Digital Tele-Viewer for Warped Video Rectification
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Solution Overview
Problem
Existing video systems struggle with efficiently processing and transmitting wide-angle or panoramic video images, which are distorted due to optical imaging module designs, and lack effective methods for real-time tracking and face recognition in various applications such as surveillance and security monitoring.
Innovation Solution
The implementation of digital processing techniques that include a digital tele-viewer module for transforming warped video images into rectilinear views, combined with modules for real-time tracking of persons, face recognition, and head pose estimation, using look-up tables, edge detection, Kalman filtering, and machine learning algorithms to process and analyze video signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wide-angle or panoramic optical imaging modules are used to capture video images, then the field of view and coverage area are improved, but the images become distorted and require complex digital processing to correct
Solution Approach 1:
The patent replaces mechanical/optical image correction methods with digital processing. A digital televiewer module performs perspective transformation on captured images to correct distortion, substituting computational algorithms for traditional optical correction mechanisms.
Solution Approach 2:
The patent changes the parameter space by capturing images in a distorted panoramic format and then transforming them to rectilinear format through digital processing. This allows the system to capture wide-angle views while delivering corrected images to users.
2Manufacturing precision
If digital processing is applied to transform distorted panoramic images into rectilinear views, then image quality and viewer perception are improved, but processing time and computational complexity increase
Solution Approach 1:
The patent performs perspective transformation and image rectification in advance, before the image is displayed to the user. The digital televiewer module pre-processes panoramic images into rectilinear format, so that when images are delivered to portable devices, they are already corrected and ready for immediate display.
Solution Approach 2:
The patent introduces a digital televiewer module as an intermediary between the panoramic camera and the final display device. This intermediary performs the computationally intensive transformation work, allowing the camera to capture wide-angle views and the display device to show corrected images without real-time processing delays.
3Reliability
If video signals are transmitted through a secured server with access restrictions, then security and controlled distribution are improved, but system complexity and transmission overhead increase
Solution Approach 1:
The patent creates a multi-functional system where a single secured server infrastructure handles multiple tasks: storing panoramic video content, managing user authentication, controlling access permissions, and coordinating image transformation. This universal platform reduces overall system complexity compared to having separate systems for each function.
Data Source
AI summary
Digital video imaging systems and techniques for efficiently transforming warped video images into rectilinear video images, real-time tracking of persons and objects, face recognition of persons, monitoring and tracking head pose of a person and associated perspective view of the person.