Multi-scale Structural Saliency for Signature Detection

TitleMulti-scale Structural Saliency for Signature Detection
Publication TypeBook Chapters
Year of Publication2007
AuthorsZhu G, Zheng Y, Doermann D, Jaeger S
Book TitleIEEEConference on Computer Vision and Pattern Recognition (CVPR 2007)IEEEConference on Computer Vision and Pattern Recognition (CVPR 2007)
Pagination1 - 8
PublisherMinneapolis, MN

Detecting and segmenting free-form objects from cluttered backgrounds is a challenging problem in computer vision. Signature detection in document images is one classic example and as of yet no reasonable solutions have been presented. In this paper, we propose a novel multi-scale approach to jointly detecting and segmenting signatures from documents with diverse layouts and complex backgrounds. Rather than focusing on local features that typically have large variations, our approach aims to capture the structural saliency of a signature by searching over multiple scales. This detection framework is general and computationally tractable. We present a saliency measure based on a signature production model that effectively quantifies the dynamic curvature of 2-D contour fragments. Our evaluation using large real world collections of handwritten and machine printed documents demonstrates the effectiveness of this joint detection and segmentation approach.