Development Of Portable Equipment Of Wireless Endoscope Based On Linux And S3C2410

A wireless endoscope system developed on the embedded Linux platform is presented in this paper. This wireless endoscope system which consists of endoscope capsule, portable equipment and image workstation, can meet the needs of wireless and portable functions. The endoscope capsule for gastrointestinal inspection should be gulped down by patients, and the portable equipment should be carried to receive the images of gastrointestinal (GI) tract via the radio frequency module. The parameters of the capsule can be set or read back by portable equipment with low frequency module. Acquired image data can be saved as FAT32 format file in USB disk, which can be processed and reviewed at windows PC workstation in the next stage.Medical wireless endoscope system has important clinical value and commercial value.With the development of non-invasive medical technologies, wireless endoscope become an important branch of human gastrointestinal tract diagnosis and treatment micro-system. Wireless endoscope overcomes the limitations of pipeline endoscopes, it can be swallowed and than travel the whole digestive system– includes esophagus, stomach, small intestine and colon. The mini-camera in the endoscope capsule can take the pictures of specific or non-specific location. Thus the endoscope capsule can check-up the entire digestive system. It overcomes the defect of traditional electronic endoscope that it can only check-up the stomach and a part of the intestine.This project had described the study of portable equipment and image workstation. The portable equipment is based on the embedded Linux and ARM core. This paper will introduce the hardware and software of portable equipment. The study of its hardware consists of S3C2410 microprocessor architecture, the low-frequency RF module design, USB host and device control and the application development board HH2410, and so on; its software contains working mechanisms of Linux operating system, USB device driver, radio frequency driver and low frequency driver design base the Linux environment. Image workstation mainly divided into four parts: data communication module, image processing module, data management module and system module. Each module can accomplish their functions independently, and then medical personnel will be able to observe and use of the image data captured.The digital image data which acquired by endoscope capsule can sent to the portable equipment with their radio frequency module, and portable equipment also can transmit those image data to image workstation via the USB interface. Capsule endoscopy's working parameters can be written by portable equipment directly, or amended by image workstations at online work status. We chose Linux operating system as our embedded system, and design the blue print of system hardware and software. Portable equipment had achieved functions of the image data acquisition and storage of digestive tract based on HH2410 development board. It can also control the endosecope capsule.Image Workstation provides a platform for image processing, image storage, medical records management, image diagnostic. This paper simulates the RGB image that mixed Gaussian and Salt & Pepper noise as the image comes form endoscopy. The basical functions of image workstation had succeeded.