The imperfect sample points of interpolation based on B-spline suface reconstruction

2013 ◽  
Author(s):  
Tiansong Li ◽  
Xinling Shi ◽  
Yufeng Zhang ◽  
Baolei Li ◽  
Changxing Gou ◽  
...  
Keyword(s):  
B Spline ◽  
Sample Points ◽  
Imperfect Sample

BLIND WATERMARKING OF NON-UNIFORM B-SPLINE SURFACES

2008 ◽  
Vol 08 (03) ◽  
pp. 439-454 ◽  
Author(s):  
SHUSEN SUN ◽  
ZHIGENG PAN ◽  
TAE-WAN KIM
Keyword(s):  
Blind Watermarking ◽  
Knot Insertion ◽  
B Spline ◽  
Original Surface ◽  
Spline Surfaces ◽  
Sign Correlation ◽  
Dct Coefficients ◽  
Sample Points ◽  
Watermarking Scheme ◽  
Correlation Detector

In this paper, we propose a watermarking scheme for non-uniform B-spline (NUBS) surface. Firstly, we first do sampling on a NUBS surface and get the sample points, then the watermark is embedded into the DCT coefficients of the sample points and the watermarked sample points are transformed back, finally the watermarked surface is reconstructed from watermarked sample points using global interpolation. A sign correlation detector is used to test for the presence of the watermark, and the original surface is not required at this stage. Experimental results show that our algorithm can preserve the shape of the original surface within a specified error, and that it is robust against attacks including knot insertion, order elevation, addition of white noise, rotation, scaling, translation and further watermarking.

Subpixel Accurate Calibration of Line-Scan Multi-Spectral Images Using a Polynomial or B-Spline based Registration Model

2017 ◽  
Vol 61 (3) ◽  
pp. 305031-3050311 ◽  
Author(s):  
Timo Eckhard ◽  
Jia Eckhard ◽  
Eva M. Valero ◽  
Javier Hernández-Andrés
Keyword(s):  
B Spline ◽  
Line Scan

DEFORMATION OF B-SPLINE BASED PLASTICINE MATERIAL MODEL IN VIRTUAL REALITY ENVIRONMENT

2017 ◽  
Vol 5 (3) ◽  
pp. 15
Author(s):  
GANDOTRA SANDEEP ◽  
Pungotra Harish ◽  
Moudgil Prince Kumar ◽  
◽  
◽  
...  
Keyword(s):  
Virtual Reality ◽  
Material Model ◽  
Virtual Reality Environment ◽  
B Spline

Extended Cubic Uniform B-spline and α-B-spline

2009 ◽  
Vol 34 (8) ◽  
pp. 980-983 ◽  
Author(s):  
Gang XU
Keyword(s):  
B Spline

Corner detection using multi-scale representation of contour orientation rate based on B-spline

2009 ◽  
Vol 29 (3) ◽  
pp. 725-728
Author(s):  
Ming-jian HONG ◽  
Xiao-hong ZHANG ◽  
Dan YANG
Keyword(s):  
Corner Detection ◽  
B Spline ◽  
Multi Scale
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