نتایج جستجو برای: quickbird

تعداد نتایج: 789  

2008
B. Wuest

The automatic segmentation of land cover features, within very high resolution (VHR) satellite imagery, is a complex task which is important to geo-spatial applications such as urban planning, crop monitoring and change detection. The dynamic grey-value variety of VHR imagery, along with environmental interference factors, such as cloud cover and poor lighting, impede the automation of land cov...

2008
P. Xiao

Image segmentation is a valuable approach that performs an object-based rather than a pixel-based analysis of high-spatial resolution satellite image. A multiscale approach for segmenting the pan-sharpened multispectral QuickBird-2 image based on vector field model is proposed. The edge features are obtained using the first fundamental form of the multispectral bands. The response of log Gabor ...

Journal: :IEEE/CAA Journal of Automatica Sinica 2022

Dear Editor, In pansharpening task, the most existing deep-learning-based pan-sharpening methods fail to fully utilize different level features, inevitably leading spectral or spatial distortions. To address this challenge, in letter, we propose a dual-branch multi-level feature aggregation network for (DMFANet). The experimental results on WorldView-II (WV-II) and QuickBird (QB) dataset confir...

Journal: :Geoid: Jurnal Geodesi, Surveying, GPS, GIS, Penginderaan Jauh, Hidrografi, Pertanahan 2021

Pemanfaatan citra satelit resolusi tinggi dalam pemetaan kawasan perkotaan telah sangat banyak digunakan berbagai aplikasi, salah satunya untuk ekstraksi bangunan. Terdapat dua pendekatan yang dapat bangunan dengan menggunakan metode penginderaan jauh yaitu klasifikasi berbasis piksel dan objek. Akan tetapi memiliki kelemahan mengabaikan aspek spasial sehingga mengurangi akurasi dari hasil rent...

2005
A. Damm P. Hostert S. Schiefer

Accurate analyses concerning the ecological value of urban railway sites are required to ensure a sustainable development of inner urban open space. One problem in this context is the great heterogeneity of such areas. New opportunities to investigate heterogeneous urban areas arose with the advent of geometric very high resolution (VHR) satellite data. A bundle of panchromatic and multispectra...

Journal: :Remote Sensing 2012
Sarah A. Lewis Peter R. Robichaud Andrew Thomas Hudak Brian Austin Robert J. Liebermann

Remotely sensed imagery provides a useful tool for land managers to assess the extent and severity of post-wildfire salvage logging disturbance. This investigation uses high resolution QuickBird and National Agricultural Imagery Program (NAIP) imagery to map soil exposure after ground-based salvage operations. Three wildfires with varying post-fire salvage activities and variable ground truth d...

2013
Goutam Das

The effect of landslide and its consequences always impact negatively on the inhabitants of a certain region or zone. The overall damage of socioeconomic structure and loss of human lives always a matter of concern. Numerous approaches of landslide susceptibility mapping, hazard analysis have been developed and in most cases remote sensing, Geographical Information System (GIS) remains the core...

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