(EN)
The object is to largely eliminate the errors which arise in the reconstruction of a hologram, calculated point by point, as a result of the encoding of said hologram into pixels of finite extent. The invention achieves the object by means of a method in which the common wavefront calculated from the object sectional planes (6, 7, 8) is multiplied by the inverse transform of the pixel shape and pixel transparency in the viewer's window (11) before the wavefront modified by the multiplication is transformed to the hologram plane (14) and encoded as an amplitude and/or phase distribution of the hologram in the pixels of the light modulator (9, 91). This method is implemented in a corresponding apparatus which contains an additional memory unit for providing a Fourier transform or its inverse Fourier transform and also a multiplication unit.
(ZH)
本发明的目的是很大程度上消除全息图重建中逐点计算产生的错误，该错误是由上述全息图编码到有限范围的像素引起的。本发明的目的通过以下方法实现：将由目标截面(6、7、8)计算得到的普通波前，在被乘法运算修正的波前变换成全息面(14)并且以全息图的振幅分布以及/或者相位分布的形式在光调制器(9，91)的像素中编码之前，与像素形状和像素透明度的逆变换相乘。本方法在包含用于提供傅立叶变换或者傅立叶逆变换的附加记忆单元以及乘法运算单元的相应装置中实现。
