Use of morphological filters in detection of flashes and other light events
Tutor / Supervisor
Student
Ekiza Lujua, Christian
Document type
Master thesis (pre-Bologna period)
Date
2006
rights
Open Access
Publisher
Universitat Politècnica de Catalunya
UPCommons
Abstract
In a collaboration agreement between the UPC and the Thomson Corporate Research Lab,
represented by Joan Llach, the objective of this project is to detect local and global flash light events of
different intensities in video sequences. Thomson has shown interest in using this kind of information to
enable the application of techniques that exploit the characteristics of such events, thus expecting to
improve the overall encoding efficiency. This study presents a broad definition for flash light events , and
proposes the design and implementation of a flash detector in two steps; a first step of rough detection that
uses morphologic filters in both spatial and temporal domains, and a second processing step that offers a
much more refined result. In the first stage of the project the objectives were defined and a demo of the
application of morphologic filters for the detector was presented. The second stage included a 6 months
internship at the Thomson Corporate Research Lab in Princeton (NJ-USA) where the results
refinement process was developed and implemented
