Automatic Defect Detection and Classification Using PCA and QDA in Aircraft Composite Materials

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Defect Detection in Composite Materials by Thermography and Neural Networks

Advanced composite materials offer high structural performances with a remarkable lightness and are used in all fields where this quality is particularly recommended (aeronautics, navy, car manufacturing, etc.). The increasing diffusion of these materials has led to the need for the control of the manufacturing processes and to the wide use of inspections of structural integrity conditions, dur...

متن کامل

Automatic Aircraft Detection and Classification in Cluttered Environments

A vision-based system for detecting and classifying moving obstacles in a cluttered environment using a single camera mounted on a small unmanned aerial vehicle is presented. Feature correspondences between successive image frames are found using the SIFT algorithm, and a model of the background motion is generated by Random Sample Consensus (RANSAC). The transformed frames are then differenced...

متن کامل

Single-trial P300 Classification using PCA with LDA, QDA and Neural Networks

The P300 event-related potential (ERP), evoked in scalp-recorded electroencephalography (EEG) by external stimuli, has proven to be a reliable response for controlling a BCI. The P300 component of an event related potential is thus widely used in brain-computer interfaces to translate the subjects’ intent by mere thoughts into commands to control artificial devices. The main challenge in the cl...

متن کامل

Signal Detection and Automatic Modulation Classification Based Spectrum Sensing Using PCA-ANN with Real Word Signals

Cognitive radio has been proposed as an optimal solution to increase spectrum efficiency, by exploiting unused portions of radio spectrum. The first and the most important function in cognitive radio equipment, is spectrum sensing, wherein a cognitive user must sense his environment to detect a free band, then use it temporarily without causing any interference to the primary user (PU). It has ...

متن کامل

Defect Detection and Classification in Aerospace Materials Using Phased Array Ultrasonics

The use of phased-array ultrasonic instruments and probes allows for optimization of both the sensitivity and resolution for detection of different defect types through electronic beamforming, scanning, and focusing processes. However, development of these inspection processes requires an extensive database of material specimens containing known defects. Through the collaboration of the aerospa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Journal of Korea Navigation Institute

سال: 2014

ISSN: 1226-9026

DOI: 10.12673/jant.2014.18.4.304