Automatic Detection of Egg Shell Cracks

Kuske, Rachel and Lyder, David and Samuel, Jonathan and Soteros, Chris and Wolfe, David (1998) Automatic Detection of Egg Shell Cracks. Canadian Industrial Problem Solving Workshops > 2nd IPSW [Calgary 1/6/1998 - 5/6/1998].

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Abstract/Summary

The challenge was to find a reliable, non-intrusive means of detecting cracks in eggs. Intensity data from eggs were collected by VisionSmart for the group to analyse. Given the short time period three main questions were addressed.
1) Is there a feature of the intensity data which detects, and discriminates between pinholes, cage marks and cracks?
2) Are there ways to improve the current data collection process?
3) Are there other data collection methods which should be tried?
A partial positive response to 1) is presented and describes the many problems that arose. Some answers to 2) and 3) are also presented.

Item Type:	Study Group Report
Study Group:	Canadian Industrial Problem Solving Workshops > 2nd IPSW [Calgary 1/6/1998 - 5/6/1998]
Company Name:	VisionSmart
Industrial Sector:	Food and Drink Retail
ID Code:	126
Deposited By:	Richard Booth
Deposited On:	24 January 2008

Problem Statement

Eggs are prone to make deformities (cracks, pinholes, cage marks etc). It is not practical to manually 'candle' the eggs. One suggestion is to shine a narrow laser at the eggs and measure the resulting illumination. The problem is to devise an algorithm that takes this information and determines deformations.

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