1. An on-vehicle emergency call apparatus comprising: a camera capturing an image of a subject within an interior of a vehicle; a capturing controller controlling the camera; a transmitter transmitting an image capturing result to an emergency information center, wherein the capturing controller controls the camera to capture images while switching alternately between an instant capturing shutter speed for capturing a plurality of instant images of the subject and a translocation capturing shutter speed for capturing a plurality of translocation images of the subject, in which instant capturing shutter speed and the translocation capturing shutter speed are different from each other; and a processing unit configured to select at least one instant image captured by the camera and at least one translocation image captured by the camera, the processing unit also being configured to superimpose the at least one instant image and the at least one translocation image to produce the image capturing result, wherein the processing unit transmits the image capturing result to the transmitter.