Abstract
The wireless image transmission system proposed in this thesis follows the specification of first commercialized wireless capsule endoscopy (WCE) in terms of image. The system can be integrated and fulfills wireless image transmission with proper coding. In the beginning of the development of WCE, modules integration is needed based on the product specification to get the best configuration parameter, and then miniaturization can be implemented. Therefore, the research can be seen as pre-development stage of WCE. Besides, it can also be integrated into other applications of real-time image transmission. First, Arduino board including the ATmega328 microcontroller designed by Atmel is used. The adoption of Arduino is because of its lower cost and wider applications. Second, ArduCam camera shield including OV2640 sensor manufactured by OmniVision Technologies is used. The shield with the functions of frame buffering and image compression can transform original image data to JPEG format. Third, a wireless transmission path by HC-05 bluetooth module is built. It can reach the wireless image transmission by transferring JPEG file to computer and image will be displayed on the Hyper-terminal software. Finally, the wireless image transmission system is formed by integrating the camera shield, control board, and bluetooth module. The specifications in terms of image such as resolution and frame rate are 320×240 and 2.17fps.