digital image processing techniques for detection and removal of cracks

... understand the basic characteristics of digital filters and familiar with techniques used for implementing digital filters. Many DSP books devote substantial efforts to the theory of designing digital ... characteristics of digital filters are often specified in the frequency domain. For frequency-selective filters, the magnitude response specifications of a digital filter are often given in the form of tolerance ... realizable. Instead we must compromise and accept a more gradual cutoff between passband and stopband, as well as specify a transition band between the passband and stopband. The design is based on magnitude...

Ngày tải lên: 23/10/2013, 22:15

... V p is rather slow for a small L. Therefore for a given transition band, the order of the Butterworth filter required is often higher than that of other types of filters. In addition, for a large L, ... have jH!j 3 0, for ! ! p: 6:3:15 This condition can hold for lowpass and bandpass filters, but not for highpass and bandstop filters. MATLAB supports the design of impulse invariant digital filters ... 0:5z À1 : The pole locations of the direct-form H H z are z  0:18 and z  0:695, and the pole locations of the cascade form H HH z are z  0:375 and z  0:5. Therefore the poles of cascade realization...

Ngày tải lên: 28/10/2013, 05:15

... M1RI[M1R1 and R1MI[R1M1. Repairs False Positives Pauses after X (only) and FO of X less than FO of 1st M1 .00 .58 Pauses before X (only) and F0 of X greater than F0 of 1st M1 ... disfluencies as to type and frequency, and are investigating methods for their automatic detection and correction. Here we re- port promising results on detection and correction of repairs by combining ... "no" and "well." And third, we discuss how acoustic information can aid in the detection of word fragments, which occur fre- quently and which pose difficulty for automatic...

Ngày tải lên: 31/03/2014, 06:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 12/08/2014, 04:20

Ngày tải lên: 12/08/2014, 04:21

... dotplot before convolution; and (b) after convolution. 2.3 Convolution and local edge detection Convolution is the method of choice for enhancing and detecting the edges in an image. For noise ... (BCP) of noisy bilingual corpora based on image processing (IP) techniques. By using one of several ways of estimating the lexical translation probability (LTP) between pairs of source and ... Gaussier and Lange 1993), and word sense disambiguation (Gale, Church and Yarowsky 1992; Chen, Ker, Sheng, and Chang 1997). Several methods have recently been proposed for sentence alignment of...

Ngày tải lên: 17/03/2014, 23:20

... 23 2. ImageJ 25 2.1 ImageManipulationand Processing 26 2.2 ImageJOverview 27 1.3 Image File Formats 13 when selecting an appropriate file format: Type of image: These include black and white images, ... possible without the understanding and steady support of our families. Thanks go to Wayne Ras- band at NIH for developing and refining ImageJ and for his truly outstanding support of the growing user ... directory. 13 www.eclipse.org. 14 www.netbeans.org. 15 www.borland.com. 16 Currently only for Windows; for MacOS and Linux, consult the ImageJ installation manual. 1 Digital Images For a long time, using a computer to manipulate a digital image (i. e., digital image...

Ngày tải lên: 05/06/2014, 11:55

... 498 XLVIII List of Contributors Michal ˇ Sorel Academy of Sciences of the Czech Republic Institute of Information Theory and Automation Department of Image Processing Pod Vod ´ arenskou v ˇ e ˇ z ´ ı4 182 ... Prague 8 Czech Republic Filip ˇ Sroubek Academy of Sciences of the Czech Republic Institute of Information Theory and Automation Department of Image Processing Pod Vod ´ arenskou v ˇ e ˇ z ´ ı4 182 ... (MPEG), and ITU-T standardization activities. Peter Schelkens is the Belgian head of delegation for the ISO/IEC JPEG standardization committee, editor/chair of part 10 of JPEG 2000: ‘‘Extensions for...

Ngày tải lên: 05/06/2014, 11:57

Ngày tải lên: 05/06/2014, 11:59

Ngày tải lên: 20/06/2014, 22:20

Ngày tải lên: 22/06/2014, 23:20

... xix 1 Introduction 15 1.1 What Is Digital Image Processing? 15 1.2 The Origins of Digital Image Processing 17 1.3 Examples of Fields that Use Digital Image Processing 21 1.3.1 Gamma-Ray Imaging ... Fundamental Steps in Digital Image Processing 39 1.5 Components of an Image Processing System 42 Summary 44 References and Further Reading 45 2 Digital Image Fundamentals 34 2.1 Elements of Visual Perception ... Page iv 10 Image Segmentation 567 10.1 Detection of Discontinuities 568 10.1.1 Point Detection 569 10.1.2 Line Detection 570 10.1.3 Edge Detection 572 10.2 Edge Linking and Boundary Detection...

Ngày tải lên: 02/11/2012, 17:24

... place of overlap be- tween image processing and image analysis is the area of recognition of indi- vidual regions or objects in an image. Thus, what we call in this book digital image processing ... 1.18 Images of the Crab Pulsar (in the center of images) covering the electromagnetic spectrum. (Courtesy of NASA.) 1.3 ■ Examples of Fields that Use Digital Image Processing 21 FIGURE 1.17 MRI images ... of the digital computer. In fact, digital images require so much storage and computational power that progress in the field of digital image processing has been dependent on the development of...

Ngày tải lên: 02/11/2012, 17:24

Ngày tải lên: 02/11/2012, 17:25

Ngày tải lên: 02/11/2012, 17:25