Understanding Forensic Digital Imaging

Author: Herbert L. Blitzer
Publisher: Academic Press
ISBN: 9780080569956
Format: PDF, ePub, Docs
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Understanding Forensic Digital Imaging offers the principles of forensic digital imaging and photography in a manner that is straightforward and easy to digest for the professional and student. It provides information on how to photograph any setting that may have forensic value, details how to follow practices that are acceptable in court, and recommends what variety of hardware and software are most valuable to a practitioner. In addition to chapters on basic topics such as light and lenses, resolution, and file formats, the book contains forensic-science-specific information on SWGIT and the use of photography in investigations and in court. Of particular note is Chapter 17, Establishing Quality Requirements, which offers information on how to create a good digital image, and is more comprehensive than any other source currently available. Covers topics that are of vital importance to the practicing professional Serves as an up-to-date reference in the rapidly evolving world of digital imaging Uses clear and concise language so that any reader can understand the technology and science behind digital imaging

Forensic Uses of Digital Imaging Second Edition

Author: John C. Russ
Publisher: CRC Press
ISBN: 1498733085
Format: PDF, Docs
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The ability to work with, and retrieve images, is vital to forensic and criminal case work. During a five-decade-long career, author John C. Russ has taught methods for image processing and measurement to thousands of students. Forensic Uses of Digital Imaging, Second Edition distills his classroom and workshop material to present the information most relevant to forensic science. Since the publication of the first edition, there have been many significant changes in technology that have revolutionized the ways digital images are used in forensic investigations. Fully updated, the second edition: Covers the widespread advancements of digital imaging photography and processing Discusses the increased power, storage capacity, and use of digital cameras, laptop computers, tablets, and cell phones in forensic science Gives real-world examples to illustrate comparisons between different processing options Includes hundreds of full-color images that demonstrate technologies and techniques Addresses issues of admissibility of forensic investigation results under Frye and Daubert rules Provides guidelines and suggestions for effectively presenting and explaining results Forensic Uses of Digital Imaging, Second Edition explains concepts with minimal jargon, and the methods and tools described in this book can be implemented in a broad spectrum of available computer programs. By demonstrating how these methods can be applied to a variety of images, this book helps readers develop the ability to understand when and how specific techniques should be used. It will be of particular use in casework for practicing photography and imaging police and forensic professionals who need to verify and explain both interpretations and processes to legal professionals, judges, and juries.

Practical Forensic Digital Imaging

Author: Patrick Jones
Publisher: CRC Press
ISBN: 1420060139
Format: PDF, ePub
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Well-documented scenes can prove to be invaluable pieces of evidence at trial, and the ability to take compelling photographs is a critical skill for forensic scientists and investigators. Practical Forensic Digital Imaging: Applications and Techniques is an up-to-date and thorough treatment of digital imaging in the forensic sciences. Balancing practical considerations with scientific and standards-based requirements, the book’s clear, concise presentation illustrates the essentials of digital imaging required by professionals in the field. Enhanced with crisp color photos, the book covers a host of critical topics, including: The fundamentals of photographing crime scenes The history of photography and the transition to digital imaging Digital camera hardware and photographic techniques Light, filters, and macro/micro imaging Lay, professional, and expert witnesses, and the implications of Frye and Daubert Enhancement of images and digital panoramic camera scanning Storage of digital media Ultraviolet and infrared imaging Digital photo imaging microscopes Covering the full range of scenarios that forensic professionals encounter, the author includes special sections dedicated to photography involving footwear and tire impressions, vehicles, death and morgue scenes, and taphonomic and entomological imaging, as well as fingerprints, burglaries, fire and arson, sex offenses, blood, and trace evidence and microscopy. The techniques in this volume enable photographers to capture the images that will not only tell the story, but will also stand up in court. Watch Patrick Jones in his laboratory on the CRC Press YouTube channel.

Forensic Digital Image Processing

Author: Brian Dalrymple
Publisher: CRC Press
ISBN: 135111221X
Format: PDF, Kindle
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The digital revolution over the past several decades has advanced every facet of evidence detection, photography, optimization, and interpretation. Forensic scientists and practitioners have benefited tremendously from the move from film to digital. With proper procedures in place, digital images and casework capabilities have increased tremendously in both complexity and range due to a vast array of tools to enhance evidence and photography. Forensic Digital Image Processing: Optimization of Impression Evidence provides the forensic investigator with the tools and understanding to extract, optimize, and interpret the maximum evidence possible from crime scenes to increase identifications. The book begins by examining the emergence of forensic digital image processing, and the gradual improvement and acceptance of the science over the past four decades. Coverage includes looking at the issues of image integrity and authentication including forensic image optimization and the manipulation of images.? Chapters explore techniques exploiting color theory, modes, and channels to optimize signal-to-noise ratio in images. One of the greatest assets of digital image technology is the ability to combine multiple images of the same subject to create a final, blended image: one that displays the desired evidence and is especially useful for fingerprint or footwear impression. Later chapters demonstrate image subtraction, focus stacking, and high dynamic range, utilizing images in optimum focus and with substrate interference diminished or removed entirely. The authors look at fast Fourier transform as an optimal tool for noise removal, addressing basic theory and diagnosis of the noise signatures. The book discusses the history of digital imaging techniques and their treatment within the court system. Forensic Digital Image Processing: Optimization of Impression Evidence serves as an invaluable resource and tool for practicing professionals–as well as those new to the field—to look at best practices, the latest technology, and advances in utilizing the increasing array of tools of the trade.

