IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 45, no. 3, page. 538 - 543, 1999-08
IEE PROCEEDINGS-VISION IMAGE AND SIGNAL PROCESSING, vol. 146, no. 4, page. 191 - 197, 1999-08
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, vol. E82D, no. 5, page. 985 - 992, 1999-05
IEEE SIGNAL PROCESSING LETTERS, vol. 6, no. 2, page. 35 - 37, 1999-02