Abstract: An augmented reality (AR) device is provided. The AR device includes a display module configured to output light of a virtual image, a waveguide configured to transmit the output light of the virtual image to an eye of a user and to pass external light therethrough, a gaze tracking sensor configured to obtain information on the eye of the user, the information including a pupil size, a memory storing instructions, and a processor configured to execute the instructions to control the display module to adjust a brightness of the light of the virtual image based on the pupil size.

Abstract: An image processing device is provided. The image processing device includes a camera configured to obtain a stereo image, an eye-tracking sensor configured to obtain gaze information of a user, a memory storing one or more instructions, and at least one processor. The at least one processor is configured to, by executing one or more instructions, extract feature points from the stereo image and generate gaze coordinate information in which gaze coordinates corresponding to the gaze information of the user are accumulated on the stereo image, and perform stereo matching based on the feature points and the gaze coordinate information.

Abstract: An augmented reality (AR) device is provided. The AR device includes a display module configured to output light of a virtual image, a waveguide configured to transmit the output light of the virtual image to an eye of a user and to pass external light therethrough, a gaze tracking sensor configured to obtain information on the eye of the user, the information including a pupil size, a memory storing instructions, and a processor configured to execute the instructions to control the display module to adjust a brightness of the light of the virtual image based on the pupil size.