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INTRODUCTION TO LASER SCANNING MICROSCOPY
LSM 510
Functions
B 40-051 e 07/98
5-63
Render - Alpha: Method Description
Each
Output
pixel is a weighted sum of the
Input
voxels along a ray in view direction through the
Input
sequence. Each
Input
voxel has an opacity value, dependent only on its grey value. The opacity values
are defined by the parameters
Threshold
,
Ramp
, and
Max. Opacity
.
Accumulation of pixels proceeds along the ray from back to front, i.e. from far pixels to near pixels. If a
new pixel is added, it increases the result intensity by its grey value weighted by the opacity value, and
attenuates the previously accumulated intensity according to the opacity value. Full intensity stops
accumulation.
This calculation must be repeated for each pixel of the ray to generate one
Output
pixel. Then for each
Output
pixel to produce a 2D
Output
image for the selected view-angle. Then for each view-angle to
produce an output sequence for
Number of Views
different view angles.
Render - References
[1] J.D. Foley,A.van Dam, S. K. Feiner, J.F.Hughes, Computer Graphics: Principles and Practice, Addison
Wesley, Reading, MA, 1990.
[2] M. Levoy, Display of Surfaces from Volume Data, IEEE Computer Graphics & Applications, May 1988,
29-37.
[3] J. Ylä-Jääski, F.Klein, O. Kübler, Fast Direct Display of Volume Data for Medical Diagnosis,
VGIP:Graphical Models and Image Processing 53,1991,7-18.
[4] K.H. Höhne, R. Bernstein, Shading 3D-Images from CT Using Gray-Level Gradients, IEEE Transactions
on Medical Imaging, 5, 1986, 45-47.
[5] D.Gordon, R.A. Reynolds, Image Space Shading of 3-Dimensional Objects, CVGIP 29, 1985, 361-376.
Summary of Contents for LSM 510 Inverted
Page 1: ...I LSM 510 Laser Scanning Microscope Operating Manual...
Page 4: ...INTRODUCTION LSM 510 IV B 40 051 e 07 98...
Page 10: ...INTRODUCTION LSM 510 X B 40 051 e 07 98...
Page 12: ...NOTES ON DEVICE SAFETY Contents LSM 510 1 2 B 40 051 e 07 98...
Page 22: ...NOTES ON DEVICE SAFETY Warning and information labels LSM 510 1 12 B 40 051 e 07 98...
Page 24: ...LSM 510 SETUP REQUIREMENTS Contents LSM 510 2 2 B 40 051 e 07 98...
Page 34: ...LSM 510 SETUP REQUIREMENTS Laser Module VIS Laser Module UV LSM 510 2 12 B 40 051 e 07 98...
Page 36: ...INTRODUCTION TO LASER SCANNING MICROSCOPY Contents LSM 510 3 2 B 40 051 e 07 98...
Page 48: ...INTRODUCTION TO LASER SCANNING MICROSCOPY Contents LSM 510 3 2 B 40 051 e 07 98...
Page 231: ...OPERATION LSM 510 Annex B 40 051 e 07 98 4 173 Fig 4 171 Change over of the Scanning Module...
Page 256: ...INTRODUCTION TO LASER SCANNING MICROSCOPY Contents LSM 510 5 2 B 40 051 e 07 98...