Image output control method and optical fiber scanning imaging system

Abstract

The invention discloses an image output control method and an optical fiber scanning imaging system. A marking signal is stored in the optical fiber scanning imaging system, the marking signal is used for marking the scanning direction of an optical fiber in a three-dimensional space, and the method comprises the following steps: starting to obtain an image output starting signal, and reading image data of a current display image from an image storage unit according to a pixel point scanning sequence corresponding to the marking signal; writing the image data of a current display image into a first in first out (FIFO) memory according to the pixel point scanning sequence; and controlling a light source to sequentially output light corresponding to each pixel point in the current display image according to the image data in the FIFO. The image output control method in the embodiment of the invention is completely matched with an optical fiber scanning motion trail, so that the space utilization rate of optical fiber scanning is maximized.

Description

technical field [0001] The invention relates to the field of projection display, in particular to an image output control method and an optical fiber scanning imaging system. Background technique [0002] The imaging principle of scanning projection technology is to modulate the light corresponding to each pixel of the image to be displayed through the light source, and then drive the scanning fiber through the scanner or scan through MEMS (English full name: Microelectro Mechanical Systems, Chinese name: Micro Electro Mechanical System) The movement of the mirror scans and outputs the light corresponding to each pixel, so that the light corresponding to each pixel of the image to be displayed is projected onto the projection screen one by one to form a projection picture. [0003] Taking the fiber optic scanning imaging system as an example, the fiber optic scanning imaging system generally includes a fiber optic scanner and a light source. Drive the optical fiber to scan ...

AI Technical Summary

Problems solved by technology

[0005] When this display method is applied to an optical fiber scanning imaging system, take the scanning mode of the optical fiber scanning system as raster scanning as an example, because the optical fiber can only display one line of images when scanning from left to right, but cannot scan from right to left. Display images, and the optical fiber can only display one field / frame image when scanning from top to bottom, but cannot display images when scanning from bottom to top, which will cause vertical space utilization to be halved and display frame rate to be halved; and for For Lissajous scanning, its scanning trajectory is more complicated than that of raster scanning, and the existing image caching method is completely inapplicable

It can be seen that the existing image buffering method is not suitable for the optical fiber scanning imaging system. For the optical fiber scanning imaging system, a new image output control method is urgently needed to improve the space utilization and display frame rate of the optical fiber scanning imaging system.

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