A semi-automatic groundtruthing framework for performance evaluation of symbols recognition & spotting

International audienceIn this paper, we are interested with the groundtruthing problem for performance evaluation of symbol recognition & spotting systems. We propose a complete framework based on user interaction scheme through a tactile device, exploiting image processing components to achieve groundtruthing of real-life documents in an semi-automatic way. It is based on a top-down matching algorithm, to make the recognition process less sensitive to context information. We have developed a specific architecture to achieve the recognition in constraint time, working with a sub-linear complexity and with extra memory cost