Prof. Lingbao Kong Profile

Prof. Lingbao Kong

at Fudan Univ

SPIE Involvement:

Author | Editor

Publications (23)

Proceedings Article | 29 December 2023 Paper

Depth-based defocus elimination for macroscopic Fourier ptychography imaging

Jiating An, Lingbao Kong

Proceedings Volume 12976, 1297612 (2023) https://doi.org/10.1117/12.3009043

KEYWORDS: Image restoration, Image resolution, Optical transfer functions, Imaging systems, Cameras, Reconstruction algorithms, Image processing, Fourier transforms, Image quality, Complex amplitude

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Proceedings Article | 29 December 2023 Paper

Design of a double-sided Fresnel lens for compact concentration photovoltaics systems

Ying Sun, Lingbao Kong

Proceedings Volume 12976, 1297611 (2023) https://doi.org/10.1117/12.3009042

KEYWORDS: Solar cells, Design and modelling, Solar concentrators, Photovoltaics, Refractive index, Receivers, Light sources and illumination, Lens design, Geometrical optics, Concentrated solar cells

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Proceedings Article | 29 December 2023 Paper

Spatial reconstruction from temporal light field: a new approach for optical 3D metrology

Xinlan Tang, Lingbao Kong

Proceedings Volume 12976, 1297610 (2023) https://doi.org/10.1117/12.3009041

KEYWORDS: Specular reflections, 3D modeling, Phase shift keying, Modulation, 3D metrology, Light sources, Reflection, Numerical simulations, Light sources and illumination, 3D projection

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Proceedings Article | 29 December 2023 Paper

Design of polyhedral microlens array of brittle materials based on meridional plane integral

Yuhan Wang, Lingbao Kong

Proceedings Volume 12976, 129760Y (2023) https://doi.org/10.1117/12.3009039

KEYWORDS: Design and modelling, Microlens array, Lenses, Reflection, Refractive index, Fabrication, Incident light, Zemax, Microlens, Manufacturing

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Proceedings Article | 29 December 2023 Paper

Discriminative recovery for extending depth-of-field of digital fringe projection

Huixin Song, Lingbao Kong

Proceedings Volume 12976, 129760Z (2023) https://doi.org/10.1117/12.3009040

KEYWORDS: Depth of field, Phase shift keying, Phase shifts, Modulation, Phase unwrapping, Projection systems, Fringe analysis, Covariance matrices, Cameras, Signal filtering

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Proceedings Article | 18 December 2023 Paper

Resolution enhancement for light field microscopic 3D imaging based on polarization and data fusion

Wenqi Shi, Lingbao Kong

Proceedings Volume 12967, 1296702 (2023) https://doi.org/10.1117/12.2692723

KEYWORDS: Polarization, Data fusion, Image resolution, 3D modeling, Stereoscopy, Resolution enhancement technologies, Spatial resolution, Microscopy, Point clouds, Imaging systems

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Light field microscopy (LFM) is an emerging three-dimensional (3D) imaging technology that simultaneously captures both spatial and angular information of the incident light by placing a micro lens array (MLA) in front of an imaging sensor, enabling computational reconstruction of the full 3D volume of a specimen via a single camera frame or single shot imaging. Unlike other 3D imaging techniques that acquire spatial information sequentially or through scanning, LFM four-dimensional (4D) imaging scheme effectively frees volume acquisition time from spatial scales and easy to miniaturize, thus making LFM a highly scalable tool in diverse applications. However, its broad application has slowed down due to the low resolution of the limited angular and spatial information in one snapshot of captured image, the inhomogeneous resolution of reconstructed depth images, and the lack of lateral shift invariance, which greatly degrades the spatial resolution, causing grid-like artifacts and great computational complexity. The introduction of Fourier light field microscopy (FLFM) provides a promising path to improve the current LFM techniques and achieve high-quality imaging and rapid light field reconstruction. However, the inherent trade-off between the angular and spatial resolution is still not fundamentally resolved without the introduction of additional information. Polarization, another dimension of light field information, has been shown to integrate well with other 3D imaging techniques to obtain finer 3D reconstructions results. Unfortunately, this aspect has seldom received attention and is ignored in LFM. This paper presents a resolution enhancement scheme for Fourier light field microscopy system that utilizes polarization norms and light field point cloud data fusion to generate improved imaging resolution and 3D reconstruction accuracy. Different from conventional FLFM, this approach actively introduces additional surface polarization information of the sample into the reconstruction of 3D volume information. A universal polarization-integrated FLFM configuration is designed and built up, allowing polarization and light field data to be acquired simultaneously using the same set of optical paths. A mathematical model is derived to describe the mapping and fusion of the polarization norms and light field point cloud data. Simulation studies show that the resolution and accuracy of the 3D reconstruction of the proposed FLFM imaging system are significantly improved after incorporating the polarization information, confirming the validity of the proposed methods. Finally, the implications of this approach for FLM are discussed, providing guidance for future experiments and applications. The resolution enhancement approach based on polarization and data fusion provides a feasible solution to the contradiction between lateral resolution and vertical resolution, and further improve the resolution of the FLFM imaging system.

