Patent ID: 7847819
Filing Date: 2010-12-07
Classification: H04N

Abstract:
1. A measurement system for evaluating moving image quality of displays based on the motion of a measuring pattern displayed on a screen of a display device subject to evaluation, the system comprising: a rotatable mirror; an image sensor for taking an image of the screen through the mirror; a rotation drive section for rotationally driving the mirror; a photodetector having a detection range covering a part of the screen; and a control section connected to the photodetector and the rotation drive section, wherein the control section outputs a trigger signal to the rotation drive section for triggering the rotation drive section to rotate based on a detection signal from the photodetector outputted at a time when the photodetector detects the measuring pattern displayed on the screen, and the control section outputs a control signal to the rotation drive section so that the mirror rotates to follow the motion of the measuring pattern.