A Video-Browsing-Enhanced Personal Video Recorder

We present the world\´s first highlights-playback-capable hard disk drive (HDD)-enhanced DVD recorder (personal video recorder-PVR). It automatically detects highlights in sports video by detecting portions with a mixture of the commentator\´s excited speech and cheering, using Gaussian mixture models (GMM\´s) trained using the MDL criterion. Our computation is carried out directly on the MDCT coefficients from the AC-3 coefficients thus giving us a tremendous speed advantage. Our accuracy of detection of sports highlights is high across a variety of sports. Our user-study shows that viewers like the new functionality even if it makes mistakes. Finally, we propose genre-independent temporal segmentation of non-sports content using computationally inexpensive audio-visual features. Such segmentation enables "smart skipping, "from one semantic unit to another.