Panoramic Video Composition Apparatus for Double Image Suppression
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Solution Overview
Problem
When objects move across the overlap region between cameras in panoramic video composition, the display coordinates change significantly, leading to deteriorated image quality due to double images and defects.
Innovation Solution
A panoramic video composition apparatus that generates an afterimage by overlapping moving regions from frame images, calculates feature points, and uses transformation parameters to distort frames, ensuring accurate coupling of videos even when objects traverse the overlap region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If videos from different angles of view are coupled to create panoramic video, then wide-angle panoramic video is achieved, but double images and defects occur when objects traverse the overlap region
Solution Approach 1:
The system performs preliminary detection of objects traversing the overlap region and pre-calculates display coordinate changes before coupling. By anticipating the movement and preparing transformation parameters in advance, the system prevents double images and defects from occurring during the actual video coupling process.
Solution Approach 2:
The system dynamically adjusts transformation parameters based on detected object movement. When an object is detected to traverse the overlap region, the system modifies display coordinates and coupling parameters to maintain consistent object representation across the joined video boundaries, thereby preventing image quality deterioration.
2Measurement precision
If feature point matching is used to couple frame images, then accurate alignment is achieved, but display coordinates vary significantly when objects move across overlap region
Solution Approach 1:
The system implements feedback by continuously monitoring object positions in the overlap region and adjusting transformation parameters accordingly. When feature point matching indicates potential coordinate variations, the system uses object movement information to correct and refine the coupling parameters, ensuring consistent display coordinates across frame transitions.
Data Source
AI summary
Provided is a panoramic video composition apparatus that suppresses a double image or a defect of an object even when the object moves to traverse an overlap region between cameras. In a panoramic video composition apparatus that composes a panoramic video by coupling a plurality of videos, the panoramic video composition apparatus includes an afterimage generation unit 10 configured to acquire a background image as a background and a reference image as a reference of the panoramic video from frame images constituting a video for each of videos from different angles of view, extract moving regions in which an object moves from differences between the background image and the frame images, and generate an afterimage by overlapping the extracted moving regions in order of the frame images, a feature point calculation unit 20 configured to obtain a plurality of feature points from each of the reference image and the afterimage, generate a set of feature points by adding the feature points, and calculate a feature value of each feature point, and a transformation parameter generation unit 30 configured to search for feature points of which feature values match each other by comparing the feature points of the set of feature points before and after the frame image, and generate a first transformation parameter indicating a degree of distorting the frame image from differences between coordinates of the feature points.