Storage medium having image recognition program stored therein, image recognition apparatus, image recognition system, and image recognition method

摘要

A game apparatus obtains a captured image captured by a camera. First, the game apparatus detects an object area of the captured image that includes a predetermined image object based on pixel values obtained at a first pitch across the captured image. Then, the game apparatus detects a predetermined image object from an image of the object area based on pixel values obtained at a second pitch smaller than the first pitch across the object area of the captured image.

主权项

1. A non-transitory computer-readable storage medium having stored therein an image recognition program to be executed by a computer of an information processing apparatus for detecting a predetermined image object included in a captured image captured by an imager, the image recognition program instructing the computer to execute:
obtaining the captured image captured by the imager; detecting an object area of the captured image that includes the predetermined image object based on pixel values obtained at a first precision across the captured image, the predetermined image object including a graphic pattern with a plurality of inner graphic patterns drawn therein; if the detection of the object area has succeeded, detecting the plurality of inner graphic patterns included in the predetermined image object that is present within the detected object area of the captured image based on pixel values obtained at a second precision that is higher than the first precision across the detected object area of the captured image, where the pixel values are obtained at the second precision by using the detected object area; and if the detection of the object area has failed, detection of the predetermined image object is not performed at the second precision, wherein the detected object area is a portion of the captured image that is smaller than the captured image and includes the predetermined image object.