Gaze-directed denoising in multi-camera systems

An imaging system comprising:

• a first camera and a second camera that are to be employed to simultaneously capture a first image and a second image, respectively, wherein an illumination parameter varies spatially across a first field of view (FOV) of the first camera, and across a second FOV of the second camera, the illumination parameter being any one of:
• (i) a ratio of a per-pixel area (A) to pixels per degree (PPD),
• (ii) a ratio of a multiplication product of the per-pixel area and a relative illumination (A×RI) to the PPD;
• and
• at least one processor configured to:
• detect whether the first camera has a first value of the illumination parameter in at least one first region of the first FOV, while the second camera has, in at least one corresponding region of the second FOV, a second value of the illumination parameter that is greater than the first value;
• and
• when it is detected that the first camera has the first value of the illumination parameter in the at least one first region, while the second camera has the second value of the illumination parameter that is greater than the first value in the at least one corresponding region, apply a denoising technique on at least one first image segment of the first image that represents the at least one first region of the first FOV, based on at least one corresponding image segment of the second image that represents the at least one corresponding region of the second FOV.