Relevant bibliographies by topics / Image Based Ambient Occlusion

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  2. Dissertations / Theses
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Academic literature on the topic 'Image Based Ambient Occlusion'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 February 2022

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Journal articles on the topic "Image Based Ambient Occlusion"

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Sajko, Robert, and Zeljka Mihajlovic. "Fast Image-Based Ambient Occlusion IBAO." International Journal of Virtual Reality 10, no. 4 (2011): 61–65. http://dx.doi.org/10.20870/ijvr.2011.10.4.2830.

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The quality of computer rendering and perception of realism greatly depend on the shading method used to implement the interaction of light with the surfaces of objects in a scene. Ambient occlusion (AO) enhances the realistic impression of rendered objects and scenes. Properties that make Screen Space Ambient Occlusion (SSAO) interesting for real-time graphics are scene complexity independence, and support for fully dynamic scenes. However, there are also important issues with current approaches: poor texture cache use, introduction of noise, and performance swings. In this paper, a straightf
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Zhao, Yuqing, Guangyuan Fu, Hongqiao Wang, and Shaolei Zhang. "The Fusion of Unmatched Infrared and Visible Images Based on Generative Adversarial Networks." Mathematical Problems in Engineering 2020 (March 20, 2020): 1–12. http://dx.doi.org/10.1155/2020/3739040.

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Visible images contain clear texture information and high spatial resolution but are unreliable under nighttime or ambient occlusion conditions. Infrared images can display target thermal radiation information under day, night, alternative weather, and ambient occlusion conditions. However, infrared images often lack good contour and texture information. Therefore, an increasing number of researchers are fusing visible and infrared images to obtain more information from them, which requires two completely matched images. However, it is difficult to obtain perfectly matched visible and infrared
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Feng, Yan. "Some Research on the Fusion of Virtual Scene and Video Image." Applied Mechanics and Materials 58-60 (June 2011): 1–6. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1.

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Fusing three-dimensional virtual scene and video image into a perfect whole, is a key technology in augmented reality, which includes a number of problems need to be resolved. This paper makes some researches on the occlusion and consistent illumination between virtual and real objects. About occlusion, an approach for realizing multilayer occlusion is presented. A special scene graph tree is designed comprised of some special nodes, namely EMO nodes. According to the location of real moving object, different EMO node will be activated in real-time, consequently realizing the multilayer occlus
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Pham, Tuan-Anh, and Myungsik Yoo. "Nighttime Vehicle Detection and Tracking with Occlusion Handling by Pairing Headlights and Taillights." Applied Sciences 10, no. 11 (2020): 3986. http://dx.doi.org/10.3390/app10113986.

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In recent years, vision-based vehicle detection has received considerable attention in the literature. Depending on the ambient illuminance, vehicle detection methods are classified as daytime and nighttime detection methods. In this paper, we propose a nighttime vehicle detection and tracking method with occlusion handling based on vehicle lights. First, bright blobs that may be vehicle lights are segmented in the captured image. Then, a machine learning-based method is proposed to classify whether the bright blobs are headlights, taillights, or other illuminant objects. Subsequently, the det
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Won, Jongbin, Jong-Woong Park, Kyoohong Park, Hyungchul Yoon, and Do-Soo Moon. "Non-Target Structural Displacement Measurement Using Reference Frame-Based Deepflow." Sensors 19, no. 13 (2019): 2992. http://dx.doi.org/10.3390/s19132992.

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Displacement is crucial for structural health monitoring, although it is very challenging to measure under field conditions. Most existing displacement measurement methods are costly, labor-intensive, and insufficiently accurate for measuring small dynamic displacements. Computer vision (CV)-based methods incorporate optical devices with advanced image processing algorithms to accurately, cost-effectively, and remotely measure structural displacement with easy installation. However, non-target-based CV methods are still limited by insufficient feature points, incorrect feature point detection,
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Lin, D., M. Jarzabek-Rychard, D. Schneider, and H. G. Maas. "THERMAL TEXTURE SELECTION AND CORRECTION FOR BUILDING FACADE INSPECTION BASED ON THERMAL RADIANT CHARACTERISTICS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2 (May 30, 2018): 585–91. http://dx.doi.org/10.5194/isprs-archives-xlii-2-585-2018.

