Sample images:
# Visible Light Window through Window: http://imgur.com/F1kgPDT
# IR Light Window through Window (wrong behavior): http://imgur.com/5SF0PjT
# Visible Light People in Vehicles: http://imgur.com/EuvTeIi
# IR Light People in Vehicles (wrong behavior): http://imgur.com/dOcCBoA
# Visible Light Person through Scope: http://imgur.com/xilMZUS
# IR Light Person through Scope (wrong behavior: http://imgur.com/MUmh1tw
# Visible Light Person through Window: http://imgur.com/MUmh1tw
# IR Light Person through Window (right behavior -except the corner as demonstrated above): http://imgur.com/BuzPD0W