In this paper, we propose a new camera and a new imaging technique for obtaining unblurred high-dynamic-range (HDR) images. In this camera, we achieve pixelwise control of exposure parameters by using a liquid crystal on silicon. In particular, we can control not only the amount of exposure but also the exposure time pixel by pixel. We call the imaging as variable exposure time imaging. By using the variable exposure time imaging, we can suppress motion blur of bright regions. In addition, we propose a motion blur recovering method from variable exposure time images for obtaining more distinct images including darker regions. Experimental results show our method can take a clear HDR image even if the target object moves in HDR scene.

In this paper, we propose a novel imaging method called variable exposure time imaging for obtaining HDR images from single image capture. In this method, we control exposure time pixel by pixel. Thus, each pixel in an image taken by this imaging method is obtained under different exposure time. We call this image variable exposure image. By using the variable exposure image, we can synthesize a high dynamic range image efficiently, since we can optimize the exposure time pixel by pixel according to the input intensity at each pixel. Experimental results from the proposed method show the efficiency of the proposed imaging method.