Remote Sensing Digital Image Analysis provides the non-specialist with an introduction to quantitative evaluation of satellite and aircraft derived remotely retrieved data. Since the first edition of the book there have been significant developments in the algorithms used for the processing and analysis of remote sensing imagery; nevertheless many of the fundamentals have substantially remained the same. This new edition presents material that has retained value since those early days, along with new techniques that can be incorporated into an operational framework for the analysis of remote sensing data.
Each chapter covers the pros and cons of digital remotely sensed data, without detailed mathematical treatment of computer based algorithms, but in a manner conductive to an understanding of their capabilities and limitations. Problems conclude each chapter.
Photographic imagery has come a long way from the pinhole cameras of the nineteenth century. Digital imagery, and its applications, develops in tandem with contemporary society's sophisticated literacy of this subtle medium. This book examines the ways in which digital images have become ever more ubiquitous as legal and medical evidence, just as they have become our primary source of news and have replaced paper-based financial documentation. Crucially, the contributions also analyze the very profound problems which have arisen alongside the digital image, issues of veracity and progeny that demand systematic and detailed response: It looks real, but is it? What camera captured it? Has it been doctored or subtly altered? Attempting to provide answers to these slippery issues, the book covers how digital images are created, processed and stored before moving on to set out the latest techniques for forensically examining images, and finally addressing practical issues such as courtroom admissibility. In an environment where even novice users can alter digital media, this authoritative publication will do much so stabilize public trust in these real, yet vastly flexible, images of the world around us.
Biological systems are a source of inspiration in the development of small autonomous sensor nodes. The two major types of optical vision systems found in nature are the single aperture human eye and the compound eye of insects. The latter are among the most compact and smallest vision sensors. The eye is a compound of individual lenses with their own photoreceptor arrays. The visual system of insects allows them to fly with a limited intelligence and brain processing power. A CMOS image sensor replicating the perception of vision in insects is discussed and designed in this book for industrial (machine vision) and medical applications.
The CMOS metal layer is used to create an embedded micro-polarizer able to sense polarization information. This polarization information is shown to be useful in applications like real time material classification and autonomous agent navigation. Further the sensor is equipped with in pixel analog and digital memories which allow variation of the dynamic range and in-pixel binarization in real time. The binary output of the pixel tries to replicate the flickering effect of the insect's eye to detect smallest possible motion based on the change in state. An inbuilt counter counts the changes in states for each row to estimate the direction of the motion. The chip consists of an array of 128x128 pixels, it occupies an area of 5 x 4 mm2 and it has been designed and fabricated in an 180nm CMOS CIS process from UMC.
The study of proxemics - the human use of space - is reimagined for the digital age in this book, a compelling examination of the future of the ways we move. Whereas much writing on the subject focuses on what digital technology might do for us, this book explores what the same technology might do to us. Combining dynamic stories, cutting-edge research, and deep reflection on the role of space in our lives, Digital Proxemics examines the ways that our uses of physical and digital spaces and our uses of technology are converging. It investigates the role of digital communication in proxemics, offering explorations of the ways digital technology shapes our personal bodily movement, our interpersonal negotiation of social space, and our navigation of public spaces and places. Through the lens of information and user-experience design, it adds forbidden spaces, ubicomp, augmented reality, digital surveillance, and virtual reality to the growing lexicon surrounding proxemics. The result is a spatial turn in the study of digital technology and a digital turn in the study of proxemics. As our culture changes, our ability to make choices about how to move will be called into question, as will our expectations for what roles technology will play in our lives. As we navigate this intersection, Digital Proxemics is at once a valuable lens through which we can view our shifting culture, a cautionary tale through which we might envision problematic outcomes, and an optimistic projection of possibility for the future of human communication and technology interaction.
The Snow-Image: A Childish Miracle
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