To appropriately estimate the position and deviation width of a moving body and to calculate the moving speed of the moving body.

A digital camera 100 comprises: an imaging part 1 used according to the kind of sports for picking up images including a ball moving at a high speed and outputting image information; and a CPU 71 for estimating the deviation width range of the ball in the image on the basis of the estimated moving speed range of the ball in a sports scene, also analyzing the image information outputted from the imaging part 1 on the basis of the deviation width range and estimating the position of the ball in the image and its deviation width.