Using Sharpness Image with Haar Function for Urban Atmospheric Visibility Measurement
نویسندگان
چکیده
منابع مشابه
Using Sharpness Image with Haar Function for Urban Atmospheric Visibility Measurement
Air quality affects human health, traffic safety and human life quality. The status of air quality can be indicated by the urban atmospheric visibility. The atmospheric visibility is traditionally the human-eye observed maximum distance at which outline of the selected target can be recognized. To replace the traditional measurement for the atmospheric visibility, digital image analysis techniq...
متن کاملUrban atmospheric visibility measurement in the different cut-off frequencies
Urban atmospheric visibility is closely associated with our daily life, such as navigation and human health. In the traditional, visibility is measured by professionally trained people. Meters and technologies were proposed to replace the traditional measurement. Digital image processing technology is one of schemes to measuring visibility. Since the good visibility contains more detail data, t...
متن کاملImage quality measurement using the Haar wavelet
The traditional mean-squared-error (MSE) or peak-signal-to-noise-ratio (PSNR) error measures are mainly focused on the pixel-by-pixel diierence between the original and compressed images. Such metrics are improper for subjective quality or delity assessment, since human perception is very sensitive to correlations between adjacent pixels. In this work, we explore the Haar wavelet to model the s...
متن کاملAtmospheric Visibility Monitoring Using Digital Image Analysis Techniques
Atmospheric visibility is a standard of human visual perception of the environment. It is also directly associated with air quality, polluted species and climate. The influence of urban atmospheric visibility affects not only human health but also traffic safety and human life quality. Visibility is traditionally defined as the maximum distance at which a selected target can be recognized. To r...
متن کاملFragmentation measurement using image processing
In this research, first of all, the existing problems in fragmentation measurement are reviewed for the sake of its fast and reliable evaluation. Then, the available methods used for evaluation of blast results are mentioned. The produced errors especially in recognizing the rock fragments in computer-aided methods, and also, the importance of determination of their sizes in the image analysis ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Aerosol and Air Quality Research
سال: 2010
ISSN: 1680-8584,2071-1409
DOI: 10.4209/aaqr.2009.11.0074