Study on wavelet analysis of wear particle image in running-in process of marine diesel engine;

Based on large numbers of data of oil analysis and cases of fault diagnosis,conventional computing formula of threshold of diagnosis judgement was improved,softwares for computing diagnosis judgement and managing debris atlas were developed.

The Study on the Segmentation of Circle-Like Particle Images;

Firstly, this thesis introduces some pre-processing, image segmentation and binary image processing techniques about particle image processing and analysis.

In the particle images segmentation,the objects are always touched or overlapped each other,which makes it hard for image consequent processing.