Title :
A hybrid camera for motion deblurring and depth map super-resolution
Author :
Li, Feng ; Yu, Jingyi ; Chai, Jinxiang
Author_Institution :
Dept. of Comput. & Inf. Sci., Univ. of Delaware, Newark, DE
Abstract :
We present a hybrid camera that combines the advantages of a high resolution camera and a high speed camera. Our hybrid camera consists of a pair of low-resolution high-speed (LRHS) cameras and a single high-resolution low-speed (HRLS) camera. The LRHS cameras are able to capture fast-motion with little motion blur. They also form a stereo pair and provide a low-resolution depth map. The HRLS camera provides a high spatial resolution but also introduces severe motion blur when capturing fast moving objects. We develop efficient algorithms to simultaneously motion-deblur the HRLS image and reconstruct a high resolution depth map. Our method estimates the motion flow in the LRHS pair and then warps the flow field to the HRLS camera to estimate the point spread function (PSF). We then deblur the HRLS image and use the resulting image to enhance the low-resolution depth map using joint bilateral filters. We demonstrate the hybrid camera in depth map super-resolution and motion deblurring with spatially varying kernels. Experiments show that our framework is robust and highly effective.
Keywords :
image motion analysis; image reconstruction; image resolution; image restoration; image sensors; optical transfer function; stereo image processing; depth map superresolution; high-resolution low-speed cameras; hybrid camera; joint bilateral filters; low-resolution high speed camera; motion deblurring; motion flow estimation; motion flow warping; point spread function; stereo image pair; Cameras; Filters; Image reconstruction; Image resolution; Image restoration; Image sensors; Kernel; Motion estimation; Signal resolution; Spatial resolution;
Conference_Titel :
Computer Vision and Pattern Recognition, 2008. CVPR 2008. IEEE Conference on
Conference_Location :
Anchorage, AK
Print_ISBN :
978-1-4244-2242-5
Electronic_ISBN :
1063-6919
DOI :
10.1109/CVPR.2008.4587574