| 摘要 |
PROBLEM TO BE SOLVED: To provide an equipment detecting a smear leak in an image sensor and indicating its existence. SOLUTION: A smear detection circuit in the analog front end (AFE) of a digital camera detects the time when the black domain pixel value received from the image sensor are indicative of smear leakage. When a sensor coupled to a storage element is exposed to a bright light source, storage element overload can cause a leakage charge to leak from the storage element to other storage elements along a transfer line. A smear detection circuit identifies the transfer line exhibiting a smear leakage and excludes pixel values from storage elements along that transfer line from the calculation of a black level value used to calibrate color pixel values. The digital camera displays the smear icon indicating smear leakage in a digital image that is to be taken. COPYRIGHT: (C)2006,JPO&NCIPI
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