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The appearance of mollusk shells related to reflection by absorbing periodically stratified media 反射:软体动物壳的外观，与吸收周期性层状介质反射有关
Journal of the Optical Society of America Pub Date : 2023-10-16 DOI: 10.1364/josaa.501009
John Lekner
{"title":"The appearance of mollusk shells related to reflection by absorbing periodically stratified media","authors":"John Lekner","doi":"10.1364/josaa.501009","DOIUrl":"https://doi.org/10.1364/josaa.501009","url":null,"abstract":"The theory of the optical properties of an absorbing periodically stratified medium is applied to the spectral and angular dependence of the reflectivity of mollusk shells, which are almost-periodic structures of aragonite plates alternating with thinner organic layers. The reflectivity of s and p polarizations show strong variation as the angle of incidence passes through the stop bands of the corresponding ideal non-absorbing periodic structure. For both polarizations of incident light, and at most angles of incidence, the blue and green wavelengths are reflected more than the red-hence the blue-green appearance of mollusk shells.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112232","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: 0
Three-dimensional reconstruction of mobile binocular stereo vision based on push-broom line structured light for workpiece surface 基于推扫线结构光的移动双目立体视觉工件表面三维重建
Journal of the Optical Society of America Pub Date : 2023-10-13 DOI: 10.1364/josaa.495352
Yue Wang, Xueyou Han, Rui Jing, Hailan Zhang, Lei Yin, Xuefeng Zhang, Xiangjun Wang
{"title":"Three-dimensional reconstruction of mobile binocular stereo vision based on push-broom line structured light for workpiece surface","authors":"Yue Wang, Xueyou Han, Rui Jing, Hailan Zhang, Lei Yin, Xuefeng Zhang, Xiangjun Wang","doi":"10.1364/josaa.495352","DOIUrl":"https://doi.org/10.1364/josaa.495352","url":null,"abstract":"Stereo vision technology based on line structured light can effectively solve the problem of a three-dimensional (3D) reconstruction of a smooth surface. A method for 3D reconstruction of mobile binocular stereo vision based on push-broom line structured light for a workpiece surface is presented in this paper. The subpixel coordinates of the light strip centers of the line structured light are obtained by the Steger algorithm while the binocular module moves along the guide rail, and the polar constraint is used to achieve the matching of the extracted light strip centers. As a result, the 3D coordinates of the light strip centers in each location can be calculated because of the known interior and external parameters of the binocular module. To obtain the 3D point cloud data of the entire surface, a relative pose optimization method with respect to the initial frame is proposed, which accurately estimates the pose of the cameras in each location with respect to that in the initial location and unifies the 3D coordinates of the light strip centers in each location to the datum coordinates. The relative pose optimization method first estimates the rough values by using the direct linear transform method, and then iteratively calculates the refined solutions based on the principle of minimizing the re-projection errors. Simulation data and substantial experimental results validate the effectiveness of our method. Our method is compared to the direct linear transform method and the frame-by-frame transfer method, and the root mean square error (RMSE) of the distance from 3D point cloud to fitted plane is used to evaluate the 3D reconstruction accuracy. The repeatability experiment shows that the RMSE from our method is as low as 0.83 mm.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918536","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: 0
Camera calibration using the dual double-contact property of circles 摄像机标定利用双圆的双接触特性
Journal of the Optical Society of America Pub Date : 2023-10-13 DOI: 10.1364/josaa.493181
Rong Zeng, Yue Zhao, Yuyang Chen
{"title":"Camera calibration using the dual double-contact property of circles","authors":"Rong Zeng, Yue Zhao, Yuyang Chen","doi":"10.1364/josaa.493181","DOIUrl":"https://doi.org/10.1364/josaa.493181","url":null,"abstract":"To mitigate the influence of the relative positional relationship between circles on camera calibration, this study explores the double contact of dual circles with dual circular points. We demonstrate that one of the generalized eigenvectors of two dual circles corresponds to the line passing through their respective centers. Moreover, we establish a methodology to identify this line from the three generalized eigenvectors and show that, regardless of the positional arrangement of the three co-planar circles, the image of the circular points can be constructed by calculating the image of this line. Consequently, the applicability of circles as calibration templates is expanded, enabling the development of a novel optimization technique for fitting circular images with enhanced calibration precision.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918525","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: 0
Confocal Microscopy 3D Measurement Method Based on Double Fuzzy 基于双模糊的共聚焦显微镜三维测量方法
Journal of the Optical Society of America Pub Date : 2023-10-12 DOI: 10.1364/josaa.499900
Tao Yuan, Wei Jiang, Yiqing Ye, Yongj Hai, Dingrong Yi
