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The electric power panel is widely used in aircraft engineering. Extracting the degradation feature of power panel is very important for degradation modeling and RUL estimation. This paper employed an Ensemble Empirical Mode Decomposition (EEMD) based method to extract the degradation statistics feature of power panel. First, the degradation data is decomposed into independent Intrinsic Mode Functions...
In order to overcome the limitation of traditional maintenance support and adapt to the development of the maintenance support for armored equipment, this paper puts forward the idea of constructing a maintenance support system for armored equipment based on PHM technology, emphatically analyses the key technology of the system, such as data acquisition and sensor technology, data mining and information...
There are many biometric features in the hand images captured by digital camera, but few studies are done to extract fingerprint image from it. This paper presents some fingerprint image preprocessing approaches based on a whole-hand image captured by digital camera. The preprocessing methods include key point location, finger image segmentation and fingerprint region extraction. Firstly, the key...
With the development of artificial intelligence and computer vision, face recognition has become a hot topic of pattern recognition. This paper presents a survey on the state-of-art face recognition research, systematically classifying and introducing face recognition methods. Furthermore, this paper analysis and tests some recent algorithms, which are used to extract the local facial features. In...
In this paper, we present a multibiometric approach which combines palmprint, fingerprint and finger geometry collected by a digital camera at decision fusion level. First, eight neighborhood border tracing algorithm is applied to locate fingertips and valley points, then the regions of palmprint and fingerprint as well as a finger contour are extracted from a whole-hand image. Second, the linear...
This paper proposes an improved Poisson image editing algorithm. It can improve the quality of the resulting composite between different images significantly by three steps. At first, we extract object boundary based on global Poisson matting. Then, optimal boundary is computed by shortest-path algorithm between the object boundary and user specified boundary. Finally, seamless composite is achieved...
To provide with an effective method for non-photorealistic rendering for computer generated images with abstraction artistic appearances from 2D images motivates our work in this paper. The methods proposed are inspired by modifying the contrast of visually important features, like luminance and color opponency. In this paper, we mainly propose the method for generating the abstraction appearances...
This paper presents a non-photorealistic rendering technique that automatically extracts stylized edge map from 2D images, aiming to facilitate effective visual communication. We introduce an anisotropic DoG (difference-of-Gaussians) filter that can extract a set of coherent, smooth, and stylized lines from 2D images. These lines effectively capture and convey important shapes and details in the image...
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