Landsat 7 returns first images
نویسندگان
چکیده
منابع مشابه
Block Adjustement of Landsat-7 Etm Images
This research study shows the potential of large image-block adjustment with nadir viewing sensor images. The method uses the geometric correction system developed for multi-source images at the Canada Centre for Remote Sensing. The results with 15 Landsat-7 ETM images show that the same accuracy can be obtained with a large image block than with a single image using the same number of ground c...
متن کاملUsing Landsat-7 Images to Update Canadian National Topographic Data
Natural Resources Canada's Centre for Topographic Information has a significant collection of topographic data at the 1:50 000 scale. The extent of the Canadian landmass makes it very difficult to update these data on a continuing basis. Following production of national Landsat-7 orthoimages coverage produced in partnership with more than 20 Canadian organisations, a project for updating topogr...
متن کاملSurvey on Gap Filling Algorithms in Landsat 7 Etm+ Images
In remote sensing images the gapping is a known phenomenon. There are several reasons for image gaps, e.g. shadowed area for SAR data sets, cloud coverage for optical imagery and instrument errors such as SLC-off failure. On May 13, 2003 the Scan Line Corrector (SLC) of Landsat 7 Enhanced Thematic Mapper Plus (ETM+) sensor failed permanently causing around 20% of pixels per scene not scanned wh...
متن کاملcomparison of gap filling methods in landsat 7 etm+ images to estimate crop coefficient
landsat 7 etm+ data is widely used in studies of the spatial distribution kc and vegetation cover parameters in regional and global scales but slc failure has greatly reduces its usefulness. additionally, the failure is permanent and has failed subsequent attempts to recover the slc, so required and practical way to address this problem is filling the pixels of missed data in the slc-off images...
متن کاملBlock Bundle Adjustment of Landsat 7 ETM+ Images over Mountainous Areas
This research study showed the potential of block bundle adjustment with nadir viewing sensor images, such as Landsat 7 ETM . The method is based on the 3D analytical geometric model developed for multisensor images at the Canada Centre for Remote Sensing, Natural Resources Canada. Different block sizes and configurations were tested and compared using an image bundle adjustment. The different ...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 1999
ISSN: 0096-3941
DOI: 10.1029/99eo00160