Results 31 to 40 of about 176,543 (244)

Study on 3D shape and deformation measurement of a radiator fan based on high-speed binary defocused fringe projection

Mechanical Engineering Journal, 2016
The binary defocused fringe can overcome the nonlinear effect of an ordinary commercial digital projector and generate a good sinusoidal light field. In this paper, the binary fringe encoding method was chosen to complete the high-speed fringe projection
Qian XIONG, Lu CHEN, Qican ZHANG
doaj   +1 more source

Verification of Usability of Medical Image Data Using Projective Photography for Designing Clothing for Breast Cancer Patients

Tomography, 2022
Manufacturing a customized mastectomy bra, using medical images obtained for breast cancer treatment, could be suggested as an alternative instead of the anthropometric method.
Youn Joo Kim
doaj   +1 more source

Panoramic Digital Image Correlation for 360-Deg Full-Field Displacement Measurement

Applied Sciences, 2023
In full-field 3D displacement measurement, stereo digital image correlation (Stereo-DIC) has strong capabilities. However, as a result of difficulties with stereo camera calibration and surface merging, 360-deg panoramic displacement measurements remain ...
Yiran Li, Dong Zhao, Xueyi Ma, Jianzhong Zhang, Jian Zhao   +4 more
doaj   +1 more source

Measurement of 3D-line shaped objects

Pattern Recognition Letters, 1994
Summary: We present a software tool for the analysis of 3D-line shaped objects in a 3D grey valued image. We discuss the extraction of the object from the image, the measurement of its shape features and its display.
Worring, M., Pfluger, P.R., Houtsmuller, A., Smeulders, A.W.M.   +3 more
openaire   +5 more sources

Influence of projector pixel shape on ultrahigh-resolution 3D shape measurement

Optics Express, 2020
The state-of-art three-dimensional (3D) shape measurement with digital fringe projection (DFP) techniques assume that the influence of projector pixel shape is negligible. However, our research reveals that when the camera pixel size is much smaller than the projector pixel size in object space (e.g., 1/5), the shape of projector pixel can play a ...
Jae-Sang Hyun, Song Zhang
openaire   +2 more sources

3D-Shape Measurement of Parabolic Trough Mirror Panels:

SolarPACES Conference Proceedings
The 3D-shape round-robin initiative aims to compare the main geometric parameters of 3D shape measurements for parabolic-trough mirror panels, assessed using equipment developed and employed by each participating institution: ENEA, F-ISE, DLR, NREL, and ...
Marco Montecchi, Arcangelo Benedetti, Giuseppe Cara, Francisco Torres, Gregor Bern, Marc Röger, Kristina Blume, Tim Schlichting, Eckhard Lüpfert, Devon Kesseli, Guangdong Zhu, Braden Smith, Randy Brost   +12 more
doaj   +1 more source

Single-Shot Phase Measuring Profilometry Based on Quaternary Grating Projection

Applied Sciences, 2021
In this paper, we propose a new single-shot three-dimensional (3D) measuring method based on quaternary grating projection. In traditional binary grating phase measuring profilometry (PMP), a multi-step or color fringe pattern are usually used to extract
Chaozhi Yang, Yiping Cao, Xiuzhang Huang
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Development of underwater 3D shape measurement system with improved radiation tolerance

Nuclear Engineering and Technology, 2021
When performing remote tasks using robots in nuclear power plants, a 3D shape measurement system is advantageous in improving the efficiency of remote operations by easily identifying the current state of the target object for example, size, shape, and ...
Taewon Kim, Youngsoo Choi, Yun-ho Ko
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source