a image processing chain development

... industrial car part supplier FAURECIA demonstrated that a static tuning is ineffective against road image variability, an automatic and adaptive tuning based on the approach presented here has been ... input images Yves Lucas et al Image processing chain (IPC) Large image database Descriptors New tuning Input evaluation Output Measures Tested parameters Output evaluation Control module Learning ... enable adaptive image processing It implies relating input image content to the optimal tuning parameter for each particular image These two steps are described in the following paragraphs Image...

Ngày tải lên: 22/06/2014, 23:20

... objects form images that are sensed and translated to multidimensional signals These travel along the visual pathways forward and backward, in parallel and serially, thanks to a fascinating chain of ... to layers and 3, whereas cells in layers and project to layers and Layers and also provide inputs to adjacent cortical areas Cells in layer provide inputs to adjacent cortical areas as well as ... space as a vector space A scalar product for matrices, which can easily represent discrete images, can also be defined Most important, however, is that the space of all images can be viewed as a...

Ngày tải lên: 05/06/2014, 11:59

... Example 1.2 Matlab code A imread(‘cameraman.tif ’); What is happening? %Read in intensity image imshow (A) ; %First display image using imshow imagesc (A) ; %Next display image using imagesc axis image; ... practice they are represented as 8-bit integer images in the common image formats A fax (or facsimile) image is an example of a binary image Intensity or grey-scale images are 2-D arrays that ... numerically from with Matlab arrays) to four or more dimensions to accommodate additional image information, such as an alpha (transparency) channel (as in the case of PNG format images) Floating-point...

Ngày tải lên: 05/06/2014, 12:05

... as a particular implementation of the stages of segmentation and characterization in the overall adaptive image- processing scheme, it can also be regarded as a self-contained adaptive image- processing ... main emphasis is on two specific adaptive imageprocessing systems and their associated algorithms: the adaptive image- restoration algorithm and the adaptive edge-characterization Adaptive image ... images as the signatures, and from which the indexes of the images are built Content analysis can be categorized into spatial domain analysis and compressed domain analysis Spatial domain analysis...

Ngày tải lên: 05/06/2014, 12:06

... algorithms have similar computational structures, none of them appears to have a substantial speed advantage [21] As a practical matter, highly optimized realinput FFT libraries are available from many ... input data Fi and Gi EURASIP Journal on Advances in Signal Processing Table 5: Arithmetic processor estimations of area cost and time delay for 16 bits and one-bit fragmented data Hardware devices ... transforms As DHT and DCT/DST are DFT-related transforms, a common calculation scheme can be presented after we perform some mathematical manipulations 10 EURASIP Journal on Advances in Signal...

Ngày tải lên: 22/06/2014, 20:20

... separation of image processing operators, to show the data flow through the operators, and to encapsulate data and processors related to each operation 4.1 Architecture view Data types The architecture ... expands on VERTIPH’s features including data types and operators as several blocks that operate sequentially on the image data Khoros and OpShop are other systems that act at a similar level The use ... gate-level netlists It is based on a subset of ANSI-C with hardware-oriented syntax extensions such as variable data widths, parallel processing, and channel communication between parallel processing...

Ngày tải lên: 22/06/2014, 22:20

... efficacy in decreasing observational errors and visualizing natural variability in gene expression patterns PROBLEMS AND APPROACHES FOR INTEGRATING DATA SETS FROM RAW IMAGES Sources of variability ... research interests are in computational biology and bioinformatics, web databases, data mining, artificial intelligence, evolutionary computations, animates, artificial life, and evolutionary biology ... sequential application of the polynomial transformations (1) and (2) to pairs of images Complete registration within each time class relative to a starting image (the time class exemplar) gives...

Ngày tải lên: 23/06/2014, 01:20

... perpendicular to linear axis on optical axis + linear axis plane, α | | tan …Eq (5) ̅ Using Eq (5) and Eq (6) we can get the values of α and θ We can now get image into an ideal image plane by applying ... this laser/camera assembly in a linear motion to generate the full 3D depth image as well as a 2D color texture image The highly accurate detection and localization of the laser stripe enhances ... texture image along the scan direction 3.1 Imaging Device The imaging device consists of a linear actuator and a high definition (HD) camera, and two line lasers The camera is mounted on a under carriage...

Ngày tải lên: 24/08/2014, 10:38

... • Horizontal span / Vertical span > • Area > * average area • Area < 0.2 * average area Noise Elimination At this stage, only characters and noise will remain The remaining task on hand is to ... typically not vary considerably from each other, e.g., max _ Area < × _ Area As a result, if the area say Areai < of the ith max _ Area ς component satisfies a certain condition, , the area can ... better appreciated Mobile applications are rampantly available nowadays for a variety of purposes The small and inexpensive wearable devices facilitate new ways through which users can interact...

