Optical Review最新文献_第3页

Analysis of sensory tests for visibility of blur-added and color-changed virtual characters for AR display 对 AR 显示器中添加模糊和改变颜色的虚拟字符可见度的感官测试分析

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-28 DOI: 10.1007/s10043-024-00923-2

Yuta Machigashira, Haruki Mizushina, Kenji Yamamoto

引用次数: 0

Effects of three wavelength-cut lenses on visual function in the photopic and mesopic conditions 三种波长切割镜片对近视和中近视条件下视觉功能的影响

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-23 DOI: 10.1007/s10043-024-00924-1

Tatsuya Iizuka, Tomoya Handa

{"title":"Effects of three wavelength-cut lenses on visual function in the photopic and mesopic conditions","authors":"Tatsuya Iizuka, Tomoya Handa","doi":"10.1007/s10043-024-00924-1","DOIUrl":"10.1007/s10043-024-00924-1","url":null,"abstract":"<div><p>This study aimed to explore the impact of three wavelength-cut (TWC) lenses, which allowed 75% luminance transmittance while blocking wavelengths < 420 nm, approximately 460 nm, and approximately 585 nm, on visual function and color perception, and aging interaction effect. This single-center study enrolled 30 participants into two groups including 15 young participants (age 21.4 ± 1.3 years) and 15 older participants (age 71.7 ± 1.7 years). We used TWC lenses and a neutral density (ND) filter to assess the wavelength-cut effects on visual acuity, contrast sensitivity, and cone contrast sensitivity. Visual acuity and contrast sensitivity were assessed under photopic (luminance 85–100 cd/m<sup>2</sup>) and mesopic conditions (luminance 0.8 cd/m<sup>2</sup>). Significant interactions between age and lens conditions were observed for contrast sensitivity under photopic conditions (Bonferroni corrected α = 0.025, F<sub>(1,28)</sub> = 7.98, P = 0.01, η<sup>2</sup> = 0.003), suggesting that contrast sensitivity to white and black gratings is better with TWC lenses (75%) than with the ND filter in young participants (F<sub>(1,28)</sub> = 7.25, P = 0.01, η<sup>2</sup> = 0.206). However, the lens condition did not affect visual acuity and had only a minimal effect on cone contrast sensitivity for each cone type. In conclusion, TWC lenses, despite their nearly colorless and transparent appearance, can selectively block specific wavelengths to improve contrast sensitivity, while minimally affecting color perception. However, since the effect size of these interactions is very small, the impact is limited, therefore glasses should be prescribed with caution for young individuals.</p></div>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"31 Japan","pages":"694 - 701"},"PeriodicalIF":1.1,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142488514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Skew information and non-classical properties for semi squeezed states 半挤压态的偏斜信息和非经典特性

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-22 DOI: 10.1007/s10043-024-00918-z

A.-S. F. Obada, M. M. A. Ahmed, E. M. Khalil, S. Sanad

引用次数: 0

Mask-based lensless face recognition system with dual-prior face restoration 基于面具的无镜头人脸识别系统与双前置人脸修复功能

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-20 DOI: 10.1007/s10043-024-00915-2

Yeru Wang, Guowei Zhang, Xiyuan Jia, Yan Li, Qiuhua Wang, Zhen Zhang, Lifeng Yuan, Guohua Wu

