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Game interface using hand gesture recognition 游戏界面采用手势识别
Doe-Hyung Lee, Kwang-seok Hong
In this paper, we propose a real-time hand gesture recognition system based on difference image entropy using a stereo camera. Existing systems use hand detection primarily with some type of marker. Our system, however, uses a real-time hand image recognition system. In the detection step, we implement a depth map using a sum of absolute differences based on the acquired right-left image using a stereo camera. This system detects a foreground object and perceives it as a hand. The hand gesture recognition system uses the difference image entropy of the input image and the average image. To evaluate the performance of the proposed technology, we implement a recognition experiment using the hand gesture 240 database. The proposed method shows an average recognition rate of 85%. Using the proposed method, we implement a Chinese chess game based on hand gesture recognition.
本文提出了一种基于差分图像熵的立体相机实时手势识别系统。现有的系统主要使用带有某种类型标记的手部检测。然而,我们的系统使用了实时手部图像识别系统。在检测步骤中,我们基于立体相机获取的左右图像,使用绝对差值和实现深度图。该系统检测前景物体并将其视为一只手。手势识别系统利用输入图像与平均图像的差熵。为了评估该技术的性能,我们使用手势240数据库进行了识别实验。该方法的平均识别率为85%。利用该方法,我们实现了一个基于手势识别的中国象棋游戏。
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引用次数: 42
DCC analysis of two exchange markets with a factor of Japan dollars: Study of Philippine and Indonesia exchange markets 考虑日元因素的两个外汇市场的DCC分析:菲律宾和印度尼西亚外汇市场的研究
Wann-Jyi Horng, T. Hu, Ju-Lan Tsai
This article conducts an empirical investigation examining the model construction and the association between Philippine and Indonesia exchange markets by using the data of Philippine Peso exchange rates against US Dollar and the Indonesia exchange rate against US Dollar from January 2003 to December 2009. In addition, we also adopt Student's t distribution to analyze the proposed model. The empirical results show that the mutual effects of the Philippine and the Indonesia exchange markets may be constructed in bivariate IGARCH (1, 1) model with a DCC. Our findings suggest that there exists a positive relationship between Philippine and Indonesia exchange market returns, that is, the volatilities of these two exchange market returns are synchronously influence. Furthermore, the average estimator of the DCC coefficients of two exchange market returns equals to 0.3067. The Japan exchange rate return volatility will also affect the variation risk of the Philippine exchange market; likewise the Japan exchange rate return volatility will impact the variation risk of the Indonesia's exchange market. Additionally, Philippine and Indonesia stock markets do not have the asymmetrical effect in the research data period.
本文利用2003年1月至2009年12月的菲律宾比索兑美元汇率和印尼比索兑美元汇率数据,对菲律宾和印尼外汇市场的模型构建及其关联性进行了实证研究。此外,我们还采用Student's t分布来分析所提出的模型。实证结果表明,菲律宾和印度尼西亚外汇市场的相互影响可以用二元IGARCH(1,1)模型和DCC模型来构建。我们的研究结果表明,菲律宾和印度尼西亚的交易所市场收益之间存在正相关关系,即这两个交易所市场收益的波动率是同步影响的。此外,两个交易所市场收益的DCC系数的平均估计值为0.3067。日本汇率收益率的波动也会影响菲律宾外汇市场的变动风险;同样,日本汇率收益率的波动也会影响印尼外汇市场的变动风险。此外,菲律宾和印度尼西亚股市在研究数据期内不存在不对称效应。
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引用次数: 1
The initiative experiments for utilizing real cards in online Trading Card Game 在网络集换卡游戏中首次尝试使用真卡牌
Jong-Hyoun Kim, Teresa Cho
Current virtual game interfaces can't comprehend our metaphor, can't reflect on our natural behavior aspect, can't make us immerse into a game, and makes a barrier between virtual game space and our real behavior. It is very challenging issue to use real objects tightly related to human-being's behaviors or reactions for interacting with game applications. Interactive AR interfaces may augment users' perception of the real world by adding virtual information to it. In addition, users' interaction with the system may be augmented, making the computer as seamlessly as possible. We attempted an experiment on camera-based interface for online TCG game application which emits excellence of AR. This experiment uses real TCG cards which are recognized by texture based AR algorithm. These initiative experiments not only guarantee the consistency between the game-player's behaviors and the gaming environment, but also make real and virtual world seamless. This consistency increases friendliness and immersion to a game as well as the ability of bodily sensation for a game. This new interface takes the results of human-being's behaviors as input event, and will open the new field of digital interfaces for forthcoming ubiquitous computing.
