CAMERA DEVICE, IMAGE PROCESSING SYSTEM, IMAGE PROCESSING METHOD AND IMAGE PROCESSING PROGRAM

A camera device includes an imaging unit generating an imaging area image in which an imaging area is captured from above, and a display-image generation unit generating a display image of an imaging object moving in the imaging area by use of an clipped image clipped from the imaging area image. In this case, an clipping reference position P corresponding to the imaging object in the imaging area image is determined, and a reference distance r between an imaging reference position O corresponding to the imaging unit and the clipping reference position P in the imaging area image is calculated. When the reference distance r is short, a rotation angle thetaNEW for rotating the clipped image in generating the display image is calculated based on a reference angle theta corresponding to an inclination of the imaging object in the imaging area image and the reference distance r.