Download or read book Computational Photography written by Saghi Hajisharif and published by Linköping University Electronic Press. This book was released on 2020-02-18 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction and recent advancements of computational photography have revolutionized the imaging industry. Computational photography is a combination of imaging techniques at the intersection of various fields such as optics, computer vision, and computer graphics. These methods enhance the capabilities of traditional digital photography by applying computational techniques both during and after the capturing process. This thesis targets two major subjects in this field: High Dynamic Range (HDR) image reconstruction and Light Field (LF) compressive capturing, compression, and real-time rendering. The first part of the thesis focuses on the HDR images that concurrently contain detailed information from the very dark shadows to the brightest areas in the scenes. One of the main contributions presented in this thesis is the development of a unified reconstruction algorithm for spatially variant exposures in a single image. This method is based on a camera noise model, and it simultaneously resamples, reconstructs, denoises, and demosaics the image while extending its dynamic range. Furthermore, the HDR reconstruction algorithm is extended to adapt to the local features of the image, as well as the noise statistics, to preserve the high-frequency edges during reconstruction. In the second part of this thesis, the research focus shifts to the acquisition, encoding, reconstruction, and rendering of light field images and videos in a real-time setting. Unlike traditional integral photography, a light field captures the information of the dynamic environment from all angles, all points in space, and all spectral wavelength and time. This thesis employs sparse representation to provide an end-to-end solution to the problem of encoding, real-time reconstruction, and rendering of high dimensional light field video data sets. These solutions are applied on various types of data sets, such as light fields captured with multi-camera systems or hand-held cameras equipped with micro-lens arrays, and spherical light fields. Finally, sparse representation of light fields was utilized for developing a single sensor light field video camera equipped with a color-coded mask. A new compressive sensing model is presented that is suitable for dynamic scenes with temporal coherency and is capable of reconstructing high-resolution light field videos.

Download or read book Light Field Imaging for Deflectometry written by Uhlig, David and published by KIT Scientific Publishing. This book was released on 2023-07-14 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical measurement methods are becoming increasingly important for high-precision production of components and quality assurance. The increasing demand can be met by modern imaging systems with advanced optics, such as light field cameras. This work explores their use in the deflectometric measurement of specular surfaces. It presents improvements in phase unwrapping and calibration techniques, enabling high surface reconstruction accuracies using only a single monocular light field camera.

Download or read book Coded Optical Imaging written by Jinyang Liang and published by Springer Nature. This book was released on with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Photic Field written by Parry Hiram Moon and published by MIT Press (MA). This book was released on 1981 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Photic Field" brings a formal elegance and completeness to the portion of geometrical optics that deals with amounts of radiant energy. Since the time of Lambert, this discipline has been handled piecemeal by a great variety of methods. But by utilizing the full potentialities of field theory, the book unifies the subject and forges a powerful tool for handling practical applications. Such applications include solar heating, lighting design, photographic exposure, and color specification.The pharosage vector is used throughout the book, and divergence, curl, and gradient are employed. Potentials and quasi-potentials are important, and contour integration allows a double integral to be replaced by a single integral. These and other aspects of field theory will allow the reader to solve photometric problems that were previously difficult to formulate.Many of the formulations in geometrical optics, although conceptually clear, are computationally unwieldy. As a result, researchers until quite recently have had to rely on a scattered collection of rules of thumb and approximation methods. But now, with the general availability of computer, exact solutions are within range, and thus many of the equations given in "The Photic Field" may be directly applied almost for the first time.

Download or read book Fourier Ptychographic Imaging written by Guoan Zheng and published by Morgan & Claypool Publishers. This book was released on 2016-06-30 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book demonstrates the concept of Fourier ptychography, a new imaging technique that bypasses the resolution limit of the employed optics. In particular, it transforms the general challenge of high-throughput, high-resolution imaging from one that is coupled to the physical limitations of the optics to one that is solvable through computation. Demonstrated in a tutorial form and providing many MATLAB® simulation examples for the reader, it also discusses the experimental implementation and recent developments of Fourier ptychography. This book will be of interest to researchers and engineers learning simulation techniques for Fourier optics and the Fourier ptychography concept.

Download or read book Advances in Visual Semiotics written by and published by Walter de Gruyter. This book was released on 2011-12-07 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Emerging Trends and Applications in Artificial Intelligence written by Fausto Pedro García Márquez and published by Springer Nature. This book was released on with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Surface Plasmon Resonance in Bioanalysis written by and published by Elsevier. This book was released on 2021-11-11 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Plasmon Resonance in Bioanalysis, Volume 95 in the Comprehensive Analytical Chemistry series, contains a wide range of topics on the applications and new advances of surface plasmon resonance (SPR) in bioanalysis, including Surface plasmon resonance microscopy for single-cell based drug screening, Phase-Sensitive Surface Plasmon Resonance Sensors for Highly Sensitive Bioanalysis, SPR coupled to ambient mass spectrometry, Surface Plasmon Resonance Microscopy for activity detection and imaging of single cells, SPR for water pollutant detection and biofouling control, SPR imaging for cellular analysis and detection, Progress in detection of surface palsmon resonance for biorefinery technology, and more. Additional chapters cover Long-range surface plasmon resonance and its biological sensing applications and Critical issues in clinical and biomedical applications of Surface Plasmon Resonance sensing. - Provides updates on the latest applications of SPR microscopy in cell analysis - Covers the latest design in SPR sensing for highly sensitive bioanalysis - Presents the critical issues in clinical and biomedical applications of SPR

