How do you think the new GigE standards will influence the machine vision industry?
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By Samuel Yu
• What if the camera is dropped or runs out of batteries at the moment of capture? Will the image be corrupted?
Albeit cumbersome, there are chain-of-custody processes in place today to answer some of these questions. But given the wide availability of photo-editing software and the ongoing threats of lawsuits, these are just a few of the issues that real life CSI and police detectives have to deal with on an everyday basis. Could there be a solution which alleviates these concerns and let the police go back to focusing on doing “real police work?”
“Tamper-proof storage protects law enforcement officers by guaranteeing the legitimacy of evidence that we collect and deliver to the district attorney,” said Jim Shirk, Captain, Twin Cities Police Authority, (Larkspur, Calif.). “An unalterable and highly reliable archive eliminates the chance of accidentally deleting a crucial file, and ensures that evidence is accessible over a long period of time. Adopting this type of storage as our standard archiving media is a necessary step in maintaining a modern and effective police force.”
STORAGE SOLUTIONS FOR POLICE
There are certainly many storage solutions out there for CSI photographers to choose from, ranging from the type of media to use at the crime scene, to the type of long-term archive storage to use for data backup at the lab. For many years, traditional analog film was the solution of choice. Film provides a hard negative as an original, and when stored in a controlled environment (NOT the shoebox in your attic), has been shown to provide a long archival life.
More recently, digital photography came along and revolutionized imaging, eliminating the cumbersome and time-consuming process of loading film, shooting pictures and getting them developed. Given these advantages, departments have eagerly traded boxes full of negatives for hard drives full of files, but the critical challenge of preserving photographic documentation remains. Unlike analog film, there are questions that naturally come up when the only original is in digital format: is it possible that someone could have edited the image in a photo editing software program, or could someone have just deleted an important picture altogether?