[PDF] Top 20 Satellite Image Compression using Fractional Fourier Transform

... In satellite image processing, an important part is the ...processed. Image compression using transform coding yields extremely good compression, with controllable ... See full document

... the image shown in Fig. 1. This is an image taken by the author in Lower Antelope Canyon, near Page, ...grayscale image. Using T = 100 trials, we count the number of correct detections to ... See full document

... a transform is analogy to the continuous version of ...discrete transform to usefully approximate the samples of the continuous transform, so that it can provide a basis for digital computation of ... See full document

... Fractional Fourier transform and chaos functions play a key role in many of encryption-decryption ...of image encryption-decryption algorithms is quantified and compared using the ... See full document

... the Fourier operators appears in mathematical literature proposed by Wiener in ...[1][7]. Fractional Fourier Transform, commonly referred to as FRFT is the generalization of the Fourier ... See full document

... and transform domain ...in transform domain watermarking, the digital content is first transformed into the frequency domain, then we alter the transform domain coefficients to embed the ...inverse ... See full document

... In Figure 1 [5], the crosses indicate the positions where downsampling would normally occur in the decimated DT-CWT. The subsampling of the DT-CWT has been removed. To offset this effect at the next and subsequent ... See full document

... applying Fourier Transform (FT). Fractional Fourier transform (FrFT) is the general case for the FT and is superior in chirp pulse compression using the optimum FrFT ... See full document

... in Image Processing during the last four to five ...flights. Image Processing systems are becoming popular due to easy vailability of powerful personnel computers, large size memory devices, graphics ... See full document

... current image that are ―significantly different‖ from the previous ...situation image taken after long intervals are dealt ...on image data directly such as simple image differencing, are not ... See full document

... standardized image compression ...for compression of still images [Wallace 1991]; MPEG, for compression of motion video [Puri 1992]; and CCITT ...for compression of video telephony and ... See full document

... games, satellite transmissions and medical ...effective compression algorithms. The basic idea of image compression is to reduce the middle number of bits by pixel (bpp) necessary for ... See full document

... the image. Image compression is actually the reduction of the amount of this redundant data (bits) without degrading the quality of the image to an unacceptable level [3] [4] ...of ... See full document

... Above listed approach predicated on secret sharing strate- gies are extremely vulnerable to channel mistake. If a single pixel in share is influenced, it distorts T pixels in the recon- structed image, where T ... See full document

... : Image enhancement techniques improve the quality of an image as perceived by a Satellite remote ...many satellite images when examined on a colour display give inadequate information for ... See full document

... for image compression then compression ratio depends on to the selection of ...case image recovered as well as enhance, second case 100x100 spectra will used then the image recovered ... See full document

... Abstract: Image compression is one of the main task in saving storage requirements and conserving transmission ...an Image compression based on wavelet transform is proposed to reduce ... See full document

... the fractional transform based image fusion methods are ...The fractional fourier transform is well known fractional ...transform. Fractional wavelet ... See full document

... plane, fractional Fourier transform proves to be a better ...orders image is ...of fractional Fourier transform ,(FRFT )offers an extra degree of freedom in signal ... See full document

... The compression efficiency can be obtained by a small adjustment in the selection of ...the Fractional Fourier transformed image is relatively small ... See full document