Principles of medical image post-processing

Principles of medical image post-processing: the image can be sharpened, the image outline can be strengthened, the blur is reduced, and the image can be made clear.

Medical imaging refers to the technology and process of obtaining internal tissue images of the human body or a certain part of the human body in a non-invasive manner for the purpose of medical treatment or medical research. It includes the following two relatively independent research directions: medical imaging system and medical image processing.

The former refers to the process of image formation, including the study of imaging mechanisms, imaging equipment, imaging system analysis and other issues; the latter refers to the further processing of images that have been obtained, with the purpose of or It is to restore the original unclear image, or to highlight certain feature information in the image, or to classify the image pattern, etc.

As a science, medical imaging belongs to biological imaging and includes diagnostic imaging, radiology, endoscopy, medical thermal imaging technology, medical photography and microscopy. In addition, although technologies such as electroencephalography and magnetic brain imaging focus on measurement and recording and do not display images, the data generated have positioning characteristics and can be regarded as another form of medical imaging.

In terms of clinical application, it is also called medical imaging or imaging medicine. Some hospitals will have imaging medicine centers, imaging medicine departments or imaging medicine departments, equipped with relevant instruments and equipment, and staffed with specialized nurses. , radiographers and physicians are responsible for the operation of instruments and equipment, image interpretation and diagnosis, which is different from the radiology department responsible for radiotherapy.

Development trends:

1. From plane to three-dimensional, multi-dimensional images.

2. Transform from morphological images reflecting anatomical structures to "functional imaging" reflecting organ functions. The development of functional magnetic resonance imaging (functional MRI) is an obvious example.

3. Fusion of multi-modal images. Register images from different times and sources in a coordinate system to facilitate clinical diagnosis and treatment plan formulation.

4. The “picture archiving and communications system” (PACS) was born to meet the needs for collection, storage, output and transmission of massive medical images.

5. The rise of molecular imaging. Molecular imaging is the non-destructive observation of life processes in vivo at the molecular level.