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—In this paper, we propose an architecture that performs the forward and inverse discrete wavelet transform (DWT) using a lifting-based scheme for the set of seven filters proposed in JPEG2000. The architecture consists of two row processors, two column processors, and two memory modules. Each processor contains two adders, one multiplier, and one shifter.(More)
methods derive from considerations over different type of backups (the updates of the states). The chapter is closed by a " trespass " in the AI field: implications in exploiting heuristic search with planning methods are analyzed. Chapter 10: Dimensions of Reinforcement Learning In chapter 10, the authors present the final considerations on RL,(More)
Image interpolation is an important image processing operation applied in diverse areas ranging from computer graphics, rendering, editing, medical image reconstruction, to online image viewing. Image interpolation techniques are referred in literature by many terminologies, such as image resizing, image resampling, digital zooming, image magnification or(More)
Euler number of a binary image is a fundamental topological feature that remains invariant under translation, rotation , scaling, and rubber-sheet transformation of the image. In this work, a run-based method for computing Euler number is formulated and a new hardware implementation is described. Analysis of time complexity and performance measure is(More)
In this paper, we review recent developments in VLSI architectures and algorithms for efficient implementation of lifting based Discrete Wavelet Transform (DWT). The basic principle behind the lifting based scheme is to decompose the finite impulse response (FIR) filters in wavelet transform into a finite sequence of simple filtering steps. Lifting based(More)
—A novel rate-distortion optimization algorithm for JPEG 2000 is proposed. In JPEG 2000 standard, the encoder generates a number of independent compressed bit streams. But it is the rate-control algorithm that generates truncation points for these bit streams in an optimal way in order to minimize the distortion according to a target bit rate. In this(More)
In an electronic color imaging device, such as a digital camera, using a single CCD or CMOS sensor, the color information is usually acquired in sub-sampled patterns of Red (R), Green (G) and Blue (B) pixels. Full resolution color is subsequently generated from this sub-sampled image. This is popularly called Color Interpolation or Color Demosaicing. In(More)