Updating a preoperative surface model with information from real-time tracked 2D ultrasound using a Poisson surface reconstruction algorithm

2014 ◽  
Author(s):  
Deyu Sun ◽  
Maryam E. Rettmann ◽  
David R. Holmes ◽  
Cristian A. Linte ◽  
Douglas Packer ◽  
...  
Keyword(s):  
Real Time ◽  
Surface Reconstruction ◽  
Reconstruction Algorithm ◽  
Surface Model ◽  
2D Ultrasound

scholarly journals Performance Analysis of Surface Reconstruction Algorithms in Vertical Scanning Interferometry Based on Coherence Envelope Detection

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 164
Author(s):  
Dongxu Wu ◽  
Fusheng Liang ◽  
Chengwei Kang ◽  
Fengzhou Fang
Keyword(s):  
Surface Reconstruction ◽  
Measurement Accuracy ◽  
Experimental Studies ◽  
Reconstruction Algorithm ◽  
Low Noise ◽  
Surface Measurement ◽  
Reconstruction Algorithms ◽  
Centroid Method ◽  
Envelope Detection ◽  
Vertical Scanning Interferometry

Optical interferometry plays an important role in the topographical surface measurement and characterization in precision/ultra-precision manufacturing. An appropriate surface reconstruction algorithm is essential in obtaining accurate topography information from the digitized interferograms. However, the performance of a surface reconstruction algorithm in interferometric measurements is influenced by environmental disturbances and system noise. This paper presents a comparative analysis of three algorithms commonly used for coherence envelope detection in vertical scanning interferometry, including the centroid method, fast Fourier transform (FFT), and Hilbert transform (HT). Numerical analysis and experimental studies were carried out to evaluate the performance of different envelope detection algorithms in terms of measurement accuracy, speed, and noise resistance. Step height standards were measured using a developed interferometer and the step profiles were reconstructed by different algorithms. The results show that the centroid method has a higher measurement speed than the FFT and HT methods, but it can only provide acceptable measurement accuracy at a low noise level. The FFT and HT methods outperform the centroid method in terms of noise immunity and measurement accuracy. Even if the FFT and HT methods provide similar measurement accuracy, the HT method has a superior measurement speed compared to the FFT method.

A Deformable Surface Model for Real-Time Water Drop Animation

2012 ◽  
Vol 18 (8) ◽  
pp. 1281-1289 ◽  
Author(s):  
Yizhong Zhang ◽  
Huamin Wang ◽  
Shuai Wang ◽  
Yiying Tong ◽  
Kun Zhou
Keyword(s):  
Real Time ◽  
Water Drop ◽  
Surface Model ◽  
Deformable Surface ◽  
Deformable Surface Model

A Phantom Study Comparing Ultrasound-Guided Liver Tumor Puncture Using New Real-Time 3D Ultrasound and Conventional 2D Ultrasound

2011 ◽  
Vol 196 (6) ◽  
pp. W753-W757 ◽  
Author(s):  
Katsutoshi Sugimoto ◽  
Fuminori Moriyasu ◽  
Junji Shiraishi ◽  
Masahiko Yamada ◽  
Yasuharu Imai
Keyword(s):  
Real Time ◽  
Liver Tumor ◽  
3D Ultrasound ◽  
Phantom Study ◽  
Ultrasound Guided ◽  
2D Ultrasound
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