2019 International Conference on Cyberworlds (CW)最新文献_第4页

Simulation Controlling Method for Generating Desired Water Caustics 生成理想水焦散的仿真控制方法

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00034

Kenta Suzuki, Makoto Fujisawa, M. Mikawa

引用次数: 1

Mixed Reality User Interface for Astronauts Procedure Viewer 宇航员程序查看器的混合现实用户界面

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/cw.2019.00011

K. Helin, J. Karjalainen, Pauline Kiernan, M. Wolff, David Martinez Oliveira

引用次数: 1

Query by Partially-Drawn Sketches for 3D Shape Retrieval 用局部绘制的草图查询三维形状检索

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00020

Shutaro Kuwabara, Ryutarou Ohbuchi, T. Furuya

{"title":"Query by Partially-Drawn Sketches for 3D Shape Retrieval","authors":"Shutaro Kuwabara, Ryutarou Ohbuchi, T. Furuya","doi":"10.1109/CW.2019.00020","DOIUrl":"https://doi.org/10.1109/CW.2019.00020","url":null,"abstract":"Hand-drawn sketch is a powerful modality to query 3D shape models. However, specifying a detailed 3D shape by a sketch on the first try without reference (i.e., 3D model or real object) is difficult. In this paper, we aim at a sketch-based 3D shape retrieval system that tolerates coarsely drawn or incomplete sketches having small number of strokes. Such a system could be used to start a sketch-retrieve-refine interactive loop that could lead to a 3D shape having required shape details. Proposed algorithm uses deep feature embedding into common feature embedding space to compare sketches and 3D shape models. To handle coarse or incomplete sketches, a sketch, which is a sequence of strokes, is augmented by removing stroke for training a pair of DNNs to extract sketch features. A sketch feature is a fusion of an image based feature extracted by a convolutional neural network (CNN) and a 2D point sequence feature extracted by using a recurrent neural network (RNN). Embedding of 3D shape feature and the sketch feature is learned by using triplet loss. Experimental evaluation of the proposed method is performed using (simulated) incomplete sketches created by removing part of their strokes. The experiments show that sketch stroke removal augmentation significantly improved retrieval accuracy if queried by using such incomplete sketches.","PeriodicalId":117409,"journal":{"name":"2019 International Conference on Cyberworlds (CW)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121126418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Realistic Folded Surface Modeling from Sketching 从草图的现实折叠表面建模

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00033

Yufei Zheng, Hatsu Shi, S. Saito

引用次数: 1

Idle-State Detection in Multi-user Motor Imagery Brain Computer Interface with Cross-Brain CSP and Hyper-Brain-Network 基于跨脑CSP和超脑网络的多用户运动图像脑机接口的空闲状态检测

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00045

Li Zhu, Chongwei Su, Gaochao Cui, Changle Zhou, Jianhai Zhang, Wanzeng Kong

{"title":"Idle-State Detection in Multi-user Motor Imagery Brain Computer Interface with Cross-Brain CSP and Hyper-Brain-Network","authors":"Li Zhu, Chongwei Su, Gaochao Cui, Changle Zhou, Jianhai Zhang, Wanzeng Kong","doi":"10.1109/CW.2019.00045","DOIUrl":"https://doi.org/10.1109/CW.2019.00045","url":null,"abstract":"Motor imagery (MI) is a kind of spontaneous controlled brain computer interface (BCI) paradigm, which is more likely to the concept of 'mind control'. The idle state detection is an important problem to construct a robust MI-BCI system since it needs to tell whether the subject is in MI task and the idle state contains much diverse cases. Herein, EEG-based multi-user BCI refers to two or more subjects engage in a coordinate task while their EEG are simultaneously recorded. The objective of this paper is to explore how the multi-user MI-BCI performance in idle detection based on CSP (common spatial pattern) and brain-network features. We proposed several strategies for cross-brain feature fusion. Results show that 1) Through CSP features, the classification accuracy of cross-brain outperforms the single brain CSP feature across different strategies. 2) Through brain-network features, the classification accuracy of concatenated with the paired subjects outperforms the single brain-network, while the inter-brain-network is lower than single subject 3) alpha frequency band shows better performance than other bands. Multi-user MI-BCI would be a potential way to improve the idle state detection accuracy.","PeriodicalId":117409,"journal":{"name":"2019 International Conference on Cyberworlds (CW)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122278796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Determining Necessary Length of the Alternating Series Test for Parkinson's Disease Modelling 确定帕金森病模型交替串联试验的必要长度

