Patent ID: 8873805

Claim:
A trajectory interpolation apparatus, comprising: a first storage part configured to store a first time and first location information indicating a first location of a movable body at the first time, and to store a second time and second location information indicating a second location of the movable body at the second time; a second storage part configured to store time and speed of the movable body at the time; and a calculation part configured to estimate the speed of the movable body between times which the second storage part stores, based on a relationship between the time and the speed which are stored in the second storage part, to specify a third time used to determine a point to interpolate for each of points based on information for specifying a count of the points which interpolate between the first location of the movable body at the first time and the second location of the movable body at the second time, and to calculate a first moving distance from the first time to the third time and a second moving distance from the third time used to acquire the first moving distance to the second time, based on estimated speed of the movable body; and a determination part configured to determine, as a point to interpolate, one of intersection points of a first circle and a second circle, the first circle in which a first location indicated by the first location information is set to be a first center, and the second circle in which a second location indicated by the second location information is set to be a second center.