Billedbehandling: systemer og teknologi

The book explains to the reader the necessary considerations and modelling ideas required for the successful design of optical imaging systems incorporating diffractive surfaces.

Electronic imaging and sensing systems are used for medical diagnosis. In recent years, for example, dental offices have been switching to digital X-ray imaging systems. Another growing application area is the use of digital infrared imaging systems for home inspections which can spot invisible water damage. Of course, electronic imaging and sen

This two-volume book set explores how sensors and computer vision technologies are used for the navigation, control, stability, reliability, guidance, fault detection, self-maintenance, strategic re-planning and reconfiguration of unmanned aircraft systems (UAS).

This two-volume book set explores how sensors and computer vision technologies are used for the navigation, control, stability, reliability, guidance, fault detection, self-maintenance, strategic re-planning and reconfiguration of unmanned aircraft systems (UAS).

Gli spazi digitali e quelli reali sono sempre più intrecciati e nei fatti compenetrati in modo indissolubile gli uni negli altri. Chi continua a trattarli separatamente non considera che appartengono ad un unicum, più complesso ed esteso di quanto esistito finora. Le reazioni a ogni stimolazione proveniente da digitale sempre e comunque impattano sulle nostre emozioni, sul nostro corpo e conseguentemente sullo spazio che ci ospita. La rivoluzione digitale è un momento straordinario nella storia del design degli spazi, i suoi paradigmi deformano quelli esistenti nel progetto, nel mercato, nella formazione, nella rete. Mai come ora, i nostri sensi sono chiamati come strumenti di percezione, analisi, reazione e azione per la progettazione più articolata e consapevole di nuovi paradigmi e scenari di design.

Developed by an international team of experts, this book covers free space optical (FSO) communication technologies for realising high speed large-capacity terrestrial and aerospace communications.

This research and reference text provides a comprehensive and authoritative survey of the state-of-the-art in terahertz electronics research. Covering the fundamentals, operational principles, and theoretical aspects of the field, the book equips the reader to take the practical steps involved in the fabrication of devices that work in the terahertz frequency range. Volume one focuses on solid-state devices and vacuum tubes, discussing Schottky, MIM, self-switching, geometric, resonant tunneling, IMPATT and Gunn diodes, HBTs, MOSFETs, and HEMTs, as well as traveling wave tubes, backward wave oscillators, gyrotrons and free electron lasers. Intended for researchers and professionals in the field, this text will be an essential reference for anyone working at the cutting edge of terahertz electronics.Key Features: Provides a comprehensive review of the state-of-the-art in terahertz electronics researchThis volume covers solid-state THz electronics and vacuum THz electronicsIncludes fundamentals, operational principles, theoretical aspects of devices and circuits, and advanced researchIncludes discussion sections and illustrative numerical problemsProvides an up-to-date, cohesive text for researchers and professionals, and acts as valuable supplementary reading for electronic engineering students

The Magnetic Resonance Imaging Technologist (MRI) Passbook(R) prepares you by sharpening the skills and abilities necessary to succeed on your upcoming entrance exam.

This study is designed for graduate technicians working in laboratories or quality test offices, as well as academics and industrial researchers in optical communications and optical sensors and students attending postgraudate courses on optical engineering.

Worldwide, carcinomas are the second leading cause of death after cardiovascular diseases. Of these, more than 25 % are caused by cancer in the gastrointestinal tract. However, screening still misses about 20 % of carcinomas. An optimal solution would be a red flag technology to locate the suspicious area. Despite the use of many optical technologies and advancements in traditional endoscopic technologies, most methods have failed to significantly improve the detectability of carcinomas in the GI. Therefore, it has been suggested in the literature to use spectroscopic quantitative measurements, which is achieved by hyperspectral imaging. However, in this work, a multispectral endoscope system for in vivo use is used for human (stomach) and mouse (colon) studies. In the human study, the tumours could only be found to a limited extent with the standard methods (MCC = 0.32; ACC2=0.68). Nevertheless, this is a significant improvement compared to previous results. The introduction of spectral spatial variation as a spatial-spectral feature improves the results significantly again. Compared to the human study, the results from the mouse model show better classification results: ACC2 = 0.73 and MCC = 0.47.Thus, for the development of an endoscopic red flag technique, a point technique for correct pre-labelling of the data is needed. Moreover, the results of this MSI in vivo study with spatial features are similar to the recent HSI ex vivo studies. Therefore, it is likely that MSI will remain part of future research.