Device and method for implementing stereo imaging by overall view ring belt imaging lens

Abstract

The invention discloses a device using panoramic view zone imaging lenses to realize stereoscopic imaging and a method thereof. The optical line emitted by an object point is formed on the image surface through the first panoramic view zone imaging lens, and the formed image is a first zone; the other optical line emitted by the object point is also formed on the same image surface through the second panoramic view zone imaging lens, and the formed image is a second zone; by changing the curvatures of all the surfaces in the first panoramic view zone imaging lens and all the surfaces in the second panoramic view zone imaging lens, the outside diameter of a first zone is smaller than the inside diameter of a second zone. By utilizing two panoramic view ring-shaped lenses positioned on the same optical axis, the invention forms the image of the same object point in the zone object space on the two noverlapping image points positioned on the same image surface; as the two images points obtain the information of the same object point from different visual angles, the steric information of the object point can be obtained, thus only one optical system can be used for realizing the stereoscopic imaging of panoramic view zone space.

Description

technical field [0001] The invention relates to a lens imaging device and a method thereof, in particular to a stereoscopic imaging device and a method thereof utilizing a panoramic annular band imaging lens. Background technique [0002] Traditional panoramic stereoscopic imaging generally requires two small field of view imaging lenses to be aimed at the same scene to obtain stereoscopic information of the small field of view object, and then rotate the two imaging lenses by 360° at the same time to achieve panoramic stereoscopic imaging. This method requires moving parts and software stitching of stereoscopic images, which has poor reliability; at the same time, it cannot realize instantaneous panoramic stereoscopic imaging. [0003] The panoramic annular imaging technology based on the principle of planar cylindrical projection is a new imaging technology that is completely different from the traditional central projection principle. It can image the surrounding 360° ann...

AI Technical Summary

Problems solved by technology

The advantage of this method is that there are no moving parts, and panoramic images can be obtained in real time. However, due to the phenomenon that the 360° annular scene is partially blocked by another panoramic imaging system, it is impossible to obtain complete panoramic stereoscopic imaging information. Two panoramic imaging systems are used simultaneously. system, increasing the weight and complexity of the system

Some foreign and domestic scholars have also proposed a method of using two hyperboloid catadioptric cameras to realize panoramic stereoscopic imaging. Instead of placing them side by side, two panoramic cameras are placed coaxially up and down. However, due to the need for two optical systems and two detectors, Not only is the structure complex and heavy, but there are also image matching errors

[0006] Scholars such as South Korea and Canada have completed the development of a panoramic stereoscopic imaging optical system by using two high-order aspheric mirrors, and proposed an effective solution for realizing panoramic stereoscopic imaging with only one optical system. However, since the optical system is based on a total reflection structure, The mirror size of the system is too large relative to the focal length of the optical system, and the system structure is limited to thin beam imaging, it is difficult to improve the resolution of the optical system, especially in the infrared band, it is difficult to achieve a small F number (that is, a large relative aperture, such as D / F=1) Panoramic Stereoscopic Imaging Optical System That Meets Infrared Detector Requirements

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