Filtering Video Volumes Using the Graphics Hardware

Denoising video is an important task, especially for videos captured in dim lighting environments. The filtering of video in a volumetric manner with time as the third dimension can improve the results significantly. In this work a 3D bilateral filter for edge preserving smoothing of video sequences exploiting commodity graphics hardware is presented. A hardware friendly streaming concept has been implemented to allow the processing of video sequences of arbitrary length. The clear advantage of time-based filtering compared to frame-by-frame filtering is presented as well as solutions to current limitations for volume filtering on graphics hardware. In addition, a significant speedup over a CPU based implementation is shown.

• Type: Conference
• Year: 2007
• Where: SCIA
• Authors: Andreas Langs, Matthias Biedermann
• Keywords: Graphics Hardware, SCIA 2007, Sequences Exploiting Commodity, Video Sequences