Author Affiliations
Abstract
We propose an autostereoscopic three-dimensional (3D) projection display. The display consists of four projectors, a projection screen, and two lenticular sheets. The operation principle and calculation equations are described in detail and the parallax images are corrected by means of homography. A 50-inch autostereoscopic 3D projection display prototype is developed. The normalized luminance distributions of viewing zones from the simulation and the measurement are given. Results agree well with the designed values. The proposed prototype presents full-resolution 3D images similar to the conventional prototype based on two parallax barriers. Moreover, the proposed prototype shows considerably higher brightness and efficiency of light utilization.
110.0110 Imaging systems 110.6880 Three-dimensional image acquisition Chinese Optics Letters
2012, 10(1): 011101
Author Affiliations
Abstract
1 School of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
2 State Key Laboratory of Fundamental Science on Synthetic Vision, Sichuan University, Chengdu 610065, China
A method to reduce crosstalk in multi-view autostereoscopic three-dimensional (3D) displays based on the lenticular sheet is proposed. Correcting the luminance values of each parallax image displayed on the display screen is employed. We analyze the causes of crosstalk. We deduce the formulas of crosstalk reduction according to the relationship between crosstalk coefficients of each parallax image observed through the lenticular sheet, luminance values of each parallax image displayed on the display screen, and luminance values of each parallax image observed through the lenticular sheet at each viewing position. Experimental results verify the effectiveness of the proposed method.
自由立体显示 柱面光栅 串扰 100.0100 Image processing 100.6890 Three-dimensional image processing Chinese Optics Letters
2011, 9(2): 021001
Author Affiliations
Abstract
1 School of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
2 State Key Laboratory of Fundamental Science on Synthetic Vision, Sichuan University, Chengdu 610065, China
In three-dimensional displays, large vertical parallax in parallax images is disadvantageous to stereo vision due to the presence of visual fatigue. Based on the principle that homologous points in different parallax images correspond to the same object point, a method is proposed to eliminate the vertical parallax in multi-view parallax images. The coordinate mapping relationship between a standard parallax image and an awaiting rectification parallax image is established according to the coordinates of the image points of the rectangular calibration board vertices. Experiments are conducted, and results prove that the proposed method is reliable.
竖直视差 三维显示 多视点视差图像 100.6890 Three-dimensional image processing 150.6910 Three-dimensional sensing 330.1400 Vision - binocular and stereopsis Chinese Optics Letters
2010, 8(11): 1047
