High Dynamic Range Image Synthesis with Ghost-Free

This paper presents an efficient ghost-free approach to address the object motion problem that commonly exists in high dynamic range (HDR) image synthesis. Global illumination correction, as the first step, is to adjust the illumination of source images so that the differences between adjacent images of various expose time can be alleviated. Followed by the on-line selective composition consist of only two parameters instead of the buffer with all the pixel values in image sequence for each pixel location. With the first image being selected as a reference image, the proposed approach can start the global illumination correction and on-line selective composition process once the second image is captured without assuming the expose value (EV) known. Experimental results demonstrate that the proposed approach can yield fairly comparable results in synthesized HDR image quality as state-of-the-art approach, but the proposed approach cost much lower hardware resources.