A camera system includes an image capturing device configured to capture a rear image of a vehicle, a sensor configured to measure a speed of the vehicle, a direction, a height, and an inclination angle of the image capturing device, an image processor configured to convert the rear image by using information measured by the sensor, an attachment mount that is attachable to various locations connected to the vehicle, and a communication device configured to transmit the converted rear image to an audio video navigation (AVN) system of the vehicle.