Mobile communication terminal equipped with digital image capturing module and method of capturing digital image
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United States of America Patent
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N/A
Issued Date -
Apr 6, 2006
app pub date -
Dec 29, 2004
filing date -
Oct 1, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed are a mobile communication terminal equipped with a digital image capturing module and a method of capturing a digital image. The mobile communication terminal includes: a camera module for acquiring digital image data; a storage unit for storing the acquired digital image data; a display unit for displaying the acquired digital image data; and a control module for calculating mean luminance values of frames acquired during a predetermined time, calculating an image's luminance value by averaging the mean luminance values of all the frames except frames having significantly high deviations in mean luminance, and transmitting to the camera module a control instruction for controlling an exposure time based on the image's luminance value at regular intervals. The method includes the steps of: converting an analog image signal captured by the image pickup unit into digital image data; calculating a luminance value of the image based on the digital image data; and controlling an exposure time of the image pickup unit according to the calculated luminance value.
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