Cabin camera is to monitor abnormal activities inside of the vihicle. The most popular aplication will be school bus and any public transportation. Rear Camera can capture valuable information for driver when shifting to reverse gear, it is also the most common and proctical application for the Car Rear Vision System. By installing cameras at sides of a vehicle, the driver will be able to see the side views when switching directions. This will decrease blind-spots when making a turn and increase safety tremendously.