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An automatic building façade thermal texture mapping approach, using uncooled thermal camera data, is proposed in this paper. First, a shutter-less radiometric thermal camera calibration method is implemented to remove the large offset deviations caused by changing ambient environment. Then, a 3D façade model is generated from a RGB image sequence using structure-from-motion (SfM) techniques. Subsequently, for each triangle in the 3D model, the optimal texture is selected by taking into consideration local image scale, object incident angle, image viewing angle as well as occlusions. Afterward
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Ege, Yannic C., Christian Foth, Daniel Baum, Christian S. Wirkner, and Stefan Richter. "Adapting spherical-harmonics-based geometric morphometrics (SPHARM) for 3D images containing large cavity openings using ambient occlusion: a study with hermit crab claw shape variability." Zoomorphology 139, no. 3 (2020): 421–32. http://dx.doi.org/10.1007/s00435-020-00488-z.

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González, Francisco, Mateu Sbert, and Miquel Feixas. "Viewpoint-Based Ambient Occlusion." IEEE Computer Graphics and Applications 28, no. 2 (2008): 44–51. http://dx.doi.org/10.1109/mcg.2008.41.

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Hauagge, Daniel, Scott Wehrwein, Kavita Bala, and Noah Snavely. "Photometric Ambient Occlusion for Intrinsic Image Decomposition." IEEE Transactions on Pattern Analysis and Machine Intelligence 38, no. 4 (2016): 639–51. http://dx.doi.org/10.1109/tpami.2015.2453959.

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Papaioannou, Georgios, Maria Lida Menexi, and Charilaos Papadopoulos. "Real-Time Volume-Based Ambient Occlusion." IEEE Transactions on Visualization and Computer Graphics 16, no. 5 (2010): 752–62. http://dx.doi.org/10.1109/tvcg.2010.18.

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Dissertations / Theses on the topic "Image Based Ambient Occlusion"

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Dikman, David. "Ambient Occlusion i Realtid." Thesis, University of Skövde, School of Humanities and Informatics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-1109.

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<p>Ambient Occlusion är en teknik för ambient ljussättning i digitala tredimensionella scener. Sådana scener ljussätts vanligtvis med en konstant mängd ambient ljus på samtliga ytor oberoende av ytornas vinkel och position gentemot olika ljuskällor i scenen. Detta ger ett platt och kalt intryck och utan vidare ljussättningstekniker är det ytterst svårt att urskönja detaljer i scenen. Ambient Occlusion åthjälper detta genom att reducera mängden ambient ljus i vissa delar av scenen. Ambient ljus är en enkel approximation av det reflekterade diffusa ljuset som antas nå nästan överallt i scenen. G
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Guo, Jun. "Further development of shaders for realistic materials and global illumination effects." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-76769.

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Shader programming is important for realistic material and global illumination real-time rendering, especially in 3D industrial fields nowadays, more and more customers of Visual Components Oy, a Finnish 3D software company have been found to be no longer only content with the correct simulation result, but also the result of realistic real-time rendering. This thesis project will provide a deep research on real world material classification, property definition and global illumination techniques in industrial fields. On the other hand, the Shader program for different materials and global ill
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Waldner, Fabian. "Real-time Ray Traced Ambient Occlusion and Animation : Image quality and performance of hardware- accelerated ray traced ambient occlusion." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298085.

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Recently, new hardware capabilities in GPUs has opened the possibility of ray tracing in real-time at interactive framerates. These new capabilities can be used for a range of ray tracing techniques - the focus of this thesis is on ray traced ambient occlusion (RTAO). This thesis evaluates real-time ray RTAO by comparing it with ground- truth ambient occlusion (GTAO), a state-of-the-art screen space ambient occlusion (SSAO) method. A contribution by this thesis is that the evaluation is made in scenarios that includes animated objects, both rigid-body animations and skinning animations. This a
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Drastil, Petr. "Simulace a vizualizace vodního toku." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2012. http://www.nusl.cz/ntk/nusl-236494.

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This work deals with design and implementation of simple demonstration aplication for simulation of a water flow on irregular terrain. The work examines essential building blocks of the simulation. It also suggests approaches that can be used to optimize and/or extend used method.
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Bricola, Jean-Charles. "Estimation de cartes de profondeur à partir d’images stéréo et morphologie mathématique." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM046/document.

