Patent ID: 8879787

Claim:
An information processing device comprising: an image capturing device configured to capture a movement of an object within a moving image, wherein the object is a person; an input value acquisition unit configured to estimate an amount of movement of the object with respect to the image capturing device from a reference position in a three-dimensional space defined in the vertical, horizontal, and depth directions, in the moving image by referring to the head and shoulder contours of the person which is approximated by a Greek ohm-shaped curve, wherein the image of the person derived from the ohm-shaped curve is subjected to an edge extracting process, wherein one or more edges near the curve are detected so as to obtain parameters that substantially match the contours of the person and an edge image is thereby obtained, wherein the ohm-shaped curve may be translated, expanded, contracted, or rotated by changing the parameters defining the curve, wherein said edge extracting process is repeated for each frame, so that tracking of the person proceeds, wherein movement of the object is determined based, at least in part, on its horizontal and vertical coordinates relative to a reference position in a two-dimensional plane, as viewed from above the image capturing device, the vertical direction representing depth from the perspective of the image capturing device, wherein the vertical distance from the reference position is determined by the object's detected change in size relative to its size at the reference position; and an output data generation unit configured to make a change in a performing process according to the amount of movement in the three-dimensional space that is estimated by the input value acquisition unit and to generate output data accordingly.