RTI (Reflective Transformation Imaging)
In my last post I mentioned that we have some training coming up in this technology in December, and I want to explain a bit more about it. I first learned about this technology from Bruce Zuckerman, PhD. He is a professor at USC and also the director of the...
Continue ReadingUpdated Training Calendar
I have updated my training calendar which includes several exciting new workshops: At the LEVA conference, coming up at the end of October, I will be presenting a workshop in Image Authentication with Dr. Catalin Grigoras and Jeffrey Smith. In addition, there are quite a number of great workshops and seminars scheduled....
Continue ReadingFree Law Enforcement Training at Photoshop World Las Vegas
John Penn is offering a free day of training for law enforcement at this year’s Photoshop World in Las Vegas. Topics will include: Image Verification Advanced Camera Technologies Photographic Techniques Video, Still, and Audio Workflows for Investigations Open Discussion and Feedback with Photoshop Engineers If you are heading out to Photoshop World, this will be...
Continue ReadingWhat Training Should Your Forensic Photographer, Photo Analyst or Video Analyst Have?
As I mentioned last week, I get asked for my CV during initial phone calls from attorneys. This series of posts is to help the attorney understand what to look for when reading the CVs of experts in forensic photography, photographic analysis, and video analysis, and this post specifically...
Continue ReadingImage Authentication Techniques
I had the pleasure of attending a workshop on Image Authentication at the National Center for Media Forensics at the University of Colorado a few weeks ago. It was presented by Catalin Grigoras, PhD and we utilized multiple methods of analyzing still images to determine if an image is...
Continue ReadingIn Photography and Video – We Want the Original Images
It always surprises me how often retaining attorneys send me digital copies of scanned color laser prints of photos in PDF format, or transcoded video files to do an analysis. Sometimes these images resemble their originals – sometimes they are a far cry from them. To do the best enhancement,...
Continue ReadingPhotoshop’s Image Processor
I just learned about an update to the Image Processor that supports nine file formats (including PNG), allows the selection of all the common output profiles, enables file renaming and custom folder naming. I mention it here because this is a tool that I use frequently, that I usually include...
Continue ReadingIs your expert an expert?
On a recent case opposing counsel hired a forensic photographer. The case involved an accident at night in which visibility was a key factor. The role of the forensic photographer in a case like this is to photograph the area to visually show what a person could see in...
Continue ReadingWhen to hire an expert
I was recently retained on a civil case just a month before the trial date. When called about the case, I was told that the firm never thought of hiring a forensic photographer until one showed up in opposing counsel’s expert list. In this case, I needed to photograph...
Continue ReadingImaging Forensics in Singapore
I had the pleasure to present four days of training to the Singapore Police in January. The Singapore Criminal Investigation Division had me over to present training in using Photoshop for analysis and enhancement of video and still images. Agencies in the US often hire me to present in-house training...
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