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EmotionMap:Visual Analysis of Video Emotional Content on a Map

Journal of computer Science & Technology 2020年第3期35卷 576-591页

作者： Cui-Xia Ma Jian-Cheng Song Qian Zhu Kevin Maher Ze-Yuan Huang Hong-An Wang State Key Laboratory of Computer Science Institute of SoftwareChinese Academy of SciencesBeijing 100190China Beijing Key Laboratory of Human-Computer Interaction Institute of Software Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100190China Academy of Arts and Design Tsinghua UniversityBeijing 100084China

Emotion plays a crucial role in gratifying users’needs during their experience of movies and TV series,and may be underutilized as a framework for exploring video content and *** this paper,we present EmotionMap,a novel way of presenting emotion for daily users in 2D geography,fusing spatio-temporal information with emotional *** interface is composed of novel visualization elements interconnected to facilitate video content exploration,understanding,and *** allows understanding of the overall emotion at a glance while also giving a rapid understanding of the ***,we develop EmotionDisc which is an effective tool for collecting audiences’emotion based on emotion representation *** collect audience and character emotional data,and then integrate the metaphor of a map to visualize video content and emotion in a hierarchical *** combines sketch interaction,providing a natural approach for users’active *** novelty and the effectiveness of EmotionMap have been demonstrated by the user study and experts’feedback.

关键词： video visualization emotion analysis visual analysis sketch interaction

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Visual fatigue assessment and modeling based on ECG and EOG caused by 2D and 3D displays 54

Visual fatigue assessment and modeling based on ECG and EOG ...

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54th Annual SID Symposium, Seminar, and Exhibition 2016, Display Week 2016

作者： Yang, Xinpan Wang, Danli Hu, Haichen Yue, Kang State Key Laboratory of Computer Institute of Software Chinese Academy of Sciences Beijing China Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781510832909

Three-dimensional (3D) displays become more and more popular in many fields, because they can provide amazing visual effects. However, visual fatigue as one of the critical factors has seriously impeded the wide range of applications of 3D technology. Electrocardiograph (ECG) and electrooculogram (EOG) have been widely used for monitoring visual fatigue. In this paper, one more objective and effective visual fatigue evaluation model is proposed. Subjective scores (SS), heart rates (HR), blink frequency (BF), Sympathetic activity, Vagal activity, Sympathetic-vagal ratio (a measure of autonomic balance), Average of NN intervals (NN-MEAN) and Standard deviation of NN intervals (SDNN) of all subjects were collected to analyze the change of visual fatigue during the continuous viewing 3D/2D movie. The results showed that SS, HR, BF, Sympathetic activity and SDNN all increase with visual fatigue while NN-MEAN and Vagal activity decrease. As shown by the result of subjective scoring, the visual fatigue has an overall trend of increasing when viewing both 2D and 3D videos and it is higher in 3D condition than in 2D. Based on the results above, two models were built to predict visual fatigue from above indicates during continuous viewing 2D and 3D video processes respectively. The performance of the models makes a good prediction of visual fatigue. © (2016) by SID-the Society for Information Display. All rights reserved.

关键词： Three dimensional displays

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A comprehensive evaluation of visual fatigue on viewing small autostereoscopic display

A comprehensive evaluation of visual fatigue on viewing smal...

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2015 SID International Symposium

作者： Wang, Danli Yang, Xinpan Xie, Yaohua Wan, Zijian State Key Laboratory of Computer Institute of Software Chinese Academy of Sciences Beijing China Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China

Stereoscopic displays are promising and have many applications in various fields because they can provide amazing visual effects. However, one of the inevitable problems is that they also cause visual fatigue after durative viewing. Recent years, many researches have been proposed on the visual fatigue during stereoscopic viewing. But there are very few researches on the visual fatigue during a continuous viewing process, especially for those combine both subjective and objective evaluation. Besides, with the development and popularization of mobile devices, it is now possible for users to experience stereoscopic effects using mobile devices anytime and anywhere. In this paper, a comprehensive evaluation method is proposed. Subjective scores, Electrocardiograph (ECG) and eye movement of all subjects were collected when they were viewing stereoscopic videos. These data were then used to analyze the change of the visual fatigue during viewing. A mobile device was adopted and a comparative experiment was designed to assess the change of the visual fatigue when viewing 2D and 3D content respectively. Eighteen subjects were employed in the experiment, and the results show that the visual fatigue is generally greater when viewing 3D contents than when viewing similar 2D contents. © 2015 SID.

