วารสารวิชาการเทคโนโลยีอุตสาหกรรม (J. Ind. Tech.) อยู่ในฐานข้อมูล TCI กลุ่ม 2 (2563) มีค่า JIF = 0.094 | The Journal of Industrial Technology (J. Ind. Tech.) is indexed in TCI Tier 2 (2020) with impact factor, JTIF 0.094

Articles

Iris Region and Bayes Classifier for Robust Open or Closed Eye Detection

Computer Engineering

This paper presents a robust method to detect sequence of state open or closed of eye in low-resolution image which can finally lead to efficient eye blink detection for practical use. Eye states and eye blink detection play an important role in human-computer interaction (HCI) systems. Eye blinks can be used as communication method for people with severe disability providing an alternate input modality to control a computer or as detection method for a driver s drowsiness. The proposed approach is based on an analysis of eye and skin in eye region image. Evidently, the iris and sclera regions increase as a person opens an eye and decrease while an eye is closing. In particular, the distributions of these eye components, during each eye state, form a bell-like shape. By using color tone differences, the iris and sclera regions can be extracted from the skin. Next, a naive Bayes classifier effectively classifies the eye states. Further, a study also shows that iris region as a feature gives better detection rate over sclera region as a feature. The approach works online with low-resolution image and in typical lighting conditions. It was successfully tested in 9 image sequences (2,210 frames) and achieved high accuracy of over 92% for open eye and over 86% for closed eye compared to the ground truth. In particular, it improves almost 15% in terms of open eye state detection compared to a recent commonly used approach, template matching algorithm.

Designed Format to perform Welding Procedure Specification by computer

Computer Engineering

Nowadays the development of computer science is changing rapidly, resulting in the convenience of subjective analysis and the creating of a huge data base. Consequently the created computer program for using in industry is very significant in the convenience, speed and correctness that it produces. To design a programming for welding procedure specification, One problem welding has been developed in Thai industry is that there are many standards in use throughout the world such as ASME section IX [1], AWS D1.1[1] International Standard Organization (ISO9956) [3,4,5] etc. Each standard has it s own special code and differing methods of demonstration in standard form, which involve a lot of data and special details of welding. This result is a long procedure being supplied on the instruction form. Misunderstanding can easily occur, causing complications to arise. This research utilize visual Basic 6 and Microsoft Access 2000 to show the information of ASME Section IX, AWS D1.1 and International Standard (ISO 9956).The software and information can demonstrate and print out welding procedure specification (WPS) and procedure qualification record (PQR). The result of this research can show the WPS and PQR can be easily to fill and can show all detail and corrected information. This is essential in Industrial application and in Welding Engineering Education.

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