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Viser treff 1-30 av 30

2017
1 Eschenburg, Jost-Hinrich; Rivertz, Hans Jakob.
The complete cartwheel tiling. Journal of Geometry 2017 ;Volum 108.(2) s. 703-717
NTNU Untitled
 
2 Mackiewicz, Michal; Finlayson, Graham; Rivertz, Hans Jakob.
Metamer Mismatch Volumes Using Spherical Sampling. I: 25th Color and Imaging Conference: Color Science and Engineering Systems, Technologies, and Applications, Final program and proceedings;. The Society for Imaging Science and Technology 2017 ISBN 9780892083275. s. 88-92
NTNU Untitled
 
2016
3 Finlayson, Graham; Mackiewicz, Michal; Rivertz, Hans Jakob.
Computing the object colour solid using spherical sampling. PICS 2016; 2016-09-14 - 2016-09-16
NTNU Untitled
 
2015
4 Alsam, Ali; Farup, Ivar; Rivertz, Hans Jakob.
Iterative sharpening for image contrast enhancement. I: 2015 Colour and Visual Computing Symposium (CVCS). IEEE conference proceedings 2015 ISBN 978-1-4799-1765-5. s. -
NTNU Untitled
 
5 Alsam, Ali; Rivertz, Hans Jakob.
Fast scale space image decomposition. I: IWSSIP 2015, 22nd International Conference on Systems, Signals and Image Processing; 10 – 12 September 2015, London, United Kingdom. IEEE conference proceedings 2015 ISBN 978-1-4673-8353-0. s. 17-20
NTNU Untitled
 
6 Rivertz, Hans Jakob.
Self-similar aperiodic patterns with 9-fold symmetry. Journal of Number Theory 2015 ;Volum 155. s. 100-110
NTNU Untitled
 
2014
7 Eschenburg, Jost-Hinrich; Rivertz, Hans Jakob.
Self similarity of dihedral tilings. Journal of Algebra 2014 ;Volum 405. s. 69-74
NTNU Untitled
 
8 Rivertz, Hans Jakob; Alsam, Ali.
Drawing Parrots with Charcoal. I: Image Analysis and Recognition, 11th International Conference, ICIAR 2014, Vilamoura, Portugal, October 22-24, 2014, Proceedings, Part I. Springer 2014 ISBN 978-3-319-11758-4. s. 159-166
NTNU Untitled
 
2013
9 Alsam, Ali; Rivertz, Hans Jakob.
Color Edge Preserving Smoothing. I: Advances in Visual Computing, 9th International Symposium, ISVC 2013. Springer 2013 ISBN 978-3-642-41913-3. s. 79-86
NTNU Untitled
 
10 Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet.
What the eye did not see--a fusion approach to image coding. International journal on artificial intelligence tools 2013 ;Volum 22.(6) s. -
NTNU Untitled
 
11 Rivertz, Hans Jakob.
On real local isometric immersions of CQ^2_c into CP^3. Journal of Geometry 2013 ;Volum 104.(2) s. 357-374
NTNU Untitled
 
12 Rivertz, Hans Jakob.
On those ordinary differential equations that are solved exactly by the improved Euler method. Archivum Mathematicum 2013 ;Volum 49.(1) s. 29-34
NTNU Untitled
 
2012
13 Alsam, Ali; Rivertz, Hans Jakob.
Algebraic color to grayscale. I: Proceedings of the 14th IASTED International Conference on Signal and Image Processing. ACTA Press 2012 ISBN 978-0-88986-928-8. s. 198-203
NTNU Untitled
 
14 Alsam, Ali; Rivertz, Hans Jakob; Sharma, Puneet.
What the Eye Did Not See – A Fusion Approach to Image Coding. I: Advances in Visual Computing ; 8th International Symposium, ISVC 2012, Rethymnon, Crete, Greece, July 16-18, 2012, Revised Selected Papers, Part II. Springer 2012 ISBN 978-3-642-33191-6. s. 199-208
NTNU Untitled
 
