[PDF] Top 20 Image Enhancement and Feature Extraction Based on Low-Resolution Satellite Data

... relatively low computational cost; however, the Gaussian RBF kernel turned out to define better the separation hyperplane and to capture the nonlinearity in the original feature ...the extraction of ... See full document

... dimensional feature space H without using an explicit ...its low spatial resolution, the meaning of SVs matches with the concept of uncertainty that is inherent along the class ... See full document

... geometric data clearly removed from the information imagine itself, while transform domain technique input image is changed into other transformations, for instance, DFT, DCT and discrete wavelet transform ... See full document

... Histogram Equalization: This method usually increases the global contrast of many images, especially when the usable data of the image is represented by close contrast values. Through this adjustment, the ... See full document

... the resolution of the satellite images based on discrete wavelet transform along with ...the satellite image into LL, LH, HL, HL sub ...of image, remaining sub bands preserves ... See full document

... stages: feature points are extracted using ten- sor voting, kernel density estimation is used to find probability of each pixel being located on the road cen- terline, and feature points are projected onto ... See full document

... A finger-prints recognition system consists of finger- prints device, minutia extractor and minutia matching. For finger-prints acquisition, optical or semi-conduct sensors are extensively used. They have large ... See full document

... biological data of human body, extracting a feature set from the acquired data, and comparing this set against to the template set in the ...sensor data, restricted degrees of freedom, and ... See full document

... approach based on the GA and the BPNN ...for low resolution, variable lighting and different facial expressions applied in real time video processing, single and multi threaded ...and feature ... See full document

... not based on wavelets) suffer from the Disadvantage of losing high-frequency contents (which results in ...approach based on dual-tree complex wavelet transform (DT-CWT) and nonlocal means (NLM) is proposed ... See full document

... in satellite imaging due to the demand in satellite applications such as weather forecasting, astronomy and geographical ...the satellite sensors which are ranging from low resolution ... See full document

... Abstract: Satellite images are used in many applications such as geosciences studies, astronomy, and geographical information ...in satellite images comes from its contrast. Contrast enhancement is ... See full document

... spatial resolution multispectral (MSI) or hyperspectral imagery (HSI) for the purpose of classification and segmentation in Chapter ...filtered image is the combination of the spectra of its adjacent pixels ... See full document

... whole image, or a large portion ...less data and fewer contexts to work with. Those image processing tasks suited to local segmentation are often first to encounter raw image ...This ... See full document

... prints of fingers have a larger ridge and groove area due to the rolling procedure except have better deformations due to the normal nature of the rolling process. In the dab method of finger- prints acquisition, ink is ... See full document

... used extraction algorithms involve wavelet transform methods and various corner detection ...automatic extraction of angular points, i.e., methods based on edge detection [37] and the ones on the ... See full document

... an image produces two complex valued low frequency subband images and six complex valued high frequency subband ...of image features oriented at ±75º, ±15º, and ±45º directions with 4:1 ...the ... See full document

... normal feature of a ...retina image undergoes various preprocessing steps followed by a blob detection algorithm to detect ...the image containing ...HSV image. All the preprocessing steps ... See full document

... for image enhancement, and to reinforce the road ...road extraction from satellite images was achieved by following the three operations a) image preprocessing, b) threshold ... See full document

... the extraction of roads from the high resolution spatial images of suburban scenes by applying segmentation on images using the Normalized Cuts ...the image on the basis of pixel ... See full document