Optical Review最新文献_第2页

Three-dimensional surface structure reconstruction of reflective objects using multi-stage deep learning

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-16 DOI: 10.1007/s10043-024-00940-1

Wenguo Li, Yuyang Yan, Hongjun Lin, Zeqian Feng

{"title":"Three-dimensional surface structure reconstruction of reflective objects using multi-stage deep learning","authors":"Wenguo Li, Yuyang Yan, Hongjun Lin, Zeqian Feng","doi":"10.1007/s10043-024-00940-1","DOIUrl":"https://doi.org/10.1007/s10043-024-00940-1","url":null,"abstract":"With the development of deep learning and structured light streak projection techniques in three-dimensional (3D) imaging, research on the direct reconstruction of 3D shapes from single-streak images has attracted much attention. However, accurately reconstructing 3D shapes is particularly challenging when dealing with objects with specular reflective surfaces. To address this problem, this paper proposes an innovative multi-stage deep learning method that combines the pix2pix adversarial network and a modified version of the DC-HNet architecture. The technique aims to accurately reconstruct 3D shapes from streaked images by eliminating highlights in specular reflection regions through a staged process first. Specifically, the pix2pix adversarial network is first used to eliminate highlights and generate streak images without specular reflections; subsequently, the improved DC-HNet network is further processed to accurately deduce the phase distribution information of the object from the streak images with the elimination of highlights, and then reconstruct the 3D shape. Compared with the traditional self-encoder-based convolutional neural network (CNN) model, the multi-stage approach proposed in this paper significantly improves the accuracy of 3D shape reconstruction by separating the two key steps of highlight elimination and phase derivation and combining them with multi-scale feature enhancement. In this paper, the method’s effectiveness is verified on experimental data, and the results show that the proposed method provides a significant improvement in 3D shape prediction accuracy compared with the existing U-Net network and MultiResUet network. These findings not only demonstrate the innovation and robustness of the proposed method but also show its potential in scientific research and engineering applications.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"80 1 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427311","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

Novel hexagonal form factor of chromaticity distribution of color speckle 色彩斑点色度分布的新六边形系数

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-14 DOI: 10.1007/s10043-024-00936-x

Junichi Kinoshita, Kazuo Kuroda, Kazuhisa Yamamoto

引用次数: 0

Image distortion correction based on partial polynomial model for a large-array photon-counting detector

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-13 DOI: 10.1007/s10043-025-00944-5

Yue Li, Lizhi Sheng, Yong’an Liu, Ruili Zhang, Xianghui Yang, Zhe Liu, Yalong Zhang

引用次数: 0

Perceived rotation angle and depth position of face-like illustrations with inverted concave depth positions in arc 3D display

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-12 DOI: 10.1007/s10043-025-00951-6

Kensuke Tamano, Shiro Suyama, Hirotsugu Yamamoto

{"title":"Perceived rotation angle and depth position of face-like illustrations with inverted concave depth positions in arc 3D display","authors":"Kensuke Tamano, Shiro Suyama, Hirotsugu Yamamoto","doi":"10.1007/s10043-025-00951-6","DOIUrl":"https://doi.org/10.1007/s10043-025-00951-6","url":null,"abstract":"3D displays sometimes evoke illusion of perceived rotation angle change. In hollow face illusion, the direction of the 3D face changes according to the observation angle although the 3D face itself is static. Arc 3D display can show simple 3D image that is visible over a wide viewing angle by use of a thin substrate and illumination light. This structure is suitable for various applications such as digital signage or entertainments with illusion. If rotational perception like hollow face illusion would be obtained by simple aerial images like simple illustrations, application zone could be expanded to various field, such as animation or marks. To investigate the addition of rotation perception in 3D image with arc 3D display, we study perceived rotation angle of face-like illustration with inverted concave depth. In this paper, we quantitatively investigate the perceived rotation angle of the face image due to changing observation position and perceived depth position of face-like parts. The perceived rotation of the face image illustration can be achieved although the perceived depth of the face-like parts has various values by subject.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"18 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143392956","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

An ultra-broadband polarization filter and a stable temperature sensor based on a square-lattice gold-coated PCF with a different material-infiltrated core

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-10 DOI: 10.1007/s10043-024-00934-z

