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Datong Chen

Related publications (28)

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Text Identification in Complex Background using SVM

Jean-Philippe Thiran, Hervé Bourlard, Datong Chen

This paper presents a fast and robust algorithm to identify text in image or video frames with complex backgrounds and compression effects. The algorithm first extracts the candidate text line on the basis of edge analysis, baseline location and heuristic ...

2001

Video OCR for Sport Video Annotation and Retrieval

Hervé Bourlard, Datong Chen

This paper presents a video OCR system that automatically extracts closed captions from video frames as keywords (or as we called "cues") for building annotations of sport videos. In this system, text regions that contain closed captions are first identifi ...

IDIAP2001

Text Enhancement with Asymmetric Filter for Video OCR

Hervé Bourlard, Datong Chen

Stripes are common sub-structures of text characters, and the scale of these stripes varies little within a word. This scale consistency thus provides us with a useful feature for text detection and segmentation. In this paper a new form of filter is deriv ...

2001

Text Enhancement with Asymmetric Filter for Video OCR

Hervé Bourlard, Datong Chen

IDIAP2001

ASYMMETRIC FILTER FOR TEXT RECOGNITION IN VIDEO

Datong Chen

Stripes are a common sub-structure of text characters, and the scale of the stripes does not vary significantly within a character. In this paper a new form of filter is derived from the Gabor filter which can efficiently estimate the scales of such stripe ...

IDIAP2000

Multiple Hypotheses Video OCR

Datong Chen

In this paper, we present a method to improve video OCR with multiple character hypotheses. The text regions in video need to be binarized before work as the input of current OCR system. Tranditional binarization do not use any structural information about ...

2000

A Survey of Text Detection and Recognition in Images and Videos

Datong Chen

A Survey of Text Detection and Recognition in Images and Videos, including the state-of-the-art methods and systems. ...

IDIAP2000

Multiple Hypotheses Video OCR

Datong Chen

IDIAP2000