نتایج جستجو برای: adaptive subtraction
تعداد نتایج: 210228 فیلتر نتایج به سال:
The aim of digital subtraction of radiographic images is eliminating the additional shades to increase the resolution and quality of the images. In dentistry, digital subtraction technique can be used for diagnosis of progressive periodontal diseases or evaluation of the amount of jaw bone repair or destruction. In this study, the possibility of digital subtraction with non-expensive techniques...
Monitoring and observation of moving vehicles is beneficial for the analysis of traffic flow and cognition of other events. For identifying motion from the video feed, the system applies adaptive background subtraction using the OpenCV library for obtaining the threshold images containing blobs which represent moving vehicles. Applying certain operations on the blobs, the speed, class and numbe...
In this presentation, we discuss some priliminary results pertaining to an ongoing project on the development of an adaptive signal processing solution combining antenna subset selection, spectral subtraction, and blind source separation in order to mitigate the impact of both wideband jamming and co-site interference by extracting individual transmissions from multiple intercepted mixtures of ...
State-of-the-art methods to image the earth’s subsurface using active-source seismic reflection data involve reverse time migration. This and other standard seismic processing methods such as velocity analysis provide best results only when all waves in the data set are primaries (waves reflected only once). A variety of methods are therefore deployed as processing to predict and remove multipl...
Accurate moving object extraction is a critical stage in a measurable 3D photogrammetric surveillance system. Several methods have been introduced in spatial and frequency domain by now. Background subtraction is a basic method in spatial domain which has great potentials to be implemented in the live videos due to its simplicity and high rate. However, simple subtraction will not lead to the e...
the aim of digital subtraction of radiographic images is eliminating the additional shades to increase the resolution and quality of the images. in dentistry, digital subtraction technique can be used for diagnosis of progressive periodontal diseases or evaluation of the amount of jaw bone repair or destruction. in this study, the possibility of digital subtraction with non-expensive techniques...
This paper presents an efficient approach for moving objects detection and shadow removal from color videos obtained using stationary camera. A background subtraction technique based on modified adaptive GMM has been proposed for detecting moving objects. Speed-up techniques have also been applied to enhance the computational efficiency of the algorithm. Then, a robust algorithm for shadow remo...
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