Method and apparatus for increasing dynamic range of image by using electronic shutter

摘要

A method and apparatus for increasing a dynamic range of an image by using a first electronic shutter and a second electronic shutter of a camera is provided. The method includes initiating exposure of an image sensor by moving a first electronic front curtain according to a first control pulse signal of the first electronic shutter; moving a second electronic front curtain with respect to at least one pixel of the image sensor according to a second control pulse signal of the second electronic shutter; blocking the exposure of the image sensor by moving a mechanical rear curtain included in the camera; and acquiring, after blocking the exposure, a long exposure image using the first electronic front curtain and a short exposure image using the second electronic front curtain.

主权项

1. A method for increasing a dynamic range of an image by using a first electronic shutter and a second electronic shutter of a camera, the method comprising:
initiating exposure of an image sensor by moving a first electronic front curtain according to a first control pulse signal of the first electronic shutter; moving a second electronic front curtain with respect to at least one pixel of the image sensor according to a second control pulse signal of the second electronic shutter during the exposure of the image sensor by the movement of the first electronic front curtain; blocking the exposure of the image sensor by moving a mechanical rear curtain included in the camera; and acquiring, after blocking the exposure, a long exposure image initiated by the movement of the first electronic front curtain by using the first electronic front curtain and a short exposure image using the second electronic front curtain, wherein the second control pulse signal is applied to one of odd and even lines of the image sensor.