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基于灰色理论的软件系统人机界面综合评价模型
人机界面 模糊综合评价 指标体系
2009/4/10
人机界面是影响软件设计质量的重要因素之一，需要利用综合评价方法，科学、合理地评判人机界面设计质量。该文分析了人机界面设计的原则，建立了评价指标体系，利用“灰色关联分析”确定评价指标的权重，采用灰色统计方法建立了测评矩阵，借鉴模糊综合评价方法对软件的人机界面进行了合理的评价。
基于面向对象方法的医疗辅助诊断系统
面向对象方法 专家系统 医疗辅助系统 仲裁路径
2009/4/8
利用面向对象方法，设计并实现了一种医疗辅助诊断系统，在其推理机的设计和实现部分，根据医疗辅助领域的特点，提出了描述边、仲裁边、仲裁路径等新的概念，将这些信息作为启发信息应用于推理，从而得到更可靠的问题解。该系统的知识库与推理机相分离，实现了其在医疗辅助领域的通用性。
1997年底，该公司与世界第二大DSP(Digital Signal Processor)器件开发商美国ADI公司进行技术合作，研发以DSP软件技术为产品技术核心的“家泰乐”系列可视电话，该产品成功的进入市场以来，不断地受到使用者的好评和市场的认为。功能：“家泰乐”可视电话系统集可视电话、家庭安全防范、楼宇彩色可视对讲功能于一体。可视电话功能，是指采用符合国际电联的ITU-TH.324标准而设计的...
微光电视成像系统表征方法
微光电视系统 能量传递方程 调制传递函数
2009/2/7
在分析微光电视成像系统的基础上，提出了适用于微光电视成像系统仿真所用的微光场景图像数据的要求及生成方法；针对第二代近贴聚焦系统和第三代像增强系统，建立了微光电视成像系统的能量增益理论模型；引入３维噪声理论模型表征了微光成像系统的噪声；最后，提出了微光电视图像噪声抑制算法的评价方法。仿真结果表明：经微光系统传递后，图像中的高频信息变模糊，加入噪声后，信噪比降低；而经过5帧平均算法后的图像质量明显改善...
浙江大学两项技术被纳入国际多媒体通信标准
数字音视频编码技术
2009/2/5
记者从浙江大学了解到，由该校信息科学与工程学院教授虞露领衔６年研发的两项技术，被正式纳入国际数字音视频编码技术标准，并成为其中的核心技术（Ｅｓｓｅｎｃｉａｌ ｐａｔｅｎｔ）。这打破了多媒体通信领域里国际标准长期被国外大型企业和研发机构所垄断的格局，有助于改变中国相关产业的被动状态。据了解，目前这两项核心技术的相关专利已成功转让到国内通信企业。
Lower Attentive Region Detection For Virtual Content Insertion In Broadcast Video
Region Detection Virtual Content Broadcast Video
2010/12/17
Virtual Content Insertion (VCI) is an emerging application of video analysis. For VCI the spatial position is very important as improper placement will make the insertion
intrusive. To choose the spa...
In this paper, we propose an effective coarse-to-fine algorithm to detect text in video. Firstly, in coarse-detection section, stroke filter is employed to detect all candidate
stroke pixels, and the...
Spatial-Temporal Attention Analysis For Home Vedio
Spatial-Temporal Attention Analysis Home Vedio
2010/12/17
In this paper, by considering the multiple spatial-temporal characteristic of visual perception system, we propose a novel home video attention analysis method. Firstly, each
frame of the video is se...
Recovering 3D Facial Shape via Coupled 2D/3D Space Learning
Recovering 3D Facial Shape 2D/3D Space Learning
2010/12/17
This paper presents a method for recovering 3D facial shape from single image via learning the relationship between the 2D intensity images and the 3D facial shapes.With a coupled training set, the in...
Dynamic Background Modeling and Subtraction Using Spatio-Temporal Local Binary Patterns
Dynamic Background Modeling Subtraction Spatio-Temporal Local Binary Patterns
2010/12/17
Traditional background modeling and subtraction methods have a strong assumption that the scenes are of static structures with limited perturbation. These methods will perform
poorly in dynamic scene...
Object Tracking Using Incremental 2D-LDA Learning and Bayes Inference
Object Tracking Incremental 2D-LDA Bayes Inference
2010/12/17
The appearances of the tracked object and its surrounding background usually change during tracking. As for tracking methods using subspace analysis, fixed subspace basis tends
to cause tracking fail...
Naming faces is important for news videos browsing and indexing. Although some research efforts have been contributed to it, they only use the concurrent information between the face
and name or empl...
A Generic Virtual Content Insertion System Based on Visual Attention Model
Generic Virtual Content Insertion System Visual Attention Model
2010/12/17
This paper presents a generic Virtual Content Insertion (VCI) system based on visual attention analysis. VCI is an emerging application of video analysis and has been used in video augmentation and ad...
Attention-Driven Action Retrieval with DTW-based 3D Descriptor Matching
Attention-Driven Action Retrieval DTW-based 3D Descriptor Matching
2010/12/17
From visual perception viewpoint, actions in videos can capture high-level semantics for video content understanding and retrieval.However, action-level video retrieval meets great challenges, due to ...
In facial image analysis, image resolution is an important factor which has great influence on the performance of face recognition systems. As for lowresolution face recognition problem, traditional m...