Measurement system for evaluating moving image quality of...

Details Measurement system for evaluating moving image quality of... Measurement system for evaluating moving image quality of...

2003-06-06

2010-12-07

Philippe, Gims S (Department: 2621)

Television

Special applications

Flaw detector

C356S005020

Reexamination Certificate

active

07847819

ABSTRACT:
A system is disclosed, which comprises a rotatable mirror2, a camera3for taking an image of a screen5through the mirror2, a photodetector4having a detection range covering a part of the screen5, and a control section6. At a time when a measuring pattern included in a moving image displayed on the screen5is detected by the photodetector4, a detection signal is outputted from the photodetector4. Based on the detection signal, the control section triggers the mirror2to rotate, and after the mirror2starts rotating, the control section6controls so that the mirror2rotates to follow the motion of the measuring pattern. It is possible to obtain images that trace the motion of the moving image on a detector plane of the camera3without resorting to electrical synchronization of the rotation of the mirror and moving image signals, and to measure the moving image quality of displays with a simple structure.

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