Bad Pixel Detection and Correction

A device for performing bad pixel classification for an image sensor having a plurality of sensing elements, comprising:

• a voting module configured to:
• receive a plurality of images captured using the image sensor;
• determine based on a pre-determined criterion, using an image of the plurality of images and a threshold value selected from one or more pre-determined threshold values, whether a sensing element in the image sensor is defective to generate a vote, wherein a threshold parameter associated with the pre-determined criterion is set to the threshold value;
• tally the vote to generate a voting count by performing iterations of the determining step using different images of the plurality of images and different threshold values of the one or more pre-determined threshold values;
• and
• classify the sensing element as a bad pixel if the voting count exceeds a pre-determined classification threshold;
• and
• a classification module operatively coupled to the voting module and configured to:
• compare the voting count to a pre-determined classification threshold;
• and
• classify the sensing element as a bad pixel if the voting count exceeds the pre-determined classification threshold.
• classifying the sensing element as a bad pixel if the voting count exceeds a pre-determined classification threshold.

A system, comprising:

• an image sensor having a plurality of sensing elements;
• a voting module configured to:
• receive a plurality of images captured using the image sensor;
• determine based on a pre-determined criterion, using an image of the plurality of images and a threshold value selected from one or more pre-determined threshold values, whether a sensing element in the image sensor is defective to generate a vote, wherein a threshold parameter associated with the pre-determined criterion is set to the threshold value;
• tally the vote to generate a voting count by performing iterations of the determining step using different images of the plurality of images and different threshold values of the one or more pre-determined threshold values;
• and
• classify the sensing element as a bad pixel if the voting count exceeds a pre-determined classification threshold;
• and
• a classification module operatively coupled to the voting module and configured to:
• compare the voting count to a pre-determined classification threshold;
• and
• classify the sensing element as defective if the voting count exceeds the pre-determined classification threshold.

A computer readable medium, embodying instructions executable by the computer to perform bad pixel classification for an image sensor having a plurality of sensing elements, the instructions comprising functionality for:

• capturing a plurality of images using the image sensor;
• determining, using an image of the plurality of images and a threshold value selected from one or more pre-determined threshold values, whether a sensing element in the image sensor is defective, based on a pre-determined criterion, to generate a vote, wherein a threshold parameter associated with the pre-determined criterion is set to the threshold value;
• tallying the vote to generate a voting count by performing iterations of the determining step using different images of the plurality of images and different threshold values of the one or more pre-determined threshold values;
• and
• classifying the sensing element as a bad pixel if the voting count exceeds a pre-determined classification threshold.