Vasileios Mezaris
Electrical and Computer Engineer, Ph.D.
homepage curriculum vitae projects research demos downloads publications contact j b c p

ONLINE VIDEOS & DEMOS
On-line video analysis services. We have developed several on-line services for the analysis of audio-visual material.
Our latest interactive web service lets you upload videos in various formats, and performs shot and scene segmentation as well as visual concept detection on them. The processing is fast (several times faster than real-time video processing). The results are displayed with the help of an interactive user interface, which allows navigating through the video structure (shots, scenes), viewing the concept detection results for each shot, and searching by concepts within the video. Try the service yourself with your own videos.
In another version of this service, which is designed for machine-to-machine (rather than machine-to-human) interaction, the results are returned in the form of a machine-processable MPEG-7-compliant XML file. You can also test this service yourself, with your videos (but please contact us for this). An information video, explaining how this service works, is available. Watch the video
Finally, we have developed, as part of the LinkedTV research project and in collaboration with other LinkedtV partners, a more complete version of the on-line service that, given an input video, performs visual analysis (shot segmentation, chapter/topic segmentation, concept detection, face detection & tracking), audio analysis (speech & speaker recognition) and text analysis (keyword extraction). An information video, explaining how this service works, is also available. Watch the video
Multi-user photo collection synchronization and summarization. This video shows our method for synchronizing photo galleries of the same event (e.g. a sports event, a festival) that were captured by different people, and summarizing the event using all different photo galleries of it. Watch the video

Personal image analysis and organization. We have built, as part of the ForgetIT project, interactive demos of image quality assessment, visual concept detection, clustering and image collection summarization (they work with all mainstream browsers, but may require a recent browser version):
http://multimedia.iti.gr/ForgetIT/images_varioustravels/demonstrator.html and
http://multimedia.iti.gr/ForgetIT/images_Costarica/demonstrator.html
Object re-detection in video. We have developed a method for the fast re-detection and localization of objects in video, using local visual features. Watch the video

Video segmentation to shots. We have developed methods for the quick temporal segmentation of video, detecting both abrupt and gradual shot transitions and effectively handling effects such as photographers' flashes. Watch the video

Lecture video analysis. We have built, as part of the MediaMixer project, an interactive online demo of video segmentation to shots and visual concept detection for lecture videos. You can access the demo at http://multimedia.iti.gr/mediamixer/demonstrator.html (best viewed with Firefox)

Personalization. We have built, as part of the LinkedTV project, an interactive online demo of content and concept filtering for multimedia by means of semantic reasoning. Watch the video.

GPU-accelerated LIBSVM. We have developed an open source package for GPU-assisted Support Vector Machines (SVMs) training, based on the LIBSVM package. Watch the video



© 2015 Vasileios Mezaris