Article inspection device

An article inspection device comprising:

• an image storage unit that stores an inspection image (Dpx) of a transported inspection object (W) obtained by imaging the inspection object;
• a determination unit that determines a quality state of the inspection object for the inspection image stored in the image storage unit by obtaining an inference value related to the quality state of the inspection object for each unit region of a predetermined number of pixels of the inspection image and comparing the inference value with a threshold value (Thr) set in advance using a learning model which is trained in advance using an image dataset of the same imaging condition as the inspection object;
• an inference value image generation unit that generates an inference value image (Dcf) which is a two-dimensional shade image obtained using the inference value corresponding to the inspection image as a density;
• a projection image generation unit that generates a projection image (Dpr) in a bar graph form by projecting a maximum value (Cpv) of the density of each of a plurality of line image regions (xpi) adjacent to each other in a direction of one coordinate axis (x) and present in a direction of another coordinate axis (y) in the inference value image to a corresponding line image region (xpi′) on the one coordinate axis with a length corresponding to the maximum value of the density;
• and
• a display control unit that displays the projection image on a display unit by adding a line corresponding to the threshold value on the projection image.