搜索结果: 1-15 共查到“工学 Smoothing”相关记录19条 . 查询时间(0.065 秒)
Vectorization of raster data is very important in GIS. Adjacent vertices of vector graphics usually pass though the same vertical or horizontal straight lines after vectorization. This paper proposes ...
Vectorization, Edge Preserving Smoothing and Dimensioning of Profiles in Laser Scanner Point Clouds
Laser scanning Edge preserving smoothing Profile
2015/12/16
The 3D geometry of an object can be captured very efficiently using a terrestrial laser scanner. By modelling and visualisation of
these 3D data, it is possible to obtain vectorized geometric informa...
Study on Smoothing Browser in Multi-view Virtual Space Based on Panorama
Panoramic image Multi-viewpoints Smoothing browser Image Stitching
2015/12/3
In a scene which is not open, people cann’t watch the scene behind the barrier through the single-viewpoint. And the cross-cutting in the multi-viewpoints space can make up for its shortcomings. The P...
A Robust adaptive Image Smoothing Algorithm
Image Smoothing Gaussian noise Salt and Pepper Noise
2015/8/20
Image smoothing is a key technology of image enhancement, which can remove noise in images. So, it is a necessary functional
module in various image-processing software. Excellent smoothing algorithm...
The Effects of Large Ionospheric Gradients on Single Frequency Airborne Smoothing Filters for WAAS and LAAS
Large Ionospheric Gradients Single Frequency Airborne Smoothing Filters WAAS LAAS
2015/6/26
Both WAAS and LAAS receivers use carrier-smoothing filters to reduce the effects of multipath and thermal noise at the aircraft. For the majority of users this reduces the magnitude of the errors and ...
Dual-Frequency Smoothing for CAT III LAAS:Performance Assessment Considering Ionosphere Anomalies
Dual-Frequency Smoothing CAT III LAAS Considering Ionosphere
2015/6/25
Strong ionosphere storms are the most-threatening potential fault mode for the Local Area Augmentation System (LAAS). Multi-frequency GPS techniques are known to be an effective means of reducing or r...
Adaptive Carrier Smoothing Using Code and Carrier Divergence
Adaptive Carrier Smoothing Carrier Divergence
2015/6/25
This paper investigates an adaptive carrier smoothing for a single frequency GPS user. Using a Hatch filter in a single frequency receiver reduces multipath and receiver noise but introduces an induce...
EDGE-PRESERVING SMOOTHING OF HIGH-RESOLUTION IMAGES WITH A PARTIAL MULTIFRACTAL RECONSTRUCTION SCHEME
Remote Sensing, Segmentation High-Resolution
2015/6/1
We introduce a novel approach as a preprocessing step for
feature extraction and/or image segmentation. The method is derived from the multifractal formalism proposed for image
compression. This pro...
A NEW APPROACH TO EDGE-PRESERVING SMOOTHING FOR EDGE EXTRACTION AND IMAGE SEGMENTATION
Image Processing Filtering Radiometric Quality Feature Extraction Edge Extraction Segmentation Multi-spectral Data
2014/12/31
This paper introduces a new approach to edge-preserving smoothing of digital images. It is designed for an effective elimination of the image noise within digital images what is an essential step in a...
POLE-LIKE OBJECTS RECOGNITION FROM MOBILE LASER SCANNING DATA USING SMOOTHING AND PRINCIPAL COMPONENT ANALYSIS
Mobile Laser Scanning Object Recognition Laplacian Smoothing Point Clouds Principal Component Analysis Pole-like Objects
2012/9/3
With the spread of the Mobile Laser Scanning (MLS) system, the demands for the management of road and facilities using MLS point clouds have increased. Especially, pole-like objects such as streetligh...
Non-iterative Global Mesh Smoothing with Feature Preservation
Triangular mesh mesh smoothing Laplace operator least squares feature preservation
2009/8/19
This paper presents a novel approach for non-iterative surface smoothing with feature preservation on arbitrary meshes. Laplacian operator is performed in a global way over the mesh. The surface smoot...
脉冲电化学光整加工建模与机理分析（Modeling and Mechanism of Anodic Smoothing of Pulse Electrochemical Finishing）
脉冲电化学光整加工 数学模型 机理
2009/8/11
以轴承内环外表面为光整加工对象，建立了脉冲电化学光整加工中理想光滑表面及实际尖峰状表面数学模型，分析了极间间隙、电流密度、光整时间等因素对阳极整平效果的影响规律。仿真与实验结果表明,所建模型可以解释整平机理，具有较好的加工质量预测能力，可为光整加工参数的合理选取提供依据。
Speech Pre-Processing for Pitch and Pitch-Cylce Evolutions Smoothing
Pitch speech coder bit rate pitch cycle
2009/7/28
In low bit rate speech coders, pitch is usually transmitted once per frame and, when needed, the intermediate pitch values are obtained by interpolation between 2 adjacent pitch values. Although pitch...
Exponential Smoothing Method of Base Flow Separation and Its Impact on Continuous Loss Estimates
Baseflow separation rainfall streamflow continuing loss proportional loss design
2008/12/24
The calculation of loss is vital for design flood estimation models and in order to estimate continuing loss (CL), proportional loss (PL) and volumetric runoff coefficient, the surface runoff has to b...
The comparison of elastic band and B-Spline polynomials methods in smoothing process of collision-free robot trajectory
Robotics Mechatronics NURBS curves
2008/8/30
Purpose: The main reason of this paper was to prepare the system, which tests the use of elastic band for smoothing the collision-free trajectory. The aided robot off-line programming system is based ...