Capsule endoscope with a dynamic adjustable color illumination spectrum

A capsule endoscope with a dynamic adjustable color illumination spectrum, the capsule endoscope comprising:

• a capsule-shaped body having at least one transparent optical end, the capsule-shaped body enclosing electronic components therein;
• an image sensor housed interior to the capsule-shaped body behind the at least one transparent optical end, the image sensor configured to record in-vivo images;
• a first group of light emitting diodes (LEDs) each having a single first color, second group of LEDs each having a single second color, and third group of LEDs having a single third color, each group configured to emit light to be recorded by the image sensor, the first, second, and third group of single color LEDs corresponding to a plurality of different respective wavelength subranges, wherein the first color, the second color and the third color are different;
• and
• a driving circuit configured to send a driving current to independently activate each of the first, second, and third group of single color LEDs during entirely non-overlapping time pulses that occur sequentially, such that, one of the first, second, or third single color group of LEDs is independently activated at any one time to simulate a white light or multi-color illumination spectrum over a plurality of time pulses,
• wherein different color groups of LEDs emit light absorbed by biological tissue at different respective penetrative depths, such that the discrepancy between the penetration depths generates a depth profile of the illuminated biological tissue, and comprising one or more processors configured to simulate an image of the biological tissue based on the depth profile.