Ngày tải lên: 14/09/2015, 08:40

... Gaussian As is shown in Fig 24-7, a two-dimensional Gaussian image has projections that are also Gaussians The image and projection Gaussians have the same standard deviation To convolve an image ... reconnaissance photos, tumors in medical images, and handguns in airport baggage scans One approach is to correlate the image multiple times with a variety of shapes and rotations of the target image ... the algorithm by producing the final convolved image The value of each pixel in a correlation image is a measure of how well the target image matches the searched image at that point In this particular...

Ngày tải lên: 13/09/2012, 09:50

... Introduction 15 What Is Digital Image Processing? 15 The Origins of Digital Image Processing 17 Examples of Fields that Use Digital Image Processing 21 1.3.1 Gamma-Ray Imaging 22 1.3.2 X-ray Imaging 23 ... Model 50 Image Sampling and Quantization 52 2.4.1 Basic Concepts in Sampling and Quantization 52 2.4.2 Representing Digital Images 54 2.4.3 Spatial and Gray-Level Resolution 57 2.4.4 Aliasing and ... Imaging Modalities Are Used 34 Fundamental Steps in Digital Image Processing 39 Components of an Image Processing System 42 Summary 44 References and Further Reading 45 Digital Image Fundamentals 34...

Ngày tải lên: 02/11/2012, 17:24

... lens, a radar uses an antenna and digital computer processing to record its images In a radar image, one can see only the microwave energy that was reflected back toward the radar antenna Figure ... surface.An imaging radar works like a flash camera in that it provides its own illumination (microwave pulses) to illuminate an area on the ground and take a snapshot image Instead of a camera lens, ... features that aid in the automated search of a database for potential matches Figure 1.15(b) shows an image of paper currency.Applications of digital image processing in this area include automated...

Ngày tải lên: 02/11/2012, 17:24

Ngày tải lên: 02/11/2012, 17:25

Ngày tải lên: 02/11/2012, 17:25

... B1, B2 are vectors and All, All, A1 2, A2 1, A2 2 are matrices Vectors XI and x2 are made up from variables xli and x2j respectively To solve the above problem one can use a commercial package algorithm ... Two-Dimensional Filters Once the problem has been formulated in this way any of the commercially available linear programming packages can be used to solve it The drawback of this straightforward application ... error is allowed to lie So, it breaks a big linear programming problem into a series of small, more manageable ones What is the philosophy of the iterative approach? Imagine that we have a metal sheet...

Ngày tải lên: 17/10/2013, 23:15

... obtain: Processing: Image 202 The Fundamentals Example 6.5 (B) It was established that during the time interval T when the shutter was open, the camera moved in such a way that it appeared as ... the degradation andcalculate the Fourier transform of the degraded image, it appears thatfrom equation (6.8)we can obtain the Fourier transform of the undegraded image: (6.25) Then, by taking the ... (m,n) and F2 (m,n) as the real and the imaginary partsof the Fourier transform of the undegraded image and Fourier transform back, we obtain image 6.7d This is totally wrong because in equations...

Ngày tải lên: 20/10/2013, 17:15

... horizontally to scan the whole image Local maxima of the assigned values are candidate positions for vertical boundaries Local maxima where the value of E is greater than a certain threshold are accepted ... essentially a name and it hassymbolic meaning only Labels, therefore, cannot be treated asnumbers Label images cannot be processed in the same way as grey level images Often label images are also referred ... than t o as object pixels and pixels with grey level values smaller than t o as background pixels What we mean by “labelling” an image? When we say we “extract” an object in an image, we mean...

Ngày tải lên: 20/10/2013, 17:15

... minor component analysis (MCA) 109 3.4 Parallel adaptive algorithms for PSA/PCA 114 3.5 Adaptive parallel MSA/MCA algorithms for complex valued data 116 A. 1 Fast implementations of PSA algorithms ... complexvalued signals and parameters 361 11.1 Family of adaptive learning algorithms for state-space models 435 Preface Signal Processing has always played a critical role in science and technology and ... 3.1 Basic cost functions which maximization leads to adaptive PCA algorithms 101 3.2 Basic adaptive learning algorithms for principal component analysis (PCA) 102 3.3 Basic adaptive learning algorithms...

Ngày tải lên: 10/12/2013, 14:15