Patent ID: 6728406
Filing Date: 2004-04-27
Classification: G06K

Abstract:
An image analyzing apparatus comprising:a wavelet transformation unit for receiving images to effect a wavelet transformation thereon, wherein said wavelet transformation unit upon reception of a color image in RGB color space transforms said color image received into a color image in YUV space to thereafter effect a wavelet transformation thereon; a layout feature extraction unit determining a layout feature from a coefficient of the lowest frequency band after wavelet transformation, wherein said layout feature extraction unit transforms a coefficient of the lowest frequency band after wavelet transformation into a color representation in another color space matching human senses to thereby determine said layout feature; a shape feature extraction unit Determining a shape feature from a coefficient of the second lowest frequency band after wavelet transformation, wherein said shape feature extraction unit uses only luminance values Y of YUV components constituting said coefficient of said second lowest frequency band after wavelet transformation to thereby determine said shape feature; and a texture feature extraction unit determining a texture feature from the average and deviation of frequency bands excepting the lowest frequency band after wavelet transformation, wherein said texture feature extraction unit determines said texture feature from the average and deviation of only luminance values Y of YUV components constituting coefficients of frequency bands after wavelet transformation.