Linghong Jiang, Jing Dai, Chao Wang, Shi Qiu, Wei Wang, Lantian Hou

{"title":"An ultra-broadband polarization filter and a stable temperature sensor based on a square-lattice gold-coated PCF with a different material-infiltrated core","authors":"Linghong Jiang, Jing Dai, Chao Wang, Shi Qiu, Wei Wang, Lantian Hou","doi":"10.1007/s10043-024-00934-z","DOIUrl":"https://doi.org/10.1007/s10043-024-00934-z","url":null,"abstract":"A simple photonic crystal fiber (PCF) arranged in a square geometry with two gold-coated air holes and one material-infiltrated core is proposed. A broadband polarization filter and a temperature sensor can be achieved based on the same simple PCF structure, with a hollow core separately filled with liquid crystal and toluene. The polarization filtering and sensing properties of the proposed PCF were studied using the finite element method (FEM). Numerically results show that variations in the diameter of both the liquid crystal-infiltrated central hole and the cladding air holes have a slight effect on the polarization filter characteristics. The polarization filter can be effectively tuned in terms of the central wavelength, crosstalk, and bandwidth by adjusting the thickness of the gold film. The proposed PCF polarization filter with t = 22.5 nm has achieved a wide bandwidth of 1850 nm across wavelengths ranging from 1.2 to 3.05 μm for a fiber length of 50 μm, achieving a high value of polarization loss ratio (PLR) of 28,717 at λ = 1.31 μm with losses of 1723 dB/cm for y-polarization and 0.06 dB/cm for x-polarization. The y-polarized core mode in this design with t = 10 nm is rapidly attenuated, experiencing losses larger than 1340 dB/cm over wavelengths ranging from 1.9 to 3.0 μm; it also exhibits a bandwidth of 2200 nm with crosstalk greater than 20 dB when using a fiber length of 50 μm at wavelengths above 1.5 μm. Furthermore, a temperature sensor that utilizes toluene as its core material exhibits a consistent average sensitivity of 6.68 nm/°C for y-polarization and can detect temperatures ranging from − 10 to 40 °C. The sensor maintains stable sensitivity within ± 1% fluctuation of the gold film thickness in the sensing range of − 10 to 40 °C.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"62 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375148","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

Truncated cylindrical array plate for mid-air imaging

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-05 DOI: 10.1007/s10043-025-00948-1

Junpei Sano, Naoya Koizumi

{"title":"Truncated cylindrical array plate for mid-air imaging","authors":"Junpei Sano, Naoya Koizumi","doi":"10.1007/s10043-025-00948-1","DOIUrl":"https://doi.org/10.1007/s10043-025-00948-1","url":null,"abstract":"Mid-air imaging, a visual display technology for augmented reality (AR) that enables multiple people to view images simultaneously without the need for special eyewear, involves the formation of real images in mid-air through various optical elements. This paper presents a novel mid-air imaging optical plate, termed the truncated cylindrical array plate (TCAP). TCAP is composed of transparent cylinders with obliquely truncated ends and mirrors, specifically designed to address issues such as stray light and limited viewing angles in existing mid-air imaging optical elements. We evaluated TCAP through computer simulations and by fabricating a prototype optical element. Ray tracing simulations and stereo matching algorithms demonstrated that mid-air images are symmetrically formed on the side opposite of the light source relative to the TCAP. Furthermore, the simulations indicated that a bright, stray-light-free mid-air image could be achieved within a horizontal viewing angle of approximately (pm , 40 ^circ ). Experimental evaluation using a handcrafted prototype further confirmed the plane symmetry of mid-air image formation, validating its functionality as a mid-air imaging element. The proposed method is advantageous in systems where stray light is problematic, such as mid-air image interaction systems or optical systems utilizing mid-air imaging elements.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"9 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143192364","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

BaTiO3/Si-hybrid slot-waveguide electro-optic modulator

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-04 DOI: 10.1007/s10043-025-00950-7

Thomas M. Mercier, Isao Tomita, Martin D. B. Charlton

引用次数: 0

Achieving higher spatial resolution in complex amplitude modulation using a pixel shift-based dual-phase modulation method

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-02-03 DOI: 10.1007/s10043-025-00949-0

Jianglian Wang, Atsushi Okamoto, Yuta Goto, Akihisa Tomita

{"title":"Achieving higher spatial resolution in complex amplitude modulation using a pixel shift-based dual-phase modulation method","authors":"Jianglian Wang, Atsushi Okamoto, Yuta Goto, Akihisa Tomita","doi":"10.1007/s10043-025-00949-0","DOIUrl":"https://doi.org/10.1007/s10043-025-00949-0","url":null,"abstract":"This paper proposes a novel pixel shift-based dual-phase modulation method (PS-DPMM) designed to enhance the spatial resolution of complex amplitude modulations. Conventional techniques, including off-axis computer-generated holograms (CGH), double-phase holograms (DPH), and kinoforms, often encounter issues like low diffraction efficiency, limited spatial resolution, and high speckle noise. Although the dual-phase modulation method (DPMM), which employs two spatial light modulators (SLMs), achieves high diffraction efficiency, its spatial resolution is constrained by the intrinsic pixel size and resolution of the SLM. To overcome this limitation, we propose the PS-DPMM, an extension of the DPMM that introduces a 1/2-pixel shift between two SLMs. Although this sacrifices a portion of the modulation performance, it effectively improves the spatial resolution of complex amplitude modulation by nearly doubling. Through numerical simulations and experimental validation, we demonstrate that the PS-DPMM attains almost twice the spatial resolution of conventional methods while maintaining a relatively high-quality modulation. This approach provides a promising solution for advancing high-spatial-resolution SLM-based complex amplitude modulation with potential applications in holographic displays, fiber-optic systems, and other fields requiring high spatial resolution wavefront control.","PeriodicalId":722,"journal":{"name":"Optical Review","volume":"25 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077580","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

Numerical simulations of optimized MSD multiplication on ternary optical computer

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-01-27 DOI: 10.1007/s10043-025-00947-2

Mei Li, Shu Chun Qu

引用次数: 0

Super-resolution human-silhouette imaging by joint optimization of coded illumination and reconstruction network: a simulation study

IF 1.2 4区物理与天体物理

Optical Review Pub Date : 2025-01-24 DOI: 10.1007/s10043-025-00946-3

Shunsuke Sakoda, Tomoya Nakamura, Yasushi Yagi

引用次数: 0