Wide-Angle Webcam Image Display Method for Video Conferencing
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Solution Overview
Problem
Existing video conferencing software cannot effectively display wide-angle panoramic images from webcams with a horizontal angular field of view greater than or equal to 180 degrees, resulting in small characters that are difficult to recognize, as they are limited to aspect ratios of 4:3 or 16:9.
Innovation Solution
An image display method that frames multiple regions of interest (ROIs) within the panoramic image, selects a suitable frame layout based on ROI attributes and positions, and inserts these into corresponding windows to create a composite frame, allowing for user preferences and prioritization of key elements, thereby enhancing scene availability and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wide-angle panoramic images with aspect ratio greater than or equal to 2:1 are transmitted to video conferencing software, then the whole content can be captured, but the characters in the picture become very small and cannot be easily recognized
Solution Approach 1:
The panoramic image is divided into multiple regions of interest (ROIs) based on detected objects, activities, or semantic segments. Each ROI is then selectively displayed in a composite frame layout, allowing important content to be magnified and displayed clearly while maintaining comprehensive scene coverage through the segmented approach.
2Adaptability or versatility
If the panoramic image aspect ratio is different from the video software aspect ratio (4:3 or 16:9), then the wide-angle content can be preserved, but the display requires black blocks, cropping, or deformation processing
Solution Approach 1:
The system dynamically selects from multiple predetermined frame layouts based on the number, positions, and attributes of detected ROIs. This dynamic adaptation allows the display to flexibly accommodate different aspect ratios and scene compositions without requiring static cropping, black blocking, or deformation processing, thereby simplifying the display pipeline while maintaining versatility.
3Adaptability or versatility
If multiple ROIs are selected and combined from panoramic image, then scene availability and picture aesthetics are improved, but the frame layout selection and insertion process becomes more complex
Solution Approach 1:
The system changes parameters such as the number of ROIs, their positions, and attributes to dynamically select from multiple predetermined frame layouts. This parameter-based approach allows flexible scene composition while managing complexity through predefined layout templates that adapt to different parameter configurations.
Data Source
AI summary
An image display method applicable to a video conferencing system with a wide-angle webcam is disclosed. The wide-angle webcam is used to capture a panoramic image having an aspect ratio greater than or equal to 2:1. The method includes: framing multiple regions of interest (ROIs) according to the panoramic image, each ROI having at least one of attributes; selecting one from predetermined frame layouts as an output frame layout according to whether to insert a portion of the panoramic image and attributes, positions and the number of the ROIs; and inserting at least one of the portion of the panoramic image and the ROIs into corresponding windows in the output frame layout to form a composite frame according to the attributes of the ROIs.