نتایج جستجو برای: سنجندۀ oli

تعداد نتایج: 2042  

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
Dimitris Poursanidis Nektarios Chrysoulakis Zina Mitraka

An image dataset from the Landsat OLI spaceborne sensor is compared with the Landsat TM in order to evaluate the excellence of the new imagery in urban landcover classification. Widely known pixel-based and object-based image analysis methods have been implemented in this work like Maximum Likelihood, Support Vector Machine, k-Nearest Neighbor, Feature Analyst and Sub-pixel. Classification resu...

Journal: :Remote Sensing 2014
Edward J. Knight Geir Kvaran

The Operational Land Imager (OLI) on Landsat-8 represents a generational change from heritage Landsat instruments in its design, while it maintains data continuity with the 40+ year Landsat data archive. It preserves the 30-m ground sample distance, 185-km swath width and VIS/NIR/SWIR spectral bands. Furthermore, data continuity resulted from extensive pre-launch and on-orbit calibration and ch...

ژورنال: جنگل ایران 2017

هدف تحقیق حاضر، بررسی قابلیت داده‌های سنجندۀ OLI ماهوارۀ لندست 8 به‌منظور برآورد شاخص سطح برگ در بخشی از جنگل‌های زاگرس در شهرستان مریوان است. برای بررسی روابط بین شاخص سطح برگ و ارزش‌های طیفی داده‌های OLI، 60 قطعه‌ نمونۀ زمینی به روش نمونه‌برداری انتخابی با ابعاد 45×45 متر برداشت شده و برای تعیین مقادیر شاخص سطح برگ در هر قطعه‌ نمونه، عکس‌برداری نیم‌کروی اجرا شد. پردازش‌های مناسب تصویر شامل شا...

2011
Hao Liang Bing Ren Haikun Zhu

We propose a modified theoretical framework based on John Dunning’s classical OLI paradigm in the international business literature to analyze Chinese firms’ fast-growing and aggressive outward foreign direct investment (OFDI). In particular, from an institutional perspective, we suggest a “state-stewardship” view to incorporate state institutions into the OLI paradigm. This paper supplements o...

Journal: :Remote Sensing 2015
Jeffrey Czapla-Myers Joel McCorkel Nikolaus Anderson Kurtis J. Thome Stuart F. Biggar Dennis L. Helder David Aaron Larry Leigh Nischal Mishra

This paper presents the vicarious calibration results of Landsat 8 OLI that were obtained using the reflectance-based approach at test sites in Nevada, California, Arizona, and South Dakota, USA. Additional data were obtained using the Radiometric Calibration Test Site, which is a suite of instruments located at Railroad Valley, Nevada, USA. The results for the top-of-atmosphere spectral radian...

Journal: :Remote Sensing 2016
Hailiang Gao Xingfa Gu Tao Yu Li Liu Yuan Sun Yong Xie Qiyue Liu

The panchromatic and multispectral (PMS) sensor is an optical imaging sensor aboard the Gao Fen-1 (GF-1) satellite. This work describes an approach to validate the calibration coefficients of the PMS sensors based on the image data of the Landsat 8 Operational Land Imager (OLI). Two image pairs, one obtained over the Dunhuang test site and the other over the Golmud test site, were used in this ...

Journal: :Remote Sensing 2014
Neil Flood

The new Landsat-8 Operational Land Imager (OLI) is intended to be broadly compatible with the previous Landsat-7 Enhanced Thematic Mapper Plus (ETM+). The spectral response of the OLI is slightly different to the ETM+, and so there may be slight differences in the reflectance measurements. Since the differences are a function not just of spectral responses, but also of the target pixels, there ...

2002
Fei Li Jason Nieh

Server-based computing (SBC) is becoming a popular approach to deliver computational services across the network due to its reduced administrative costs and better resource utilization. In SBC, all application processing is done on servers while only screen updates are sent to clients. While many SBC encoding techniques have been explored for transmitting these screen updates efficiently, exist...

2016
Tri Dev Acharya Dong Ha Lee In Tae Yang Jae Kang Lee

Water bodies are essential to humans and other forms of life. Identification of water bodies can be useful in various ways, including estimation of water availability, demarcation of flooded regions, change detection, and so on. In past decades, Landsat satellite sensors have been used for land use classification and water body identification. Due to the introduction of a New Operational Land I...

2013
Carmen Maria Livi

RNA-binding proteins interact specifically with RNA strands to regulate important cellular processes. Knowing the binding partners of a protein is a crucial issue in biology and it is essential to understand the protein function and its involvement in diseases. The identification of the interactions is currently resolvable only through in vivo and in vitro experiments which may not detect all b...

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