A coarse-to-fine auto-focusing algorithm for microscopic image

Yung Chun Liu, Fu Yu Hsu, Hsin Chen Chen, Yung Nien Sun, Yi Ying Wang

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

Auto-focusing is an important step in development a computer-aided evaluation system for diagnostic microscope. An auto-focusing algorithm can identify the best focus reliably and objectively, and prevents the tedious and time consuming steps of manual focusing. In this paper, a coarse-to-fine auto-focusing method is proposed based on a multi-resolution scheme which locates the focusing range by quadratic polynomial fitting in low resolution and achieves accurate focal point by using binary search in fine resolution. An algorithm was developed to identify the focal point under multiple image resolution with the Sum of Modified Laplacian (SML) as the focusing value. The main contribution of this system is to reduce the auto-focusing time. Comparing with the conventional binary search, the coarse-to-fine method only needs half of the time to accomplish auto-focusing. Using the proposed technique, the efficiency of auto-focusing system has been significantly improved.

原文English
主出版物標題Proceedings 2011 International Conference on System Science and Engineering, ICSSE 2011
頁面416-419
頁數4
DOIs
出版狀態Published - 2011
事件2011 International Conference on System Science and Engineering, ICSSE 2011 - Macao, China
持續時間: 2011 六月 82011 六月 10

出版系列

名字Proceedings 2011 International Conference on System Science and Engineering, ICSSE 2011

Other

Other2011 International Conference on System Science and Engineering, ICSSE 2011
國家China
城市Macao
期間11-06-0811-06-10

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering

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