Abstract:
According to an aspect of the present invention, a method for detecting an input position on a display unit comprises the steps of: acquiring a surface image of the display unit; detecting main lines of a matrix in the surface image; detecting a brightness graph indicating brightness values of pixel blocks with respect to axial directions parallel with the respective main lines and vertically spaced apart from each other at regular intervals in each main line; detecting minimum points corresponding to sub lines of the matrix from the brightness graph; selecting any of the sub lines based on the detected minimum points; and extracting a unit input area for determining an input position pointed by an input device on the display unit by using the positions of the selected sub line.
Abstract:
본 발명의 일 측면에 따른 디스플레이 유닛 상의 사용자 입력 위치를 검출하는 방법은, 사용자 입력에 대응하는 디스플레이 유닛의 표면 일부에 대한 복수의 이미지를 획득하는 과정과; 상기 복수의 이미지 중의 하나를 선택하는 과정과; 상기 선택된 이미지로부터 단위 입력 영역을 추출하는 단계와; 상기 단위 입력 영역 내 위치 식별자를 인식하는 단계와; 상기 위치 식별자에 근거하여 상기 디스플레이 유닛 상의 상기 사용자 입력의 위치를 결정하는 단계를 포함한다.
Abstract:
A method of detecting a user input position on a display unit according to an aspect of the present invention comprises the steps of: acquiring a surface image of the display unit corresponding to a user input; detecting a brightness graph indicating brightness values of pixel blocks for a first axis direction perpendicular to one line of a matrix in the surface image; extending the brightness graph in a brightness axis direction; detecting smallest points corresponding to lines of the matrix in the extended brightness graph; extracting a unit input area from the surface image based on the detected smallest points; recognizing a position identifier in the unit input area; and determining a position of the user input on the display unit based on the position identifier.
Abstract:
The present invention relates to a display device having a pattern, which comprises: a plurality of color filters corresponding to at least one sub-pixel constituting pixels of the display device; and a black matrix formed between the plurality of color filters. The one or more sub-pixels includes: at least one position mark for representing absolute positions of each of the pixels of the display device; and error correction marks for correcting errors when detecting the at least one position mark.
Abstract:
PURPOSE: A dust sensing unit and a robot cleaner having the same are provided to expand a cleaning range using a side brush and to control the degree of cleaning depending on the amount of dust. CONSTITUTION: A robot cleaner having a dust sensing unit comprises a main body, a drive unit, a drum brush unit, a dust container(60), a dust sensing unit(70), and a control unit. The drive unit powers the main body. The drum brush unit brushes dust using a brush and a rotary drum. The dust container stores the brushed dust. The dust sensing unit senses whether dust flows into the dust container. The control unit controls the dust container based on the results sensed from the dust sensing unit.