Download or read book Quantitative Phase Imaging of Cells and Tissues written by Gabriel Popescu and published by McGraw Hill Professional. This book was released on 2011-03-14 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cutting-edge quantitative phase imaging techniques and their applications Filled with unique, full-color images taken by advanced quantitative phase imaging (QPI), Quantitative Phase Imaging of Cells and Tissues thoroughly explores this innovative technology and its biomedical applications. An introductory background on optical imaging and traditional optical microscopy is included to illustrate concept development. The book explains how various visualization modalities can be obtained by numerical calculations. This authoritative resource reveals how to take full advantage of the unprecedented capabilities of QPI, such as rendering scattering properties of minute subcellular structures and nanoscale fluctuations in live cells. Coverage includes: Groundwork Spatiotemporal field correlations Image characteristics Light microscopy Holography Point scanning QPI methods Principles of full-field QPI Off-axis full-field methods Phase-shifting techniques Common-path methods White light techniques Fourier transform light scattering (FTLS) Current trends in QPI

Download or read book Artificial Intelligence and Robotics written by Huimin Lu and published by Springer. This book was released on 2017-10-31 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights selected papers presented at the 2nd International Symposium on Artificial Intelligence and Robotics 2017 (ISAIR2017), held in Nakamura Centenary Memorial Hall, Kitakyushu, Japan on November 25–26, 2017. Today, the integration of artificial intelligence and robotic technologies has become a topic of growing interest for both researchers and developers from academic fields and industries worldwide, and artificial intelligence is poised to become the main approach pursued in next-generation robotics research. The rapidly growing number of artificial intelligence algorithms and big data solutions has significantly extended the number of potential applications for robotic technologies. However, it also poses new challenges for the artificial intelligence community. The aim of this symposium is to provide a platform for young researchers to share the latest scientific achievements in this field, which are discussed in these proceedings.

Download or read book Frontiers in Optics and Photonics written by Federico Capasso and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-06-08 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a cutting-edge research overview on the latest developments in the field of Optics and Photonics. All chapters are authored by the pioneers in their field and will cover the developments in Quantum Photonics, Optical properties of 2D Materials, Optical Sensors, Organic Opto-electronics, Nanophotonics, Metamaterials, Plasmonics, Quantum Cascade lasers, LEDs, Biophotonics and biomedical photonics and spectroscopy.

Download or read book Photon Counting Image Sensors written by Eric R. Fossum and published by MDPI. This book was released on 2018-07-06 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Photon-Counting Image Sensors" that was published in Sensors

Download or read book Plenoptic Imaging and Processing written by Lu Fang and published by Springer Nature. This book was released on with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Immersive Video Technologies written by Giuseppe Valenzise and published by Academic Press. This book was released on 2022-09-29 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a broad overview of the different modalities of immersive video technologies—from omnidirectional video to light fields and volumetric video—from a multimedia processing perspective. From capture to representation, coding, and display, video technologies have been evolving significantly and in many different directions over the last few decades, with the ultimate goal of providing a truly immersive experience to users. After setting up a common background for these technologies, based on the plenoptic function theoretical concept, Immersive Video Technologies offers a comprehensive overview of the leading technologies enabling visual immersion, including omnidirectional (360 degrees) video, light fields, and volumetric video. Following the critical components of the typical content production and delivery pipeline, the book presents acquisition, representation, coding, rendering, and quality assessment approaches for each immersive video modality. The text also reviews current standardization efforts and explores new research directions. With this book the reader will a) gain a broad understanding of immersive video technologies that use three different modalities: omnidirectional video, light fields, and volumetric video; b) learn about the most recent scientific results in the field, including the recent learning-based methodologies; and c) understand the challenges and perspectives for immersive video technologies. - Describes the whole content processing chain for the main immersive video modalities (omnidirectional video, light fields, and volumetric video) - Offers a common theoretical background for immersive video technologies based on the concept of plenoptic function - Presents some exemplary applications of immersive video technologies

Download or read book Optogenetics written by Sophie Vriz and published by Royal Society of Chemistry. This book was released on 2019 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optogenetic tools have allowed significant advances in the understanding of biological problems, particularly in the neurosciences field. Biological tools as well as optical set-ups have evolved and a wide range of probes and light-controllable modules are now available. The aim of this book is to give a flavour of illumination strategies and imaging with an overview of the different optogenetic tools and their main applications in cell biology. Based on examples covering the different aspects of cell biology, this book provides a practical approach for using light-emitting sensors and light-driven actuators.

Download or read book Liquid Cell Electron Microscopy written by Frances M. Ross and published by Cambridge University Press. This book was released on 2017 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: 2.6.2 Electrodes for Electrochemistry

Download or read book Pattern Recognition and Computer Vision written by Huimin Ma and published by Springer Nature. This book was released on 2021-10-22 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 4-volume set LNCS 13019, 13020, 13021 and 13022 constitutes the refereed proceedings of the 4th Chinese Conference on Pattern Recognition and Computer Vision, PRCV 2021, held in Beijing, China, in October-November 2021. The 201 full papers presented were carefully reviewed and selected from 513 submissions. The papers have been organized in the following topical sections: Object Detection, Tracking and Recognition; Computer Vision, Theories and Applications, Multimedia Processing and Analysis; Low-level Vision and Image Processing; Biomedical Image Processing and Analysis; Machine Learning, Neural Network and Deep Learning, and New Advances in Visual Perception and Understanding.