The following publications are possibly variants of this publication:
- Ruler based automatic C-arm image stitching without overlapping constraintCheng Chen, Risto Kojcev, C. Haschmann, Tomas Fekete, Lutz-Peter Nolte, Guoyan Zheng. curac 2013: 212-215
- Ruler Based Automatic C-Arm Image Stitching Without Overlapping ConstraintCheng Chen, Risto Kojcev, Daniel Haschtmann, Tamas Fe-Peterkete, Lutz-Peter Nolte, Guoyan Zheng. jdi, 28(4):474-480, 2015. [doi]