Pulse modulation type three-dimensional image-forming method and system containing no scanning device

Abstract

The invention relates to a method and system of non-scanner impulse modulating three-space imagery. Impulse laser emits optical pulsing light testing scene; reflected light is inputted into receiver through image system and its output is connected with video camera set; the output of video camera set is connected with image handling device; one of modulating signal controller controls impulse laser or probing laser impulse; while another one controls functional light receiver set and video camera set and transmits the signal to image handling device at the same time. The gain of functional light receiver is time variable function. It uses intensity image of at least two laser impulses light with different intensity or the gains of functional receiver as different time variable function, then generates three-space imagery by computing. The range-measuring system doesn't have scan parts.

Description

technical field [0001] The invention relates to the field of three-dimensional imaging or imaging ranging, in particular to a scanner-less pulse modulation three-dimensional imaging method and system. Background technique [0002] Ranging technology With the continuous progress and development of human society and science and technology, people have higher and higher requirements for information acquisition. Two-dimensional imaging technologies are relatively mature, but they can only obtain two-dimensional image information, and the real world is a three-dimensional space, and two-dimensional images are not enough to fully express all information. Three-dimensional imaging display technology will greatly promote the development of related detection, simulation and entertainment. Among the 3D imaging systems, optical 3D imaging has the highest resolution. However, traditional optical three-dimensional imaging systems, such as traditional laser imaging radars, require mecha...

AI Technical Summary

Problems solved by technology

Two-dimensional imaging technologies are relatively mature, but they can only obtain two-dimensional image information, and the real world is a three-dimensional space, and two-dimensional images are not enough to fully express all information

Because the imaging distance of this method is relatively long, but under the condition of a CCD array with a certain pixel rate, the distance resolution (series) is inversely proportional to the spatial resolution, so the distance measurement accuracy and spatial resolution cannot be achieved at the same time.

In addition, research institutions such as the Lincoln Laboratory of the United States and the Swiss Electronics and Microtechnology Research Center are developing a scanner-free 3D imaging technology based on an integrated circuit with a high-speed optical pulse response. This method can detect a long distance, but its ranging accuracy is slightly low at present. , with a lower spatial resolution

Images