Abstract:Objective To propose a new test method and form a test device through the analysis and discussion of difficult problems in
the process of image signal-to-noise ratio (SNR) detection of high-definition (HD) electronic endoscope. Methods A set of optical
test device was designed and manufactured, and with the HD digital image analysis software developed by us, the fast detection
of SNR of HD endoscope image was realized. Results The image SNR of a set of electronic colonoscope already on the market
was tested. The repeatability error of the test results was 0.07%, the brightness uniformity of the test target was 2.64%, and the
color temperature of the lighting source was 6330 K, which all met the design requirements. Conclusion The method and device
can effectively solve the difficult problem of SNR detection of HD electronic endoscope image. The research results can play an
important role in the image quality detection of electronic endoscope in the future.
李宁,孟祥峰,叶佳宜,李佳戈. 高清电子内窥镜图像信噪比的检测方法研究[J]. 中国医疗设备, 2021, 36(8): 8-10.
LI Ning, MENG Xiangfeng, YE Jiayi, LI Jiage. Study on the Test Method of Image SNR of HD Electronic Endoscope. China Medical Devices, 2021, 36(8): 8-10.