体腔中Q因子对表面粗糙度的影响

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.188

Yoon-Ho Kim, Soon-Hong Kwon, H. Ee, Yongsop Hwang, You-Shin No, H. Park

引用次数: 3

Ghost Imaging with Different Speckle Sizes of Thermal Light 热光不同散斑大小的鬼影成像

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.008

Wang Jue, Yu Renlong, Xin Yu, Shao Yanming, Chen Yanru, Zhao Qi

引用次数: 5

Laser Speckle Contrast Imaging for Measuring Cerebral Blood Flow Changes Caused by Electrical Sensory Stimulation 激光散斑对比成像测量电刺激引起的脑血流变化

Journal of the Optical Society of Korea Pub Date : 2016-02-01 DOI: 10.3807/JOSK.2016.20.1.088

Ahra Cho, Chanmi Yeon, Donghyeon Kim, Euiheon Chung

引用次数: 9