模拟注视眼动的多聚焦彩色图像融合.pdf

Computer Engineering and Applications 计算机工程与应用 2016 ，52（2 ） 197 模拟注视眼动的多聚焦彩色图像融合 1 1 2 1 1 高浩然 ，潘 晨 ，沈 丹 ，侯庆岑 ，章东平 1 1 2 1 1 GAO Haoran , PAN Chen , SHEN Dan , HOU Qingcen , ZHANG Dongping 1.中国计量学院 信息工程学院，杭州 310018 2.浙江大学 医学院附属第一医院，杭州 310003 1.College of Information Engineering, China Jiliang University, Hangzhou 310018, China 2.College of Medicine affiliated to The First Hospital, Zhejiang University, Hangzhou 310003, China GAO Haoran, PAN Chen, SHEN Dan, et al. Multi-focus color image fusion by simulated fixational eye movement. Computer Engineering and Applications, 2016, 52 （2 ）：197-204. Abstract ：Multi-focus image would be divided into focus area and defocus area. Focus area usually attracts attention with outstanding visual salience. So a novel image fusion method is presented for multi-focus color images in which human visual system is simulated to design the algorithm. The Hyper Fast Fourier Transformation （HFFT ）is used to improve the traditional algorithm for saliency detection in order to get saliency map of a color image directly. The fixational eye move- ment is simulated by changing the scale of the image lightly. So that more saliency maps of an image could be obtained in different size and could be accumulated in same size. The pixels of the source image with the most saliency are selected to compose the fusion image. Experimental results show that HFFT makes full use of color information of the source images and the accumulated saliency could enhance the performance in PSNR and RMSE. More than 36 dB of PSNR, less than single indicator of RMSE and the best subjective evaluation could be obtained easily in compared experiments. Key words ：hyper Fourier transformation; saliency; fixational eye movement; multi-focus image fusion 摘 要：多聚焦图像存在聚焦和离焦区。通常聚焦区吸引人的注意力，具有突出的视觉显著性。提出一种模拟人