Real-Time Instrument Scene Detection in Screening GI Endoscopic Procedures

Author(s):  
Chuanhai Zhang ◽  
Wallapak Tavanapong ◽  
Johnny Wong ◽  
Piet C. De Groen ◽  
JungHwan Oh
1999 ◽  
Vol 35 (3) ◽  
pp. 381-400 ◽  
Author(s):  
John M. Gauch ◽  
Susan Gauch ◽  
Sylvain Bouix ◽  
Xiaolan Zhu

2012 ◽  
Vol 108 (2) ◽  
pp. 524-535 ◽  
Author(s):  
Sean R. Stanek ◽  
Wallapak Tavanapong ◽  
Johnny Wong ◽  
Jung Hwan Oh ◽  
Piet C. de Groen

2018 ◽  
Vol 06 (06) ◽  
pp. E676-E687 ◽  
Author(s):  
Toshitatsu Takao ◽  
Ryo Masumura ◽  
Sumitaka Sakauchi ◽  
Yoshiko Ohara ◽  
Elif Bilgic ◽  
...  

Abstract Background and study aims We developed a new reporting system based on structured data entry, which selectively extracts only endoscopic findings from endoscopists’ oral statements and automatically inputs them into appropriate columns in real time during endoscopic procedures. Methods We compared the time for endoscopic procedures and report preparation (ER time) by using an esophagogastroduodenoscopy simulator in three groups: one preparing reports using a mouse after endoscopic procedures (CE group); a second group preparing reports by using voice alone during endoscopic procedures (SR group); and the final group preparing reports by operating the system with a foot switch and inputting findings using voice during endoscopic procedures (SR + FS group). For the SR and SR + FS groups, we identified the recognition rates of the speech recognition system. Results Mean ER times for cases with three findings each were 162, 130 and 119 seconds in the CE, SR and SR + FS groups, respectively. The mean ER times for cases with six findings each were 220, 144 and 128 seconds, respectively. The times in the SR and SR + FS groups were significantly shorter than that in the CE group (P < 0.017). The recognition rate of the SR group for cases with three findings each was 98.4 %, and 97.6 % in the same group for cases with six findings each. The rates in the SR + FS group were 95.2 % and 98.4 %, respectively. Conclusion Our reporting system was demonstrated to allow an endoscopist to efficiently complete the report in real time during endoscopic procedures.


2009 ◽  
Vol 69 (5) ◽  
pp. AB234
Author(s):  
Anita B. Saini ◽  
Pradeep K. Bekal ◽  
Alan V. Safdi ◽  
Dan Walker ◽  
Bharat Saini ◽  
...  

2021 ◽  
Vol 33 (6) ◽  
pp. 1338-1348
Author(s):  
Yasuaki Orita ◽  
Kiyotsugu Takaba ◽  
Takanori Fukao ◽  
◽  

There are many reports of secondary damage to crews during firefighting operations. One way to support and enhance their activities is to get robots to track them and carry supplies. In this paper, we propose a localization method for stairs that includes scene detection. The proposed method allows a robot to track a person across stairs. First, the scene detection autonomously detects that the person is climbing the stairs. Then, the linear model representing the first step of the staircase is combined with the person’s trajectory for localization. The method uses omnidirectional imaging and point clouds, and the localization and scene detection are available from any posture around the stairs. Finally, using the localization result, the robot automatically navigates to a posture where it can climb the stairs. Verification confirmed the accuracy and real-time capability of the method and demonstrated that the actual crawler robot autonomously chooses a posture that is ready for climbing.


1979 ◽  
Vol 44 ◽  
pp. 41-47
Author(s):  
Donald A. Landman

This paper describes some recent results of our quiescent prominence spectrometry program at the Mees Solar Observatory on Haleakala. The observations were made with the 25 cm coronagraph/coudé spectrograph system using a silicon vidicon detector. This detector consists of 500 contiguous channels covering approximately 6 or 80 Å, depending on the grating used. The instrument is interfaced to the Observatory’s PDP 11/45 computer system, and has the important advantages of wide spectral response, linearity and signal-averaging with real-time display. Its principal drawback is the relatively small target size. For the present work, the aperture was about 3″ × 5″. Absolute intensity calibrations were made by measuring quiet regions near sun center.


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