Proceedings of the 44th Graphics Interface Conference最新文献_第2页

gMotion: A Spatio-Temporal Grammar for the Procedural Generation of Motion Graphics 运动图形程序生成的时空语法

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.14

Edoardo Carra, Christian Santoni, F. Pellacini

{"title":"gMotion: A Spatio-Temporal Grammar for the Procedural Generation of Motion Graphics","authors":"Edoardo Carra, Christian Santoni, F. Pellacini","doi":"10.20380/GI2018.14","DOIUrl":"https://doi.org/10.20380/GI2018.14","url":null,"abstract":"Creating by hand compelling 2D animations that choreograph several groups of shapes requires a large number of manual edits. We present a method to procedurally generate motion graphics with timeslice grammars. Timeslice grammars are to time what split grammars are to space. We use this grammar to formally model motion graphics, manipulating them in both temporal and spatial components. We are able to combine both these aspects by representing animations as sets of affine transformations sampled uniformly in both space and time. Rules and operators in the grammar manipulate all spatio-temporal matrices as a whole, allowing us to expressively construct animation with few rules. The grammar animates shapes, which are represented as highly tessellated polygons, by applying the affine transforms to each shape vertex given the vertex position and the animation time. We introduce a small set of operators showing how we can produce 2D animations of geometric objects, by combining the expressive power of the grammar model, the composability of the operators with themselves, and the capabilities that derive from using a unified spatio-temporal representation for animation data. Throughout the paper, we show how timeslice grammars can produce a wide variety of animations that would take artists hours of tedious and time-consuming work. In particular, in cases where change of shapes is very common, our grammar can add motion detail to large collections of shapes with greater control over per-shape animations along with a compact rules structure.","PeriodicalId":230994,"journal":{"name":"Proceedings of the 44th Graphics Interface Conference","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122369922","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

Mouse Cursor Movements towards Targets on the Same Screen Edge 鼠标光标移动到同一屏幕边缘上的目标

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.16

Shota Yamanaka

引用次数: 4

EZCursorVR: 2D Selection with Virtual Reality Head-Mounted Displays EZCursorVR: 2D选择与虚拟现实头戴式显示器

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.17

Adrian Ramcharitar, Robert J. Teather

引用次数: 30

Supporting Chinese Character Educational Interfaces with Richer Assessment Feedback through Sketch Recognition 通过草图识别支持汉字教育界面，提供更丰富的评价反馈

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.08

Tianshu Chu, Paul Taele, T. Hammond

{"title":"Supporting Chinese Character Educational Interfaces with Richer Assessment Feedback through Sketch Recognition","authors":"Tianshu Chu, Paul Taele, T. Hammond","doi":"10.20380/GI2018.08","DOIUrl":"https://doi.org/10.20380/GI2018.08","url":null,"abstract":"Students of Chinese as a Second Language (CSL) with primarily English fluency often struggle with the language's complex character set. Conventional classroom pedagogy and relevant educational applications have focused on providing valuable assessment feedback to address their challenges, but rely on direct instructor observation and provide constrained assessment, respectively. We propose improved sketch recognition techniques to better support Chinese character educational interfaces' realtime assessment of novice CSL students' character writing. Based on successful assessment feedback approaches from existing educational resources, we developed techniques for supporting richer automated assessment, so that students may be better informed of their writing performance outside the classroom. From our evaluations, our techniques achieved recognition rates of 91% and 85% on expert and novice Chinese character handwriting data, respectively, greater than 90% recognition rate on written technique mistakes, and 80.4% f-measure on distinguishing between expert and novice handwriting samples, without sacrificing students' natural writing input of Chinese characters.","PeriodicalId":230994,"journal":{"name":"Proceedings of the 44th Graphics Interface Conference","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126682107","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: 6

Viewpoint Snapping to Reduce Cybersickness in Virtual Reality 视点捕捉减少虚拟现实中的晕动症

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.23

Yasin Farmani, Robert J. Teather

引用次数: 51

It's the Gesture That (re)Counts: Annotating While Running to Recall Affective Experience 重要的是手势:在跑步时做注释以回忆情感体验