{"title":"Mask-based lensless face recognition system with dual-prior face restoration","authors":"Yeru Wang, Guowei Zhang, Xiyuan Jia, Yan Li, Qiuhua Wang, Zhen Zhang, Lifeng Yuan, Guohua Wu","doi":"10.1007/s10043-024-00915-2","DOIUrl":"10.1007/s10043-024-00915-2","url":null,"abstract":"<div><p>Face recognition, a biometric technology that analyzes facial features to authenticate individuals’ identities, has various applications and implications across different fields. However, the advancement of technologies such as the Internet of Things has posed challenges for face recognition systems in terms of size, weight, cost, and privacy issues. In response to these challenges, some scholars have suggested a mask-based lensless face recognition system that captures facial images through a mask, eliminating the need for lenses. Nevertheless, the performance of lensless face recognition systems is limited by mask-based imaging, resulting in suboptimal results. To address this limitation, we propose a novel mask-based lensless face recognition system based on the Dual-Prior Face Restoration (DPFR) model. This model utilizes a dual-prior generator to create distinct facial priors that aid the Generative Adversarial Network (GAN) blocks in reconstructing both the global face structure and local face details. Extensive experiments have been carried out on the FlatCam Face Dataset (FCFD) captured using a lens camera and Flatcam lensless camera. The enhanced accuracy, precision, and True Accept Rate (TAR) performance metrics validate the effectiveness of the proposed mask-based lensless face recognition system.</p></div>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"31 Japan","pages":"633 - 643"},"PeriodicalIF":1.1,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142451427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Imaging distance of an aquatic image formed by an aquatic display obtained by paraxial approximation 通过旁轴近似法获得的由水生显示器形成的水生图像的成像距离

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-14 DOI: 10.1007/s10043-024-00916-1

Ryosuke Ichikawa, Hiroki Takatsuka, Toru Iwane, Shiro Suyama, Hirotsugu Yamamoto

引用次数: 0

Ai-enabled efficient modulation classification in underwater OWC systems 水下 OWC 系统中由人工智能支持的高效调制分类

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-14 DOI: 10.1007/s10043-024-00922-3

Qingwen He, Zhihong Zeng, Min Liu, Binbin Zhu, Bangjiang Lin, Chen Chen

{"title":"Ai-enabled efficient modulation classification in underwater OWC systems","authors":"Qingwen He, Zhihong Zeng, Min Liu, Binbin Zhu, Bangjiang Lin, Chen Chen","doi":"10.1007/s10043-024-00922-3","DOIUrl":"10.1007/s10043-024-00922-3","url":null,"abstract":"<div><p>In this paper, we propose and experimentally demonstrate an artificial intelligence (AI)-enabled efficient modulation classification technique for underwater optical wireless communication (UOWC) systems. Specifically, time-domain waveform histograms are adopted as classification features, where three modulation formats including direct current biased optical orthogonal frequency division multiplexing (DCO-OFDM), asymmetrically clipped optical OFDM (ACO-OFDM) and pulse amplitude modulation (PAM) are considered. Moreover, AI algorithms such as decision trees (DT), k-nearest neighbors (k-NN), support vector machines (SVM) and convolutional neural networks (CNN) are utilized to realize efficient modulation classification based on the obtained waveform histogram features. Experimental results demonstrate that all the four algorithms can achieve accuracy surpassing 95% when the received signal-to-noise ratio (SNR) exceeds 6.3 dB. Furthermore, increasing the number of symbols in histograms enhances classification accuracy, whereas altering the number of histogram bins has minimal impact on classification accuracy.</p></div>","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"31 Japan","pages":"688 - 693"},"PeriodicalIF":1.1,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142431456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the diffraction light field of two special beams through a cylindrical lens 关于通过圆柱透镜的两束特殊光束的衍射光场的研究

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-13 DOI: 10.1007/s10043-024-00921-4

Yanwu Zhou, Yuanfangzhou Wang, Licun Sun

引用次数: 0

Orthogonal polarization dual-wavelength Nd: GdVO4 laser at 1341 nm and 1344 nm with 880 nm LD direct pumping 1341 纳米和 1344 纳米正交偏振双波长 Nd：GdVO4 激光器，880 纳米 LD 直接泵浦

IF 1.1 4区物理与天体物理

Optical Review Pub Date : 2024-10-12 DOI: 10.1007/s10043-024-00919-y

Yichen Liu, Haifeng Lin, Mingzhan Liu, Ruizhen Mu, Feibing Xiong

引用次数: 0

Spatiotemporal-coupled partially coherent pulsed source and its propagation 时空耦合部分相干脉冲源及其传播