نتایج جستجو برای: image quality evaluation

تعداد نتایج: 1812075  

The current methods of turfgrass evaluations are often based on human-based assessment methods. However, eliminating subjective errors from such evaluations is often impossible. This research compared the accuracy of human-based and digital image processing-based methods for quality assessment of turfgrasses. Four turfgrass plots were evaluated using the two mentioned methods. In the human-base...

Journal: :iranian journal of medical physics 0
fereydoon nowshiravan rahatabad department of biomedical engineering, science and research branch, islamic azad university, tehran, iran

introduction one of the most important pre-processing steps in optical coherence tomography (oct) is reducing speckle noise, resulting from multiple scattering of tissues, which degrades the quality of oct images. materials and methods the present study focused on speckle noise reduction and edge detection techniques. statistical filters with different masks and noise variances were applied on ...

The current methods of turfgrass evaluations are often based on human-based assessment methods. However, eliminating subjective errors from such evaluations is often impossible. This research compared the accuracy of human-based and digital image processing-based methods for quality assessment of turfgrasses. Four turfgrass plots were evaluated using the two mentioned methods. In the human-base...

2008
T. S. Lim C. S. Lim V. C. Koo H. T. Ewe H. T. Chuah

The design and development of synthetic aperture radar (SAR) system for a particular application often requires redesign of software and hardware to optimize the system performance. In addition, evaluations of the performance of existing autofocus and image formation algorithms are required for the SAR system designers to select a most suitable algorithm for a given image quality requirements. ...

Journal: :Journal of Institute of Medicine Nepal 2013

Journal: :The Journal of the Institute of Television Engineers of Japan 1961

Journal: :JOURNAL OF INFRARED AND MILLIMETER WAVES 2009

Introduction: Phantom studies facilitate the implementation of radiation dose surveillance as a function of radiographic technical parameters for minimizing patient radiation dose. The evidence of such investigations can then be used to evaluate technical parameters used in the radiographic procedures to reduce radiation dose without compromising the image quality. Material and Methods: This ex...

2009
Marius Pedersen Nicolas Bonnier Jon Y. Hardeberg Fritz Albregtsen

Evaluation of perceived image quality in color prints is a complex task, due to its subjectivity and dimensionality. Perceived image quality is influenced by a number of quality attributes. Evaluation of all attributes influence, and their influence on other attributes, is is a difficult and complex task. Because of this the most important attributes should be identified in order to achieve a m...

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