© Vladimir Kovalevsky 2019
Vladimir KovalevskyModern Algorithms for Image Processinghttps://doi.org/10.1007/978-1-4842-4237-7_12

12. Recognition and Measurement of Circular Objects

Vladimir Kovalevsky1 
Berlin, Germany
This chapter describes a method of recognizing and measuring the parameters of objects that have a boundary shape similar to a circle. We use a modified method of least squares I developed some years ago for checking the quality of solder bumps in wafers. Here we describe a development of this method that can be applied to any color or grayscale images to recognize objects with a boundary that approximates a circle. The method calculates the estimates of the radius and the center coordinates. Figure 12-1 shows an example using the ...

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