Pattern skeletonization using run-length-wise processing for intersection distortion problem. - David X. Zhong; Hong Yan 001 (Pattern Recognit. Lett., 1999)

Color Space Analysis in Color Image Segmentation. - David X. Zhong (VIP, 2000)

Extraction of embedded and/or line-touching character-like objects. - David X. Zhong (Pattern Recognit., 2002)