A large depth of field digital image stereovision endoscope system

By correcting lens distortion and installation errors of the binocular camera in the 3D endoscope through analytical calculation methods, the problems of flattened depth of field and dizziness in stereoscopic images were solved, enabling comfortable viewing of large depth-of-field stereoscopic images and reducing manufacturing and maintenance costs.

CN122284083APending Publication Date: 2026-06-26CHENGDU HONGZHAO TECH CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU HONGZHAO TECH CO LTD
Filing Date
2026-03-27
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing 3D electronic endoscopes suffer from problems such as flattened depth of field in stereoscopic images and dizziness/uncomfortable viewing due to inconsistencies in the manufacturing and installation of binocular cameras.

Method used

An analytical calculation method is used to correct lens distortion, focal length, and installation posture errors of a binocular miniature camera. Through image acquisition and correction calculation module, image projection and posture correction calculation module, and image rearrangement and output calculation module, parameter consistency and posture correction are achieved, thereby expanding the depth of field of stereo images.

Benefits of technology

It improves the depth of field and viewing comfort of stereoscopic images, reduces the difficulty of precision manufacturing and maintenance of endoscopic equipment, and lowers manufacturing costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122284083A_ABST
    Figure CN122284083A_ABST
Patent Text Reader

Abstract

This invention provides a large depth-of-field digital imaging stereoscopic endoscope system, including an endoscope catheter, a binocular digital imaging miniature stereoscopic camera, a control and calculation subsystem, and a stereoscopic image electronic display. The control and calculation subsystem includes: an image acquisition and correction calculation module, which performs manufacturing parameter consistency calculations on the acquired raw binocular digital image data to obtain a parameter-consistent image; an image projection and posture correction calculation module, which corrects the phase angle tilt projection of the left and right images and the installation posture error to obtain a corrected image; and an image rearrangement and image output calculation module, which rearranges the corrected image to obtain a correctly projected image, and then outputs the final stereoscopic image. This invention solves the problems of flattened depth of field and viewing dizziness associated with stereoscopic images, improves the technical performance of the equipment, and lowers the technical threshold for the precision manufacturing and maintenance of 3D electronic endoscopes.
Need to check novelty before this filing date? Find Prior Art