| 摘要 |
A method of extending the dynamic range of an imaging sensor including providing an image sensor having fast and slow pixels, wherein the fast pixels have a higher response to light exposure than the slow pixels; setting the dynamic range of the fast and slow pixels such that over an intermediate exposure range both fast and slow pixels produce an accurate representation of scene exposure but have different associated gains, while over a lower exposure range slow pixels produce a noise dominated signal, and over a higher exposure range fast pixels produce a saturated signal; and extending the dynamic range of the image sensor by adaptively adjusting higher exposure signals produced by fast pixels in response to higher exposure signals produced by slow pixels and by adaptively adjusting lower exposure signals produced by slow pixels in response to lower exposure signals produced by fast pixels.
|