15 Røe, Per; Arnesen, Ragni Ryvold; Danielsson, Jerker; Vestgården, Jørn Inge; Rivertz, Hans Jakob; Boudko, Svetlana; Kristoffersen, Thor.
TrueGen 4.0 Design. Oslo: Norsk Regnesentral 2012 54 s. NR-notat(DART/11/2012)
NR Untitled
 
2011
16 Alsam, Ali; Rivertz, Hans Jakob.
Constrained Gradient Integration for Improved Image Contrast. I: Proceedings of the 13th IASTED International Conference on Signal and Image Processing. ACTA Press 2011 ISBN 978-0-88986-908-0. s. 13-18
NTNU Untitled
 
17 Alsam, Ali; Rivertz, Hans Jakob.
Constrained gradient integration for improved image contrast. Signal and Image Processing (SIP 2011); 2011-12-14 - 2011-12-16
NTNU Untitled
 
18 Alsam, Ali; Rivertz, Hans Jakob.
Fast Edge Preserving Smoothing Algorithm. I: Proceedings of the 13th IASTED International Conference on Signal and Image Processing. ACTA Press 2011 ISBN 978-0-88986-908-0. s. 8-12
NTNU Untitled
 
19 Alsam, Ali; Rivertz, Hans Jakob.
Fast edge preserving smoothing algorithm. Signal and Image Processing - SIP 2011; 2011-12-14 - 2011-12-16
NTNU Untitled
 
20 Rivertz, Hans Jakob.
On local isometric immersions into complex and quaternionic projective spaces. Archivum Mathematicum 2011 ;Volum 47.(4) s. 251-256
NTNU Untitled
 
2009
21 Rivertz, Hans Jakob.
On an invariant on isometric immersions into spaces of constant sectional curvature. Ukrainian Mathematical Journal 2009 ;Volum 61.(12) s. 1946-1955
NTNU Untitled
 
2007
22 Rivertz, Hans Jakob; Eschenburg, Jost-Hinrich.
Self similar symmetric planar tilings. Journal of Geometry 2007 ;Volum 87. s. 55-75
NTNU Untitled
 
2005
23 Østvold, Bjarte M.; Rivertz, Hans Jakob.
Performance evaluation of the Velocity Database Engine. : 2005 18 s. (DART/03/05)
NTNU Untitled
 
24 Danielsson, Jerker; Groven, Arne-Kristian; Kristoffersen, Thor; Rivertz, Hans Jakob; Skomedal, Åsmund.
Elektroniske spor. : 2005 (ISBN 978-82-53-90516-7) 65 s. (1008)
NR NTNU Untitled
 
25 Rivertz, Hans Jakob.
Bluetooth security. : 2005 15 s. (DART/05/05)
NTNU Untitled
 
2004
26 Boudko, Svetlana; Rivertz, Hans Jakob.
The NR JPEG 2000-codec. Oslo: Norsk Regnesentral 2004 19 s. NR-notat(DART/08/04)
NR NTNU Untitled
 
27 Kristoffersen, Thor; Vestgården, Jørn Inge; Rivertz, Hans Jakob.
Design and Implementation of the Channel-S Streaming System. Oslo: Norsk Regnesentral 2004 22 s. NR-notat(DART/07/04)
NR NTNU UiO Untitled
 
2003
28 Aredo, Demissie; Rivertz, Hans Jakob; Vestgården, Jørn Inge.
LBS System Architecture with Privacy. Ukjent 2003 ;Volum 2003. s. 6-
NR Untitled
 
2002
29 Arnesen, Ragni Ryvold; Huseby, Ragnar Bang; Rivertz, Hans Jakob; Røe, Per; Snekkenes, Einar; Vestgården, Jørn Inge.
Replacement of random number generator in Norsk Tipping's random number draw system. Oslo: Norsk Regnesentral 2002 40 s. NR-notat(GEM/02/02)
NR NTNU UiO Untitled
 
2001
30 Arnesen, Ragni Ryvold; Aredo, Demissie; Huseby, Ragnar Bang; Rivertz, Hans Jakob; Rue, Håvard; Snekkenes, Einar; Vestgården, Jørn Inge.
Random Number Draw System - Design. Oslo: Norsk Regnesentral 2001 81 s.
NR Untitled