目前的虚拟游戏界面不能理解我们的隐喻,不能反映我们的自然行为方面,不能使我们沉浸在游戏中,在虚拟游戏空间和我们的真实行为之间形成了屏障。使用与人类行为或反应紧密相关的真实物体与游戏应用进行交互是一个非常具有挑战性的问题。交互式AR界面可以通过添加虚拟信息来增强用户对现实世界的感知。此外,用户与系统的交互可能会增强,使计算机尽可能无缝。我们尝试了一个基于摄像头的在线TCG游戏应用界面的实验,该实验使用了基于纹理的AR算法识别的真实TCG卡牌。这些主动性实验既保证了玩家行为与游戏环境的一致性,又使现实世界与虚拟世界无缝衔接。这种一致性增加了游戏的友好性和沉浸感,以及对游戏的身体感觉能力。这种新的接口以人类行为的结果作为输入事件,将为即将到来的普适计算打开数字接口的新领域。
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引用次数: 4
Unified fast authentication procedure in service and access networks for NGN NGN业务网络和接入网的统一快速认证流程
Kwihoon Kim, Chunghyun Ahn, Jinwoo Hong
This paper mainly focuses on improving NGN authentication performance and security to reduce the critical IMS service authentication procedure with redundant reduction in fixed and mobile networks. In the NGN specifications, authentication is performed at both the NASS and the IMS networks before a user equipment can access the IMS services. Though the NACF-IMS bundled authentication was proposed for this purpose, it cannot protect authentication procedure against IP address spoofing attack and channel between a user equipment and P-CSC-FE due to an absence of key sharing method. We observe that many steps in this two-pass authentication are similar. Based on our observation, this needs to perform NACF authentication. At the IMS service level, authentication is implicitly performed in IMS registration for NGN networks. Simulation results demonstrate that the proposed scheme provides better reduction of authentication procedure and performance for arrival rates with NGN environments than other methods.
本文主要研究如何通过减少固定网络和移动网络的冗余,提高下一代网络的认证性能和安全性,从而减少关键的IMS业务认证过程。在NGN规范中,用户设备接入IMS业务需要同时经过NASS和IMS网络的认证。虽然为此提出了NACF-IMS捆绑认证,但由于缺乏密钥共享方法,无法保护认证过程免受IP地址欺骗攻击和用户设备与P-CSC-FE之间的通道。我们注意到,这种双通道身份验证中的许多步骤是相似的。根据我们的观察,这需要执行NACF身份验证。在IMS服务层,NGN网络在注册IMS时隐式进行认证。仿真结果表明,与其他方法相比,该方案在NGN环境下可以更好地减少认证过程和提高到达率。
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引用次数: 0
Empirical analysis on technological innovation risk in China's financial enterprises based on AHP method 基于AHP方法的中国金融企业技术创新风险实证分析
W. Hongmei, Li Shijiao
With the rapid development of information technology revolution, technological innovation has brought increasing benefit to financial enterprises in China. However, the strategic priority and intense competition of technological innovation in China's financial business, as well as the uncertainty and dynamic of their development process, determine the high risk of technological innovation in China' financial enterprises. This paper analyses the risk in the process of technological innovation, measures the risk in China's financial enterprises based on AHP method, and makes an empirical analysis of the network bank as an example.
随着信息技术革命的迅猛发展,技术创新为中国金融企业带来了越来越大的效益。然而,技术创新在中国金融业务中的战略优先性和激烈竞争,以及其发展过程的不确定性和动态性,决定了中国金融企业技术创新的高风险。本文分析了技术创新过程中的风险,运用层次分析法对中国金融企业的风险进行了测度,并以网络银行为例进行了实证分析。
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引用次数: 1
Evaluating information representation based on cognitive differences 基于认知差异的信息表征评估
Natrah Abdullah, W. Adnan, N. Noor
In Human Computer Interaction, visual representation is related to how information is presented and represented. This study seeks to determine if visual representation features in an interface design are beneficial to certain types of users. We conduct an experiment that evaluates individual differences in 3-dimensional view with interaction (3DI) and 3-dimensional view without interaction (3DL). The 3DI is categorized as an active approach and 3DL as a passive approach of task handling. The findings generally show changes in preferences when 3D view with an active approach of information representation is introduced. This finding indicates that preferences in 3DI view have an association with cognitive styles on task handling.
