In this paper, a high-efficient lined-based architecture for the 9/7 discrete wavelet transform (DWT) based on lifting scheme is proposed. The proposed parallel and pipelined architecture consists of a horizontal filter (HF) and a vertical filter (VF). The critical path of the proposed architecture is reduced. Filter coefficients of the biorthogonal 9/7 wavelet low-pass filter are quantized bef...

In this paper, high-efficient lifting-based architectures for the 5/3 forward and inverse discrete wavelet transform (DWT) are proposed. The proposed parallel and pipelined architecture consists of a horizontal filter (HF) and a vertical filter (VF). The system delays of the proposed architectures are reduced. Filter coefficients of the biorthogonal 5/3 wavelet low-pass filter are quantized bef...

This paper proposes an optimization procedure of a spatial filter in a water level detection system. The water level of running water of a river is detected by applying a temporal filter and a spatial filter to a video of various river scenery. Previously, we have proposed an algorithm based on “addition” of frames and “horizontal” detection of edges. We have confirmed its superiority to the ex...

A model of spatiotemporal signal processing by the cone-horizontal cell circuit in the primate outer retina is developed and validated using measurements on the H1 horizontal cell from the literature. The model extends an earlier temporal model that mainly addressed the regulation of sensitivity by the cones. Three elements are added to the earlier model to describe the full spatiotemporal proc...

A model of spatiotemporal signal processing by the cone–horizontal cell circuit in the primate outer retina is developed and validated using measurements on the H1 horizontal cell from the literature. The model extends an earlier temporal model that mainly addressed the regulation of sensitivity by the cones. Three elements are added to the earlier model to describe the full spatiotemporal proc...

In this paper, we analyze an improved DOG filter with different parameters in horizontal and vertical directions and the improved filter uses oval recognition domain instead of round recognition domain of classic DOG filter. The improved filter is used to compare with major illumination pretreatment methods. The experiment result shows the improved method has better recognition and false detect...

In this paper the application of edge detection techniques to gravity data are described. Edge enhancement in potential-field data helps geologic interpretation. There exist several methods for enhancing edges, such as tilt angle, and the derivative of tilt angle. Most of these methods are high-pass filters based on the horizontal or vertical derivatives of the field. To determine the filters n...

Fig. 3: Radiological readings of the 4 methods: (a) SENSE recon (black); (b) adaptive combine with Gaussian filter (red); (c) unwrap and Gaussian filter (green); (d) adaptive combine with homodyne filter (blue). Horizontal axis is the filter width (1-3 mm from left to right for methods a-c; 192-64 pixels (kspace) for method d). The best image quality were methods (a) and (b) with a filter betwe...

The increased accessibility of the tool achieved by using 5-axis roughing reduces overall machining time complex parts reducing or eliminating re-roughing and semi-finishing operations thereby decreasing volume remaining material before finishing operations. However, milling generates significant variations in orientation which, combined with high engagement required conditions, can be penalizi...