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비골절성 경추 손상에 동반된 척수 손상에 대한 임상적 연구: 아탈구와 SCIWORA (Spinal Cord Injury Without Radiographic Abnormality)
한상국 ( Han Sang Gug ),신동혁 ( Sin Dong Hyeog ),박상오 ( Park Sang O ),최필조 ( Choe Pil Jo ),권운용 ( Kwon Un Yong ),송형곤 ( Song Hyeong Gon ),송근정 ( Song Geun Jeong ),정연권 ( Jeong Yeon Gwon ),강보승 ( Kang Bo Seung ) 대한외상학회 2002 大韓外傷學會誌 Vol.15 No.2
Background : Cervical spine injuries with or without spinal cord injury are the most commonly missed serious injuries, and the missed or delayed diagnosis may cause serious, catastrophic consequences for patients and have medico-legal implications for phy
DirectX 기반 다채널 영상 감시 시스템 구현 및 성능분석
정연권,정선태 崇實大學校 生産技術硏究所 2002 論文集 Vol.32 No.-
Multichannel visual monitoring systems such as DVR (Digital video Recording System)s have to process video data steams which are characterized by their large volume of data and their continuous time properties. Thus, multichannel visual monitoring systems may not show satisfactory performances in display, recording, retrieval and playback of video data if one does not design the architecture of S/W precessing of video data streams efficiently. Microsoft Windows environments provide DirectX for efficent processing of multimedia streams. One additional advantage of DirectX is that many commercial and open source multimedia CODECs support DirectX. Thus, if one applies DirectX technology in windows based multichannel visual monitoring systems, one may achieve performance gains and flexibility in the choice of video compression CODECs. In this paper, we present a multichannel monitoring system efficiently designed based upon DirectX. Improvement of performances in respect of speed in display, recording, retrieval and playback of video data is analyzed and verified through experiments.
영상 감시 시스템에서의 개선된 Tearing 현상 방지 디스플레이 시스템
이동학,정연권,정선태 崇實大學校 生産技術硏究所 2001 論文集 Vol.31 No.-
In display systems employing an analog monitor, the tearing artifact such that an window screen is divided into two parts showing different scenes can occur when the change of scenes in the moving pictures is very fast, but the frame buffer's refresh rate does not match the monitor's scanning frequency. In the DVR system, a recently popularized visual monitoring system, the tearing artifacts becomes more serious since the frame buffer's refresh rate is vey high due to the requirement of multi-channel display. In this paper, we propose an improved display system for windows-based DVR systems which prevents the tearing artifacts without daterioration of display speed perfromance. The efficiency of the proposed display system is verfied through experiments.