Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2007-10-16
2007-10-16
Vu, Ngoc-Yen (Department: 2622)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S273000, C382S162000
Reexamination Certificate
active
10246124
ABSTRACT:
A bad pixel correction (BPC) algorithm that can be implemented on the image sensor chip is provided for detecting and correcting defective pixels in a digital color image sensor. Gradients of neighboring pixels in at least one other color plane than the color plane of a current pixel and a range of sensor values from neighboring pixels in the same color plane as the current pixel are determined. If the sensor value of the current pixel is outside of the range by a threshold amount that is calculated using one or more of the gradients, the current pixel is determined to be a defective pixel, and replaced using the sensor values of the neighboring pixels in the same color plane.
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Kakarala Ramakrishna
Stanback John H.
Ying Bond Yu-Pong
Zhang Xuemei
Quiett Carramah J
RatnerPrestia
Vu Ngoc-Yen
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