Three-dimensional imaging method and device utilizing planar lightwave circuit

Abstract

The invention discloses a three-dimensional imaging method and a device utilizing a planar lightwave circuit. The three-dimensional imaging method includes that coherent light emitted from coherent light source is converted into a two dimensional point light source array; the position of every point light source in the two dimensional point light source array is randomly distributed; three-dimensional images are discretized into a large amount of vexel; the vexel is divided into a plurality of groups from high to low according to the brightness; a phase regulating amplitude of the point light source is calculated according to the distance between every point light source and every vexel of every group to enable the lightwave from every point light source to be in the same phase when reaches the vexel; every point light source is accumulated as a complex amplitude regulation amplitude for generating every vexel; and an amplitude regulator and a phase regulator of every point light source are driven to generate every group of vexel based on constructive interference. The imaging device is formed by coherent light source, the planar lightwave circuit, a conductive glass front panel and a back driving circuit. The three-dimensional imaging method and the device utilizing the planar lightwave circuit are capable of being widely applied to the fields of three-dimensional display of a computer and a television, three-dimensional human-machine exchange, robot vision and the like.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional imaging, and in particular relates to a three-dimensional imaging method and device using a planar optical waveguide circuit. Background technique [0002] Three-dimensional display can be divided into pseudo three-dimensional display and true three-dimensional display. The former is a stereoscopic display based on binocular parallax, which presents two pictures with different viewing angles to the left and right eyes of the observer, making them produce stereoscopic illusions, and long-term viewing is likely to cause fatigue. The latter directly forms a real three-dimensional image in the air, and the observer does not need to wear any auxiliary glasses, making viewing more comfortable and natural. [0003] True three-dimensional stereoscopic display can be realized by non-coherent methods, such as integrated imaging technology and volume imaging technology, or by coherent methods, suc...

AI Technical Summary

Problems solved by technology

However, for large objects, the holographic interference fringes are on the sub-micron scale, which is far smaller than the pixel size of flat-panel displays; at the same time, massive interference fringe data brings great difficulties to real-time digital acquisition, processing, storage, transmission and display

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