Title :
Fast and Simple Super Resolution for Range Data
Author :
Xiang, Xueqin ; Li, Guangxia ; Tong, Jing ; Pan, Zhigeng
Author_Institution :
State Key Lab. of Comput. Aided Design & Comput. Graphics, Zhejiang Univ., Hangzhou, China
Abstract :
Current active 3D range sensors, such as time-of-flight cameras, enable acquiring of range maps at video frame rate. Unfortunately, the resolution of the range maps is quite limited and the captured data are typically contaminated by noise. We therefore present a simple pipeline to enhance the quality as well as improve the spatial and depth resolution of range data in real time by up sampling the depth information with the data from high resolution video camera and utilizing a new strategy to increase the sub-pixel accuracy. Our algorithm can greatly improve the reconstruction quality, boost the resolution of the range data to that of video sensor while achieving high computational efficiency for a real-time application.
Keywords :
image denoising; image resolution; image sensors; video cameras; 3D range sensors; computational efficiency; high resolution video camera; noise; range data; range maps resolution; reconstruction quality; sub-pixel accuracy; video sensor; Cameras; Filtering algorithms; Image sensors; Pixel; Sensors; Spatial resolution; fast multi-lateral filter; sub-pixel estimation; super resolution;
Conference_Titel :
Cyberworlds (CW), 2010 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-8301-3
Electronic_ISBN :
978-0-7695-4215-7