Title :
Virtual camerawork for generating lecture video from high resolution images
Author :
Yokoi, Takao ; Fujiyoshi, Hironobu
Author_Institution :
Dept. of Comput. Sci., Chubu Univ., Aichi, Japan
Abstract :
We propose a method for generating a dynamic lecture video from the high resolution images recorded by a HDV camcorder. The lecture images are cropped to track the region of the instructor. Our approach uses bilateral filtering to avoid jittery motion caused by temporal differencing, and pseudo camera motion (panning) based on shooting technique of broadcast cameraman is generated. We evaluated our method, and showed that the effectiveness of our algorithm was verified through subjective experiments.
Keywords :
filtering theory; image motion analysis; image resolution; video cameras; video recording; HDV camcorder; bilateral filtering; dynamic lecture video generation; high image resolution; instructor region tracking; pseudo camera motion; temporal differencing; virtual camerawork; Broadcast technology; Broadcasting; Cameras; Computer science; Filtering; Image resolution; Motion detection; Multimedia communication; Timing; Video equipment;
Conference_Titel :
Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on
Print_ISBN :
0-7803-9331-7
DOI :
10.1109/ICME.2005.1521532
