Patent ID: 6587586
Filing Date: 2003-07-01
Classification: G06K

Abstract:
An apparatus for extracting an image representing textual information from a video sequence, comprising:a source of a video sequence having a plurality of frames, each containing an image of the textual information; and a processor, coupled to the video sequence source, responsive to all of the plurality of frames, for generating a single array representing an image of the textual information, wherein the processor comprises: a circuit, coupled to the video sequence source, for locating the textual information image in each of the plurality of frames and generating a stack of text image arrays, respectively corresponding to the plurality of frames, each containing an image which is substantially only of the textual information; and a circuit, coupled to the locating circuit, and responsive to all of the arrays in the stack of text arrays, for extracting an image of the textual information into a single array, wherein the extracting circuit comprises: circuitry, responsive to the stack of text arrays, for generating a stack of binary arrays, respectively corresponding to the stack of text arrays, each binary array containing binary data representing the textual information image in the corresponding text array; circuitry, responsive to the stack of binary arrays, for performing a genetic algorithm search using the stack of binary arrays as an initial population to find an optimum binary image; and providing the optimum binary image in the single array as the textual information image.