Proceedings Article | 9 January 2023 Paper

Stereo matching with local cost volume refinement network

Mingzhu Wan, Lingbao Kong

Proceedings Volume 12507, 1250709 (2023) https://doi.org/10.1117/12.2653259

KEYWORDS: Feature extraction, Robotics, Machine vision, 3D metrology, Network architectures, Image resolution, Error analysis, Data modeling, Computer vision technology, 3D modeling, Structured light

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Proceedings Article | 15 February 2022 Paper

Design of an array collimating system based on VCSEL light source

Xiaohui Shen, Lingbao Kong

Proceedings Volume 12166, 1216671 (2022) https://doi.org/10.1117/12.2617914

KEYWORDS: Light sources, Collimation, Aspheric lenses, Vertical cavity surface emitting lasers, Lens design, LIDAR, Zemax, MATLAB, Freeform optics, Sensors

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Proceedings Article | 15 February 2022 Paper

Development of a fast binocular structured light measuring system using composite fringe projection

Huixing Song, Lingbao Kong, Huijun An, Guangxi Dong

Proceedings Volume 12166, 121666X (2022) https://doi.org/10.1117/12.2617907

KEYWORDS: Cameras, Projection systems, Fringe analysis, Calibration, 3D metrology, Composites, Structured light, Phase shifts, Phase shifting, Imaging systems

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Proceedings Article | 15 February 2022 Paper

Adaptive color extraction method for structured laser stripes

Huijun An, Lingbao Kong, Xing Peng, Huixing Song, Guangxi Dong

Proceedings Volume 12166, 1216670 (2022) https://doi.org/10.1117/12.2617912

KEYWORDS: RGB color model, Image segmentation, Structured light, Image processing, Image processing algorithms and systems, Laser damage threshold, Laser applications, Image filtering, Cameras, 3D image processing

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Proceedings Article | 15 February 2022 Paper

A study of ultra-precision raster milling of optical freeform surfaces

Renxian Zhou, Lingbao Kong

Proceedings Volume 12166, 121664O (2022) https://doi.org/10.1117/12.2617337

KEYWORDS: Surface finishing, Optics manufacturing, Freeform optics, Spherical lenses, Nose, Motion models, Spindles, Design for manufacturability

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Proceedings Article | 13 December 2021 Paper

An investigation of error compensation for a 6-DoF industrial robot based on neural network and stiffness modelling

Xuan Huang, Lingbao Kong, Min Xu

Proceedings Volume 12071, 120710U (2021) https://doi.org/10.1117/12.2604006

KEYWORDS: Neural networks, Neurons, Error analysis, Space robots, Data modeling, Motion models, Modeling, Manufacturing, Kinematics, Optics manufacturing

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Proceedings Article | 12 March 2021 Paper

Measurement and characterization of ultra-thin gaps in cylindrical assembling parts

Guangxi Dong, Lingbao Kong, Sijia Liu

Proceedings Volume 11763, 117633I (2021) https://doi.org/10.1117/12.2586573

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Proceedings Article | 5 November 2020 Paper

An investigation of data fusion for defects inspection in additive manufacturing

Xing Peng, Lingbao Kong

Proceedings Volume 11568, 115681V (2020) https://doi.org/10.1117/12.2580276

KEYWORDS: Image fusion, Infrared imaging, Infrared radiation, Visible radiation, Manufacturing, Additive manufacturing, Image processing, Thermography, Defect inspection

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Proceedings Article | 5 November 2020 Paper

Modeling and simulation of dynamic errors in a coordinate measuring machine with 3-DOF laser interferometer

Haoyu Lyu, Lingbao Kong

Proceedings Volume 11568, 115681L (2020) https://doi.org/10.1117/12.2580162

KEYWORDS: Interferometers, Monte Carlo methods, Environmental monitoring, Error analysis, Motion models, Refractive index, Humidity, Motion measurement, Reflectors

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Proceedings Article | 20 December 2019 Paper

Measurement and characterization of feature parameters for assembly parts based on blue structured light