在人机交互中,视觉表示与信息如何呈现和表示有关。本研究旨在确定界面设计中的视觉表现特征是否对某些类型的用户有益。我们进行了一项实验,评估了有交互的三维视图(3DI)和无交互的三维视图(3DL)的个体差异。3DI分为主动方法,3DL分为被动任务处理方法。研究结果普遍表明,当采用主动信息表示方法的3D视图时,偏好会发生变化。这一发现表明,3DI视图的偏好与任务处理的认知风格有关。
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引用次数: 0
Appropriate hash functions selection for message authentication in electronic tender for insurance companies 选择合适的哈希函数进行保险公司电子标书信息认证
Ava Pourkashani, R. Rzayev, F. Faghihi
Nowadays, expansion of insurance companies provides competitive market, in which several companies participate in tenders with huge price. as a lot of tenders are held based on electronic form, tender documents security is taken into consideration as high level technical issue. In this paper, decision making algorithm based on AHP for suitable authentication function in e-tender of insurance companies is proposed. For this reason, three kinds of applied hash functions (CBC-MAC, SHA-1 and HMAC) are evaluated based on throughput, security and universality criteria.
如今,保险公司的扩张提供了竞争激烈的市场,在这个市场中,几家公司以巨额价格参与投标。由于很多投标都是以电子形式进行的,因此投标文件的安全性是一个高层次的技术问题。本文提出了一种基于层次分析法的保险公司电子投标中合适认证功能的决策算法。因此,基于吞吐量、安全性和通用性标准,对三种应用的哈希函数(CBC-MAC、SHA-1和HMAC)进行了评估。
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引用次数: 1
Crowd density analysis using co-occurrence texture features 基于共现纹理特征的人群密度分析
Wenhua Ma, Lei Huang, Chang-ping Liu
Crowd density analysis is crucial for crowd monitoring and management. This paper proposes a novel method for crowd density analysis. According to the framework, input images are firstly divided into patches, and each patch is associated with a density label based on its texture features. Finally, local information is synthesized for global density estimation. Local image content is described by features based on co-occurrence textures and visual words processing chain. Experiments show that the system is highly robust to scene changes and background noise yet remain discriminative for crowd detection.
人群密度分析对人群监测和管理至关重要。本文提出了一种新的人群密度分析方法。根据该框架,首先将输入图像划分为小块,每个小块根据其纹理特征与密度标签相关联。最后,综合局部信息进行全局密度估计。局部图像内容采用基于共现纹理和视觉词处理链的特征描述。实验表明,该系统对场景变化和背景噪声具有较强的鲁棒性,对人群检测具有较强的判别能力。
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引用次数: 54
Study of claim support system for hydraulic engineering based on CBR and RBR 基于CBR和RBR的水利工程索赔支持系统研究
Wang Wei
It is shown that engineering change management is one of the most important things in hydraulic engineering, which will affect not only the engineering investment but also the construction period. Considering the shortages of the experience and the experts in construction claims, case-based reasoning (CBR) and rule-based reasoning (RBR) in artificial intelligence were used in engineering change and construction claim management. This method summarized the previous cases in engineering claims of hydraulic engineering and the cases were stored structurally. A preliminary model was also proposed, which was currently used in the construction management of trans-basin water transfer engineering.
研究表明,工程变更管理是水利工程的重要内容之一,它不仅会影响工程投资,还会影响工期。针对工程变更和工程索赔管理中经验不足和专家不足的问题,将人工智能中的基于案例的推理(CBR)和基于规则的推理(RBR)应用于工程变更和工程索赔管理中。该方法总结了以往水利工程索赔案例,并将案例进行了结构化存储。提出了一种初步的跨流域调水工程施工管理模型。
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引用次数: 0
Traceability and structuration coordination interactions in design 设计中的可追溯性和结构协调的相互作用
N. Matta, Hassan Atifi, M. Sediri, Mohammed Sagdal
In order to promote reuse, we have to help designers understand the context of previous projects . We have to build project memories that not only simply archive previous project solutions but that document the reasons why these solutions were chosen. These reasons have to show experts skills, document the representation of treated problems and the decision context, etc. This study presents a way to analyze mediated discussions using a discussion forum. We use pragmatic analysis in order to identify criteria that help to analyze coordination messages in design projects. These criteria can help to emphasize the context of decision making based on coordination interactions.
为了促进重用,我们必须帮助设计师了解以前项目的背景。我们必须建立项目记忆,不仅要简单地存档以前的项目解决方案,还要记录选择这些解决方案的原因。这些原因必须显示专家的技能,记录处理过的问题的表示和决策上下文等。本研究提出了一种使用论坛分析中介讨论的方法。我们使用实用分析来确定有助于分析设计项目中的协调消息的标准。这些标准有助于强调基于协调相互作用的决策制定的背景。
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引用次数: 0
期刊
5th International Conference on Computer Sciences and Convergence Information Technology
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