METHOD AND DEVICE FOR ENCRYPTING AND RECONSTRUCTING COMPUTER-MADE VIDEO HOLOGRAMS Russian patent published in 2009 - IPC G03H1/22 

FIELD: information technology.

SUBSTANCE: invention relates to holography. The method and device are meant for reconstructing holographic three-dimensional surveillance objects using electronically controlled pixels in a holographic matrix (3), with minimal resolution, which prevent flicker effect and cross noise, in real time mode and for both eyes simultaneously, in a large viewing area. The method exploits advantages of optical focusing device (2) to form an image of vertically coherent light, emitted by a linear light source (1) in viewing windows (8R, 8L) after modulation using pixel matrix (3). Holographic reconstruction (11) of the surveillance object is visible from viewing windows (8R, 8L). Controlled pixels are in pixel columns (15, 16), which encrypt separate holograms of the same object for both eyes (R, L) of the observer. Device (7) for dividing images with dividing elements opens corresponding pixel columns (15, 15' or 16, 16') for one eye and closes them for the other eye.

EFFECT: reconstruction of holographic three-dimensional surveillance objects.

20 cl, 4 dwg