Forensic Digital Imaging and Photography

Author: Herbert L. Blitzer
Publisher: Academic Press
ISBN: 9780121064112
Format: PDF
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"This hands-on guide clarifies the difference between what can be done digitally and what should be done in a forensic setting, and helps the reader "learn by doing" with exercises and step-by-step instructions. The images and exercises in the CD-ROM provide practical examples of the techniques described in the book." "Law enforcement professionals who follow the recommendations in this text can feel confident that their handling of imaging evidence will stand up to the high standards necessary for prosecuting criminal cases."--BOOK JACKET.

Forensic Footwear Evidence

Author: William J. Bodziak
Publisher: CRC Press
ISBN: 1315356961
Format: PDF, Docs
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The utilization of footwear impression evidence continues to evolve with new materials, equipment and techniques, providing an increased ability to detect, record, enhance, and examine this form of evidence. Recently developed technology now allows investigators to more efficiently or, in some cases, instantly link multiple crime scenes where impressions have been produced by the same perpetrator. Forensic Footwear Evidence covers a wide range of relevant topics, including historical references, general information about the formation and investigative use of footwear impressions, and the best practices and considerations that apply to the recovery, enhancement, and examination of this evidence. Drawing on the author’s 44 years of acquired knowledge and experience, it is the most comprehensive and authoritative text published to date on this topic. Highlighted topics covered within the book include Three chapters covering footwear manufacturing Shoe grading, sizing, and the forensic application of sizing information Examination and reporting procedures Casting impressions in snow Barefoot evidence Topics of interest for both prosecution and defense attorneys The book includes more than 300 color photographs and illustrations throughout, as well as case examples that apply theoretical concepts to the real world. A single, complete reference on the subject, Forensic Footwear Evidence presents a wide range wealth of information that will serve as an invaluable reference to novice and experienced examiners, crime scene technicians, investigators, and prosecution and defense counselors alike.

Introduction to Crime Scene Photography

Author: Edward M. Robinson
Publisher: Academic Press
ISBN: 0123865433
Format: PDF
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From the author of Crime Scene Photography, 2nd Edition, this introductory text serves as a detailed nuts-and-bolts version of its big brother, currently required reading for certification by the IAI Crime Scene Certification Board. Written for those just beginning their educations related to crime scene investigations, Introduction to Crime Scene Photography shares many of the features of the advanced text. This text initiates the novice to all the essentials of basic crime scene photography techniques. And, it provides a smooth transition to the more complicated and advanced techniques found in the larger text. The beginning of the book deals with basic theory and science of photography. This acquaints the reader with knowledge required to take superior photographs using composition, lighting and focus. Then follows photographing the crime scene, including specialty types of photography such as ultraviolet, fluorescence and infrared, going digital, using photos specifically to document bodies, wounds, and other related components to the crime scene. Also included are two chapters on the legal aspects of forensic photography and digital image processing. *Contains over 350 high-quality 4-color images *Includes a Companion Web site hosting images from the volume as well as an Instructor Web site with key words, lecture slides, test bank and supplemental images *'Rules of Thumb' are included to highlight key concepts

Imaging for Forensics and Security

Author: Ahmed Bouridane
Publisher: Springer Science & Business Media
ISBN: 9780387095325
Format: PDF, ePub
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Imaging for Forensics and Security: From Theory to Practice provides a detailed analysis of new imaging and pattern recognition techniques for the understanding and deployment of biometrics and forensic techniques as practical solutions to increase security. It contains a collection of the recent advances in the technology ranging from theory, design, and implementation to performance evaluation of biometric and forensic systems. This book also contains new methods such as the multiscale approach, directional filter bank, and wavelet maxima for the development of practical solutions to biometric problems. The book introduces a new forensic system based on shoeprint imagery with advanced techniques for use in forensics applications. It also presents the concept of protecting the originality of biometric images stored in databases against intentional and unintentional attacks and fraud detection data in order to further increase the security.

Digital Image Forensics

Author: Husrev Taha Sencar
Publisher: Springer Science & Business Media
ISBN: 1461407575
Format: PDF, ePub, Mobi
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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.

Clark s Positioning in Radiography 12Ed

Author: A. Stewart Whitley
Publisher: CRC Press
ISBN: 1444114603
Format: PDF, Kindle
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First published in 1939, this is the definitive text on patient positioning for the diagnostic radiography student and practitioner. The experienced author team appreciates that there is no substitute for a good understanding of basic skills in patient positioning and an accurate knowledge of anatomy to ensure good radiographic practice. This 12th edition retains the book’s pre-eminence in the field, with hundreds of positioning photographs and explanatory line diagrams, a clearly defined and easy-to-follow structure, and international applicability. The book presents the essentials of radiographic techniques in a practical way, avoiding unnecessary technical complexity and ensuring that the student and practitioner can find quickly the information that they require regarding particular positions. All the standard positioning is included, accompanied by supplementary positions where relevant and illustrations of pathology where appropriate. Common errors in positioning are also discussed.