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发明授权
CN100580408C 基于柱镜光栅LCD自由立体显示设备的通用光栅参数测量方法 失效 - 权利终止

基于柱镜光栅LCD自由立体显示设备的通用光栅参数测量方法
摘要：
本发明公开了一种基于柱镜光栅LCD自由立体显示设备的通用光栅参数测量方法。包括以下步骤：1)基于全黑全白RGB图像，估测柱镜光栅的实际倾斜角α值；2)基于全黑全白RGB图像，估测柱镜光栅的实际线数LPI值；3)基于实际场景多视点测试图像，微调柱镜光栅的实际倾斜角α值和实际线数LPI值，使其与柱镜光栅完全匹配。本发明与现有的光栅参数测量方法相比，具有以下优点：一是普适性高，适用于具有任意线数LPI值和任意倾斜角α值的柱镜光栅；二是简单方便，不需要打印测试图片，只要通过基于柱镜光栅的LCD自由立体显示设备进行观察，就能精确测量光栅参数；三是精度高，测量过程结合实际场景多视点测试图像，使测量得到的光栅参数更加精确。
摘要（英）：

The present invention discloses a method for measuring the parameter of the universal raster based on LCD free stereo display device of cylindrical raster. The method comprises the following steps: 1) estimating an actual slope angle alpha value of the cylindrical raster based on the total-black and total-white RGB image; 2) estimating the actual line number LPI value of the cylindrical raster based on the total-black and total-white RGB image; and 3) testing the image at multiple viewing points based on the actual scenery, and fine-adjusting the actual slope angle alpha value and actual line number LPI value of the cylindrical raster. Compared with the existing method for measuring the parameter of raster, the method of the invention has the following advantages: firstly high universality for the cylindrical raster with random line number LPI value and random slope angle alpha value; secondly simplicity and convenience, wherein the test picture is not required to be printed, and the parameter of raster can be accurately measured by observing through the LCD free stereo display device of cylindrical raster; and thirdly high precision, the measuring process is combined with actual scenery for testing image with multiple viewing points to lead to more accurate raster parameter which is obtained by measuring.

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