Title :
Image deblurring using maps of highlights
Author :
Queiroz, Francisco ; Tsang Ing Ren ; Shapira, Lior ; Banner, Ron
Author_Institution :
Fed. Univ. of Alagoas, Maceió, Brazil
Abstract :
In deblurring an image, we seek to recover the original sharp image. However, without knowledge of the blurring process, we cannot expect to recover the image perfectly. We propose a deblurring method of a single-image where the blur kernel is directly estimated from highlight spots or streaks with high intensity value. These highlighted points can be represented by specular reflection of light that may appear in the eye, on a shiny surface, or in small light sources present in the image. In this work, we detect automatically these high-lighted points in a blurred image. Therefore, creating a map of highlight, which is used as a guide to extract automatically a single highlight from the blurred image. Due to its unique nature, it is demosntrated that the highlighted points are a good estimation of the blur kernel and a sharp image is restored using these kernel. The experimental results show the performance of this method in comparison to several other deblurring methods.
Keywords :
feature extraction; image restoration; object detection; blur kernel estimation; high intensity value; image deblurring process; image restoration; maps of highlights; sharp image recovery; small light sources; specular light reflection; Deconvolution; Estimation; Image restoration; Indexes; Kernel; Light sources; Noise; Blind Deconvolution; Highlight Points; Image Deblurring; Image Restoration;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2013 IEEE International Conference on
Conference_Location :
Vancouver, BC
DOI :
10.1109/ICASSP.2013.6637923