Variational depth from focus reconstruction

M Moeller, M Benning, C Schönlieb… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper deals with the problem of reconstructing a depth map from a sequence of
differently focused images, also known as depth from focus (DFF) or shape from focus. We …

3D shape reconstruction from multifocus image fusion using a multidirectional modified Laplacian operator

T Yan, Z Hu, Y Qian, Z Qiao, L Zhang - Pattern Recognition, 2020 - Elsevier
Multifocus image fusion techniques primarily emphasize human vision and machine
perception to evaluate an image, which often ignore depth information contained in the …

Shape-from-focus reconstruction using nonlocal matting Laplacian prior followed by MRF-based refinement

Z Ma, D Kim, YG Shin - Pattern Recognition, 2020 - Elsevier
In this paper, we address the problem of depth recovery from a sequence of multi-focus
images, known as shape-from-focus (SFF). The conventional SFF techniques typically …

A novel measurement method and application for grinding wheel surface topography based on shape from focus

J Tang, Z Qiu, T Li - Measurement, 2019 - Elsevier
The precision measurement of grinding wheel topography is of great significance for
accurate evaluating grinding performance and improving the workpiece surface finish and …

[HTML][HTML] Experimental measurement of wrinkle formation during draping of non-crimp fabric

SE Arnold, MPF Sutcliffe, WLA Oram - Composites Part A: Applied Science …, 2016 - Elsevier
A rig and image analysis methodology is described to characterise wrinkle formation during
draping of non-crimp fabrics. The circular fabric blank is draped over a male hemispherical …

Improved shape-from-focus reconstruction for high dynamic range freedom surface

Z He, P Zhou, J Zhu, J Zhang - Optics and Lasers in Engineering, 2023 - Elsevier
The 3D reconstruction of freedom surface has been a major challenge for computer vision
as well as metrology. Complex surface structures such as large undulations and deep …

A novel shape from focus method based on 3D steerable filters for improved performance on treating textureless region

T Fan, H Yu - Optics Communications, 2018 - Elsevier
A novel shape from focus method combining 3D steerable filter for improved performance on
treating textureless region was proposed in this paper. Different from conventional spatial …

A higher performance shape from focus strategy based on unsupervised deep learning for 3D shape reconstruction

H Dogan - Multimedia Tools and Applications, 2024 - Springer
Abstract Shape From Focus (SFF) is one of the most popular strategies for reconstructing
object's 3D shape, which doesn't require any additional technology. SFF strategies generate …

Edge Bleeding Artifact Reduction for Shape from Focus in Microscopic 3D Sensing

SH Park, GR Park, KR Baek - Sensors, 2023 - mdpi.com
Shape from focus enables microscopic 3D sensing by combining it with a microscope
system. However, edge bleeding artifacts of estimated depth easily occur in this …

A novel focus measure algorithm for three-dimensional microscopic vision measurement based on focus stacking

A Wu, R Lu, M Li - Sensors and Actuators A: Physical, 2024 - Elsevier
Abstract The three-dimensional (3D) microscopic vision measurement methods based on
focus stacking are widely used because of their outstanding advantages such as …