Multi-user Autostereoscopic Display Using Pupil Tracker
In this paper, we describe a 2D-compatible multi-user autostereoscopic display based on a pupil position tracker. It employs Fresnel lens to form separate viewing regions for left and right eyes, where the corresponding left or right image is seen. TFT LCD is used as imaging panel and LED array is used as steerable illumination backlight, enabling the viewing regions to follow the viewers eyes. A highprecision multi-user pupil tracker based on AdaBoost algorithm provides real-time detection of pupil locations. AVR MCU is applied for system control. As a result, within view angle of ±25° horizontally, 1~3 users may get vivid 3D images on the 3D display at the same time and move freely. The total responding time of the system is less than 20 ms.
autostereoscopic fresnel lens LCD LED pupil track MCU
R.X. Zhang Y.Q Wang K. Ding
School of Electronic Science and Engineering, Nanjing University 22 Hankou Road, Nanjing, P.R.China 210093
国际会议
China Display/Asia Display 2011(2011年中国显示/亚洲显示会议)
江苏昆山
英文
652-655
2011-11-07（万方平台首次上网日期，不代表论文的发表时间）