Patent ID: 6535632
Filing Date: 2003-03-18
Classification: G06K,G06T

Abstract:
A method for segmenting an image frame of pixel data, the image frame including a plurality of pixels, the pixel data corresponding to the pixels, the method comprising:for each pixel of the image frame, converting the corresponding pixel data into hue, saturation, intensity color space to achieve HSI pixel data having a hue component, a saturation component and an intensity component; filtering the HSI pixel data to achieve filtered HSI pixel data, wherein said filtering includes: respectively selecting for each one HSI pixel of the image frame, based upon a value of the corresponding intensity component of said each one HSI pixel of the image frame, a first filter kernel from a plurality of filter kernels; and respectively filtering the saturation component of each one HSI pixel using the first filter kernel selected for said one HSI pixel; identifying presence of an image object in the image frame; and segmenting the image frame to define a set of filtered HSI pixel data corresponding to the image object.