1. An image processing apparatus comprising: scene change detection means configured to detect a scene change in a motion picture; object detection means configured to detect a predefined object that is contained as a subject in still pictures constituting the motion picture; and determining means configured to determine, in accordance with the result of a detection operation that is performed by the object detection means in relation to still pictures constituting a predefined scene between a scene change detected by the scene change detection means and a chronologically adjacent scene change, whether the predefined scene contains a still picture containing the predefined object as a subject, wherein the object detection means further detects information that represents features of the predefined object detected from still pictures, and wherein the determining means achieves chronological pattern recognition of the information representing the features of the predefined object detected by the object detection means to determine whether the predefined scene contains a still picture containing the predefined object as a subject, said apparatus further comprising: storage means configured to store a first model that is derived from a result of the same detection operation that is performed by the object detection means in relation to still pictures constituting a scene containing a still picture containing the predefined object as a subject and will be used as recognition information for pattern recognition by the determining means, wherein the storage means further stores a second model that is derived from a result of the same detection operation that is performed by the object detection means in relation to still pictures constituting a scene containing a still picture that does not contain the predefined object as a subject; and wherein the determining means determines, in accordance with a score obtained from the first model as a result of a detection operation performed by the object detection means and a score obtained from the second model, whether the predefined scene contains a still picture containing the predefined object as a subject.