搜索结果: 1-13 共查到“信息与通信工程 ACTIVE”相关记录13条 . 查询时间(0.03 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：An active contour model with local variance force term and its efficient minimization solver for multi-phase image
局部方差力项 活动轮廓模型 多相图像 最小化求解器
2023/5/8
In this work, we propose an active contour model with a local variance force (LVF) term that can be applied to multi-phase image segmentation problems. With the LVF, the proposed model is very effecti...
EFFECTS AND PERFORMANCE OF SPECKLE NOISE REDUCTION FILTERS ON ACTIVE RADAR AND SAR IMAGES
RADAR SAR Images Noise Speckle Filtering Adaptive Filter
2015/8/17
Reduction of speckle noise is one of the most important processes to increase the quality of radar coherent images. Image variances
or speckle is a granular noise that inherently exists in and degra...
Active Pixel Sensors Fabricated in a Standard 0.18 urn CMOS Technology
CMOS APS image sensor dark current quantum efficiency photodiode photogate
2015/8/17
CMOS image sensors have benefited from technology scaling down to O.351um with only minor process modifications. Several studies have predicted that below O.25m, it will become difficult, if not impos...
Analysis of Temporal Noise in CMOS Photodiode Active Pixel Sensor
CMOS APS image sensor reset noise shot noise subthreshold operation temporal noise time-domain noise analysis
2015/8/12
Temporal noise sets the fundamental limit on image sensor performance, especially under low illumination and in video applications. In a CCD image sensor, temporal noise is primarily due to the photod...
Chromosome Segmentation and Investigations using Generalized Gradient Vector Flow Active Contours
Generalized Gradient Vector Flow Active Contours Deformable Curves Chromosome Boundary Mapping Characterization
2015/7/30
We investigated Generalized Gradient Vector Flow Active Contours as a suitable boundary mapping technique for Chromosome spread images which have variability in shape and size, expecting to yield a ro...
Rice tests wireless data delivery over active TV channels（图）
Rice tests wireless data delivery active TV channels
2015/8/4
Rice University engineers have demonstrated the first system that allows wireless data transmissions over UHF channels during active TV broadcasts. If the technology were incorporated into n...
Multiple Kernel Active Learning for Image Classification
Multiple Kernel Active Image Classification
2010/12/20
Recently, multiple kernel learning (MKL) methods have shown promising performance in image classification. As a sort of supervised learning, training MKL-based classifiers
relies on selecting and ann...
State of the Art for Differential Circuits in Wireless Transceivers: A New Wideband Active Balun in SiGe BiCMOS Technology
Active Balun Current Conveyors Differential Analogue Circuits
2009/7/28
The aim of this paper is 3-fold: firstly, to provide a comprehensive overview of the use of differential circuits for analogue signal processing in wireless transceivers; secondly, to describe, in det...
Design Optimization Methodology of CMOS Active Mixers for Multi-Standard Receivers
Active mixer Radio-frequency transceiver Multistandard front end
2010/2/2
A design flow of multi-standard down-conversion
CMOS mixers for three modern standards: Global System Mobile,
Digital Enhanced Cordless Telephone and Universal Mobile
Telecommunication Systems is p...
An Active Volumetric Model for 3D Reconstruction
active volumetric model 3D reconstruction
2010/12/15
In this paper, we present an active volumetric model (AVM) for 3D reconstruction from multiple calibrated images of a scene. The AVM is a physically motivated 3D deformable
model which shrinks active...
Enhance the Alignment Accuracy of Active Shape Models Using Elastic Graph Matching
Active Shape Models Elastic Graph Matching
2010/12/14
Active Shape Model (ASM) is one of the most popular methods for image alignment. To improve its matching
accuracy, in this paper, ASM searching method is combined with a simplified Elastic Bunch Grap...
Exploration is used in Q_learning because the agent will be caught in locally optimal policies due to blind exploitation.However excessive exploration will degrade the performance of Q_learning and it...
Enhanced Active Shape Models with Global Texture Constraints for Face Image Analysis
Enhanced Active Shape Models Global Texture Constraints Face Image Analysis
2010/12/14
Enhanced Active Shape Models with Global Texture Constraints for Face Image Analysis.