Affiliation:
1. Henan Institute of Science and Technology
Abstract
In this thesis, the digital figure of the defect of the casting elements is extracted by PCA. And a new method that simplifies the automatic quality detection is also brought forward. The author not only expounds the theory of PCA, the calculating method, the segmentation of digital figure and the feature extraction, but also analysis the real example to optimize the selecting of the preferences. This thesis is valuable in the real manufacture.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Chavez Pat S Jr,Stuart C S,Jeffrey A. A Comparison of the Different Methods to Merge Multi Resolution and Multi Spectral Data:Land Sat W and SPOT Panchromatic. Photo grammetrlc Engineering&{TTP}-250 Romote Sensing[J]. 1991,57(3): 295-303.
2. Huang T S. PCM Picture Transmission [J]. IEEE Spectrum,1995,2(12):57-63.
3. Luorc,Yihcc.Multisensor fusion and integration: Approaches,applications,and future research directions[J].IEEE Sensor Journal,2002,2(2):107-119.
4. Starck J L,Candès E J,Donoho D L.The Curvelet transform forimage denoising[J].IEEE Transaction on Image Processing,2002,11(6):670-683.
5. Cand`es E,Demanet L,Donoh D,etal.Fast discrete curvelet transforms[R/OL](2005-05). http/: www. curvelet. org.