Types of Image Compression for Medical Imaging Essay

Medical imaging, as we all know, is the process of taking images of various parts of the human body for diagnostic and surgical purposes. Some of the popular medical imaging modalities are X-ray radiography, Magnetic resonance imaging, Medical ultrasound, Computed tomography etc. Since, these images contain clinical data of extreme importance for treatment follow-ups and are acquired at cost of radiation exposure, infrastructure, money and time involved. Thus, once acquired, the medical imaging data should not be disposed off casually, instead it should be retained so that it can be utilized for various medical applications and the chances of repeated testing can be minimized. Also, maintaining electronic health records of patients serves†¦show more content†¦In other words an optimal compression ratio should be chosen so as to suit the needs of medical examination, without compromising with its diagnostic value [2]. 1.2 Types of Compression Image compression can be classified into two types viz. lossless and lossy compression. Lossless compression is the technique of reducing the size of an image without any virtual loss of information. It is also known as reversible form of image compression since the image obtained after compression and then decompression resembles the original one. Typical compression ratios that can be achieved ranges from 1.5 to 3.6 [3]. Conversely, lossy or irreversible form of compression techniques are those in which some or the other information is always lost. Though, lossy compression algorithms are capable of compressing images at ratios much higher than that achieved from lossless compression thus, ensuring faster rates of transmission and lesser storage space. However, the regenerated image is not guaranteed to be an exact replica of the original image, as some data is lost permanently, which will cause error during decompression. Typical compression ratios achieved may range from 5 to 50. Though lossy data compression is often acceptable but the game is not that easy when it comes to medical images. The data from medical imaging examination should possess certain requirements for fidelity [3]. 1.3 Barriers to image compression Lossy compression:Show MoreRelatedMammography: X-ray and Breast Tissue Essay1676 Words   |  7 PagesNovember 8, 1895. Eighteen years later mammography got its rudimentary beginnings due to these ionizing x-rays. In 1913, Berlin Albert Soloman, a German surgeon, was among the first to discover that breast cancer could be radiographed. In a 1927 medical textbook the first instance of a radiograph of a living person’s breast taken by Otto Kleinschmidt was published. Although these recordings of mammography appeared in early years, it wasn’t until the late 50’s that it was popularized by Robert EganRead MoreAdvanced Computational Intelligence Techniques For Hypoglycemia Monitoring System1204 Words   |  5 PagesHYPOGLYCEMIA MONITORING SYSTEM. Microwaves imaging recognition by using advanced computational intelligence on biomedical applications (breast cancer detection) RESEARCH AREA OF INTEREST : HEALTH TECHNOLOGIES 1. INTRODUCTION This project aims to develop improved microwave imaging algorithms using radar based time reversal signal processing coupled with tomographic reconstruction to solve for the inverse source and scattering problems that arise in microwave imaging for localization of suspicious tissueRead MoreThe Image Of Image Processing1224 Words   |  5 Pagesresearch Image processing: Image processing is a methodology to perform some operations on an image, so as to urge an enhanced image or to extract some helpful data from it. It is treated as an area of signal processing where both the input and output signals are images. Images are portrayed as two dimensional matrix, and we are applying already having signal processing strategies to input matrix. Images processing finds applications in several fields like photography, satellite imaging, medical imagingRead MoreTaking a Look at Image Processing3018 Words   |  12 Pages Image Processing is a technique to enhance raw images received from cameras/sensors placed on satellites, space probes and aircrafts or pictures taken in normal day-today life for various applications. Various techniques have been developed in Image Processing during the last four to five decades. Most of the techniques are developed for enhancing images obtained from unmanned spacecrafts, space probes and military reconnaissance fli ghts. Image Processing systems are becoming popular dueRead MoreData Processing : Image Processing1627 Words   |  7 Pages1.1. Image processing: Image processing is a methodology to perform some operations on an image, so as to urge an enhanced image or to extract some helpful data from it. It is treated as an area of signal processing where both the input and output signals are images. Images are portrayed as two dimensional matrix, and we are applying already having signal processing strategies to input matrix. Images processing finds applications in several fields like photography, satellite imaging, medical imagingRead MoreA Wave Is Repeated Oscillation That Transfers Energy Without Transferring Matter1279 Words   |  6 PagesA wave is repeated oscillation that transfers energy without transferring matter. There are few types of waves: Transverse waves Longitudinal waves Properties of the waves: †¢ Reflection – it is a change of the wave direction when there is a fixed boundary (if there’s a fixed end, crest will reflect with the trough back. If there’s an open or free end, crest will reflect with the crest back) †¢ Refraction – it is a change of the wave direction and speed when it travels from one medium toRead MoreWireless Sensor Networks : Data Quality For Better Selection Process1729 Words   |  7 Pagessampling, or sparse sampling) to detect outliers images obtain from wireless sensors. The objective of this proposed method is to obtain an outlier degree in images through wireless sensors which provides the data quality for better selection process. CS theory is implemented to detect object through background subtracted images and the objects of interest which occupy a small portion of the camera view. Also we achieved good compression of detecting image. Keywords - Compressive Sensing, Discrete CosineRead MoreOsteoporosis Affects Women And Men1443 Words   |  6 Pagescauses of secondary diseases. osteoporosis does not kill people, but people can die from other complications of bone fractures and chronic pain, blood clots in the deep veins of the leg, the disruption caused by the stooped posture resulting from compression fractures of the spine or pneumonia breathing. Etiology In the history, osteoporosis has existed for hundreds of years, microscope’s studies made to mummies’ skeletons have found signs of osteoporosis. The invention of the microscopeRead MoreMammography: A Special Imaging Method in Diagnostic Radiology3550 Words   |  15 PagesMammography: A special imaging method in diagnostic radiology Adam Purvis 1154987 Medical Physics 1E03 TA: Sarah McNeil Professor: Mic Farquharson Over the past two decades, mammography has become the central tool used to detect cancerous regions within the breast. This evolution has been enabled by advancements in the technology itself and its implementation into healthcare regulations of numerous countries around the world (Pisano et al., 2004). In its beginning stages, breast cancerRead MoreA Normal Human Thoracic Spine1401 Words   |  6 Pagesshaped† (2011, para. 11). This results in an inward and forward postural change of the upper spine. Kyphosis can manifest at any age, but the most common type is age-related. Older adults are especially at a greater risk for kyphosis. Particularly those with weakened thoracic spinal bones and compressed vertebrae caused by osteoporosis. Other types of kyphosis are congenital or adolescent, known as Scheuermann’s disease (Mayo Clinic, 2014). Aside from osteoporosis, other causes of a kyphotic deformity