Understanding Forensic Digital Imaging Books

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Understanding Forensic Digital Imaging


Understanding Forensic Digital Imaging
  • Author : Herbert L. Blitzer
  • Publisher : Academic Press
  • Release : 2010-07-26
  • ISBN : 0080569951
  • Language : En, Es, Fr & De
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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 Digital Image Processing


Forensic Digital Image Processing
  • Author : Brian Dalrymple
  • Publisher : CRC Press
  • Release : 2018-03-20
  • ISBN : 9781351112215
  • Language : En, Es, Fr & De
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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 Uses of Digital Imaging


Forensic Uses of Digital Imaging
  • Author : John C. Russ
  • Publisher : CRC Press
  • Release : 2001-05-25
  • ISBN : 9781420041477
  • Language : En, Es, Fr & De
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It happens all too often: The vague images of a poor quality video from a surveillance camera splash across the screen in a darkened courtroom and the guilt or innocence of the defendant hinges on whether or not the jury can determine if he or she is really the person in those images. Interpretation and misinterpretation of information about imagin

Forensic Digital Imaging and Photography


Forensic Digital Imaging and Photography
  • Author : Herbert L. Blitzer
  • Publisher : Academic Press
  • Release : 2002-02-07
  • ISBN : 0121064115
  • Language : En, Es, Fr & De
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Forensic Digital Imaging and Photography covers each facet of digital imaging-how to select equipment, when to use it, how to produce a good image, and how to present that image in court. It 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. Key Features: Teaches the basics of digital imaging and how to choose the right tool for each job Describes how to master specific tasks such as scanning, selecting media for archiving, configuring a digital imaging system, setting the proper resolution, adjusting the image, comparing images with known samples, and much more Includes detailed graphics of the photography and imaging tools, and dialog boxes to describe each function Provides easy-to-follow instructions for each exercise in the book, including required images Describes potential pitfalls of using digital technology Law enforcement officials 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 presentation in criminal cases. Topics covered in the book: The opening chapters teach the basics of digital imaging and how to choose the right tool for each job. The remaining chapters show how to: Scan original negatives and slides with a film scanner Scan photographs, line drawings, and documents with a flatbed scanner Select the best equipment for the job Select the best media for archiving Configure and use a digital imaging system And more Exercises provide step-by-step instructions on how to: Size and set the resolution of an image Adjust highlights, shadows, contrast, color, density, etc. Record each action performed on the images Separate images into color channels Graphically compare wounds with weapons and compare handwriting exemplars with questioned samples, etc. Remove backgrounds from fingerprints using FFT filters Use a sizing tool to adjust images for direct comparison Use frequency filters to enhance hidden facial features Teaches the basics of digital imaging and how to choose the right tool for each job Describes how to master specific tasks such as scanning, selecting media for archiving, configuring a digital imaging system, setting the proper resolution, adjusting the image, comparing images with known samples, and much more Includes detailed graphics of the photography and imaging tools, and dialog boxes to describe each function Describes potential pitfalls of using digital technology

Practical Forensic Digital Imaging


Practical Forensic Digital Imaging
  • Author : Patrick Jones
  • Publisher : CRC Press
  • Release : 2011-02-10
  • ISBN : 9781439877722
  • Language : En, Es, Fr & De
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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.