MedicalVisualization

Iso-Contouring Hardware Example

Iso-Contouring With Graphics Hardware | | OpenGL Shader Editor

Valley in Croatia with contours and shaded relief:

Croatia-ContoursHW

Q What is iso contouring good for in medical visualization?

For quantitative information visualization purposes!

Example: CT cross section shows density values qualitatively as greyscale values. White equals high CT values and black equals low CT values, but we cannot discover the absolute CT values from the grey scale image. To make a quantitative analysis, we can overlay the cross section with iso lines for particular Hounsfield values (e.g. −100, 0 and 500).

Iso-Contouring With Graphics Hardware | | OpenGL Shader Editor

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