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Firstly, an implementation-friendly interpolation filter algorithm is proposed in this paper. It can save 19.6% processing time on average with negligible coding quality degradation. Then based on the proposed algorithm, an optimized interpolation filter VLSI architecture, composed of the reused data path of interpolation, efficient memory organization and the pipeline interpolation filter engine...
The gradient-based Hough transform is an improvement of the original Hough transform. It is utilized to reduce substantially the computation quantity and make the detection more accurate using gradient information. The main contribution of this paper is to present an efficient implementation of the gradient-based Hough transform for straight lines detection using a Xilinx Virtex-7 FPGA with embedded...
Since FPGA chips maintain relatively low price and its programmable features, it is widely used in those fields which need to update architecture or functions frequently such as communication and education areas. Especially, in mobile devices that recently require the ability to perform computation such as real-time image processing, FPGAs are promising devices. Recent FPGAs have hundreds of embedded...
The execution process is critical to the success of a software outsourcing service. It defines the major roles and activities involved in delivering the outsourced software. This paper presents a process-oriented software outsourcing decision approach, which helps a client selecting appropriate vendors and defining the execution process that both the client and the vendors should comply with during...
Software outsourcing has become a common method used in many IT companies to reduce development cost, increase development efficiency and concentrate limited resource on mainstream business and technology. One of the important software engineering problems under this background is how to form an outsourcing software development process, which sum up all the people, artifacts, methods, working flows...
This letter uses the fanout-of-4 (FO4) metric to analyze the semiconductor process (SP) dependent maximal switching frequency (MSF) of a digital pulsewidth modulator (DPWM). After discussing the choke effect in a self-oscillating hybrid (SOH) DPWM and its impact on MSF, this letter further shows that separating the voltage-controlled oscillator (VCO) and the delay mux line is an effective way to relax...
This paper presents one solution to a question what is the maximum switching frequency of a hybrid digital pulse width modulator (DPWM) if semiconductor process is given and resolution bit number is set high. This paper also proposes a hybrid DPWM structure where voltage controlled oscillator (VCO) and delay line are separated so as to enhance design flexibility and decrease power consumption. And,...
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