Information processing device, information processing method, computer program product, and welding system

An information processing method executed by an information processing device comprising one or more hardware processors, the information processing method comprising:

• generating at least one piece of second supervised data by using at least one piece of first supervised data including at least one welding image capturing a welding target, and true values of positions of a plurality of keypoints within the welding image, the second supervised data including a transformed image obtained by transforming the welding image so as to change relative positions of the keypoints, and true values of changed positions;
• and
• learning a detection model by using the first supervised data and the second supervised data, the detection model receiving input of the welding image and outputting the positions of the keypoints, wherein
• the transformed image is an image in which the welding image is divided into two partial images by a line passing through a midpoint of the keypoints, and the two partial images are relatively moved to be shifted in a direction of the line.

A computer program product having a non-transitory computer readable medium including programmed instructions, wherein the instructions, when executed by a computer, cause the computer to perform:

• generating at least one piece of second supervised data by using at least one piece of first supervised data including at least one welding image capturing a welding target, and true values of positions of a plurality of keypoints within the welding image, the second supervised data including a transformed image obtained by transforming the welding image so as to change relative positions of the keypoints, and true values of changed positions;
• and
• learning a detection model by using the first supervised data and the second supervised data, the detection model receiving input of the welding image and outputting the positions of the keypoints, wherein
• the transformed image is an image in which the welding image is divided into two partial images by a line passing through a midpoint of the keypoints, and the two partial images are relatively moved to be shifted in a direction of the line.

A welding system comprising:

• an information processing device;
• and
• a welding device, wherein
• the information processing device comprises:
• one or more hardware processors configured to:
• generate at least one piece of second supervised data by using at least one piece of first supervised data including at least one welding image capturing a welding target, and true values of positions of a plurality of keypoints within the welding image, the second supervised data including a transformed image obtained by transforming the welding image so as to change relative positions of the keypoints, and true values of changed positions;
• and
• learn a detection model by using the first supervised data and the second supervised data, the detection model receiving input of the welding image and outputting the positions of the keypoints, and
• the welding device comprises:
• an imaging device that captures the welding image;
• and
• a controller that controls welding by using the positions of the keypoints output by a trained detection model, wherein
• the transformed image is an image in which the welding image is divided into two partial images by a line passing through a midpoint of the keypoints, and the two partial images are relatively moved to be shifted in a direction of the line.