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Cette thèse propose de nouvelles approches pour le calcul de cartes de profondeur associées à deux images stéréoscopiques.La difficulté du problème réside dans l'établissement de mises en correspondances entre les deux images stéréoscopiques. Cet établissement s'avère en effet incertain dans les zones de l'image qui sont homogènes, voire impossible en cas d'occultation.Afin de gérer ces deux problèmes, nos méthodes procèdent en deux étapes. Tout d'abord nous cherchons des mesures de profondeur fiables en comparant les deux images stéréoscopiques à l'aide de leurs segmentations associées. L'ana
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"Evaluating Tessellation and Screen-Space Ambient Occlusion in WebGL-Based Real-Time Application." Master's thesis, 2017. http://hdl.handle.net/2286/R.I.43915.

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abstract: Tessellation and Screen-Space Ambient Occlusion are algorithms which have been widely-used in real-time rendering in the past decade. They aim to enhance the details of the mesh, cast better shadow effects and improve the quality of the rendered images in real time. WebGL is a web-based graphics library derived from OpenGL ES used for rendering in web applications. It is relatively new and has been rapidly evolving, this has resulted in it supporting a subset of rendering features normally supported by desktop applications. In this thesis, the research is focusing on evaluating Curve
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Zhao, Yangyang. "Hessian-based occlusion-aware radiance caching." Thèse, 2014. http://hdl.handle.net/1866/11503.

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Simuler efficacement l'éclairage global est l'un des problèmes ouverts les plus importants en infographie. Calculer avec précision les effets de l'éclairage indirect, causés par des rebonds secondaires de la lumière sur des surfaces d'une scène 3D, est généralement un processus coûteux et souvent résolu en utilisant des algorithmes tels que le path tracing ou photon mapping. Ces techniquesrésolvent numériquement l'équation du rendu en utilisant un lancer de rayons Monte Carlo. Ward et al. ont proposé une technique nommée irradiance caching afin d'accélérer les techniques précédentes lors du
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Staib, Joachim. "Focus and Context Methods for Particle-Based Data." Doctoral thesis, 2018. https://tud.qucosa.de/id/qucosa%3A33208.

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Particle-based models play a central role in many simulation techniques used for example in thermodynamics, molecular biology, material sciences, or astrophysics. Such simulations are carried out by directly calculating interactions on a set of individual particles over many time steps. Clusters of particles form higher-order structures like drops or waves. The interactive visual inspection of particle datasets allows gaining in-depth insight, especially for initial exploration tasks. However, their visualization is challenging in many ways. Visualizations are required to convey structures an
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(6916283), Meng-Lin Wu. "Occlusion Management in Conventional and Head-Mounted Display Visualization through the Relaxation of the Single Viewpoint/Timepoint Constraint." Thesis, 2019.

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<div>In conventional computer graphics and visualization, images are synthesized following the planar pinhole camera (PPC) model. The PPC approximates physical imaging devices such as cameras and the human eye, which sample the scene with linear rays that originate from a single viewpoint, i.e. the pinhole. In addition, the PPC takes a snapshot of the scene, sampling it at a single instant in time, or timepoint, for each image. Images synthesized with these single viewpoint and single timepoint constraints are familiar to the user, as they emulate images captured with cameras or perceived by t
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Books on the topic "Image Based Ambient Occlusion"

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Hein, Elisabeth. The Ternus Effect. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780199794607.003.0099.

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The Ternus effect refers to an ambiguous apparent motion display in which two or three elements presented in succession and shifted horizontally by one position can be perceived as either a group of elements moving together or as one element jumping across the other(s). This chapter introduces the phenomenon and describes observations made by Pikler and Ternus in the beginning of the twentieth century. Next, reasons for continued interest in the Ternus effect are discussed and an overview of factors that influence it offered, including low-level image-based factors, for example luminance, as w
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Book chapters on the topic "Image Based Ambient Occlusion"

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Aldrian, Oswald, and William A. P. Smith. "Model-Based Ambient Occlusion for Inverse Rendering." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31295-3_40.

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Pizzati, Fabio, Pietro Cerri, and Raoul de Charette. "Model-Based Occlusion Disentanglement for Image-to-Image Translation." In Computer Vision – ECCV 2020. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58565-5_27.

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Hasnine, Mohammad Nehal, Brendan Flanagan, Gokhan Akcapinar, Hiroaki Ogata, Kousuke Mouri, and Noriko Uosaki. "Vocabulary Learning Support System Based on Automatic Image Captioning Technology." In Distributed, Ambient and Pervasive Interactions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21935-2_26.

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Romero, Elena, Álvaro Araujo, José M. Moya, et al. "Image Processing Based Services for Ambient Assistant Scenarios." In Distributed Computing, Artificial Intelligence, Bioinformatics, Soft Computing, and Ambient Assisted Living. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02481-8_121.

