Compensating for sensor saturation and microlens modulation during light-field image processing

摘要

According to various embodiments, the system and method of the present invention process light-field image data so as to reduce color artifacts, reduce projection artifacts, and/or increase dynamic range. These techniques operate, for example, on image data affected by sensor saturation and/or microlens modulation. Flat-field images are captured and converted to modulation images, and then applied on a per-pixel basis, according to techniques described herein.

主权项

1. In a light-field image capture device having a plurality of microlenses, a method for compensating for sensor saturation and microlens modulation, comprising:
in a processor, determining a flat-field response contour for each of at least one region of an image sensor; in the processor, generating a modulation image based on the at least one flat-field response contour; in the processor, generating a demodulation image from the modulation image; in the processor, receiving light-field image data; in the processor, applying the generated demodulation image to the received light-field image data to generate a demodulated light-field image; and outputting the light-field demodulated image on a display device.