Local maximum intensity projection
Encyclopedia
In scientific visualization, a Local Maximum Intensity projection (LMIP) is a volume rendering method for 3D data, that is proposed as an improvement to the Maximum Intensity Projection
(MIP). Where the MIP projects the maximum intensity that falls in the way of parallel rays traced from the viewpoint, LMIP takes the first local maximum value, that is above a certain threshold.
In general, this technique is faster, because we can terminate the ray as soon as we found the first local maxima matching our criteria. It is also said that this technique produced better results, because it somehow models occlusion.
Maximum intensity projection
In scientific visualization, a maximum intensity projection is a volume rendering method for 3D data that projects in the visualization plane the voxels with maximum intensity that fall in the way of parallel rays traced from the viewpoint to the plane of projection...
(MIP). Where the MIP projects the maximum intensity that falls in the way of parallel rays traced from the viewpoint, LMIP takes the first local maximum value, that is above a certain threshold.
In general, this technique is faster, because we can terminate the ray as soon as we found the first local maxima matching our criteria. It is also said that this technique produced better results, because it somehow models occlusion.
Referenced
- Sato Y., Shiraga N., Nakajima S., Tamura S., and Kikinis R.: Local Maximum Intensity Projection (LMIP): A New Rendering Method for Vascular Visualization, Journal of Computer Assisted Tomography, Vol. 22, No.6, pp. 912-917, 1998. http://www.image.med.osaka-u.ac.jp/member/yoshi/paper/lmip.pdf