Nostrils and Chin Segmentation
AUTHORS:J. Burianek, V. Zyka, L. Rothkrantz, V. Hlavac
KEYWORDS:
ABSTRACT:
This report describes our approach to the localization
of the position of nostrils and chin. Basic demand is a good functionality
on the pictures of face without special make-up. The input picture contains
face, hair and shoulders of observed person. We don't use any special lighting
conditions for capturing the input images, therefore our program is useful
in many common cases.
Mentioned algorithm will be used in the initial
steps of very complex process of Automated Recognition of Facial Expressions
(ARFE). Good start is a basic condition for success of ARFE, then algorithm
have to be steady. Nostrils are used for face coordinate system generating
and chin makes lower limit of the face area.
In the first section of our report we introduce
the basic problems of ARFE and we describe main purpose of our work. The
second section deals with detail input and output specifications and restrictions.
In third part we explain different approaches of solution with their difficulties.
Next section is devoted implementation of our algorithm with detail description
of particular steps. In the final parts of this paper we introduce realized
experiments and think about usage and improvement for our program.
