Literature Reviews - Segmentation of Hand Bone for Bone Age Assessment - page 14

Chapter 2
Literature Reviews

Abstract In this chapter, we review the techniques of histogram equation, hand
bone segmentation and image segmentation techniques. The basic concepts of
those techniques will be analyzed and compared. The objective of this chapter is
to show to readers that current techniques are not sufficient to address the hand
bone segmentation problems due to various restrictions. Hence, this motivates the
need for new technique that is capable of segmenting the hand bone so that the
segmented hand bone can be established and implemented in the fully automated
computer-aided skeletal age scoring system. The proposed novel framework of
hand bone segmentation will then be presented in next Chap. 3 .

2.1 Introduction

This section provides an overview for traditional or conventional histogram
equalization method and segmentation techniques that are usually adopted in
applications related to images segmentation to give the reader an overview of the
development of these techniques. The fundamental concept of each technique
is presented and the pros and cons of each technique are discussed. Besides, the
unsuitability of traditional techniques in hand bone segmentation are illustrated in
the context of computer-aided skeletal age scoring system by analyzing the nature
of the technique and by implementing the analyzed technique in hand bone seg-
mentation. This evaluation and implementation of previous techniques in hand
bone segmentation are crucial to motivate the objective and justify the contribution
of this topic. This section ends with the conclusion that a more advanced tech-
nique of hand bone segmentation should be derived instead of using the traditional
segmentation techniques.