Technical feasibility


SECTION I: Testing

1 Has the R & D result been tested?
1a In what mode has the result been tested?  Pilot Application
For the tests is needed large number of test images (several hundred), representing example welds, containing defects of various kinds and software for image processing. For the testing were used Corel Photo Paint, Microsoft Photo Editor and the Special software, which implemented the new method (C++, Windows environment). The special software permits setting the values of the participating parameters. For the testing were developed two approaches of the new method, which comprised different algorithms, and the results were compared and evaluated.
1b.   Please describe and discuss the testing results
The result comprises several new algorithms for image processing, which were implemented in software (C++, Windows environment). For the experiments were used about 400 X-ray images, which contained welding defects of various kind: inclusions, pores, etc. The extraction of all kinds of welding defects was performed successfully, which proved the method efficiency. The extracted defects are suitable for further processing, needed for the evaluation of their size, orientation, etc.
1c. To what extent does the result correspond to the initially defined task?
The results correspond to the initially defined task: the detected defects are visualized quite clearly and the two basic kinds (pores and inclusions) are represented with different brightness. The method permits (when the sensor is known) to define the size of the defect (as a relation between number of pixels and scale coefficient) and the depth of the defect (on the basis of the brightness value). On the basis of the new method could be developed very efficient expert system for nondestructive weld control.  The computational complexity of the method is relatively low and the analysis is suitable for real time applications.

SECTION 2: Current Stage of Development

2a To what extent does the development team have technical resources for supporting the production of a new product[1]? (Researchers, human resources, hardware, etc.)
The R&D result is a result of collective effort and the developers will be available for technical advice if the product is to be produced.
2b What are the technical issues that need to be tackled for full deployment, if needed?
The new product should be used as a basis for the development of an intelligent expert system, able to evaluate the quality of welds in X-ray images. 
2c What additional technical resources are needed for the production of this new product?
If provision of test X-ray images is not possible, the R&D team will need a sensor, able to produce X-ray images of welds.The R&D result should be adapted to one or several known sensors, after which it should be checked in accuracy and efficiency.The accuracy of the method should be evaluated by processing same test images with the new product and with other software products (for example – Corel Photo paint or other similar product for image processing), which comprise various tools for image processing and analysis. Then the results could be compared. If necessary, destructive tests could be also performed, if this will be necessary for the exact evaluation.
2d Overall assessment of the current stage of technical development.
The new algorithms, specially developed for the nondestructive welding defects detection, which should be used as a basis for the creation of the expert system, are already tested.The creation of an expert system requires some more functions to be added to the already existing software and to connect the overall performance to the sensors parameters.

SECTION 3: Deployment

3a Define the demands for large scale production in terms of
  • Materials : kinds , quantities, costs
       Special sensors (X-ray, or other similar sensors), whose output to be used for information analysis
  • technologies, tools, machineries
         No special technologies are needed
  • Staff effort in man/hours or man/months
        About 4 months for the development of the expert system

SECTION 4: Overall Assessment

1 What is you overall assessment of the technical feasibility of the research result?
The research result is technically feasible. For the development of the intelligent expert system are needed about 4 months.
  1 2 3 4 5
Adequacy of testing activity undertaken so far         x
Adequacy and availability of technical resources of the development team         x
Current development stage       x  
Overall technical feasibility         x

[1] Throughout this section by “new product” we mean a product or a service or a technology

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