关键词： Eye movements

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A tangible programming system conveying event handling concept 15

A tangible programming system conveying event handling conce...

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14th International Conference on interaction Design and Children, IDC 2015

作者： Wang, Danli Qi, Yunfeng Zhang, Lan State Key Laboratory of Computer Sciences Institute of Software Chinese Academy of Sciences Beijing China Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781450335904

Tangible User Interfaces (TUIs) can create opportunities to learn programming for children, which have positive effect on children's development. TanProRobot is a tangible system designed for children at grade 1-2 to learn programming concepts. It consists of three parts, tangible programming blocks, the robot car and the manipulatives. The input and output of the system are both tangible. Children can program the robot car to act certain actions by arranging programming blocks. Also, children can interact with the car with manipulatives. TanProRobot aims to introduce event handling concept and sensors to children. During the game, children can also learn some traffic rules, which are import to self-security. © 2015 ACM.

关键词： tangible user interface tangible programming programming languages children

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What is that in your hand? Recognizing grasped objects via forearm electromyography sensing

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Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 2018年第4期2卷 1–24页

作者： Fan, Junjun Fan, Xiangmin Tian, Feng Li, Yang Liu, Zitao Sun, Wei Wang, Hongan State Key Laboratory of Computer Science Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China School of Computer and Control Engineering University of Chinese Academy of Sciences Beijing China Google Research and Machine Intelligence Mountain ViewCA United States TAL AI Lab Beijing China

Knowing the object in hand can offer essential contextual information revealing a user's fine-grained activities. In this paper, we investigate the feasibility, accuracy, and robustness of recognizing the uninstrumented object in a user's hand by sensing and decoding her forearm muscular activities via off-the-shelf electromyography (EMG) sensors. We present results from three studies to advance our fundamental understanding of the opportunities that EMG brings in object interaction recognition. In the first study, we investigated the influence of physical properties of objects such as shape, size, and weight on EMG signals. We also conducted a thorough exploration of the feature spaces and sensor positions which can provide a solid base to rely on for future designers and practitioners for such interactive technique. In the second study, we assessed the feasibility and accuracy of inferring the types of grasped objects via using forearm muscular activity as a cue. Our results indicate that the types of objects can be recognized with up to 94.2% accuracy by employing user-dependent training. In the third study, we investigated the robustness of this approach in a realistic office setting where users were allowed to interact with objects as they would naturally. Our approach achieved up to 82.5% accuracy in discriminating 15 types of objects, even when training and testing phrases were purposefully performed on different days to incorporate changes in EMG patterns over time. Overall, this work contributes a set of fundamental findings and guidelines on using EMG technologies for object-based activity tracking. © 2018 Association for Computing Machinery.

关键词： Object detection

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TanProStory: A tangible programming system for children's storytelling 33

TanProStory: A tangible programming system for children's st...

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33rd Annual CHI Conference on human Factors in Computing Systems, CHI EA 2015

作者： Qi, Yunfeng Wang, Danli Zhang, Lan Shi, Yining Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing China State Key Laboratory of Computer Sciences Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781450331463

Object-oriented programming is easily accessible by beginners, since it allows for modeling real-world entities as software objects. Storytelling is a natural way to introduce the basic concepts behind object-oriented programming. To convey object-oriented programming concepts to children, such as object, attribute and etc., we present a new tangible programming tool-TanProStory, for children in 1-3 grades. Children can tell a story by arranging programming blocks to initialize a character and construct a program controlling its action. TanProStory consists of three parts: Programming blocks, Animation Game and Sensor input module. Programming blocks in TanProStory are surface-sensitive, i.e. only the command on the top surface can be detected. We conducted a preliminary user study and analyzed the results, which can guide a better design of TanProStory.

