Biological vision systems are capable of discerning detail as well as detecting objects and motion in a wide range of highly variable lighting conditions that proves challenging to traditional cameras. In this paper, the authors describe the real-time implementation of a biological vision model using a high dynamic range video camera and a General Purpose Graphics Processing Unit. The effective...

Energy efficiency and energy-proportional computing have become major constraints in the design of modern exascale platforms. Dynamic Voltage and Frequency Scaling (DVFS) is one of the most commonly used and effective techniques to dynamically reduce power consumption based on workload characteristics. The focus of this paper is to survey several energy saving strategies designed for improving ...

This paper presents a novel illumination technique for image processing in environments which are characterized by large intensity fluctuations and hence a high optical dynamic range (HDR). This proposal shows how by combining a set of images, flashed with different radiant intensities but with a constant exposure time for the imager, a single image can be produced with a compressed dynamic ran...

In this paper, a wideband receiver with high dynamic range is proposed. At the front end of the proposed receiver, a sensing waveform is used to sense the input signal. And by adjusting the sensing waveform so as to project the interference to zero, the receiver can eliminate the strong interference signal adaptively before sampling. Both the theoretic analysis and simulation show that this met...

High dynamic range (HDR) rendering is becoming an increasingly popular technique in computer graphics. Its challenge consists in mapping the resulting images’ large range of intensities to the much narrower ones of the display devices in a way that preserves contrastive details. Local tone mapping operators effectively perform the required compression by adapting the luminance level of each pix...

Application of digital signal processing to audio is often limited by available converter technology and recorder datawidth to processes with controlled dynamic range. In digital mixing consoles some analogue gain control is normally required to achieve adequate performance for the input channel ADCs and digital multi-track recorders. This paper examines such dynamic range bottlenecks and deriv...

Due to dynamic range compression and contrast enhancement realized simultaneously in traditional image enhancement algorithm based on frequency domain, which cause the low contrast degree, an improved image enhancement algorithm based on fuzzy filter is proposed in this paper. According to subjective feeling of the human visual system to light luminance, the image is processed with the global b...

A directional hearing aid adapter was designed and implemented using Dynamic Translinear (DTL) circuit techniques. The signal-processing core was optimized to yield minimum current consumption for the specified dynamic range. In this paper the design and implementation of the core is presented. It consumes a current of 40 μA at a supply voltage of down to 1.0 V having a total integrated capacit...

We investigate the potential of strategic ship routing through dynamic currents derived from satellite altimetry by simulating current patterns in a dynamic Gulf Stream region to reflect present and improved current estimation capabilities, using dynamic programming to determine approximately 3-day routes through the current patterns, and estimating relative fuel savings that would be obtained ...

We give a dynamic programming solution to the problem of scheduling scenes to minimize the cost of the talent. Starting from a basic dynamic program, we show a number of ways to improve the dynamic programming solution, by preprocessing and restricting the search. We show how by considering a bounded version of the problem, and determining lower and upper bounds, we can improve the search. We t...