scholarly journals Watermarking in halftone image with maximal child node dependence coefficients in wavelet domain

2019 ◽  
Vol 1423 ◽  
pp. 012035
Author(s):  
Hangyu Gong ◽  
Zifen He

The movement along the glide path of an unmanned aerial vehicle during landing on an aircraft carrier is investigated. The implementation of this task is realized in the conditions of radio silence of the aircraft carrier. The algorithm for treatment information from an optical landing system installed on an aircraft carrier is developed. The algorithm of the color signal recognition assumes the usage of the image frame preliminary treatment method via a downsample function, that performs the decimation process, the HSV model, the Otsu’s method for calculating the binarization threshold for a halftone image, and the method of separating the connected Two-Pass components. Keywords unmanned aerial vehicle; aircraft carrier; approach; glide path; optical landing system; color signal recognition algorithm; decimation; connected components; halftone image binarization


2013 ◽  
Vol 32 (2) ◽  
pp. 493-495
Author(s):  
Shuang WANG ◽  
Guang-qiu CHEN ◽  
Ya-ji SONG ◽  
Jun-xi SUN

2018 ◽  
Vol 13 (5) ◽  
pp. 553-563 ◽  
Author(s):  
Xiaolei Zhang ◽  
Guishan Zhang ◽  
Yangjiang Yu ◽  
Guocheng Pan ◽  
Haitao Deng ◽  
...  

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