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实时立体视觉系统中的深度映射

DOI: 10.11834/jig.20150308

Keywords: 立体显示,感知深度,深度映射,视觉疲劳

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Abstract:

目的为减少立体图像中由于水平视差过大引起的视觉疲劳。针对实时渲染的立体视觉系统,给出了一种非均匀深度压缩方法。方法该方法在单一相机空间内,通过不同的投影变换矩阵生成双眼图像,水平视差由投影变换来控制。为减少深度压缩造成的模型变形而带来的瑕疵,将不同深度区域内物体施以不同的压缩比例;将相机轴距表示为深度的连续函数,通过相机轴距推导出在单一相机空间内获取双眼图像的坐标变换,将深度压缩转换为模型的坐标变换,从而保证压缩比例的连续变化。结果实验结果表明,该方法能有效提高立体图像的质量。结论该方法简单、高效,可应用于游戏、虚拟现实等实时立体视觉系统。

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