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Earthquake is one of the most destructive natural disasters. Lushan Ya'an earthquake occurred in April 20, 2013 caused a wide range of road damage. The earthquake made Baoxing country become an island and rescue was difficult to carry out. The secondary disaster caused by earthquakes is one of the main causes of road damage. According to the present situation of damaged road extraction, a new method...
In this paper, we propose a color images steganography. Firstly, because modification of pixel of image edges is less sensitive to human eye, the edge or texture in one plane is detected by Sobel edge detection operator and the largest certain number of gradients are selected as embedding positions. Secondly, because of strong relevance in gradient among R, G, and B planes, the corresponding LSB (least...
Using functional magnetic resonance imaging (fMRI), to observe the changes of cerebral functional cortex in prelingual deaf singers for Chinese sign language(CSL). Materials and methods: 14 prelingual deaf singers (PDS) (group I), 13 hearing non-signers (HnS) (group II), 11 hearing native signers (HNS) (group III) and 12 hearing late signers (HLS) (group IV) were scanned on 1.5T MRI scanner while...
Wetland is a kind of natural resource with fast dynamic changing. The study of wetland information extracting way which is fast and measurable is front of wetland remote sensing. SPOT5 imagery has high spatial resolution and multi-spectral resolution, which provided a rich, reliable and accurate source data for wetland resources investigation. This paper took the Nansihu wetlands as the study area...
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