关键词: 复合板, 瑕疵检测, 零模灰色关联模型, 直方图差分, 自适应检测

Abstract: Target detection is a key step in image processing. In this paper, the adaptive defect detection of composite plate was realized. Firstly, The composite plate image was processed by oriented light compensation, then a new all-zero grey correlation model based on grey system theory was constructed. And then a finite difference adaptive method using gray histogram was adopted to realize the dynamic threshold segmentation. The theory analysis and real application of this method indicate that it has advantages of low false detection rate, high stability, strong adaptive ability, simple algorithm and so on.

Key words: composite plate, defect detection, all-zero grey correlation model, finite difference of gray histogram, adaptive detection