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    • 6. 发明申请
    • SPECIAL EFFECT DEVICE, IMAGE PROCESSING METHOD, AND SHADOW GENERATING METHOD
    • 特殊效果器件,图像处理方法和阴影生成方法
    • WO1997018667A1
    • 1997-05-22
    • PCT/JP1996003346
    • 1996-11-14
    • SONY CORPORATIONMINAMI, NobuyukiTAKASHIMA, Akihiro
    • SONY CORPORATION
    • H04N05/262
    • H04N5/262G06T15/60H04N5/2628
    • Virtual three-dimensional object video signals V1 are generated by performing three-dimensional image conversion of source video signals, and two-dimensional object video signals V2 for visually representing the three-dimensional image conversion are generated by projecting the signals V1 upon an X-Y plane. Then three-dimensional shadow signals V3 and V5 are generated by projecting the signals V1 subjected to the three-dimensional image conversion upon a shadow plane, and two-dimensional shadow signals V4 and V6 corresponding to the signals V2 are generated by projecting the signals V3 and V5 upon the X-Y plane. Thus, the shadow signals with respect to the object video signals subjected to the three-dimensional image conversion can be generated through arithmetic operation.
    • 通过进行源视频信号的三维图像转换来生成虚拟三维对象视频信号V1,并且通过将信号V1投影到XY平面上来生成用于视觉表示三维图像转换的二维对象视频信号V2 。 然后,通过将经受三维图像转换的信号V1投影到阴影平面上来生成三维阴影信号V3和V5,并且通过投影信号V3来生成与信号V2相对应的二维阴影信号V4和V6 和在XY平面上的V5。 因此,可以通过算术运算产生相对于经受三维图像转换的对象视频信号的阴影信号。