Classification of Endoscopic Imaging

Gastrointestinal endoscopy began with the introduction of the gastroscope, which prompted active clinical use of endoscopes in subsequent years, and thereafter various fiberscopes were also applied clinically. In 1984, electronic videoendoscopes were also developed. Unlike fiberscopes, which directly detect light signals, electronic videoendoscopes convert electronic signals into images via semiconductor elements and allow various forms of electronic image processing and analysis.