Patent ID: 6956602
Filing Date: 2005-10-18
Classification: A61B,H04N

Abstract:
1. An electronic endoscope comprising: a color signal formation circuit that forms predetermined color signals based on signals captured by an image pickup element; a binarization circuit that inputs color signals other than a red signal output from said color signal formation circuit and generates binarized image signals; an edge detection circuit that inputs binarized signals output from said binarization circuit and detects blood vessel positions in an image; a chroma correction circuit that adjusts chroma of the blood vessel image based on the blood vessel position signals output from said edge detection circuit and said color signals, wherein said color signal formation circuit forms red, green and blue color signals and said binarization circuit forms a binarized image by using the green signal or blue signal; and wherein said chroma correction circuit is designed to increase chroma of the blood vessel image.