Brain MRI images and their properties
Medical image analysis is the most challenging and emerging field in today’s world, among which brain tumor classification and detection is most serious and devastating types of cancer. Brain tumor classification is one of the typical causes in diagnosing the tumor at early stage. Brain tumor is an abnormal development of cells inside the skull. Regularly the tumor will grow from the brain cells, blood vessels, nerves that emerge from the brain.
Image processing is a method to perform some operations on an image, in order to get an enhanced image or to extract some useful information from it. In brain tumor diagnosis, doctors integrate their medical knowledge and brain magnetic resonance imaging (MRI) scans to obtain the nature and pathological characteristics of brain tumors and to decide on treatment options. However, in brain MRI, where a great number of MRI scans taken for every patient, physically detecting and segmenting brain tumors is monotonous. Therefore, there is a need for computer aided brain tumor detection and segmentation from brain MR images to overcome the problems involved in the manual segmentation. Number of methods has been proposed in recent years to seal this break, but still there is no generally customary automated technique by doctors to be used in clinical floor due to accuracy and robustness issues. Artificial Intelligence methods such as Digital Image Processing when cooperative with others like machine knowledge, fuzzy logic and pattern recognition are so valuable in Image techniques. A brain tumor is a collection (or mass) of abnormal cells in the brain. A tumor may lead to cancer, which is a major leading cause of death and responsible for around 13% of all deaths world-wide. Cancer incidence rate is growing at an alarming rate in the world. So detection of the tumor is very important in earlier stages.
The word tumor is a synonym for a word neoplasm which is formed by an abnormal growth of cells Tumor is something totally different from cancer.
There are three common types of tumor:
3) Malignant (cancer can only be malignant)