Search Results - "RAY tracing algorithms"

Novel ray-tracing algorithms in NDE: Application of Dijkstra and A⁎ algorithms to the inspection of an anisotropic weld by Nowers, Oliver, Duxbury, David J., Zhang, Jie, Drinkwater, Bruce W.

“…The degradation of ultrasonic array images due to propagation through an anisotropic material presents a significant inspection problem to the engineering…”
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Ray Tracing Gems II: Next Generation Real-Time Rendering with DXR, Vulkan, and OptiX by Marrs, Adam, Shirley, Peter, Wald, Ingo

“…"The digital version of this book is available now for free – with the print version following very soon! This Open Access book is a must-have for anyone…”
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Ray tracing gems: high-quality and real-time rendering with DXR and other APIs by Haines, Eric, Möller, Tomas

“…This book is a must-have for anyone serious about rendering in real time. With the announcement of new ray tracing APIs and hardware to support them,…”
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Numerical implementation of generalized Coddington equations for ophthalmic lens design by Rojo, P., Royo, S., Ramírez, J., Madariaga, I.

“…A method for general implementation in any software platform of the generalized Coddington equations is presented, developed, and validated within a Matlab…”
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Fast iterative reconstruction for helical pinhole SPECT imaging by Huang, Po-Chia, Hsu, Ching-Han

“…Pinhole SPECT for small animal has become a routine procedure in many applications of molecular biology and pharmaceutical development. There is an increasing…”
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Deep Learning Aided Diffracting Sphere Radius Determination for Indoor Ray Tracing Algorithm by Xu, Ran, Shao, Yu, Li, Pan

“…To address the issue of significant power errors at the receiving end caused by uneven diffraction counts of multiple rays after diffraction, a neural network…”
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Optical design using excel: practical calculations for laser optical systems by Nakajima, Hiroshi

“…A practical introductory guide to optical design covering geometrical optics, simple wave-optics and diffraction, using Excel software• explains practical…”
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On the accuracy of the ray-tracing algorithms based on various sound receiver models by Xiangyang, Zeng, Ke'an, Chen, Jincai, Sun

“…In this paper, the effect of sound ray detection on the accuracy of sound field simulation by using the ray-tracing technique has been discussed. The current…”
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Efficient Ray Tracing For Mobile Devices by de Melo Aroxa, Rafael

“…The demand for mobile devices with higher graphics performance has increased substantially in the past few years. Most mobile applications that demand 3D…”
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Modeling of the Fiber-Optical Water Salinity Sensor by Khotiaintsev, S., Khotiaintsev, K., Garcia-Moreno, A.

“…We describe the mathematical model, the calculation algorithm, the computer program, and the user interface developed for numerical simulation of the optical…”
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Digital Optics Modeling Techniques by Kress, Bernard C, Meyrueis, Patrick

“…This chapter contains sections titled: <list style="bulleted" xml:id="l1"> Tools Based on Ray Tracing Scalar Diffraction Based Propagators Beam Propagation…”
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Physics of humping formation in laser powder bed fusion by Tang, C., Le, K.Q., Wong, C.H.

“…•Implementation of ray tracing heat source in the CFD model•Good consistency between simulations and experiments•Humping defects in samples fabricated at high…”
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An adaptive stratification algorithm for sound velocity profile based on NSGA-II multi-objective optimization by Cui, Xuerong, Zhou, Tongyu, Li, Juan, Ji, Meiqi, Li, Lei, Jiang, Bin, Li, Shibao, Liu, Jianhang

“…•Leveraging Fourier-based sound velocity gradient fitting, this study introduces an IWO-K-means algorithm where the IWO mechanism dynamically determines…”
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Investigation of the transient coupling between the dynamic laser beam absorptance and the melt pool - vapor depression morphology in laser powder bed fusion process by Aggarwal, Akash, Shin, Yung C., Kumar, Arvind

“…•High-fidelity ray-tracing model to study multiple reflections induced beam trapping.•Investigation of coupling between optical and thermo-hydrodynamical…”
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Unravelling keyhole instabilities and laser absorption dynamics during laser irradiation of Ti6Al4V: A high-fidelity thermo-fluidic study by Aggarwal, Akash, Shin, Yung C., Kumar, Arvind

“…•High-fidelity modeling to investigate melt pool dynamics and keyhole instabilities.•Investigation of keyhole closure mechanism and bubble trapping-ejection…”
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Optimization of ray tracing algorithm for Laser Radar Cross Section calculation based on material Bidirectional Reflection Distribution Function by Cao, Yisen, Cao, Yunhua, Li, Wenbo, Bai, Lu, Wu, Zhensen, Wang, Zhe

“…This paper studied the Laser Radar Cross Section (LRCS) of the target scale model by using the Bidirectional Reflection Distribution Function (BRDF) of…”
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Analyzing acoustic emission data to identify cracking modes in cement paste using an artificial neural network by Soltangharaei, V., Anay, R., Assi, L., Bayat, M., Rose, J.R., Ziehl, P.

“…•A new analysis procedure was developed to analyze and interpret AE data.•AE data driven from a compression test on a cement paste were classified.•An…”
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An adaptive stratification algorithm based on gradient fitting deviation and its application to acoustic ray-tracing algorithm by Liu, Yixu, Sun, Yongfu, Wang, Xiangxin, Tang, Jialing, Qi, Haibin, Zhang, Tongwei

“…Accurate underwater positioning is a challenging task for complex marine environments where the study of sound velocity profiles (SVPs) is essential. To…”
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Path planning for indoor Mobile robot based on deep learning by Zhang, Lin, Zhang, Yingjie, Li, Yangfan

“…This paper aims to give an optimal path planning of a mobile robot in a known indoor environment. An algorithm based on deep learning, ray tracing algorithm,…”
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Efficient Monte Carlo Particle Transport Simulation for Hybrid Geometries Using an Intrusive Approach by Shu, Hanlin, Cao, Liangzhi, He, Qingming

“…Unstructured mesh (UM) is regarded as an attractive alternative to constructive solid geometry (CSG) in Monte Carlo (MC) simulations due to its adaptability to…”
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