Voxel data reconstruction method for solid true three-dimensional volumetric display

Abstract

The invention discloses a voxel data reconstruction method for solid true three-dimensional volumetric display. The invention is characterized in that the method is implemented based on an FPGA (field programmable gata array) controller and an SDRAM (synchronous dynamic random access memory); the SDRAM contains a plurality of memory arrays, each memory array contains a plurality of memory rows, and each memory row contains multiple lines of memory units; by using an address mapping structure based on a memory block and a data mask DQM, a stereoscopic display image is stored in a particular area of the SDRAM, and two SDRAMs are read in turns in a ping-pong operation manner, thereby realizing the voxel data reconstruction of the stereoscopic display image. By using the method disclosed by the invention, the bandwidth of an equivalent bus is improved, the overall operating frequency of a system is reduced, the design difficulty of the system is reduced, the design of address variables is simplified, and the flexibility of system design is improved.

Description

technical field [0001] The invention belongs to the technical field of digital image processing, and relates to a voxel data reconstruction method for solid-state true three-dimensional volume display. Background technique [0002] Solid-state true three-dimensional volumetric display is to project multi-layer sliced ​​images of three-dimensional objects with different depth information onto liquid crystal light valves of corresponding depths sequentially through a high-speed projection device, thereby generating true three-dimensional images with real physical depth in three-dimensional space. Compared with other types of 3D display methods, solid-state true 3D volumetric display has the advantages of strong sense of reality, large amount of displayed information, multi-angle viewing, and no visual fatigue. It is the mainstream development direction of 3D stereoscopic display. [0003] The image source in a solid-state true 3D volumetric display usually comes from a compute...

AI Technical Summary

Problems solved by technology

The existing technology generally reads and writes voxel by voxel, and the bandwidth is low, so the reading and writing speed of the memory must be doubled, so the overall clock frequency of the system will be greatly increased, making the system hardware and software design difficult, the timing tight, and the reliability difficult to control , which increases the system production cost; and, because there is no specially optimized address mapping structure, the address variable design is complicated and the flexibility is poor

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