activity
20202022
most citedNondestructive thermographic detection of internal defects using pixel-pattern based laser excitation and photothermal super resolution reconstruction

27 citations · 54 across the 4 of their papers we have counts for

collaborators

5 papers

eess.IV2022★ 27 cited

Nondestructive thermographic detection of internal defects using pixel-pattern based laser excitation and photothermal super resolution reconstruction

Julien Lecompagnon, Philipp Daniel Hirsch, Christian Rupprecht +1

In this work, we present a novel approach to photothermal super resolution based thermographic resolution of internal defects using two-dimensional pixel pattern-based active photo…

cs.CV2021

Photothermal-SR-Net: A Customized Deep Unfolding Neural Network for Photothermal Super Resolution Imaging

Samim Ahmadi, Linh Kästner, Jan Christian Hauffen +2

This paper presents deep unfolding neural networks to handle inverse problems in photothermal radiometry enabling super resolution (SR) imaging. Photothermal imaging is a well-know…

cs.CV2020★ 3 cited

Learned Block Iterative Shrinkage Thresholding Algorithm for Photothermal Super Resolution Imaging

Samim Ahmadi, Jan Christian Hauffen, Linh Kästner +3

Block-sparse regularization is already well-known in active thermal imaging and is used for multiple measurement based inverse problems. The main bottleneck of this method is the c…

cs.CV2020

Classification of Spot-welded Joints in Laser Thermography Data using Convolutional Neural Networks

Linh Kästner, Samim Ahmadi, Florian Jonietz +4

Spot welding is a crucial process step in various industries. However, classification of spot welding quality is still a tedious process due to the complexity and sensitivity of th…

physics.app-ph2020★ 24 cited

Laser excited super resolution thermal imaging for nondestructive inspection of internal defects

Samim Ahmadi, Julien Lecompagnon, Philipp Daniel Hirsch +4

A photothermal super resolution technique is proposed for an improved inspection of internal defects. To evaluate the potential of the laser-based thermographic technique, an addit…