Sijia Liu, Guangxi Dong, Lingbao Kong, Lizhe Qi

Proceedings Volume 11209, 112091B (2019) https://doi.org/10.1117/12.2543889

KEYWORDS: Structured light, 3D metrology, Reflectivity, Clouds, Metals, 3D modeling, Optical testing, Light, Projection systems, Computer aided design

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Proceedings Article | 20 December 2019 Paper

Design and finite element analysis of a vacuum chuck for weak rigid body parts

Guanyu Zhou, Wei Wang, Lingbao Kong, Min Xu

Proceedings Volume 11209, 112091A (2019) https://doi.org/10.1117/12.2543886

KEYWORDS: Adsorption, Finite element methods, Fluid dynamics, 3D modeling, Solids, Precision measurement, Optics manufacturing, Interferometers, Visual analytics, 3D visualizations

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Proceedings Article | 6 February 2019 Paper

A preliminary study of in-situ defects measurement for additive manufacturing based on multi-spectrum

Xing Peng, Lingbao Kong, Yao Chen, Junhua Wang, Min Xu

Proceedings Volume 10842, 1084217 (2019) https://doi.org/10.1117/12.2504800

KEYWORDS: Infrared imaging, Infrared radiation, Image fusion, Spatial light modulators, Additive manufacturing, Imaging systems, Visible radiation, Optics manufacturing, Mirrors, Modulation transfer functions

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Proceedings Article | 24 January 2019 Paper

Research and development of light field microscope for measuring 3D microstructures

Panyu Zhou, Junhua Wang, Lingbao Kong, Min Xu

Proceedings Volume 10840, 1084016 (2019) https://doi.org/10.1117/12.2504805

KEYWORDS: 3D microstructuring, 3D metrology, Microlens array, Imaging systems, Microscopes, Spatial resolution, Reconstruction algorithms, Charge-coupled devices, Objectives, 3D image reconstruction

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Proceedings Article | 24 January 2019 Paper

Research and design of functional microstructures with directional transport for bionic microfluidics

Lingbao Kong, Zhenzhen Xu, Min Xu

Proceedings Volume 10840, 1084015 (2019) https://doi.org/10.1117/12.2504802

KEYWORDS: Microfluidics, Liquids, Biomimetics, Capillaries, Computer aided design, Glasses, Interfaces, Natural surfaces, Optical microscopy, Structural design

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Proceedings Article | 12 December 2018 Paper

A measurement and separation method for perpendicular errors of rotary axes

Qing Zhou, Panyu Zhou, Min Xu, Lingbao Kong

Proceedings Volume 10847, 108470F (2018) https://doi.org/10.1117/12.2504664

KEYWORDS: Error analysis, Sensors, Confocal microscopy, Kinematics, Optics manufacturing, Interference (communication), Data centers, Physics, Precision measurement, Photovoltaics, Motion measurement, Data analysis

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Proceedings Article | 12 December 2018 Paper

Influence of motion modes on surface quality in CCOS

Jianwei Ji, Lingbao Kong, Wei Gao, Fang Ji, Junhua Wang, Min Xu, Haitao Zhang, Liping Wang

Proceedings Volume 10847, 108470E (2018) https://doi.org/10.1117/12.2504663

KEYWORDS: Polishing, Planets, Surface roughness, Surface finishing, Optics manufacturing, Particles, Glasses, Physics, Computer simulations, Motion analysis, Optimization (mathematics)

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Proceedings Article | 8 March 2017 Paper

Analysis and design of functional micro/nano structured surfaces

Zhenzhen Xu, Lingbao Kong, Min Xu

Proceedings Volume 10255, 102550V (2017) https://doi.org/10.1117/12.2268526

KEYWORDS: Solids, Head-mounted displays, Commercial off the shelf technology, Coating, Liquids, Silica, Particles, Composites, Biomimetics, Analytical research

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Showing 5 of 23 publications

Proceedings Volume Editor (2)

SPIE Conference Volume | 9 January 2023

Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022)

SPIE Conference Volume | 15 February 2022

Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021)

Conference Committee Involvement (6)

The 8th Asia Pacific Conference on Optics Manufacture & 3rd International Forum of Young Scientists on Advanced Optical Manufacturing

4 August 2023 | Shenzhen, China

Optical design and manufacturing

25 July 2023 | Beijing, China

Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022)

29 July 2022 | Changchun, China

Optics Ultra Precision Manufacturing and Testing

26 June 2022 | Beijing, China

Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021)

28 October 2021 | Hong Kong, Hong Kong

Showing 5 of 6 Conference Committees

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