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.12

Felwah Alqahtani, Derek F. Reilly

{"title":"It's the Gesture That (re)Counts: Annotating While Running to Recall Affective Experience","authors":"Felwah Alqahtani, Derek F. Reilly","doi":"10.20380/GI2018.12","DOIUrl":"https://doi.org/10.20380/GI2018.12","url":null,"abstract":"We present results from a study exploring whether gestural annotations of felt emotion presented on a map-based visualization can support recall of affective experience during recreational runs. We compare gestural annotations with audio and video notes and a “mental note” baseline. In our study, 20 runners were asked to record their emotional state at regular intervals while running a familiar route. Each runner used one of the four methods to capture emotion over four separate runs. Five days after the last run, runners used an interactive map-based visualization to review and recall their running experiences. Results indicate that gestural annotation promoted recall of affective experience more effectively than the baseline condition, as measured by confidence in recall and detail provided. Gestural annotation was also comparable to video and audio annotation in terms of recollection confidence and detail. Audio annotation supported recall primarily through the runner's spoken annotation, but sound in the background was sometimes used. Video annotation yielded the most detail, much directly related to visual cues in the video, however using video annotations required runners to stop during their runs. Given these results we propose that background logging of ambient sounds and video may supplement gestural annotation.","PeriodicalId":230994,"journal":{"name":"Proceedings of the 44th Graphics Interface Conference","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128134238","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: 0

A conversation with CHCCS 2018 achievement award winner Alla Sheffer 与2018年CHCCS成就奖得主Alla Sheffer的对话

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.02

A. Sheffer

引用次数: 0

Adding Motion Blur to Still Images 为静止图像添加动态模糊

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.15

Xuejiao Luo, Nestor Z. Salamon, E. Eisemann

引用次数: 4

Computer-Aided Imagery in Sport and Exercise: A Case Study of Indoor Wall Climbing 运动与锻炼中的计算机辅助图像:以室内攀岩为例

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.13

Kourosh Naderi, Jari Takatalo, J. Lipsanen, Perttu Hämäläinen

{"title":"Computer-Aided Imagery in Sport and Exercise: A Case Study of Indoor Wall Climbing","authors":"Kourosh Naderi, Jari Takatalo, J. Lipsanen, Perttu Hämäläinen","doi":"10.20380/GI2018.13","DOIUrl":"https://doi.org/10.20380/GI2018.13","url":null,"abstract":"Movement artificial intelligence of simulated humanoid characters has been advancing rapidly through joint efforts of the computer animation, robotics, and machine learning communitites. However, practical real-life applications are still rare. We propose applying the technology to mental practice in sports, which we denote as computer-aided imagery (CAI). Imagery, i.e., rehearsing the task in one's mind, is a difficult cognitive skill that requires accurate mental simulation; we present a novel interactive computational sport simulation for exploring and planning movements and strategies. We utilize a fully physically-based avatar with motion optimization that is not limited by a movement dataset, and customize the avatar with computer vision measurements of user's body. We evaluate the approach with 20 users in preparing for real-life wall climbing. Our results indicate that the approach is promising and can affect body awareness and feelings of competence. However, more research is needed to achieve accurate enough simulation for both gross-motor body movements and fine-motor control of the myriad ways in which climbers can grasp climbing holds or shapes.","PeriodicalId":230994,"journal":{"name":"Proceedings of the 44th Graphics Interface Conference","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126642731","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

Control and Personalization:Younger versus Older Users' Experience of Notifications 控制和个性化:年轻用户与老年用户的通知体验

Proceedings of the 44th Graphics Interface Conference Pub Date : 2018-06-01 DOI: 10.20380/GI2018.19

Izabelle Janzen, F. Vitale, Joanna McGrenere

{"title":"Control and Personalization:Younger versus Older Users' Experience of Notifications","authors":"Izabelle Janzen, F. Vitale, Joanna McGrenere","doi":"10.20380/GI2018.19","DOIUrl":"https://doi.org/10.20380/GI2018.19","url":null,"abstract":"With the increasing ubiquity of mobile technology, users are more connected than ever. Notifications facilitate prompt connections to friends, family and work, but also distract us from what we're doing. We investigated how older and younger users thought about, interacted with, and personalized their notifications. We took a qualitative approach, conducting semi-structured interviews primed through a notification categorization activity. We interviewed 20 participants with equal numbers of younger (19-30 years old) and older (48-74) adults. We extend and refine previous qualitative work and show that while enjoyment plays a minor role in the experience of notifications, urgency, directness and social closeness are far more important factors, though context remains a nuanced issue. We found that older users especially desired a sense of control over their notifications that was difficult to achieve with current technology. Lastly, we provide information about what “categories” of notifications users perceive and expand how that can be used in new personalization systems. These results lead us to advocate a number of fundamental changes to how notifications are personalized.","PeriodicalId":230994,"journal":{"name":"Proceedings of the 44th Graphics Interface Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131202979","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: 1