RTI in Forensics

When applied in the field of forensics, RTI can dramatically improve the visualization of textural evidence, such as footprints, tire impressions, tool marks, patent fingerprints, cadaver prints, indented writing, ink cross-overs, and obliterated serial numbers. See examples and more…

On-Site RTI Training

Let RTI Training come to you! CHI can deliver our 4-day training class in Reflectance Transformation Imaging (RTI) at our studio in San Francisco or on site at your institution for groups of up to 15 people. This can be convenient for groups, and rates can be cost-effective per student, avoiding travel costs and other logistics. Write to training@c-h-i.org with your inquiry or a proposal. More…

Half-Day Workshops

Catch up on computational photography in an afternoon! Our half-day workshop is a great introduction to RTI and related topics. Learn how Reflectance Transformation Imaging (RTI) can be used to create digital substitutions, or surrogates, that reveal object features difficult to discern even under direct physical examination. More…


Special RTI 40-Hour Workshop in Forensics
December 3–7, 2012

This class has been completed. CHI looks forward to more training in the forensics community!
tool-marks array with RTI enhancement

Tools (on left) associated with tool-marks array on a metal plate, enhanced by RTI (on right)


“The concepts, equipment, and software were discussed thoroughly and clearly. There was ample amount of time to practice hands-on work. It was an excellent workshop and I’m grateful for the experience.”—Trainee, MCI/Smithsonian

“Instruction is excellent; class is well structured. Very successful at ensuring participants learn the skills well enough to perform independently.”—Trainee, UCLA/Getty

This 5-day training class is specialized for forensic professionals. It is appropriate for anyone involved in photographing evidence, including forensic photographers, footwear and tire-track examiners, tool-mark examiners, trace-evidence analysts, questioned-document examiners, and crime-scene investigators.

A combination of lecture, demonstration, and lots of hands-on work, the class features close collaborative learning between trainers and trainees, conducted in small teams of four to six people. Participants will learn a process called “highlight Reflectance Transformation Imaging (RTI),” including how to take RTI images, compile RTI files, and disseminate these for forensic use. Included are the latest visual examples of RTI as applied to forensics. The training session is being offered in conjunction with Imaging Forensics and is hosted at the Sheriff's Office in San Luis Obispo, California. Example objects imaged during the session will include a variety of forensic materials.

After attending this class, you will know how to implement the RTI workflow in your own professional environment, including setup, capture, process, view, and dissemination of RTIs on the Internet. Each participant will receive copies of the processing and viewing software, class materials, and checklists used in the class.

Forensics Training Workshop: December 3–7, 2012

In collaboration with Imaging Forensics logo

When Monday, December 3, 2012, 9:00 am–5:00 pm PST
Optional 8-hour introductory module covering photography basics, best practices, and legal concerns for RTI. Offered for those who need to improve their photographic skills prior to RTI training.

Tuesday–Friday, December 4–7, 2012, 9:00 am–5:00 pm PST
4-day hands-on training in RTI
Where San Luis Obispo Sheriff’s Office
1585 Kansas Avenue
San Luis Obispo, CA 93406
Fee $1295 per person (Upon receiving your registration form, we will send you an invoice that you can pay by credit card or check. Credit card payment instructions are on the invoice.)
Registration Form (PDF) Download (1.9 MB)
Forensics Training Flyer (PDF) Download (193 KB)
Questions? Send email to training@c-h-i.org

Who Should Attend

What You Will Learn