DSpace Community: KAIST Graduate School of Culture Technology
http://hdl.handle.net/10203/530
KAIST Graduate School of Culture Technology2024-03-19T06:20:11ZHapMotion: motion-to-tactile framework with wearable haptic devices for immersive VR performance experience
http://hdl.handle.net/10203/318472
Title: HapMotion: motion-to-tactile framework with wearable haptic devices for immersive VR performance experience
Authors: Jung, Kyungeun; Kim, Sangpil; Oh, Seungjae; Yoon, Sang Ho
Abstract: We present a novel haptic rendering framework that translates the performer's motions into wearable vibrotactile feedback for an immersive virtual reality (VR) performance experience. Here, we employ a rendering pipeline that extracts meaningful vibrotactile parameters including intensity and location. We compute these parameters from the performer's upper-body movements which play a significant role in a dance performance. Therefore, we customize a haptic vest and sleeves to support vibrotactile feedback on the frontal and back parts of the torso and shoulders as well. To capture essential movements from the VR performance, we propose a method called motion salient triangle (MST). MST utilizes key skeleton joints' movements to compute the associated haptic parameters. Our method supports translating both choreographic and communicative motions into vibrotactile feedback. Through a series of user studies, we validate the user preference for our method compared to the conventional motion-to-tactile and audio-to-tactile methods.2024-03-01T00:00:00Z에지 컴퓨팅 기반 실제 환경에서 상호작용하는 다중 기기 협업 증강현실 프레임워크
http://hdl.handle.net/10203/318280
Title: 에지 컴퓨팅 기반 실제 환경에서 상호작용하는 다중 기기 협업 증강현실 프레임워크
Authors: 전진우; 우운택2024-02-01T00:00:00ZEmpirical investigation of occupant-centric thermal comfort in hotel guestrooms
http://hdl.handle.net/10203/314836
Title: Empirical investigation of occupant-centric thermal comfort in hotel guestrooms
Authors: Lee, Junsoo; CHA, SEUNG HYUN; Hong, Taehoon; Koo, Choongwan
Abstract: Given the importance of occupant satisfaction with thermal comfort in hotel accommodations, previous studies have assessed thermal comfort using either local or global standards. In a hotel catering to diverse guests, a single standard may constrain the formulation of an optimal strategy for improving occupant satisfaction. To address this challenge, this study empirically investigates occupant-centric thermal comfort in hotel guestrooms located in a hot and humid climatic region. To this end, a living-lab-based case study was conducted on a hotel guestroom in Hong Kong, wherein two types of thermal comfort improvement strategies were devised from both local and global perspectives. First, to improve thermal comfort in line with the local standard, it was determined that an ancillary fan coil unit (FCU) energy consumption of 6.0 kW h (approximately 34 % of the existing energy consumption) was required. Second, to improve thermal comfort in line with the global standard, an ancillary FCU energy consumption of 9.4 kW h (approximately 53 % of the existing energy consumption) was necessary. Consequently, in a hot and humid climatic region, the distribution of thermal comfort may vary depending on the type of guest (e.g., domestic or foreign), and ancillary cooling energy expenditure may be incurred to enhance a guest's thermal comfort. The proposed approach is expected to contribute to the creation of occupant-tailored thermal comfort by considering an individual's thermal acclimation to a specific climatic region from both local and global perspectives.2024-01-01T00:00:00ZAttention-based automatic editing of virtual lectures for reduced production labor and effective learning experience
http://hdl.handle.net/10203/314153
Title: Attention-based automatic editing of virtual lectures for reduced production labor and effective learning experience
Authors: Hwang, Eugene; Lee, Jeongmi
Abstract: Recently there has been a surge in demand for online video-based learning, and the importance of high-quality educational videos is ever-growing. However, a uniform format of videos that neglects individual differences and the labor-intensive process of editing are major setbacks in producing effective educational videos. This study aims to resolve the issues by proposing an automatic lecture video editing pipeline based on each individual's attention pattern. In this pipeline, the eye-tracking data are obtained while each individual watches virtual lectures, which later go through multiple filters to define the viewer's locus of attention and to select the appropriate shot at each time point to create personalized videos. To assess the effectiveness of the proposed method, video characteristics, subjective evaluations of the learning experience, and objective eye-movement features were compared between differently edited videos (attention-based, randomly edited, professionally edited). The results showed that our method dramatically reduced the editing time, with similar video characteristics to those of professionally edited versions. Attention-based versions were also evaluated to be significantly better than randomly edited ones, and as effective as professionally edited ones. Eye-tracking results indicated that attention-based videos have the potential to decrease the cognitive load of learners. These results suggest that attention-based automatic editing can be a viable or even a better alternative to the human expert-dependent approach, and individually-tailored videos have the potential to heighten the learning experience and effect.2024-01-01T00:00:00Z