Scene text recognition using co-occurrence of histogram of oriented gradients

S Tian, S Lu, B Su, CL Tan - 2013 12th International …, 2013 - ieeexplore.ieee.org
2013 12th International Conference on Document Analysis and …, 2013ieeexplore.ieee.org
Scene text recognition is a fundamental step in End-to-End applications where traditional
optical character recognition (OCR) systems often fail to produce satisfactory results. This
paper proposes a technique that uses co-occurrence histogram of oriented gradients (Co-
HOG) to recognize the text in scenes. Compared with histogram of oriented gradients (HOG),
Co-HOG is a more powerful tool that captures spatial distribution of neighboring orientation
pairs instead of just a single gradient orientation. At the same time, it is more efficient …
Scene text recognition is a fundamental step in End-to-End applications where traditional optical character recognition (OCR) systems often fail to produce satisfactory results. This paper proposes a technique that uses co-occurrence histogram of oriented gradients (Co-HOG) to recognize the text in scenes. Compared with histogram of oriented gradients (HOG), Co-HOG is a more powerful tool that captures spatial distribution of neighboring orientation pairs instead of just a single gradient orientation. At the same time, it is more efficient compared with HOG and therefore more suitable for real-time applications. The proposed scene text recognition technique is evaluated on ICDAR2003 character dataset and Street View Text (SVT) dataset. Experiments show that the Co-HOG based technique clearly outperforms state-of-the-art techniques that use HOG, Scale Invariant Feature Transform (SIFT), and Maximally Stable Extremal Regions (MSER).
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