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00050

S. Nõmm, Tanel Kossas, A. Toomela, Kadri Medijainen, P. Taba

引用次数: 2

Computational Alleviation of Homonymous Visual Field Defect with OST-HMD: The Effect of Size and Position of Overlaid Overview Window 基于OST-HMD的同义视野缺陷的计算缓解:覆盖全景窗口大小和位置的影响

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00036

Xi Zhao, K. Go, K. Kashiwagi, M. Toyoura, Xiaoyang Mao, I. Fujishiro

{"title":"Computational Alleviation of Homonymous Visual Field Defect with OST-HMD: The Effect of Size and Position of Overlaid Overview Window","authors":"Xi Zhao, K. Go, K. Kashiwagi, M. Toyoura, Xiaoyang Mao, I. Fujishiro","doi":"10.1109/CW.2019.00036","DOIUrl":"https://doi.org/10.1109/CW.2019.00036","url":null,"abstract":"Visual field defect (VFD) refers to a symptom in which a patient loses part of his/her field of view (FoV). Medical therapy can halt the progression of VFD, but complete recovery is impossible. In this paper, we propose a computational method for alleviating the restricted FoV with an optical see-through head-mounted display (OST-HMD), where an overview scene captured by the installed camera is overlaid on the persisting FoV. Since the overview window occludes with the real world scene, there is a trade-off between the augmented contextual information and the local unscreened information. We hypothesized that such a trade-off can be resolved by taking into consideration the size of the overview window and its displacement from the center of the unimpaired FoV. We therefore conducted an empirical evaluation through a Whac-A-Mole type of task with ten VFD-imitative subjects, where three sizes of an overview window with a fixed aspect ratio and seven positions in terms of elevation and azimuth were used combinatorially on an OST-HMD to find the best size and position of the overview window. It was statistically proven that for left-sided homonymous VFD-imitative subjects, the performance of the task was better when the medium-sized overview window was placed in the lower right position. The obtained result can legitimate default settings for the proposed VFD alleviation method.","PeriodicalId":117409,"journal":{"name":"2019 International Conference on Cyberworlds (CW)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132140181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Applying Firefly Algorithm to Data Fitting for the Van der Waals Equation of State with Bézier Curves 应用萤火虫算法拟合bsamzier曲线Van der Waals状态方程

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00042

Almudena Campuzano, A. Iglesias, A. Gálvez

引用次数: 3

An Efficient Diminished Reality Approach Using Real-Time Surface Reconstruction 一种基于实时表面重建的高效减真实感方法

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00010

Christian Kunert, Tobias Schwandt, W. Broll

{"title":"An Efficient Diminished Reality Approach Using Real-Time Surface Reconstruction","authors":"Christian Kunert, Tobias Schwandt, W. Broll","doi":"10.1109/CW.2019.00010","DOIUrl":"https://doi.org/10.1109/CW.2019.00010","url":null,"abstract":"Augmented reality applications become more and more important to enhance our daily life and workflows. The possibility of showing additional virtual content in a camera stream is helpful for many different use cases like room planning where such applications can offer a simple and intuitive visualization. However, augmented reality applications can suffer from the interference by real objects that may disrupt the user experience. In recent years, there has been research regarding the removal of real objects from camera streams by applying diminished reality techniques. Current approaches are generally limited to flat objects, video streams with little camera movement, or can only remove objects in front of simple and mostly planar backgrounds. In our approach, we show a robust and efficient way to remove a selected 3D object from the camera stream visually. The removal is based on a dense 3D reconstruction of the physical environment stored in a voxel grid that can be created and extended on-the-fly. Hereby, an undesired object can be replaced by a background rendered from the reconstruction allowing for more complex environments than previous approaches. Furthermore, remaining holes by the removal of the object are removed applying an inpainting approach. Finally, we apply color correction to get a seamless transition between the virtual content and the camera image.","PeriodicalId":117409,"journal":{"name":"2019 International Conference on Cyberworlds (CW)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123421258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Augmented Reality Hologram 增强现实全息图

2019 International Conference on Cyberworlds (CW) Pub Date : 2019-10-01 DOI: 10.1109/CW.2019.00064

Jia Jun Gan, Owen Noel Newton Fernando

引用次数: 1