AIRA by Aimetis and the Limitations of Human Monitoring
Aimetis :: AIRA Home:
Another firm selling smart cameras. This one is from Canada. It does have nice page on the limitations of conventional video monitoring:
No matter how highly trained or how dedicated a human observer, it is impossible to provide full attention to more than one or two things at a time; and even then, only for a few minutes at a time. A Harvard University study concluded that humans are surprisingly unaware of the details of their environment, and often do not detect large changes to objects or scenes (‘change blindness’). Furthermore, without attention, humans may not even perceive objects (‘inattentional blindness’). The Harvard experiment results showed that 50% of people counting the passes made between two basketball teams will not notice a gorilla walk into the middle of the viewing area, beat its chest, and walk out. In another study, military experiments demonstrated that after 12 minutes of continuous viewing of 2 or more sequencing monitors, an operator will miss up to 45% of all scene activity. After approximately 22 minutes, an operator will miss up to 95% of scene activity. The conclusion is clear – humans do not reliably detect security threats, whether watching live video or reviewing archived data, resulting in false conclusions that nothing occurred when, in fact, something did (referred to as ‘false negatives’).
Recent Comments