Abstract: The present disclosure discloses a wearable device and a method of outputting content thereof. According to one embodiment, the wearable device for outputting the content according to the present invention includes a sensor, a display, and a processor configured to: determine an output mode of the wearable device based on tracking information detected by the sensor, and cause the display to display content in a playback window of a screen, wherein: the playback window corresponds to an entire portion of the display when the output mode is an active mode, and the playback window corresponds to a portion of the display when the output mode is an inactive mode, wherein the portion of the display is less than the entire portion of the display.

Abstract: The present disclosure discloses a wearable device and a method of outputting content thereof. According to one embodiment, the wearable device for outputting the content according to the present invention includes a sensor, a display, and a processor configured to: determine an output mode of the wearable device based on tracking information detected by the sensor, and cause the display to display content in a playback window of a screen, wherein: the playback window corresponds to an entire portion of the display when the output mode is an active mode, and the playback window corresponds to a portion of the display when the output mode is an inactive mode, wherein the portion of the display is less than the entire portion of the display.

Abstract: A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.

Abstract: A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.