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Respiratory and cardiac motion leads to image degradation in Positron Emission Tomography (PET), which impairs quantification. In this book, the authors present approaches to motion estimation and motion correction in thoracic PET. The approaches for motion estimation are based on dual gating and mass-preserving image registration (VAMPIRE) and mass-preserving optical flow (MPOF). With mass-preservation, image intensity modulations caused by highly non-rigid cardiac motion are accounted for. Within the image registration framework different data terms, different variants of regularization and parametric and non-parametric motion models are examined. Within the optical flow framework, different data terms and further non-quadratic penalization are also discussed. The approaches for motion correction particularly focus on pipelines in dual gated PET. A quantitative evaluation of the proposed approaches is performed on software phantom data with accompanied ground-truth motion information. Further, clinical applicability is shown on patient data. The book concludes with an outlook of recent developments and potential future advances in the field of PET motion correction.

Computer Science. --- Computer Imaging, Vision, Pattern Recognition and Graphics. --- Imaging / Radiology. --- Signal, Image and Speech Processing. --- Computer science. --- Radiology, Medical. --- Computer vision. --- Informatique --- Vision par ordinateur --- Engineering & Applied Sciences --- Electrical & Computer Engineering --- Electrical Engineering --- Technology - General --- Applied Physics --- Tomography, Emission. --- Computerized emission tomography --- Emission tomography --- PET (Tomography) --- PET-CT (Tomography) --- Positron emission tomography --- Positron emission transaxial tomography --- Radionuclide tomography --- Scintigraphy, Tomographic --- Tomography, Radionuclide --- Radiology. --- Computer graphics. --- Diagnosis --- Diagnostic imaging --- Positrons --- Radioisotope scanning --- Data processing --- Emission --- Clinical radiology --- Radiology, Medical --- Radiology (Medicine) --- Medical physics --- Machine vision --- Vision, Computer --- Artificial intelligence --- Image processing --- Pattern recognition systems --- Optical data processing. --- Signal processing. --- Image processing. --- Speech processing systems. --- Computational linguistics --- Electronic systems --- Information theory --- Modulation theory --- Oral communication --- Speech --- Telecommunication --- Singing voice synthesizers --- Pictorial data processing --- Picture processing --- Processing, Image --- Imaging systems --- Optical data processing --- Processing, Signal --- Information measurement --- Signal theory (Telecommunication) --- Radiological physics --- Physics --- Radiation --- Optical computing --- Visual data processing --- Bionics --- Electronic data processing --- Integrated optics --- Photonics --- Computers --- Optical equipment

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This book constitutes the refereed proceedings of the 9th IAPR-TC-15 International Workshop on Graph-Based Representations in Pattern Recognition, GbRPR 2013, held in Vienna, Austria, in May 2013. The 24 papers presented in this volume were carefully reviewed and selected from 27 submissions. They are organized in topical sections named: finding subregions in graphs; graph matching; classification; graph kernels; properties of graphs; topology; graph representations, segmentation and shape; and search in graphs.

Computer science. --- Data structures (Computer science). --- Computational complexity. --- Computer vision. --- Computer graphics. --- Optical pattern recognition. --- Computer Science. --- Pattern Recognition. --- Image Processing and Computer Vision. --- Computer Imaging, Vision, Pattern Recognition and Graphics. --- Computer Graphics. --- Discrete Mathematics in Computer Science. --- Data Structures. --- Engineering & Applied Sciences --- Electrical & Computer Engineering --- Computer Science --- Electrical Engineering --- Automatic drafting --- Graphic data processing --- Graphics, Computer --- Machine vision --- Vision, Computer --- Complexity, Computational --- Information structures (Computer science) --- Structures, Data (Computer science) --- Structures, Information (Computer science) --- Informatics --- Computer science --- Image processing. --- Pattern recognition. --- Mathematics. --- Pattern recognition systems --- Graph theory --- Data structures (Computer scienc. --- Data structures (Computer science) --- Electronic data processing --- Machine theory --- Computer art --- Graphic arts --- Engineering graphics --- Image processing --- Artificial intelligence --- Optical data processing --- Pattern perception --- Perceptrons --- Visual discrimination --- File organization (Computer science) --- Abstract data types (Computer science) --- Digital techniques --- Optical data processing. --- Computer science—Mathematics. --- Optical computing --- Visual data processing --- Bionics --- Integrated optics --- Photonics --- Computers --- Design perception --- Pattern recognition --- Form perception --- Perception --- Figure-ground perception --- Optical equipment

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This book constitutes the refereed proceedings of the 8th IAPR-TC-15 International Workshop on Graph-Based Representations in Pattern Recognition, GbRPR 2011, held in Münster, Germany, in May 2011. The 34 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on graph-based representation and characterization, graph matching, classification, and querying, graph-based learning, graph-based segmentation, and applications.

Discrete mathematics --- Mathematical statistics --- Computer science --- Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- patroonherkenning --- beeldverwerking --- factoranalyse --- discrete wiskunde --- grafische vormgeving --- informatica --- KI (kunstmatige intelligentie) --- robots

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This book constitutes the refereed proceedings of the 9th IAPR-TC-15 International Workshop on Graph-Based Representations in Pattern Recognition, GbRPR 2013, held in Vienna, Austria, in May 2013. The 24 papers presented in this volume were carefully reviewed and selected from 27 submissions. They are organized in topical sections named: finding subregions in graphs; graph matching; classification; graph kernels; properties of graphs; topology; graph representations, segmentation and shape; and search in graphs.

Discrete mathematics --- Mathematical statistics --- Computer science --- Artificial intelligence. Robotics. Simulation. Graphics --- Computer. Automation --- computervisie --- patroonherkenning --- beeldverwerking --- factoranalyse --- complexiteit --- discrete wiskunde --- computers --- grafische vormgeving --- informatica --- database management --- programmatielogica --- KI (kunstmatige intelligentie) --- computerkunde --- optica