Panoramic Conference Terminal Image Stitching
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Solution Overview
Problem
Existing video conference systems are limited in capturing comprehensive conference scenes, failing to adequately acquire and display images and voices of all participants, leading to incomplete information and difficulty in following the conference process.
Innovation Solution
A conference terminal and system equipped with multiple image and voice acquisition devices, processing modules for stitching and correcting images and voices, and modules for person recognition and tagging, enabling the creation of a seamless panoramic conference image and synchronized speech playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single camera is used to acquire images, then the device complexity is reduced, but the completeness of conference scene acquisition deteriorates
Solution Approach 1:
The patent divides the conference scene acquisition into multiple segments by deploying multiple image acquisition devices (cameras) at different positions around the conference table. Each camera captures a specific portion of the conference scene, and the image processing device stitches these segmented images together to form a complete panoramic view, thereby solving the contradiction between device simplicity and scene completeness.
Solution Approach 2:
The patent transitions from a single-point image acquisition (one camera) to a multi-dimensional acquisition system by arranging multiple cameras in spatial distribution around the conference table. This spatial dimensionality change enables comprehensive coverage of all participants and conference materials from different angles, resolving the information completeness issue.
2Loss of information
If multiple image acquisition devices are deployed to capture all participants, then the completeness of conference scene acquisition is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple individual image acquisition devices into a unified conference terminal system. The image processing device integrates the functions of multiple cameras, performing automatic image stitching, calibration, and synthesis to produce a single comprehensive panoramic output. This merging approach maintains scene completeness while managing system complexity through functional integration.
Solution Approach 2:
The image processing device is designed with multi-functionality, serving as both the processor for multiple input cameras and the generator of the final panoramic output. It performs multiple tasks including image reception, geometric correction, stitching, and synthesis, thereby reducing the need for separate dedicated components for each function and managing overall system complexity.
3Loss of information
If multiple partial conference images are processed into one integral image, then the completeness of conference information is improved, but the image processing complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-calculating and storing calibration parameters for each image acquisition device during system setup. These pre-computed parameters (including transformation matrices and geometric corrections) are reused during actual conference operations, significantly reducing the real-time processing complexity while maintaining the ability to stitch multiple images into a complete panoramic view.
4Measurement precision
If person recognition and tagging modules are added to identify speakers, then the accuracy of speaker identification is improved, but the device complexity and processing time increase
Solution Approach 1:
The patent introduces an intermediary approach by first performing geometric correction and stitching of images before applying person recognition and tagging. This sequential processing allows the system to work with stabilized, properly aligned images, improving the accuracy of subsequent person identification while managing computational complexity through staged processing rather than simultaneous operations.
Data Source
AI summary
Provided are a conference terminal and a conference system are proposed for providing integral conference image in video conference scenes. The conference terminal includes: a plurality of image acquisition devices, each of the image acquisition devices being configured to acquire a partial conference image; and an image processing device configured to receive a plurality of partial conference images from the plurality of image acquisition devices, convert the plurality of partial conference images into one integral conference image, and output the integral conference image.