Today I read a paper titled “Improved visualisation of brain arteriovenous malformations using color intensity projections with hue cycling”
The abstract is:
Color intensity projections (CIPs) have been shown to improve the visualisation of greyscale angiography images by combining greyscale images into a single color image.
A key property of the combined CIPs image is the encoding of the arrival time information from greyscale images into the hue of the color in the CIPs image.
A few minor improvements to the calculation of the CIPs image are introduced that substantially improve the quality of the visualisation.
One improvement is interpolating of the greyscale images in time before calculation of the CIPs image.
A second is the use of hue cycling – where the hue of the color is cycled through more than once in an image.
The hue cycling allows the variation of the hue to be concentrated in structures of interest.
An angiogram of a brain is used to demonstrate the substantial improvements hue cycling brings to CIPs images.
A third improvement is the use of maximum intensity projection for 2D rendering of a 3D CIPs image volume.
A fourth improvement allows interpreters to interactively adjust the phase of the hue via standard contrast-brightness controls using lookup tables.
Other potential applications of CIPs are also mentioned.