A New Spatial Encoding Method for Sparse Binary Data

2017 ◽  
Author(s):  
Weiwei Duan ◽  
Jianxin Luo ◽  
Qi Hu ◽  
Guiqiang Ni ◽  
Yi Gao
Keyword(s):  
Binary Data ◽  
Spatial Encoding ◽  
Encoding Method

scholarly journals Hiding a Covert Digital Image by Assembling the RSA Encryption Method and the Binary Encoding Method

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Kuang Tsan Lin ◽  
Sheng Lih Yeh
Keyword(s):  
Digital Image ◽  
Binary Data ◽  
Holographic Image ◽  
Binary Encoding ◽  
Image Dimension ◽  
Encoding Method ◽  
Encryption Method

The Rivest-Shamir-Adleman (RSA) encryption method and the binary encoding method are assembled to form a hybrid hiding method to hide a covert digital image into a dot-matrix holographic image. First, the RSA encryption method is used to transform the covert image to form a RSA encryption data string. Then, all the elements of the RSA encryption data string are transferred into binary data. Finally, the binary data are encoded into the dot-matrix holographic image. The pixels of the dot-matrix holographic image contain seven groups of codes used for reconstructing the covert image. The seven groups of codes are identification codes, covert-image dimension codes, covert-image graylevel codes, pre-RSA bit number codes, RSA key codes, post-RSA bit number codes, and information codes. The reconstructed covert image derived from the dot-matrix holographic image and the original covert image are exactly the same.

A new nonlinear spatial encoding method for cascadable fuzzy logic

1994 ◽  
Vol 107 (5-6) ◽  
pp. 461-470 ◽  
Author(s):  
Senmao Lin ◽  
Itsuo Kumazawa
Keyword(s):  
Fuzzy Logic ◽  
Spatial Encoding ◽  
Encoding Method

A spatial encoding method for measured room impulse responses

2012 ◽  
Vol 132 (3) ◽  
pp. 1913-1913
Author(s):  
Sakari Tervo ◽  
Jukka Pätynen ◽  
Tapio Lokki
Keyword(s):  
Impulse Responses ◽  
Spatial Encoding ◽  
Encoding Method

The Beck Hopelessness Scale

2016 ◽  
Vol 32 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Marianna Szabó ◽  
Veronika Mészáros ◽  
Judit Sallay ◽  
Gyöngyi Ajtay ◽  
Viktor Boross ◽  
...  
Keyword(s):  
Binary Data ◽  
Factor Model ◽  
Clinical Sample ◽  
Analytical Techniques ◽  
Cross Cultural ◽  
Cultural Validity ◽  
Beck Hopelessness Scale ◽  
Method Effects ◽  
Hungarian Population ◽  
Components Analysis

Abstract. The aim of the present study was to examine the construct and cross-cultural validity of the Beck Hopelessness Scale (BHS; Beck, Weissman, Lester, & Trexler, 1974 ). Beck et al. applied exploratory Principal Components Analysis and argued that the scale measured three specific components (affective, motivational, and cognitive). Subsequent studies identified one, two, three, or more factors, highlighting a lack of clarity regarding the scale’s construct validity. In a large clinical sample, we tested the original three-factor model and explored alternative models using both confirmatory and exploratory factor analytical techniques appropriate for analyzing binary data. In doing so, we investigated whether method variance needs to be taken into account in understanding the structure of the BHS. Our findings supported a bifactor model that explicitly included method effects. We concluded that the BHS measures a single underlying construct of hopelessness, and that an incorporation of method effects consolidates previous findings where positively and negatively worded items loaded on separate factors. Our study further contributes to establishing the cross-cultural validity of this instrument by showing that BHS scores differentiate between depressed, anxious, and nonclinical groups in a Hungarian population.

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