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Scarpa, Dario, and Ugo Erra. "Solid Angle Based Ambient Obscurance in Image Space." In Lecture Notes in Computer Science. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-60928-7_31.

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Zhou, Yan, Bo Hu, and Jianqiu Zhang. "Occlusion Detection and Tracking Method Based on Bayesian Decision Theory." In Advances in Image and Video Technology. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11949534_47.

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Borjas, Víctor, Michal Drozdzal, Petia Radeva, and Jordi Vitrià. "Human Relative Position Detection Based on Mutual Occlusion." In Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33275-3_41.

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Huang, Chen, Keren Xie, Yuhan Zhang, Mingchao Li, Zhongmin Wang, and Qiang Chen. "Adaptive Dictionary Learning Based Multimodal Branch Retinal Vein Occlusion Fusion." In Medical Image Computing and Computer Assisted Intervention – MICCAI 2020. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59722-1_58.

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Struwe, Marvin, Stephan Hasler, and Ute Bauer-Wersing. "Rendered Benchmark Data Set for Evaluation of Occlusion-Handling Strategies of a Parts-Based Car Detector." In Image and Video Technology. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29451-3_9.

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Pujol, Francisco A., Higinio Mora, Antonio Jimeno, and José Luis Sánchez. "Colour Image Compression Based on the Embedded Zerotree Wavelet." In Distributed Computing, Artificial Intelligence, Bioinformatics, Soft Computing, and Ambient Assisted Living. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02481-8_89.

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Conference papers on the topic "Image Based Ambient Occlusion"

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Bavoil, Louis, Miguel Sainz, and Rouslan Dimitrov. "Image-space horizon-based ambient occlusion." In ACM SIGGRAPH 2008 talks. ACM Press, 2008. http://dx.doi.org/10.1145/1401032.1401061.

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LIN, Cheng, Yinwei ZHAN, Zhuo YANG, Jujian LV, Qieshi ZHANG, and Wenxin YU. "Accelerated Detail-Enhanced Ambient Occlusion." In 2019 IEEE International Conference on Image Processing (ICIP). IEEE, 2019. http://dx.doi.org/10.1109/icip.2019.8803809.

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Song, Yunpeng, Fang Liu, and James Xu. "Horizon-based screen-space ambient occlusion using mixture sampling." In ACM SIGGRAPH ASIA 2010 Posters. ACM Press, 2010. http://dx.doi.org/10.1145/1900354.1900410.

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Maharjan, Rahul Singh, Nizam Ud Din, and Juneho Yi. "Image-to-image translation based face de-occlusion." In Twelfth International Conference on Digital Image Processing, edited by Hiroshi Fujita and Xudong Jiang. SPIE, 2020. http://dx.doi.org/10.1117/12.2573031.

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Yan, Rui-Jun, Jing Wu, and Ji-Yeong Lee. "Occlusion avoidance in corners-based SLAM with different data association algorithms." In 2013 10th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI). IEEE, 2013. http://dx.doi.org/10.1109/urai.2013.6677394.

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Marpuc, Tughan, and A. Aydin Alatan. "Occlusion-aware HMM-based tracking by learning." In 2014 IEEE International Conference on Image Processing (ICIP). IEEE, 2014. http://dx.doi.org/10.1109/icip.2014.7025997.

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Eisemann, Elmar, and Xavier Decoret. "Plausible Image Based Soft Shadows Using Occlusion Textures." In 2006 19th Brazilian Symposium on Computer Graphics and Image Processing. IEEE, 2006. http://dx.doi.org/10.1109/sibgrapi.2006.35.

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Min, Dongbo, Sehoon Yea, and Anthony Vetro. "Occlusion handling based on support and decision." In 2010 17th IEEE International Conference on Image Processing (ICIP 2010). IEEE, 2010. http://dx.doi.org/10.1109/icip.2010.5653792.

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Aksoy, Volga, and Gerald Phaneuf. "Character shading in EA Sports MMA#8482;using projected Poisson disk based ambient occlusion." In ACM SIGGRAPH 2011 Posters. ACM Press, 2011. http://dx.doi.org/10.1145/2037715.2037736.

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Niu, Xiaoguang, and Yu Qiao. "Context-based occlusion detection for robust visual tracking." In 2017 IEEE International Conference on Image Processing (ICIP). IEEE, 2017. http://dx.doi.org/10.1109/icip.2017.8296964.

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