关键词： Object oriented programming

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A new image retrieval method based on optimal color matching

A new image retrieval method based on optimal color matching

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2006 International Conference on Image Processing, computer Vision, and Pattern Recognition, IPCV'06

作者： Huang, Xin Zhang, Shijia Wang, Guoping Wang, Heng Human-Computer Interaction and Multimedia Lab. Computer Science Department Peking University Beijing 100871 China

ISBN: (纸本)9781932415957

Color is one of the most important low-level features used in image analysis and retrieval. In this paper we introduce an algorithm for extracting compact color feature in the CIElab color space. Our method is based on an ant colony clustering algorithm, which helps us develop a perceptually based image similarity metric. We propose a dominant color and area percentage model, which provides a very compact color feature representation of images. Besides image similarity metric is developed based on dominant colors matching. The algorithm introduced in this paper is well suited for creating small color descriptors and is efficient. It is suitable for image representation, matching and retrieval. It also has some important advantages for content-based image retrieval system, such as great reduction of the feature file sizes needed for storage and indexing.

关键词： Clustering algorithms

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Visual fatigue during continuous viewing the 3D movie 27

Visual fatigue during continuous viewing the 3D movie

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27th Annual Stereoscopic Displays and Applications Conference, SD and A 2016

作者： Wang, Danli Yang, Xinpan Hu, Haichen Wang, Helei State Key Laboratory of Computer Institute of Software Chinese Academy of Sciences Beijing100190 China Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences Beijing100190 China

Three-dimensional (3D) displays become more and more popular in many fields. However, visual fatigue is one of the critical factors that impede the wide range of applications of 3D technology. Although many studies have investigated the 3D visual fatigue, a few of them are based on continuous viewing 3D contents. In this paper, we propose a method to evaluate visual fatigue through subjective scoring and objective measuring the physiological parameters during the continuous viewing 3D/2D movie. In the viewing, we test the objective and subjective indicators, including the heart rate (HR), blink frequency (BF) and percentage of eyelid closure over the pupil over time (PERCLOS) and the subjective scoring (SS). Before and after viewing the video, VRT, PMA and questionnaires are measured. Experimental results showed that the subjective score and objective indicates of visual fatigue increased gradually with viewing time although it was fluctuated. The symptoms of visual fatigue were generally more serious after viewing 3D movie than 2D ones. Based on the results above, a model was built to predict visual fatigue from HR and BF during continuous viewing 3D video processes. © 2016 Society for Imaging Science and Technology.

关键词： Surveys

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Motion estimation of multiple depth cameras using spheres

Motion estimation of multiple depth cameras using spheres

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作者： Deng, Xiaoming Liu, Jie Tian, Feng Chang, Liang Wang, Hongan Beijing Key Lab of Human-Computer Interaction Institute of Software Chinese Academy of Sciences China College of Information Science and Technology Beijing Normal University China

ISBN: (纸本)9781479957514

Automatic motion estimation of multiple depth cameras has remained a challenging topic in computer vision due to its reliance on the image correspondence problem. In this paper, spherical objects are employed to estimate motion parameters between multiple depth cameras. We move a sphere several times in the common view of depth cameras. We fit the spherical point clouds to get the sphere centers in each depth camera system, and then introduce a factorization based approach to estimate motions between the depth cameras. Both simulated and real experiments show the robustness and effectiveness of our method. © 2014 IEEE.

关键词： Motion estimation

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A unified user behavior model for trajectory-based tasks with different types of path constraints

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Science China(Information Sciences) 2023年第10期66卷 316-318页

作者： Hao ZHANG Jin HUANG Huawei TU Feng TIAN Guozhong DAI Hongan WANG Beijing Key Laboratory of Human-Computer Interaction Institute of Software Chinese Academy of Sciences School of Computer Science and Technology University of Chinese Academy of Sciences School of Artificial Intelligence University of Chinese Academy of Sciences Department of Computer Science and Information Technology La Trobe University

An important research branch of human-computer interaction(HCI) is to develop predictive models for human performance in fundamental interactions [1]. On today's graphical user interface(GUI), users often implicitly perform various trajectory-based interactions, such as navigating through menus [2], entering the boundary of a button,

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