12. A feature information collecting method, comprising: acquiring vehicle position information that represents a current position of a vehicle; acquiring image information for a vicinity of the vehicle; carrying out image recognition processing on recognition target objects that are included in the image information; storing recognition information that represents a result of the image recognition of the recognition target objects in association with information for the recognition position of the recognition target objects, the recognition position determined based on the vehicle position information; and extracting, as learned features, recognition target objects that can be repeatedly recognized by image recognition based on a plurality of sets of recognition information related to the same position, the plurality of sets of recognition information being stored due to the image information for the same position being recognized a plurality of times by image recognition; wherein the recognition information is a characteristic amount represented by at least one of a noise amount and an amount of extractions of edge included in the image information.
12. A feature information collecting method, comprising: acquiring vehicle position information that represents a current position of a vehicle; acquiring image information for a vicinity of the vehicle; carrying out image recognition processing on recognition target objects that are included in the image information; storing recognition information that represents a result of the image recognition of the recognition target objects in association with information for the recognition position of the recognition target objects, the recognition position determined based on the vehicle position information; and extracting, as learned features, recognition target objects that can be repeatedly recognized by image recognition based on a plurality of sets of recognition information related to the same position, the plurality of sets of recognition information being stored due to the image information for the same position being recognized a plurality of times by image recognition; wherein the recognition information is a characteristic amount represented by at least one of a noise amount and an amount of extractions of edge included in the image information. 13. The feature information collecting method according to claim 12 , further comprising: storing the recognition results for the recognition target objects in association with information about the recognition position, the recognition information including a distribution of the recognition results for each target object; and extracting recognition target objects at a positions where a peak in the distribution is present as the learned features, each peak representing the position information for each extracted learned feature.