ZHANG Xueling |  LIU Bingcai... -  《AOPC 2024: Computational Imaging Technology》 -  Computational Imaging Technology (conference) - 2024, - 135010C.1～135010C.6 - 共6页

摘要：In order to solve the problem of phase information loss caused by non-uniform transmission of biological slices, we proposed a digital holographic measurement method based on wavelet fusion. We use a ...

关键词： Digital holographic microscopy |  Wavelet fusion |  Phase enhancement

Zhang Ruixuan |  Liu Bingcai... -  《Speckle 2023: VIII International Conference on Speckle Metrology: 18-20 October 2023.Xi an, China》 -  International Conference on Speckle Metrology - 2024, - 130700S.1～130700S.10 - 共10页

摘要：Phase measurement depth for traditional digital holographic Microscopy is limited by the depth of field of the Micro-objective. In order to expand the measurement range, an expanding depth of field of...

关键词： digital holography |  depth of field expansion |  point cloud splicing |  3D measurement

Ma Bei |  Kang Jinglu... -  《Advanced Optical Manufacturing Technologies and Applications 2024; and Fourth International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2024)》 -  Advanced Optical Manufacturing Technologies and Applications (conference) |  International Forum of Young Scientists on Advanced Optical Manufacturing - 2024, - 共8页

摘要：Graphite balls are essential in various industries, including casting, lubricating materials, refractory materials, batteries, and more. With expanding industrial applications, detecting surface defec...

关键词： Graphite ball |  High-strength ductile iron |  Surface defect detection |  YOLOv5 |  Deep convolutional neural network

Zhang Mengyao |  Tian ailing... -  《Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, Part 1: 8th Symposium on Novel Photoelectronic Detection Technology and Applications, 7–9 December 2021, Kunming, China》 -  Symposium on Novel Photoelectronic Detection Technology and Applications - 2022, - 121690Q.1～121690Q.6 - 共6页

摘要：In order to improve the surface shape detection accuracy of large-aperture planar optical elements, the paper studies the key parameters in the conjugate translation difference technology, and propose...

关键词： absolute measurement |  conjugate translation difference |  plane interference |  translation

NSTL主题词： Metering technology |  absolute measurement |  Conjugates

ZHU Yahui |  TIAN Ailing... -  《Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, Part 2: 8th Symposium on Novel Photoelectronic Detection Technology and Applications, 7–9 December 2021, Kunming, China》 -  Symposium on Novel Photoelectronic Detection Technology and Applications - 2022, - 121694A.1～121694A.7 - 共7页

摘要：Based on birefringence theory and polarization-synchronized phase-shifting lateral shearing interferometry technology, we proposed a compact and simple polarization phase-shifting lateral shearing int...

关键词： Lateral shearing interferometry |  synchronous phase-shifting |  PBD |  micro-polarizer array

NSTL主题词： shearography |  Phase shift |  interferometry |  Shearing |  Lateral

Liu Bingcai |  Qian Xiaotong... -  《Eighth Symposium on Novel Photoelectronic Detection Technology and Applications, Part 2: 8th Symposium on Novel Photoelectronic Detection Technology and Applications, 7–9 December 2021, Kunming, China》 -  Symposium on Novel Photoelectronic Detection Technology and Applications - 2022, - 1216946.1～1216946.7 - 共7页

摘要：To improve the stability and measurement accuracy of the phase-shift digital holographic measurement system, a gray-level encoded phase-shift digital holographic three-dimensional measurement technolo...

关键词： gray code |  phase shift digital holography |  phase reconstruction |  liquid crystal spatial light modulator |  three-dimensional measurement

NSTL主题词： Metering technology |  gray level |  Phase |  Phase shift |  Holography

Wang Hongjun |  Wei Chen... -  《10th International Symposium on Advanced Optical Manufacturing and Testing Technologies :》 -  International Symposium on Advanced Optical Manufacturing and Testing Technologies - 2021, - 120730N-1～120730N-8 - 共8页

摘要：To achieve rapid and accurate detection of the surface roughness of optical elements, a surface roughness detection method based on region scattering was proposed in this paper. Firstly, starting from...

关键词： Region Scattering |  optical elements |  surface roughness |  multi-exposure scattering image fusion

NSTL主题词： Optical Component |  inspection methods |  Surface roughness |  Scattering |  broadcasting

Liu Bingcai |  Niu Rui... -  《10th International Symposium on Advanced Optical Manufacturing and Testing Technologies :》 -  International Symposium on Advanced Optical Manufacturing and Testing Technologies - 2021, - 120710O-1～120710O-7 - 共7页

摘要：Digital holographic microscopy is an ideal non-invasive, non-contact, and fast-response 3D measurement method. The strong coherence of the laser leads to irregularly distributed speckle noise during t...

关键词： Digital holographic microscopy |  Speckle noise |  Diffusion glass rotation

NSTL主题词： Noise suppression |  speckle noise |  Holography |  Microscopy |  Glass |  Digit |  diffusion |  Digital

Liu Bingcai |  Tian Ailing... -  《9th International Symposium on Advanced Optical Manufacturing and Testing Technologies :》 -  International Symposium on Advanced Optical Manufacturing and Testing Technologies - 2019, - 108390S-1～108390S-7 - 共7页

摘要：Digital holographic microscopy is a new real-time 3D measurement technique, which is designed and installed by optical holography, microscopic imaging and optical information processing. Compared with...

关键词： Digital holographic Microscopy |  Instrumentation |  Design |  Experiments

Wang Hongjun |  Zhang Jiaying... -  《Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018) : Part one of two part /》 -  International Conference on Optical and Photonic Engineering - 2018, - 108270G-1～108270G-9 - 共9页

摘要：Since the coherent noise in the interferometric system, the method of rotated diffuser would reduce the coherence of the light beam to suppress the noise of the interference image. By analyzing the co...

关键词： system noise |  rotated diffuser |  Fizeau interferometer |  Noise contrast |  surface roughness

NSTL主题词： Analysis |  noise analysis |  Surface roughness |  images