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91.
光电混合联合变换器可实现对目标的实时探测、识别及自动定位。但低对比度目标的相关峰强度很弱,甚至得不到相关峰.影响了目标的识别率。利用高提升滤波处理技术和图像分割对功率谱进行增强处理,可以有效提高功率谱对比度,最大限度保留光谱图像的细节信息,提高光电联合相关系统的目标识别率。 相似文献
92.
Motion capture cannot generate cartoon‐style animation directly. We emulate the rubber‐like exaggerations common in traditional character animation as a means of converting motion capture data into cartoon‐like movement. We achieve this using trajectory‐based motion exaggeration while allowing the violation of link‐length constraints. We extend this technique to obtain smooth, rubber‐like motion by dividing the original links into shorter sub‐links and computing the positions of joints using Bézier curve interpolation and a mass‐spring simulation. This method is fast enough to be used in real time. 相似文献
93.
The aircraft lap joints are inspected with an enhanced visual inspection technique named “Edge of Light”, which is patented
by the NRC Institute for Aerospace Research. This technique is applicable for rapid detection of possible hidden corrosion
in lap joints. The surface deformation due to hidden corrosion can be characterized by this optical-based inspection method.
In this study, a calibration procedure is developed to quantify the lap joint surface deformation. The effect of surface reflectivity
is investigated with the solid film highlighting technique (SolidHiTM), which helps achieve a uniform reflectivity during the inspection. The efficiency of the technique is demonstrated with
the experimental results.
This work is supported by NRC-IAR New Initiative Research Funding. 相似文献
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97.
提出了一种基于依赖注入和控制反转提高移动终端应用移植性和重用性的解决方案,并在Spring框架上实现了手机拍照应用在不同平台间的移植.结果表明该方案取得了较好的效果,提高了移动终端应用软件的移植性和重用性. 相似文献
98.
A control synthesis method for output regulation based on singular perturbation theory combined with inverting design is considered for a class of nonaffine nonlinear systems. The resulting control signal is defined as a solution to "fast" dynamics which inverts a series error model, whose state is exponentially stable. It is shown that, under sufficient conditions being consistent with the assumptions of singular perturbation theory, this problem is solvable with (ε) tracking error if and only if a set of first-order nonlinear partial differential equations are solvable. The control law can be easily constructed and the simulations show the feasibility and effectiveness of the controller. 相似文献
99.
We consider the problem of constructing partial state observers for discrete-time linear systems with unknown inputs. Specifically, for any given system, we develop a design procedure that characterizes the set of all linear functionals of the system state that can be reconstructed through a linear observer with a given delay. By treating the delay as a design parameter, we allow greater flexibility in estimating state functionals, and are able to obtain a procedure that directly produces the corresponding observer parameters. Our technique is also applicable to continuous-time systems by replacing delayed outputs with differentiated outputs. 相似文献
100.