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COORDINATE DETECTION DEVICE, ELECTRONIC BLACKBOARD, IMAGE DISPLAY SYSTEM, AND COORDINATE DETECTION METHOD

机译:坐标检测装置,电子黑板,图像显示系统和坐标检测方法

摘要

A coordinate detection apparatus 24 for detecting coordinates of a light-emitting pointer 100 and a non-light-emitting pointer 200 on a display surface 22, includes an imaging unit 410 configured to capture an image of at least one of the light-emitting pointer and the non-light-emitting pointer in a predetermined range from the display surface; and a detection unit 350 configured to detect a quantity of light generated by the light-emitting pointer emitting light in the predetermined range so as to detect the coordinates of the light-emitting pointer, and to detect a quantity of light emitted on the display surface and cut off by the non-light-emitting pointer in the predetermined range so as to detect the coordinates of the non-light-emitting pointer.
机译:用于检测显示表面22上的发光指示器100和非发光指示器200的坐标的坐标检测装置24包括成像单元410,该成像单元410被构造成捕获发光指示器中的至少一个的图像。非发光指示器位于距显示面预定范围内。检测单元350,其用于检测由所述发光指示器发出的预定范围内的光的发光量,以检测所述发光指示器的坐标,并检测在所述显示面上发光的光量。所述非发光指示器在预定范围内截止,以检测所述非发光指示器的坐标。

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