You can define 'false colour' using any combination of colours; all you're doing is colour-coding particular areas using a defined code set.
The ultrasound approach is more like the astronomical approach of viewing something through multiple filters and then shifting the wavelengths to the visible. Astronomical images are often false-coloured because they are made up of a set of particular wavelengths - Hα comes immediately to mind.
Of course, ultrasound is a longitudinal wave form, not a transverse waveform. How about thinking of a multi-frequency ultrasound as a polyphonic piece of music instead of a single tone?
Hmm... there's an art idea - transforming your ultrasound baby scans into orchestral pieces.
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Date: 2009-01-09 03:54 pm (UTC)The ultrasound approach is more like the astronomical approach of viewing something through multiple filters and then shifting the wavelengths to the visible. Astronomical images are often false-coloured because they are made up of a set of particular wavelengths - Hα comes immediately to mind.
Of course, ultrasound is a longitudinal wave form, not a transverse waveform. How about thinking of a multi-frequency ultrasound as a polyphonic piece of music instead of a single tone?
Hmm... there's an art idea - transforming your ultrasound baby scans into orchestral pieces.