Description: for the TI dm6446 platformBackground subtraction moduleMaintain a background model, which can distinguish background, foreground and theft/left pixelsShadow removal moduleDetect shadow regions in monochrome videosCamera shift detection and suppression moduleDetect of small camera shift, and suppress the false alarms due to themBlob extraction moduleExtract connected foreground and theft/left pixels as blobsTheft/left baggage distinguish moduleDistinguish theft blobs and left baggage blobs Platform: |
Size: 20244 |
Author:heavyseatree |
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Description: 局部迭代规格化程序，规格化能使图像中的显著区域变得更加显著，不显著区域收到更强的抑制，这样就有效抑制了背景和噪声-Iterative partial standardized procedures, standardized images can significantly more significant region, no significant inhibition of the region received more, so that the effective suppression of background and noise Platform: |
Size: 2048 |
Author:彭素静 |
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Description: 提出了一种室内静止摄像机条件下的运动目标检测和阴影抑制方法。该方法采用一种自适应的背景估计方法来实时更新
背景,用基于概率分类法检测运动目标,并在联合HMMD色彩空间和光度特征来抑制阴影之后,用Sobel边缘检测来修正运动目
标。实验结果表明,该方法能够有效地检测运动目标和抑制阴影。
-An indoor stationary camera under the conditions of moving target detection and shadow suppression method. The method using an adaptive background estimation method to the context of real-time updates, with classification based on the probability of detection of moving targets, and in the United HMMD characteristics of color space and to curb the shadow of light, the use of Sobel edge detection of moving targets to fix. The experimental results show that this method can detect moving targets and suppression of the shadow. Platform: |
Size: 96256 |
Author:沛洋 |
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Description: 。给出了时域滤波的基本原理以及通常采用的
IIR 椭圆地物杂波滤波器的设计方法。重点研究了回归滤波器这一时域滤波算
法。从正交多项式的拟合出发，给出了回归滤波器抑制地物杂波的基本原理及
其滤波实现过程。通过对回归滤波器的计算复杂度的研究，寻找使回归滤波器
计算量最小的正交多项式。分析了回归滤波器频率响应特性，比较了回归滤波
器与IIR 椭圆地物杂波滤波器的计算复杂度。利用仿真的雷达信号，分析了回
归滤波器的地物杂波抑制性能。回归滤波器实际上是一高通滤波器，它在滤掉
低频地物杂波的同时，对落在滤波器阻带内的天气回波信号同样会造成衰减。
在天气回波信号谱宽固定的情况下，通过改变天气回波信号的平均多普勒频率，
分析了回归滤波器对它的衰减情况。在基于一组实际采集的雷达信号的基础上，
给出了回归滤波器的地物杂波抑制比随着滤波器阶数的变化情况。-Firstly, this dissertation introduces the research background and significance of
ground clutter suppression, analyzes the characteristics of the ground clutter and
weather signals in the Doppler weather radars and simulates Doppler radar echo
signals (It includes ground clutter, weather echo signals and the mixture of them).
The simulated signals are used later to study the time and frequency domain ground
clutter suppression.
Secondly, this dissertation talks about the time domain filtering, gives the basic
theory of time domain filtering and describes the design method of the usually used
fifth-order elliptic infinite impulse response (IIR) ground clutter filter. In the time
domain, the work focuses on the regression filter. From the orthogonal polynomials
fit, this dissertation gives the basic theory of the regression filter for ground clutter
suppression and the filtering process using a regression filter. Through the study of
the computational complexity of regression Platform: |
Size: 842752 |
Author:刘小洋 |
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Description: 对红外背景抑制技术进行了相关讨论和研究，在总结前人研究成果的基础
上，提出一种基于模式侧抑制的背景抑制方法。实验结果表明，该方法在有效增强
目标的同时，又能对复杂背景进行很好的抑制，在提高信杂比方面表现出良好的性
能。
-The technique of background suppression in IR image is discussed and studied
principally. Based on the outcomes developed, an algorithm of small target detection
based on pattern lateral inhibition is proposed. Experiments results demonstrate the
approach proposed to be effective in detecting small target in clutter.
Platform: |
Size: 792576 |
Author:陈想 |
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Description: Abstract：This paper presents an algorithm that can estimate dim and small target background via bilateral filtering. The conventional method directly uses bilateral filtering for background suppression, which can largely retain background, but it still maintains the small target so that the SCR of the subtracted image is not great, which brings difficulties to the later segmentation. The concept of the proposed filter is to utilize the new weight matrix having the structure reducing effects of the target pixels in order to predict exactly the background and exhibit higher contrast radio and SCR. The experimental results show that the proposed method has a better performance in comparison to the conventional one and the TDLMS filter. Platform: |
Size: 879616 |
Author:杨松 |
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Search - background suppression