Method of controlling exposure time of high dynamic range image

A method of controlling exposure time of high dynamic range image, including: continuously generating a firsthigh dynamic range image with a first exposure time ratio and a secondhigh dynamic range image with a second exposure time ratio larger than the first exposure time ratio; performing an image...

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Bibliographische Detailangaben
Hauptverfasser:	LIN, KENG-SHENG, YANG, WENU, CHENG, CHIHI, LI, CHUNG-TE, CHEN, HSIN-YU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:	A method of controlling exposure time of high dynamic range image, including: continuously generating a firsthigh dynamic range image with a first exposure time ratio and a secondhigh dynamic range image with a second exposure time ratio larger than the first exposure time ratio; performing an image quality evaluation both on the firsthigh dynamic range image and the secondhigh dynamic range image, and obtaining a first image quality and a second image quality respectively; determining ifthe second image quality is better than the first image quality, if yes, generating a third high dynamic range image with a third exposure time ratio larger than the second exposure time ratio, if not, generating the third high dynamic range image with the first exposure time ratio and setting the first exposure time ratio as the best exposure time ratio.