Image ROI Selection and its Application

In radiation imaging application, huge image data is produced in DR and CT imaging. Image processing methods used in this area include image reconstruction, visualization, image enhancement, image compression and image defects detection and etc. Often people need pinpoint some area in an image and process this area. These areas are called ROI (region of image). The selection and edit of ROI is a functionality often used in radiation image processing. Various ROIs and applications are introduced in this article.