We have developed a field-worthy, high-definition, real-time depth-mapping television camera called the HDTV Axi-Vision Camera. The camera can simultaneously capture both an ordinary HDTV color image and a depth image of objects on more than 1280 x 720 pixels at a frame rate of 29.97 Hz, or on 853 x 480 pixels at a frame rate of 59.94 Hz. The number of detectable pixels per unit time was increased by about 5 times that of the prototype camera by improving the sensitivity and resolution of the depthmapping camera. Short video clips demonstrate how depth information from the camera can be used to create a virtual image in actual television program production.
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http://dx.doi.org/10.1364/opex.12.002781 | DOI Listing |
Diagnostics (Basel)
December 2024
Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block Level 10, 1E Kent Ridge Road, Singapore 119228, Singapore.
Background: Endoscopic assessment for the diagnosis of gastric cancer is limited by interoperator variability and lack of real-time capability. Recently, Raman spectroscopy-based artificial intelligence (AI) has been proposed as a solution to overcome these limitations.
Objective: To compare the performance of the AI-enabled Raman spectroscopy with that of high-definition white light endoscopy (HD-WLE) for the risk classification of gastric lesions.
ACS Nano
January 2025
State Key Laboratory of Extreme Photonics and Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, China.
Multichannel imaging in the second near-infrared (NIR-II) window offers vital and comprehensive information for complex surgical environments, yet a simple, high-quality, video-rate multichannel imaging method with low safety risk remains to be proposed. Centered at the superior NIR-IIx window of 1400-1500 nm, triple-channel imaging coordinated with 1000-1100 and 1700-1880 nm (NIR-IIc) achieves exceptional clarity and an impressive signal-to-crosstalk ratio as high as 22.10.
View Article and Find Full Text PDFInt J Gynaecol Obstet
February 2025
Hysteroscopy Unit, Hospital Quirón Salud, Málaga, Spain.
Historically, blind intrauterine procedures such as dilation and curettage (D&C) and blind endometrial biopsies have been the primary approach for diagnosing and managing intrauterine pathologies. However, these techniques lack direct visualization, leading to diagnostic limitations, incomplete treatment, and increased complication rates. Despite substantial advances in hysteroscopic technology, including high-definition imaging and minimally invasive instruments, blind procedures remain widely used.
View Article and Find Full Text PDFIndian J Gastroenterol
October 2024
Department of Gastroenterology, Hepatology and Clinical Nutrition, Aster CMI Hospital, Bengaluru, 560 092, India.
Sensors (Basel)
September 2024
School of Electricity, Shanghai Dianji University, Shanghai 201306, China.
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