A non-adaptive image interpolation algorithm is proposed to scale images for any given scaling factor with an enhancement scheme to ensure a better picture. |In the proposed algorithm, two reference frames, one with higher resolution and another with lower resolution are generated using an original videoframefor the User defined scaling factor. Later, two Intermediate frames are generated from ...

Non-uniform interpolation is a common procedure in image processing. A linear interpolation filter is generally a weighted combination of the inputs. Optimal filter coefficients (in a least squares sense) can be derived if the interpolated image is known beforehand. The weights of a general linear interpolation filter are independent of content and only depend on the relative positions of the a...

The Löwner approach, based on the factorization of a special-structure matrix derived from data generated by a dynamical system, has been applied successfully to realization theory, generalized interpolation, and model reduction. We examine some connections between such approach and that based on bilinearand quadratic differential forms arising in the behavioral framework. Dedicated to Prof. Ha...

In the context of block-based video coding, two error concealment algorithms are presented. The first algorithm is based on bilinear motion field interpolation (BMFI). For each pel in a damaged block, the algorithm recovers a motion vector using bilinear interpolation of neighbouring motion vectors. This vector is then used to conceal the damaged pel. A reduced complexity version of this algori...

This paper presents an approach for the e ective combination of interpolation with a halftoning process to reconstruct a high resolution binary image from a lower resolution gray level one. We study a nonlinear interpolative method that maps quantized low dimensional 2 2 image blocks to higher dimensional 4 4 binary blocks using a table lookup operation. In the generalized interpolative VQ (GIV...

Input–output (I–O) feedback linearization suffers from a number of restrictions which have limited its use in model-based predictive control. Some of these restrictions do not apply to the case of bilinear systems, but problems with input constraints and unstable zero dynamics persist. The present note overcomes these difficulties by means of an interpolation strategy. Involved in this interpol...

The Wigner Distribution (WD) is a bilinear signal transformation possessing several properties that are useful in time-frequency signal analysis. Fast Fourier transform (FFT) techniques have been used to approximate the WD. However, the signal must be sampled at twice the Nyquist rate in order to avoid aliasing errors. This paper deomonstrates that implicit spline interpolation of a continuous ...

In this paper, we propose an effective color filter array interpolation method for digital still cameras using a simple image model that correlates the R, G , B channels. The main contribution of this paper is that we propose a low complexity interpolation method to improve the image quality. Simulation results verify that the proposed method obtain superior image quality. The G channel of the ...