Patent ID: 11954942
Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A human behavior recognition method using hierarchical class learning considering safety performed by a processor, the human behavior recognition method comprising:
a step of obtaining a plurality of images each comprising a subject;
a behavior class defining step of forming a plurality of behavior classes by sub-setting the plurality of images each comprising the subject according to pre-designated behaviors and assigning a behavior label to the plurality of images, wherein each behavior class comprises images with same or similar behaviors of the subject, and a same behavior label is assigned to images included in a same behavior class;
a safety class defining step of calculating a safety index for the plurality of images, forming a plurality of safety classes by sub-setting the plurality of images based on the safety index, and additionally assigning a safety label to the plurality of images, wherein an object different from the subject in the image is recognized and the safety index is evaluated based on a pose of the recognized object with respect to the subject; and
a training step of training a behavior recognition model by using the plurality of images defined as hierarchical classes by assigning the behavior label and the safety label as training images.