Search Results - "inverse compositional Gauss-Newton algorithm"

Noise robustness and parallel computation of the inverse compositional Gauss–Newton algorithm in digital image correlation by Shao, Xinxing, Dai, Xiangjun, He, Xiaoyuan

“…The inverse compositional Gauss–Newton (IC-GN) algorithm is one of the most popular sub-pixel registration algorithms in digital image correlation (DIC). The…”
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Interpolation bias for the inverse compositional Gauss–Newton algorithm in digital image correlation by Su, Yong, Zhang, Qingchuan, Xu, Xiaohai, Gao, Zeren, Wu, Shangquan

“…•The interpolation biases of FA-NR algorithm and IC-GN algorithm can be significantly different.•The reference image gradient estimation can strongly influence…”
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Experimental assessment of noise robustness of the forward-additive, symmetric-additive and the inverse-compositional Gauss-Newton algorithm in digital image correlation by Baldi, A., Santucci, P.M., Bertolino, F.

“…•Fully experimental assessment of noise-induced bias for Forward-Additive, Symmetric-Additive, and Inverse-Compositional formulation.•The influence of spatial…”
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An Evaluation of Convergence Criteria for Digital Image Correlation Using Inverse Compositional Gauss-Newton Algorithm by Pan, B.

“…ABSTRACT A fast, robust and accurate digital image correlation (DIC) method, which uses a robust zero‐mean normalized sum of squared difference correlation…”
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High-efficiency and high-accuracy digital image correlation for three-dimensional measurement by Gao, Yue, Cheng, Teng, Su, Yong, Xu, Xiaohai, Zhang, Yong, Zhang, Qingchuan

“… The inverse compositional Gauss–Newton algorithm (IC-GN2) with the second-order shape function is firstly proposed…”
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High accuracy digital image correlation powered by GPU-based parallel computing by Zhang, Lingqi, Wang, Tianyi, Jiang, Zhenyu, Kemao, Qian, Liu, Yiping, Liu, Zejia, Tang, Liqun, Dong, Shoubin

“…A sub-pixel digital image correlation (DIC) method with a path-independent displacement tracking strategy has been implemented on NVIDIA compute unified device…”
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Computer vision-based real-time deflection monitoring of complex and sizeable steel structures by Huang, Yongqi, Feng, Ruoqiang, Zhong, Changjun, Tong, Xiaoyu, Shao, Xinxing, Gu, Liuning, Hui, Ze

“…Deflection, as an intuitive index, plays a pivotal role in assessing the load-bearing capability and structural integrity of complex and sizable steel…”
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3-D strain estimation in sandstone using improved digital volumetric speckle photography algorithm by Mao, Lingtao, Liu, Haizhou, Wang, Yuwei, Ding, Leilei, Ju, Yang, Chiang, Fu-Pen

“… This study introduced the inverse compositional Gauss–Newton algorithm into DVSP to improve the accuracy and precision of displacement and strain measurements…”
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Performance of global look-up table strategy in digital image correlation with cubic B-spline interpolation and bicubic interpolation by Pan, Zhiwei, Chen, Wei, Jiang, Zhenyu, Tang, Liqun, Liu, Yiping, Liu, Zejia

“…Global look-up table strategy proposed recently has been proven to be an efficient method to accelerate the interpolation, which is the most time-consuming…”
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Digital Image Correlation with Enhanced Accuracy and Efficiency: A Comparison of Two Subpixel Registration Algorithms by Pan, B., Wang, B.

“…The two major subpixel registration algorithms, currently being used in subset-based digital image correlation, are the classic Newton-Raphson (FA-NR)…”
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Equal Noise Resistance of Two Mainstream Iterative Sub-pixel Registration Algorithms in Digital Image Correlation by Chen, W., Jiang, Z., Tang, L., Liu, Y., Liu, Z.

“…The inverse compositional Gauss-Newton (IC-GN) algorithm and the forward additive Newton-Raphson (FA-NR) algorithm are two mainstream iterative sub-pixel…”
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Comparative Analysis of Warp Function for Digital Image Correlation-Based Accurate Single-Shot 3D Shape Measurement by Yang, Xiao, Chen, Xiaobo, Xi, Juntong

“…Digital image correlation (DIC)-based stereo 3D shape measurement is a kind of single-shot method, which can achieve high precision and is robust to vibration…”
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GPU Accelerated Digital Volume Correlation by Wang, T., Jiang, Z., Kemao, Q., Lin, F., Soon, S. H.

“…A sub-voxel digital volume correlation (DVC) method combining the 3D inverse compositional Gauss-Newton (ICGN) algorithm with the 3D fast Fourier…”
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An Improved Digital Image Correlation Calculation in the Case of Substantial Lighting Variation by Simončič, S., Podržaj, P.

“…In the last decade, digital image correlation (DIC) has become the most widely used non-contact technique for measuring full-field motion and deformation in…”
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Visual Sensors by Reinoso Garcia, Oscar, Payá, Luis

“…Visual sensors are able to capture a large quantity of information from the environment around them. A wide variety of visual systems can be found, from the…”
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Optimized digital speckle patterns for digital image correlation by consideration of both accuracy and efficiency by Chen, Zhenning, Shao, Xinxing, Xu, Xiangyang, He, Xiaoyuan

“… The root-mean-square error of the inverse compositional Gauss-Newton algorithm and the average number of iterations were used as quality metrics…”
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Self-calibration single-lens 3D video extensometer for high-accuracy and real-time strain measurement by Shao, Xinxing, Eisa, Mohammed Mokhtar, Chen, Zhenning, Dong, Shuai, He, Xiaoyuan

“…The accuracy of strain measurement using a common optical extensometer with two-dimensional (2D) digital image correlation (DIC) is not sufficient for…”
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Algorithm Analysis and Optimization of a Digital Image Correlation Method Using a Non-Probability Interval Multidimensional Parallelepiped Model by Zhu, Xuedong, Liu, Jianhua, Ao, Xiaohui, Xia, Huanxiong, Huang, Sihan, Zhu, Lijian, Li, Xiaoqiang, Du, Changlin

“… Specifically, the method leverages the inverse compositional Gauss–Newton algorithm combined with a prediction-correction scheme (IC-GN-PC…”
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Real-time, non-contact and targetless measurement of vertical deflection of bridges using off-axis digital image correlation by Pan, Bing, Tian, Long, Song, Xiaolin

“… To achieve real-time displacement tracking with sub-pixel accuracy, an efficient inverse compositional Gauss…”
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Elimination of systematic error in digital image correlation caused by intensity interpolation by introducing position randomness to subset points by Su, Yong, Zhang, Qingchuan, Fang, Zheng, Wang, Yaru, Liu, Yang, Wu, Shangquan

“…•A random subset strategy was presented.•Random-subset-based subpixel registration algorithms were developed.•An increase in random offset will give rise to a…”
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