此外，该过程仅需要一张全息图，而且不需要对全息图做预前和后期处理。
Furthermore all this is accomplished from a single hologram with no additional pre or post proc-essing required.
单独再现每一张全息图时无法观察到原物体信息，而将两全息图对准合在一起时，则可在计算全息图的观察面上得到原来的物体信息。
When single CGH is reconstructed, no information will be observed, while two alignment combined phase-only CGHs are reconstructed, the recorded information will be read out on the image plane.
这就像在蛇的脑袋中有一张热能全息图，精确得足以让毒蛇定位它的猎物。
It forms an image of the thermal environment in the brain. And this image is accurate enough for a snake to bite its prey.
用单色激光同时再现出记录的三种颜色信息的光强分布，并将它们记录在同一张全息片上作成彩色全息图。
He-Ne laser is used to reconstruct the light intensity distribution of the three colour informations and record a colour hologram on a holographic plate.
用一张计算全息图可产生锥面波，锥面波衍射图样的中心在空间是连续的，可作为直线基准。
A cone wave can be generated by a CGH. The centre of the diffraction pattern of the cone wave is continuous in space and can be used as an alignment straight lint.
用一张计算全息图可产生锥面波，锥面波衍射图样的中心在空间是连续的，可作为直线基准。
A cone wave can be generated by a CGH. The centre of the diffraction pattern of the cone wave is continuous in space and can be used as an alignment straight lint.
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