Signal & Image Processing An International JournalAjay Kumar Boyat, "A Review Paper: Noise Models in Digital Image Processing", Signal & Image Processing: An International Journal (SIPIJ), Vol. 6, No 2, April 2
Digital holography (DH) has emerged as one of the most effective coherent imaging technologies. The technological developments of digital sensors and optical elements have made DH the primary approach in several research fields, from quantitative phase i
Technically, almost every image file containssomelevel of noise, even if it’s invisible to the naked eye. If you open an apparently noise-free photo and zoom in to 400%, for instance, you’ll probably start to see aberrations in the pixels, even if they’re slight. However, in this ...
5. Adaptive filters for edge-preserving smoothing of speckle noise in digital images. [D] . Zaman, Marzia Rabbi. 1992 机译:自适应滤波器,用于保留边缘,平滑数字图像中的斑点噪声。 6. Edge Preserved Speckle Noise Reduction Using Integrated Fuzzy Filters [O] . Nagashettappa Biradar, M. L. ...
Based on digital image processing, these methods could automatically extract the test areas from PSi microarray images22. Due to the rough surface of PSi, interference among the scattered light rays under laser light illumination results in the formation of speckle noise on the photosensitive surface...
Digital image has a significant importance in many fields in human life such as, in medicine, photography, biology, astronomy, industry and defense. Thus, it attracts the attention of large number of researchers, among them those interested in preserving the image features from any factors that ...
Presents a unified framework in which to model time-to-digital converters for ADPLLs Explains a procedure to predict and simulate phase noise in oscillators and ADPLLs Describes an efficient approach to model ADPLLS Part of the book series: Analog Circuits and Signal Processing (ACSP) 21k Acces...
The system architecture for image filtering system is shown in Fig. 1. Noise means unnecessary information in digital images. It causes unwanted effects in the images. All medical imaging devices output the images along with visual noise [4]. This is usually a disagreeable feature which degrades...
1. An image processing apparatus comprising: an inputting unit configured to input a plurality of pieces of image data; an aligning unit configured to perform aligning processing of a plurality of images represented by the inputted image data; an average image generating unit configured to generate...
In digital cameras noise arises from several sources. fixed noise (sensor dark current noise and thermal (resistive) noise), photon shot noise, which increases with the square root of the mean number of photons striking the pixels, Dark Signal Nonuniformity (DSNU), which arises from variations ...