Sport Indexing

The problem of content level processing for multimedia has much exercised the research community in recent years. Video, in particular, is the focus of much research; the high volume of content makes content–level video processing difficult. Content–based retrieval for video involves developing search–engines capable of running queries against a corpus of video footage. Common to most content–level multimedia applications is a feature extraction stage, in which the video footage is annotated with derived information or metadata. For example, simple summary generation is often based on the extraction of the first frame of each scene; in this instance scene cuts are the feature to be extracted. Automated feature extraction has been implemented in numerous research and commercial systems. Some systems augment the stored corpus with extracted features such as global colour, texture and motion, and dominant camera motion.

Detection of tennis court shot detection


Video: Niall Rea's result on tennis court shot detection.

Detection of the snooker table


Video: Detection of the snooker table.

The system parses the sequence, identifies relevant camera views and tracks ball movement. Using the Hough Transform, the moment feature captures the geometry of the scene without extracting the 3D scene geometry. Disappearance of objects are detected using enclosed regions.

Tracking


Video: Snooker ball tracking. Videos: Tennis player tracking.
Page last modified on November 16, 2006
© 1998-2012 Signal Processing and Media Applications Group - Trinity College Dublin

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Academy Award

Learn more about our Technical Oscar

Green Parrot Pictures

Green Parrot Pictures, a video technology startup funded by Anil Kokaram, was acquired by Google in 2011!

Goal Line Technology

Listen to David explain on RTE Radio 1 why this picture does not prove that the ball was over the line.

Surface Anatomy Guide

Read about the launch of the Surface Anatomy Guide, a joint project between Sigmedia of TCD, the RCSI and the RHA.

ClockHead 3D

Watch the national TV news coverage of the premiere of our latest stereoscopic 3D short live action "Clockhead": RTE link

Anil at TEDxDublin

Watch the TEDxDUBLIN talk that Prof. Anil Kokaram gave in September 2010: The Mathematics of Bullet Time -- From Muybridge to the Matrix

Projects

Sigmedia is involved in many Projects. Find out more.

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