![]() ![]() ![]() “The real challenge is acquiring and processing images,” says Edward Delp, an electrical and computer engineer developing GARI with researchers at Purdue University. But even in these early stages, more than a dozen police agencies in Indiana have signed up with the program. The program is also still honing its ability to identify graffiti on a variety of materials, from wood to dirty cement. Officers can then enter queries into GARI to check for similar images logged within a certain area and derive local gang affiliation, territorial disputes, and even the identity of the members who left their mark.īecause GARI is so new, Schafer and his team must manually tag many of the submitted photos to build up the app’s information bank. The software also scans the graffiti for distinguishing features, including color and shape. An officer can take a photo and submit it to an app, which tags it with location, date, and time. GARI connects officers in the field with a searchable database of graffiti information and images snapped by cell phones and digital cameras. A new software program called GARI (Gang Graffiti Automatic Recognition and Interpretation) is now helping Schafer and other investigators decipher the scrawlings, monitor gang activity, and fight crime. ![]() “Graffiti is a big part of how gangs tell their story and pick their turf,” says Steven Schafer, a detective in the criminal gang unit of the Indianapolis Metropolitan Police Department. To mark their territory and warn off rivals, 21st-century gangsters still depend on the street language of graffiti. ![]()
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