Yeongil Ryu's research while affiliated with Sungkyunkwan University and other places
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Publications (6)
This paper presents two methodologies for delivering multimedia content to visually impaired people with the use of a haptic device and braille display. Based on our previous research, the research using Kinect v2 and haptic device with 2D+ (RGB frame with depth) data has the limitations of slower operational speed while reconstructing object detai...
This paper proposes a novel High Efficiency Video Coding (HEVC) Tile partitioning method for parallel processing by analyzing the computing ability of asymmetric multicores. The proposed method (i) analyzes the computing ability of asymmetric multicores and (ii) makes a regression model of computational complexity per video resolutions. Finally, th...
In this paper, we propose a new haptic telepresence system for individuals with visual impairments (VIs) using a red-green-blue-depth (RGB-D) sensor and a haptic device. Recent improvements in RGB-D sensors have enabled real-time access to 3D spatial information. However, the real-time representation of the tangible haptic experience has not been s...
Recently, there is an emerging need for parallel UHD video processing, and the usage of computing systems that have an asymmetric processor such as ARM big.LITTLE is actively increasing. Thus, a new parallel UHD video processing method that is optimized for the asymmetric multicore systems is needed. This paper proposes a novel HEVC tile partitioni...
With a new video coding standard high efficiency video coding (HEVC), the ultra high definition (UHD) TV service with robust video streaming technology is emerging in the TV industry. This paper addresses the system architecture for the UHD video streaming and proposes two main ideas: (i) picture prioritization method, (ii) error concealment mode s...
Citations
... Em [12], propõe-se a codificação de uma câmera RGB em um dispositivo vestível com formato de camisa, equipado com motores de vibração. Já em [6], a transcrição para um display em braille é realizada para representar o contorno dos objetos na cena, facilitando sua identificação. Em [5], é desenvolvido um dispositivo que auxilia pessoas com deficiência visual a mirar um alvo em um display, utilizando feedback vibrotátil. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/755579568005121-1557155615411_Q64/Eun-Seok-Ryu-3.jpg)
... In this study, we explore the possibility of its usage in vibrotactile displays to convey information. Previous research studies on vibrotactile displays and devices include navigation assistance, (5,6) shape determination, (7)(8)(9) and screen location searching. (10)(11)(12) With vibrotactile displays, the researchers used sonification to guide their users in aiming their mobile devices. ...
... However, the bandwidth-limited wireless commodity mobile devices are inappropriate to stream the volumetric contents in crowded communication environments [9]- [12]. Many research contributions are proposed to solve the problem (e.g., cloud computing and frustum culling [13]- [15]). However, these methods mainly consider ideal transmission networks, and limited real-world bandwidth communication networks still constrain multi-user AR applications. ...
... The method optimizes the decoding time of a video sequence by partitioning and allocating non-uniform tiles to suitable cores (e.g., by allocating big tiles to big cores, little tiles to little cores). The proposed method is based on a regression model that indicates a correlation between the resolutions and decoding complexity (decoding time) [24][25][26]. To build this model, we used PeopleOnStreet that have a resolution of 3840 × 2160, QP 22, and random access (RA) coding structure as a test sequence. ...
... Future display applications call for life-like colours and crystal-clear accuracy [1][2][3]. At the same time, the balance between high quality and low cost needs to be considered [4]. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/708803406360576-1546003309445_Q64/Joongheon-Kim.jpg)
