Mixed-type documents include text, drawings and graphics regions. It is obvious that a technique that can reduce the number of the gray-levels in accordance with the type of each document region could be important for many document applications, such as storage, transmission and recognition. To solve this problem, this paper proposes a new method, called the document multithresholding technique...

The aim of this document is to describe the methods we used in the flowchart recognition task of the CLEF-IP 2012 track. The flowchart recognition task consisted in interpreting flowchart linedrawing images. The participants are asked to extract as much as structural information in these images as possible and return it in a predefined textual format for further processing for the purpose of pa...

Automatic Text location, character recognition and image understanding of a given paper document are main objectives of computer vision area. The rst stage for these problems is extracting text information and separating graphic symbol from texts. Previous text location algorithm could not extract the negative text(e.g., newspaper headline) which is a white colored text on some solid background...

Recent advance of the technologies incorporated in graphics hardware has enabled general-purpose computations on graphics hardware, which can further be used for high-performance computation in low cost. In addition, the graphical processing units (GPUs) on graphics hardware demonstrates a performance/cost ratio superior to central processing units (CPUs) with computations of high arithmetic in...

We present the architecture of a system, based on a PC, covering real-time video processing by integration of live video and computer graphics. The video processing and integration are realized by generation and evaluation of an on-line MIPmap video texture. This new application of a known filtering technique for still textures in the field of live video processing permits an easy and high perf...