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Geometric algorithms are widely used in many scientific fields like computer vision, computer graphics. To guarantee the correctness of these algorithms, it's important to apply formal method to them. In this paper, we propose an approach to proving the correctness of geometric algorithms. The main contribution of the paper is that a set of proof decomposition rules is proposed which can help improve...
In a Content Addressable Memory (CAM) architecture, both the match-line (ML) sensing circuit and the priority encoder (PE) contribute significantly large delays during a compare cycle. Meanwhile the priority encoder consumes significantly less energy when compared to the sensing circuits, i.e. ∼1% of the overall energy consumption. Based on this observation, we propose the use of dual-supply voltages...
The paper presents a new match line sense amplifier for Content Addressable Memory. It successfully addresses the weaknesses of contemporary designs. Extensive simulation results using a 1 V/65 nm CMOS process from STMicroelectronics have verified that the proposed sense amplifier outperforms other five contemporary designs in terms of energy consumption, area requirement and robustness. This is achieved...
In PCB designs, pin positions greatly affect routability of the design. State-of-the-art pin assignment algorithms are guided by simple (heuristic) metrics to estimate routability and thus have no guarantee to obtain a routable solution. In this paper, we present a novel approach to obtain a pin assignment solution that guarantees routability. We show that the problem of simultaneous pin assignment...
Escape routing is a critical problem in PCB design. In IC-CAD'07, a layer assignment algorithm was proposed for escape routing of buses. The algorithm is optimal for single layer design in the sense that it determines if a set of buses can all be escaped on one layer. If they cannot, the algorithm is able to select a maximum subset of the buses that can be escaped on one layer. This, in turn, leads...
In computer vision, shape recovery is a classic problem. The shape from shading problem aims to reconstruct a 3D shape from one or more intensity images. Inspection of solder joint is a critical step in the assembly of PCB (Printed Circuit Board). So, non-destructive inspection technology has been widely used in a production of PCB. In automated optical inspection (AOI) field 2D inspection appears...
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