Efficient ray tracing of volume data
ACM Transactions on Graphics (TOG)
Fast volume rendering using a shear-warp factorization of the viewing transformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
High-quality volume rendering using texture mapping hardware
HWWS '98 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
The VolumePro real-time ray-casting system
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
High-quality pre-integrated volume rendering using hardware-accelerated pixel shading
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Shear-Warp deluxe: the Shear-Warp algorithm revisited
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
Computer
Integrating pre-integration into the shear-warp algorithm
VG '03 Proceedings of the 2003 Eurographics/IEEE TVCG Workshop on Volume graphics
Study and application of medical image visualization technology
ICDHM'07 Proceedings of the 1st international conference on Digital human modeling
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As shear-warp volume rendering is the fastest rendering method, image quality is not good as that of other high-quality rendering methods. In this paper, we propose two methods to improve the image quality of shear-warp volume rendering. First, the supersampling is performed in an intermediate image space. Then is proposed an efficient method to transform between the volume and the image coordinates at the arbitrary ratio. Second, the pre-integrated rendering technique is utilized for shear-warp rendering. To do this, a new data structure called overlapped min-max block is used. Using this structure, the empty space leaping can be performed so the rendering speed is maintained even though when the pre-integrated rendering is applied. Consequently, shear-warp rendering can generate on high-quality images comparable to those generated by the ray-casting without degrading the speed.