A checkout article recognition device, comprising: an image interface configured to acquire a captured image; a distance information interface configured to acquire distance information from a distance sensor, the distance sensor including a light source and a sensor for detecting reflected light rays from a target object; a support configured to support an article at a height equal to or greater than a minimum discrimination distance of the distance sensor from a reference plane of the distance sensor; and a processor configured to: acquire the captured image of the article supported by the support through the image interface; acquire the distance information measured by the distance sensor toward the reference plane through the distance information interface; extract an area of the article from the captured image, wherein the area has a height equal to or greater than the minimum discrimination distance from the reference plane, and wherein the area is an article area of the captured image; and recognize the article from a portion of the captured image corresponding to the article area extracted based on the distance information, characterized in that the support is an installation base on which the article is placed, having a thickness equal to or greater than the minimum discrimination distance and formed from a material which transmits light rays from the distance sensor, and the reference plane is set to a plane obtained by expanding a bottom surface of the installation base, or a plane which is located between an upper surface and a bottom surface of the installation base and apart from the upper surface of the installation base by a distance equal to or greater than the minimum discrimination distance. an image interface configured to acquire a captured image; a distance information interface configured to acquire distance information from a distance sensor, the distance sensor including a light source and a sensor for detecting reflected light rays from a target object; a support configured to support an article at a height equal to or greater than a minimum discrimination distance of the distance sensor from a reference plane of the distance sensor; and a processor configured to: acquire the captured image of the article supported by the support through the image interface; acquire the distance information measured by the distance sensor toward the reference plane through the distance information interface; extract an area of the article from the captured image, wherein the area has a height equal to or greater than the minimum discrimination distance from the reference plane, and wherein the area is an article area of the captured image; and recognize the article from a portion of the captured image corresponding to the article area extracted based on the distance information, characterized in that the support is an installation base on which the article is placed, having a thickness equal to or greater than the minimum discrimination distance and formed from a material which transmits light rays from the distance sensor, and the reference plane is set to a plane obtained by expanding a bottom surface of the installation base, or a plane which is located between an upper surface and a bottom surface of the installation base and apart from the upper surface of the installation base by a distance equal to or greater than the minimum discrimination distance. acquire the captured image of the article supported by the support through the image interface; acquire the distance information measured by the distance sensor toward the reference plane through the distance information interface; extract an area of the article from the captured image, wherein the area has a height equal to or greater than the minimum discrimination distance from the reference plane, and wherein the area is an article area of the captured image; and recognize the article from a portion of the captured image corresponding to the article area extracted based on the distance information, characterized in that the support is an installation base on which the article is placed, having a thickness equal to or greater than the minimum discrimination distance and formed from a material which transmits light rays from the distance sensor, and the reference plane is set to a plane obtained by expanding a bottom surface of the installation base, or a plane which is located between an upper surface and a bottom surface of the installation base and apart from the upper surface of the installation base by a distance equal to or greater than the minimum discrimination distance.