{"title":"Confocal Microscopy 3D Measurement Method Based on Double Fuzzy","authors":"Tao Yuan, Wei Jiang, Yiqing Ye, Yongj Hai, Dingrong Yi","doi":"10.1364/josaa.499900","DOIUrl":"https://doi.org/10.1364/josaa.499900","url":null,"abstract":"In this paper, we propose a confocal microscopy based on dual blur depth measurement (DBCM). The first blur is defocus blur, and the second blur is artificial convolutional blur. First, the DBCM blurs the defocus image using a known Gaussian kernel and calculates the edge gradient ratio between it and the re-blurred image. Then, the axial measurement of edge positions is based on a calibration measurement curve. Finally, depth information is inferred from the edges using the original image. Experiments show that the DBCM can achieve depth measurement in a single image. In a 10×/0.25 objective, the error measured for a step sample of 4.7397 µm is 0.23 µm. The relative error rate is 4.8%.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"263 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135923467","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: 0
Self-healing properties of optical pin beams 光学针束的自愈特性
Journal of the Optical Society of America Pub Date : 2023-10-12 DOI: 10.1364/josaa.504042
Aiqian Yu, Gaofeng Wu
{"title":"Self-healing properties of optical pin beams","authors":"Aiqian Yu, Gaofeng Wu","doi":"10.1364/josaa.504042","DOIUrl":"https://doi.org/10.1364/josaa.504042","url":null,"abstract":"In some situations, the beam is partially blocked by an obstacle during propagation, and the influence of the obstacle and ways to decrease the influence have been studied for practical applications. The self-healing effect of Bessel beams is considered as one potential technology for this. The optical pin beam (OPB) can evolve into a Bessel-like beam and can retain its robust property after long-distance propagation. In this paper, we study the propagation property of an OPB after it is partially blocked by an obstacle. We observe the self-healing effects of the OPB and find that it exhibits robust self-healing abilities. An experiment is conducted to confirm the self-healing effect of the OPB. As one example of the application of the self-healing effect, the radiation forces of an obstructed OPB are calculated. Our findings may have important applications in various fields such as micro-imaging, trapping, and long-distance optical communication under disturbance conditions.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136013464","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: 0
Manipulation of polarization conversion and dual foci in a twisted caustic vector optical field in free space 自由空间扭曲焦散矢量光场中偏振转换和双聚焦的操纵
Journal of the Optical Society of America Pub Date : 2023-10-11 DOI: 10.1364/josaa.504384
Yingqi Huang, Baoyin Liu, Liu xia, Xiao-Bo Hu, Khian-Hooi Chew, Rui-Pin Chen
{"title":"Manipulation of polarization conversion and dual foci in a twisted caustic vector optical field in free space","authors":"Yingqi Huang, Baoyin Liu, Liu xia, Xiao-Bo Hu, Khian-Hooi Chew, Rui-Pin Chen","doi":"10.1364/josaa.504384","DOIUrl":"https://doi.org/10.1364/josaa.504384","url":null,"abstract":"Manipulation of polarization states in a complex structured optical field during propagation has become an important topic due to its fundamental interest and potential applications. This work demonstrates the effect of the caustic and twisting phases on the polarization states of a vector beam experimentally and theoretically. The novel properties of polarization evolution, especially the conversions of different states of polarization (SoPs) in a twisted caustic vector beam, occur during propagation in free space because of the modulation of twisting and caustic phases. The orthogonal polarization components tend to appear on the beam centers of two foci, and the two focal distances are closely related to the caustic and twisting phases. The twisting and caustic phases can manipulate the conversions between linear and circular polarization components that occur during propagation. These results provide a new approach to more complex manipulations of a structured optical field, especially in tailoring the evolution of polarization states and two foci. They may find potential applications in the corresponding field.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136097820","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: 0
3D solid of SARS-CoV-2 viral particles applied Legendre polynomials from Tomography Fourier analysis 应用层析傅里叶分析的勒让德多项式对SARS-CoV-2病毒颗粒的三维固体
Journal of the Optical Society of America Pub Date : 2023-10-10 DOI: 10.1364/josaa.498859
Jesús Arriaga Hernández, Bolivia Otahola, María Morín Castillo, Jose Oliveros
{"title":"3D solid of SARS-CoV-2 viral particles applied Legendre polynomials from Tomography Fourier analysis","authors":"Jesús Arriaga Hernández, Bolivia Otahola, María Morín Castillo, Jose Oliveros","doi":"10.1364/josaa.498859","DOIUrl":"https://doi.org/10.1364/josaa.498859","url":null,"abstract":"We show the construction of 3D solids (volumetric 3D models) of SARS-CoV-2 viral particles from the tomographic studies (videos) of SARS-CoV-2-infected tissues. To this aim, we propose a video analysis (tomographic images) by frames (medical images of the virus), which we set as our metadata. We optimize the frames by means of Fourier analysis, which induces a periodicity with simple structure patterns to minimize noise filtering and to obtain an optimal phase of the objects in the image, focusing on the SARS-CoV-2 cells to obtain a medical image under study phase (MIS) (process repeated over all frames). We build a Python algorithm based on Legendre polynomials called “2DLegendre_Fit,” which generates (using multilinear interpolation) intermediate images between neighboring MIS phases. We used this code to generate m images of size M × M , resulting in a matrix with size M × M × M (3D solid). Finally, we show the 3D solid of the SARS-CoV-2 viral particle as part of our results in several videos, subsequently rotated and filtered to identify the glicoprotein spike protein, membrane protein, envelope, and the hemagglutinin esterase. We show the algorithms in our proposal along with the main MATLAB functions such as FourierM and Results as well as the data required for the program execution in order to reproduce our results.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254487","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: 0
