resolution pixel density for background images
Multi resolution region preserving segmentation for color images of natural scene
... could be applied to both gray scale images and color images 2.1 Traditional Approaches for Color Image Segmentation The general segmentation methods for color images can be grouped into four main ... fragmented for image labeling We adapt this algorithm for segmentation at a lower resolution level to produce more semantically consistent regions 2.3 Multi -Resolution Approach Multi -resolution ... only been applied to grayscale images James Wang has proposed a multi -resolution approach for segmenting sharply focused object-of-interest from other foreground or background objects [31] It employs...
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Tài liệu HLSL and Pixel Shaders for XAML Developers doc
... private PixelShader pixelShader = new PixelShader(); public InvertColorEffect() { pixelShader.UriSource = new Uri("/Ch02_CustomEffect;component/output.ps", UriKind.Relative); this.PixelShader = pixelShader; ... books may be purchased for educational, business, or sales promotional use Online editions are also available for most titles (http://my.safaribooksonline.com) For more information, contact our ... simultaneously cover two similar but different platforms like Silverlight and WPF The combination of XAML with C# or VB makes for a powerful platform for user interface design and development There...
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Báo cáo khoa học: "How Many Words is a Picture Worth? Automatic Caption Generation for News Images" docx
... handlabeled data, and reliance on background ontological information For example, H´ de et al (2004) generate dee scriptions for images of objects shot in uniform background Their system relies ... understand the information expressed in them The task of generating captions for news images is novel to our knowledge Instead of relying on manual annotation or background ontological information we ... tuples for training, 240 tuples for development and 240 for testing) Documents and captions were parsed with the Stanford parser (Klein and Manning, 2003) in order to obtain dependencies for the...
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hlsl and pixel shaders for xaml developers
... private PixelShader pixelShader = new PixelShader(); public InvertColorEffect() { pixelShader.UriSource = new Uri("/Ch02_CustomEffect;component/output.ps", UriKind.Relative); this.PixelShader = pixelShader; ... is ready for the computer display This is where the pixel shader, if there is one, goes to work Figure 1-3 The pixel shader in the pipeline The pixel shader examines each rasterized pixel, applies ... second copy Then the images are displaced a few pixels away from each other (See Figure 3-7(a)) For example, the light version is moved two pixels to the left, the dark version two pixels to the right...
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Báo cáo hóa học: " Rician nonlocal means denoising for MR images using nonparametric principal component analysis" pdf
... significantly with noise levels for PCA than for NPCA Therefore, the number of principal components for NPCA is more robust to variations in noise as well as in images than for PCA Figure shows the ... 0.03L, and L was 255 for 8bits /pixel gray scale images (a) brain image Figure Test images 4.2 Quantitative comparison The quantitative performances in terms of PSNR, MAE, and DSSIM for all of the algorithms ... significantly with noise level for PCA than for NPCA Therefore, the number of principal components was more robust to variations in the noise as well as in the images for NPCA than for PCA We also proposed...
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Báo cáo hóa học: " Research Article A New Inverse Halftoning Method Using Reversible Data Hiding for Halftone Images" docx
... Information and Data Embedding The overhead information includes two kinds of data; SH is the pattern pairs information (Figure 5) for data embedding, and LH is the important LUT template information ... (Figure 9) for improving the quality of recovery images Since different images have different contents of SH and LH We should embed the overhead information into the halftone image for image recovery ... methods with ten images for training Table shows the PSNR values for the recovery images using these different methods Experimental results show that the reconstructed grayscale images using the...
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báo cáo hóa học:" Research Article A New Denoising System for SONAR Images" docx
... times for some of the other denoising methods presented in Table are appreciated For example for the redundant BLS-GSM with estimation window of size × 3, the computation time for denoising images ... define as “neighborhood of a pixel i” any set of pixels j in the image so that a window around j looks like a window around i All pixels in that neighborhood can be used for predicting the value ... computational complexity is due to the cost of weights calculation for all pixels in the image during the process of denoising For every pixel being processed, the whole image is searched, and differences...
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Báo cáo hóa học: " Research Article Peak-Shaped-Based Steganographic Technique for JPEG Images" pdf
... lossless format and grayscaled Image dimensions are 512 × 512 pixels The images are converted in JPEG format with a fixed quality factor equal to 80 3.1 PSNR Evaluation This experiment is performed ... this work is on hiding information in images, the cover messages will be denoted as cover images 2.2 Selection of the Modifiable Coefficient Set The JPEG compression codes the images by dividing them ... test; (iv) both the test images and the train images are analyzed by the steganalyzer without the embedded message (as cover images) and with the embedded message (as stego images) ; (v) the support...
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Báo cáo hóa học: " Research Article A Total Variation Regularization Based Super-Resolution Reconstruction Algorithm for Digital Video" ppt
... engineering from Stanford University, Stanford, Calif At Stanford, he developed image processing algorithms for the Programmable Digital Camera project He also consulted for industry in the areas ... of T satisfy tk ≤ ce−γ|k| (23) for some c > and γ > 0, or tk ≤ c |k | + −s (24) for some c > and s > 3/2 Then for any given ε > 0, there exists a p > such that for all p > p , L p − C−1 ≤ ε, ... other TV or TV-related algorithms in the “Foreman” experiments 5.1 The “Foreman” sequence We first tested the popular “Foreman” sequence with a 352 × 288 CIF format One frame (the 24th) of this sequence...
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Báo cáo khoa học: "Registration accuracy for MR images of the prostate using a subvolume based registration protocol" pps
... of the registration volume for a mean square metric based algorithm, i.e determine the optimal size of the registration volume to be used for alignment of MR images for treatment response evaluation ... registration for treatment adaptation Chao et al [26] used deformable registration to warp a narrow shell and map contours from a planning CT to CBCT images Wang et al [27] used deformable registration ... planning CT to 25 repeat CTs for a prostate patient A problem with deformable registration for image guided radiotherapy is that it requires online replanning or some other form of plan modification...
