Image Quality
Image quality evaluation for two different positron emitters in a preclinical PET scanner
... For imaging capabilities evaluation, the NEMA NU 4/2008 recommends a specific Image Quality (IQ) phantom. This phantom (Figure 1) is made up of polymethylmethacrylate (PMMA) with internal dimensions of 50 ...
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A bag of words description scheme for image quality assessment
... most image processing environments” [8], a subjective quality measurement Mean Opinion Score (MOS) of the system is the best indicator of how distortions affect perceived ...the image quality ...
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Retinal image quality assessment using deep convolutional neural networks
... the image quality is assessed by the physician since it can impact a correct image ...retinal image quality and its classification is usually ...the image quality ...
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Image quality evaluation of a small animal PET scanner
... the image quality parameters is an important step for ensure the reproducibility of preclinical image ...affect image quantification and visualization of small structures and low/high uptake ...
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Body Image Quality of Life Inventory - BIQLI: Adaptação para o português e validação...
... Body Image Quality of Life Inventory (BIQLI) is an instrument composed of 19 items and assesses the negative or positive body image impact over a few aspects of life: emotions, social life, diet, ...
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Influence of detectors efficiency normalization on small animal PET image quality
... PET image of the image quality (IQ) phantom [2] were ...PET image acquisition were performed using recommended parameters [2] - radionuclide: 18 F, activity: ...
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Deep neural networks for image quality: a comparison study for identification photos
... With regard to the problems described previously, one of the goals of this disser- tation is the development of a DNN model capable of classifying profile images in terms of their quality. This model results from ...
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Image quality assessment based on inter-patch and intra-patch similarity.
... In this paper, an FR IQA scheme based on the inter-patch and intra-patch similarity is intro- duced. The two similarity indices complement each other. One component aims at measuring the similarity of inter-patch ...
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An efficient algorithm eradicating semantic gap with help of image quality assessment
... the quality of image is passed. That gives the reference image after ...an image quality measure, which will produce results that are in agreement with subjective assessment and ...
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AN IMPROVEMENT OF STRUCTURAL SIMILARITY INDEX FOR IMAGE QUALITY ASSESSMENT
... distorted image is prominent for determining overall visual ...measures quality locally and is able to capture local dissimilarities better, unlike global quality measures such as MSE and ...visual ...
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Change in Image Quality According to the 3D Locations of a CBCT Phantom.
... determine image quality differences when an object is located at the center of the field of view ...the image quality of the CBCT scan according to different object positions, the image ...
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PLÉIADES PROJECT: ASSESSMENT OF GEOREFERENCING ACCURACY, IMAGE QUALITY, PANSHARPENING PERFORMENCE AND DSM/DTM QUALITY
... The image quality was also investigated with respect to effective resolution, Signal to Noise Ratio (SNR) and blur ...the image quality corresponds to the nominal resolution of ...
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REQUIREMENTS FOR IMAGE QUALITY OF EMERGENCY SPACECRAFTS
... Main results. To verify the proposed model functionality we have carried out calculations of the numerical values for the linear resolution of the image, ensuring the successful task of determining the gross ...
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Region-Based Fractional Wavelet Transform Using Post Processing Artifact Reduction
... the image into three frequency modes (smooth, intermediate, and non-smooth mode for low-frequency, mid-frequency, and high- frequency regions, respectively), to modify the current pixel values and its neighbors' ...
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Mammogram contrast enhancement in wavelet domain using fuzzy denoising
... Breast cancer is one of the leading death causes among many women around the world. Diagnosing breast cancer in early stage before it gets the chance to spread helps patients treatment.Mammography is an effective ...
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Int. braz j urol. vol.35 número4
... and image quality for (99m)technetium dimercapto-succinic acid scintigraphy varied more than expected between ...poor image quality was inadequate count acquisition with insuficient attention ...
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Rev. esc. enferm. USP vol.50 número6
... high quality images would be ...the image quality was much higher than that in control ...the image quality, not involved the disease itself in this ...of image quality is ...
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Comparison Study of Different Lossy Compression Techniques Applied on Digital Mammogram Images
... new image scaling algorithm called the Winscale ...for image processing systems that required high visual quality and low computational ...(HR) image restoration from a down- sampled ...
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Poster EANM AS 2011
... Image quality was evaluated according to the requirement of a new stress acquisition due to extra-cardiac activity that interfered with image quality and interpretation.. Micros[r] ...
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ENHANCEMENT OF SPATIAL RESOLUTION OF THE LROC WIDE ANGLE CAMERA IMAGES
... five image fusion quality metrics (Tables 3 and 4) : (1) Average Gradient (AG) - average magnitude of the image gradi- ent computed in the row and column directions; larger AG im- plies higher ...
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