Efficient ray tracing of volume data
ACM Transactions on Graphics (TOG)
Footprint evaluation for volume rendering
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Octrees for faster isosurface generation
ACM Transactions on Graphics (TOG)
ACM Transactions on Graphics (TOG)
Techniques for speeding up high-quality perspective maximum intensity projection
VIP '94 The international conference on volume image processing on Volume image processing
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
Accelerated volume rendering and tomographic reconstruction using texture mapping hardware
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Visibility culling using hierarchical occlusion maps
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
The VolumePro real-time ray-casting system
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
HWWS '00 Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Accelerating volume rendering with quantized voxels
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
Principles of Digital Image Synthesis
Principles of Digital Image Synthesis
A new object-order ray-casting algorithm
Proceedings of the conference on Visualization '02
Interactive Ray Tracing for Volume Visualization
IEEE Transactions on Visualization and Computer Graphics
Efficient visualization of large medical image datasets on standard PC hardware
VISSYM '03 Proceedings of the symposium on Data visualisation 2003
Interactive Maximum Projection Volume Rendering
VIS '95 Proceedings of the 6th conference on Visualization '95
Multiresolution maximum intensity volume rendering by morphological pyramids
EGVISSYM'01 Proceedings of the 3rd Joint Eurographics - IEEE TCVG conference on Visualization
Technical Section: Accelerated MIP based on GPU using block clipping and occlusion query
Computers and Graphics
CGIM '07 Proceedings of the Ninth IASTED International Conference on Computer Graphics and Imaging
Feature enhancement using locally adaptive volume rendering
VG'07 Proceedings of the Sixth Eurographics / Ieee VGTC conference on Volume Graphics
Depth-enhanced maximum intensity projection
VG'10 Proceedings of the 8th IEEE/EG international conference on Volume Graphics
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Many techniques have already been proposed to improve the efficiency of maximum intensity projection (MIP) volume rendering, but none of them considered the possible hypothesis of a better complexity than either O(n) for finding the maximum value of n samples along a ray or O(n3) for an object-order algorithm. Here, we fully model and analyze the use of octrees for MIP, and we mathematically show that the average MIP complexity can be reduced to O(n2) for an object-order algorithm, or to O(log(n)) per ray when using the image-order variant of our algorithm. Therefore, this improvement establishes a major advance for interactive MIP visualization of large-volume data.In parallel, we also present an object-order implementation of our algorithm, satisfying the theoretical O(n2) result. It is based on hierarchical occlusion maps that perform on-the-fly visibility of the data, and our results show that it is the most efficient solution for MIP available to date.