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Báo cáo y học: "High resolution transcriptome maps for wild-type and nonsense-mediated decay-defective Caenorhabditis elegans." potx
... coverage However, the resolution with which any transcript can be mapped is limited by the resolution of the array (which for most complex genomes is not at single base-pair resolution) and, furthermore, ... accuracy, we searched for exons whose NI changes between any two developmental stages A significant change in NI for an exon between two stages indicates a shift in isoform levels for the gene in question ... Acknowledgements We thank Wolfgang Huber for critical comments and help with the data analysis, Sanger core sequencing for their sequencing efforts and the Fraser lab for comments and suggestions The...
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báo cáo khoa học: " High resolution melting analysis for the detection of EMS induced mutations in wheat SbeIIa genes" doc
... conditions for testing primers included an initial denaturation step at 94°C for min, followed by 35 cycles at 94°C for min, 62-67°C for and 72°C for min, followed by a final incubation at 72°C for ... followed by 35 cycles at 98°C for 10 sec., 58°C for and 72°C for min, followed by a final extension at 72°C for The following gene-specific primers were designed for: SBEIIa-A [EMBL: HE591389] ... redundancy; therefore forward genetic screening for mutations requires extensive screening based on effective isoenzymatic or molecular markers In addition, the shortage of mutations for most target...
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High resolution numerical methods for compressible multi fluid flows and their applications in simulations
... Schlieren images of density field for shock-helium bubble interaction 105 3.8 Schlieren images of density and pressure fields for the underwater explosion problem 106 3.9 Density ... 185 6.24 Density iso-surfaces for krypton sphere, Ma = 1.2 185 6.25 Density contours for krypton sphere, Ma = 1.2 186 6.26 Volume fraction iso-surfaces for krypton sphere, ... Vorticity field for a helium cylinder, Ma = 174 6.8 Vorticity field for a helium cylinder, Ma = 174 6.9 Vorticity field for a helium cylinder, Ma = 174 6.10 Density...
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Skew estimation for document images
... which locates the foreground pixels of a component that has neighboring background pixels, textured background analysis which identifies the foreground pixels from the background pixels that have ... foreground pixels (information) and the background pixels (separator) of the input grayscale images, connected component analysis which extracts spatially related foreground pixels as separate ... the background mode for the image in Figure 3.1 (σ=0.5°) The S/N ratio and peak accuracy are both lower than in the foreground mode, but still usable even for the skew detection for low-resolution...
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Document image restoration for document images scanned from bound volumes
... transform on the foreground is performed, followed by a random inversion of binary pixels where the probability of flip is a function of the distance of the pixel to the boundary of the foreground ... resolution and per -pixel jitter determine the centers of each pixel sensor; for each pixel sensor the blurring kernel is applied, giving an analog intensity value to which per -pixel sensitivity ... original scanner document images 85 5.2 Average word precision and recall for the original scanner document images 86 5.3 Average character precision and recall for the images restored by the method...
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Christoph bollmeyer a HIGH RESOLUTION REGIONAL REANALYSIS FOR EUROPE AND GERMAN CREATION AND VERIFICATION WITH a SPECIAL FOCUS ON THE MOISTURE BUDGET
... temporal resolution for different reasons For instance, hydrologists require convection-resolving precipitation data sets as boundary forcing for their even finer models to account for local ... l f for dry air for water vapour for liquid water for water in frozen form (2.5) 2.1 The COSMO-Model The following symbols and definitions are used here: ρ = ∑ ρx total density of the ... information on the quality of the observation The temporal weight for single observations is a hat function, linearly decreasing for −3 h and +1 h for radiosonde data and −1.5 h and +0.5 h for...
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Báo cáo sinh học: " Research Article A New Switching-Based Median Filtering Scheme and Algorithm for Removal of High-Density Salt and Pepper Noise in Images" pptx
... substitution pixels for the noisy pixels y j+1 , y j+2 , , yn These substitution pixels are derived from noise-free image pixels as developed in Section In the case of high density noise ... the performance of the proposed algorithm Images are corrupted by uniformly distributed salt and pepper noise at different densities for evaluating the performance of the algorithm Three images ... noise-free pixels of the original set according to a predescribed rule that enhances correlation results in a denoised pixel The next section develops a method for deriving substitute pixels for impulse...
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Báo cáo hóa học: " Research Article Adaptive Resolution Upconversion for Compressed Video Using Pixel Classification" doc
... SD pixel HD pixel Figure 4: Aperture used in the proposed method The white pixels are interpolated HD pixels (FHD ) The black pixels are SD pixels (FSD ), with F12 as a shorthand notation for ... downsampled images are then compressed to introduce coding artifacts We refer to the compressed downsampled images as corrupted images Each pixel in the corrupted images is then classified on that pixel s ... Figure 4, is used for classification in our implementation Therefore, bits are needed for ADRC coding, since bit can be saved by bitinversion [15] For the activity measure, we use bits for local entropy...
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Báo cáo khoa học: "Veterinary decision making in relation to metritis - a qualitative approach to understand the background for variation and bias in veterinary medical records"
... metritis scoring is enforced by law This was the primary motivating factor for running the herd health programme, rather than, for example, creating possibilities to perform epidemiological analyses ... importance of generating data for valid epidemiological analyses across herds They would therefore both score metritis and make decisions on treatments in a more uniform way across herds, attempting ... to understand the phenomenon It was therefore essential to extract as much information as possible from each context of interest, allowing in this case for a long interaction period between each...
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