Defect edge extraction of X image on carbon product;

The homogeneous structure and influence factors of carbon products are analyzed,the spread si tuation of ultrasonic speed in carbon product and characteristic with homogeneous structure in carbon product,and the measurment ways for graphitic electrod using ultrasonic speed in independent-union are introduced.

In order to segmentation defects quickly and exactly, according to the characteristic of x-ray detection images of carbon product, defect segmentation method that threshold-construction based on iteration links mathematics morphology is advanced.

X-ray automatic inspection techniques for carbon product defects;

Defect feature selection of X-ray image on carbon product;

In this paper,the effect of coal tar pitch physical chemistry target on carbon product quality is analysed.

The nodestructive testing was used to detect the electric carbon product goods.

Automatical defect extraction and segmentation in X-ray images of carbon produce;

Wavelet edge extraction on X-ray images of carbon produce;