المؤلفون: Alexander Menck, Uwe Horn, Axel Zibold, Steffen Weissenberg, Robert Brunner, Gerd Buchda, Reinhard Steiner

المصدر: SPIE Proceedings.

مصطلحات موضوعية: Diffraction, Microscope, Materials science, business.industry, Mask inspection, law.invention, Optics, Optical microscope, law, Solid immersion lens, Water immersion objective, business, Lithography, Immersion lithography

الوصف: The capability of a high NA, large working distance, microscope objective was demonstrated by investigating different mask features. The microscope objective is based on a hybrid concept combining diffractive and refractive optical elements. Resolution down to 125 nm lines and spaces (L/S) is demonstrated by investigating periodic chrome on glass structures. A significant additional improvement of the resolution is achieved by inducing a solid immersion lens (SIL).

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::8f4786e112fadb32af620af82184115fTest
https://doi.org/10.1117/12.569019Test

المؤلفون: Klaus Werner Stuhlmueller, Uwe Horn, Michael Link, Bernd Girod

المصدر: SPIE Proceedings.

مصطلحات موضوعية: Computer science, Network packet, business.industry, Image quality, Real-time computing, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Signal compression, Data_CODINGANDINFORMATIONTHEORY, Video processing, Video quality, Scalable Video Coding, Video compression picture types, Packet loss, The Internet, business, Internet video

الوصف: This paper describes a transmission scheme for Internet video streaming that provides an acceptable video quality over a wide range of connection qualities. The proposed system consists of a scalable video coder which uses a fully standard compatible H.263 coder in its base layer. The scalable video coder is combined with unequal error protection using Reed- Solomon codes applied across packets. We present and verify a two-state Markov model for packet losses over Internet connections. The relation between packet loss and picture quality at the decoder for an unequally protected layered video stream is derived. Experimental results show that, with our approach, the picture quality of a streamed video degrades gracefully as the packet loss probability of an Internet connection increases.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::ec0253bd851698cf426ba820586c431aTest
https://doi.org/10.1117/12.334735Test