A new system design of the multi-view Micro-Ball endoscopy system

Area of Science:

• Medical Imaging
• Gastroenterology
• Biomedical Engineering

Background:

• Current wireless endoscopic capsules have limited fields of view, leading to missed diagnostic spots in the gastrointestinal (GI) tract.
• The need for enhanced visualization and reduced miss rates in GI endoscopy is critical for accurate diagnosis.

Purpose of the Study:

• To propose a new system architecture, the Micro-Ball, for medical endoscopy applications.
• To enhance the field of view and reduce the endoscopic miss rate using multiple cameras.
• To develop an energy-efficient working mode for prolonged in-vivo operation.

Main Methods:

• Developed a Micro-Ball system architecture embedding six cameras for multiple fields of view.
• Implemented a new working mode where captured image data is saved to Flash memory.
• Achieved low power consumption of <6mJ per 480x480 image frame capture and storage.
• Verified the system on an FPGA-based demonstration platform.

Main Results:

• The six-camera Micro-Ball significantly reduces the endoscopic miss rate compared to single/dual camera systems.
• The system demonstrates high energy efficiency, capturing and storing images at <6mJ per frame.
• The endoscopic Micro-Ball can operate for 10 hours at 2 frames per second.

Conclusions:

• The Micro-Ball endoscopy system offers a substantial improvement in GI tract examination by expanding the field of view.
• Its energy-efficient design and prolonged operational capacity make it suitable for extended diagnostic procedures.
• The validated Micro-Ball system presents a promising advancement for reducing diagnostic errors in gastroenterology.