Patent Document ID: 9754189
Application ID: 14879532
Patent Flag: 1

Claim One:
1. A detection device comprising: a processor comprising hardware, wherein the processor is configured to: acquire an acquired image of an object, wherein the acquired image has been captured by an image sensor; acquire distance information based on a distance from the image sensor to the object when the image sensor captured the acquired image; calculate a feature quantity relating to the object from an area of the acquired image; access a memory configured to store a learning feature quantity, wherein the learning feature quantity corresponds to each of a plurality of distance ranges, and wherein the learning feature quantity is determined by a learning process using images captured in the each of the plurality of distance ranges; and perform a detection process to determine whether the area of the acquired image is a target area, wherein the detection process comprises: determining a distance range from the plurality of distance ranges to which the feature quantity belongs based on the distance information; and determining whether the area of the acquired image is the target area based on: the learning feature quantity stored in the memory corresponding to the distance range determined; and the feature quantity.