Study and Theoretical Analysis of Various Segmentation Techniques for Ultrasound Images

Image segmentation is an important and also necessary technique as it facilitates the delineation of anatomical structures and other region of interest in various imaging modalities such as Ultrasound, Computer Tomography… of medical field. Among the several imaging modalities, an Ultrasound technique plays a vital role in medical field because it is non-invasive and mainly radiation used in this modality is not harmful. On the other hand, the image obtained using this modality is distorted due to the several reasons like inherent noise of the equipment, lack of operator knowledge…etc. This makes the complexity in identifying the region of interest. Several segmentation techniques are used to segment the region of interest from the noisy image. This paper explores various segmentation techniques like edge based, threshold based, region based and texture based segmentation.