Table 5 Processing time and radius results of center point extraction methods.

From: Online high speed detection method for end face quality of cored filter rods under complex conditions

Processing Methods

Processing time (ms)

Radius results (standard filter bars are pixel values of 75)

Least squares circle fitting

5.86

62

Hough’s circular transform

26.77

69

Elliptic fitting

3.53

72(long axis)

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