A super-resolution algorithm for the characterization of sweat glands in fingerprint OCT images 指纹OCT图像中汗腺特征的超分辨率算法
Journal of the Optical Society of America Pub Date : 2023-10-09 DOI: 10.1364/josaa.503212
Zhiyu Song, Yongping Lin, Liu Xiong, Zhifang Li
{"title":"A super-resolution algorithm for the characterization of sweat glands in fingerprint OCT images","authors":"Zhiyu Song, Yongping Lin, Liu Xiong, Zhifang Li","doi":"10.1364/josaa.503212","DOIUrl":"https://doi.org/10.1364/josaa.503212","url":null,"abstract":"Optical coherence tomography (OCT) is a noninvasive optical imaging technique that can be used to produce three-dimensional images of fingerprints. However, the low quality and poor resolution of the regions of interest (ROIs) in OCT images make it challenging to segment small tissues accurately. To address this issue, a super-resolution (SR) network called ESRNet has been developed to enhance the quality of OCT images, facilitating their applications in research. Firstly, the performance of the SR images produced by ESRNet is evaluated by comparing it to those generated by five other SR methods. Specifically, the SR performance is evaluated using three upscale factors (2×, 3×, and 4×) to assess the quality of the enhanced images. Based on the results obtained from the three datasets, it is evident that ESRNet outperforms current advanced networks in terms of SR performance. Furthermore, the segmentation accuracy of sweat glands has been significantly improved by the SR images. The number of sweat glands in the top view increased from 102 to 117, further substantiating the performance of the ESRNet network. The spiral structure of sweat glands is clear to human eyes and has been verified by showing similar left-right-handed spiral numbers. Finally, a sweat gland recognition method for the SR 3D images is proposed.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093196","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: 0
Global caustic and phase chirality reversal of the focused vortex beam 聚焦涡旋光束的全局焦性和相位手性反转
Journal of the Optical Society of America Pub Date : 2023-10-06 DOI: 10.1364/josaa.503536
Chaoxiang Wang, Ping Jiang, Yang Huajun, yan qin, Liu Jianing
{"title":"Global caustic and phase chirality reversal of the focused vortex beam","authors":"Chaoxiang Wang, Ping Jiang, Yang Huajun, yan qin, Liu Jianing","doi":"10.1364/josaa.503536","DOIUrl":"https://doi.org/10.1364/josaa.503536","url":null,"abstract":"We predict the reversal of the phase chirality before and after the focal plane during propagation based on ray tracing. The interference patterns of a focused vortex beam (FVB) and a plane beam during propagation verify the fact of phase chirality reversal through diffraction theoretical simulations and experiments. Also, we deduce an analytical expression for the caustic based on the ray equation, which effectively represents the change of the hollow light field during propagation. Simulation and experimental results demonstrate the effectiveness of the caustic in describing the variation of the global hollow dark spot radius. Furthermore, based on the caustic results at the focal plane, we customize FVBs with the same dark spot radii but different topological charges. Our research results reveal the characteristics of the light field and phase distribution of the FVB during propagation, which will expand our understanding of the properties of the FVB and provide a reference value for applications such as chiral particle manipulation and topological charge recognition.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135302609","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: 0
Research on the interactive perception of color paper-cutting culture rendering based on AR 基于AR的彩色剪纸文化渲染交互感知研究
Journal of the Optical Society of America Pub Date : 2023-10-04 DOI: 10.1364/josaa.491545
Yuchen Huang, Yulei Xu, Jiangping Yuan, Chaoyuan Zan, Kaida Xiao
{"title":"Research on the interactive perception of color paper-cutting culture rendering based on AR","authors":"Yuchen Huang, Yulei Xu, Jiangping Yuan, Chaoyuan Zan, Kaida Xiao","doi":"10.1364/josaa.491545","DOIUrl":"https://doi.org/10.1364/josaa.491545","url":null,"abstract":"To address the digital medium preference of the millennial generation, this study utilizes augmented reality (AR) technology for rendering color paper cuttings by developing a mobile terminal based on Unity 3D and 3ds Max to demonstrate digital works scanned by paper-cutting entities. Three subjective scaling experiments are conducted to evaluate the aesthetics, viewership, and impression of four genres of digital color paper cutting. The results show that observers have more preference for warm background with the maximum scaling value at the 7.5 mm/s playback speed and a specific superimposed order. Importantly, current experimental design and interactive evaluation provide a reference for AR display parameters.","PeriodicalId":17413,"journal":{"name":"Journal of the Optical Society of America","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135645061","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: 0
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