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Efficient implementation of non-linear activationfunctions is essential to the implementation of deep learningmodels on FPGAs. We introduce such an implementation basedon the Discrete Cosine Transform Interpolation Filter (DCTIF). The proposed interpolation architecture combines simple arithmeticoperations on the stored samples of the hyperbolic tangentfunction and on input data. It achieves almost...
Because of the high computation demand for multimedia applications like video decoding, there is a need to develop flexible and high performance reconfigurable computing architectures. Taking video decoding algorithm as an example, we propose a reconfigurable computing realization solution of multimedia application. Based on the analysis of parallelism in video decoding algorithm, a hardware platform...
In this paper, we introduce a new class of transform method-the arithmetic cosine transform (ACT). We provide the central mathematical properties of the ACT, necessary in designing efficient and accurate implementations of the new transform method. The key mathematical tools used in the paper come from analytic number theory, in particular the properties of the Riemann zeta function. Additionally,...
In order to enhance the resolution of Charge Coupled Device (CCD) pixel with the pixel dimension and focal length of optical system unchanged, the problem of CCD geometric superresolution is educed. The problem is discussed in terms of software and hardware. In software, the bicubic interpolation is introduced, while in hardware, the subpixel imaging method is utilized. The subpixel imaging method...
Conventional image zooming techniques suffer from degradations such as block effect and excessive lowpass filtering. Those degradations become worse as the magnification ratio increases. Here, an image interpolation system, which produces more natural images than the conventional ones is proposed and its hardware implementation technique is also presented.
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