Panoramic Imaging Without Stitching Using Rotating Camera Offset
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Solution Overview
Problem
Existing panoramic image stitching techniques suffer from parallax errors and temporal errors, leading to computationally expensive processing and visually distracting artefacts, while also limiting depth perception and immersion in the viewing experience.
Innovation Solution
A system and method for capturing and displaying panoramic images using a camera unit rotated about an axis of rotation with a fixed offset to a no-parallax point, acquiring a sequence of image frames without stitching, and processing them for display to provide motion parallax depth perception without parallax errors, allowing for a more immersive viewing experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If image stitching is used to create panoramic images, then the field of view is expanded, but parallax errors and temporal errors occur leading to visible artefacts
Solution Approach 1:
The panoramic image is divided into multiple separately captured frames that are displayed individually rather than stitched together. Each frame is captured from a slightly different position, and the system manages multiple discrete image segments without combining them, thereby avoiding parallax errors while maintaining expanded field of view through sequential or simultaneous display of multiple frames.
2Manufacturing precision
If processing software is used to compensate for parallax errors in stitched panoramas, then alignment accuracy is improved, but computational expense increases
Solution Approach 1:
The patent extracts and eliminates the image stitching process entirely from the panoramic imaging system. By removing the stitching operation, the need for computationally expensive parallax compensation algorithms is eliminated, while the system achieves comparable or superior alignment accuracy through alternative means such as capturing frames from a rotating platform at precisely controlled angular intervals.
3Area of stationary object
If multiple cameras are used to capture panoramic images, then the field of view is expanded, but device complexity increases
Solution Approach 1:
The patent employs a dynamic single-camera system mounted on a rotating platform that captures multiple frames from different angular positions. This dynamic approach replaces static multi-camera arrangements, achieving the same expanded field of view with a single movable camera unit, thereby reducing device complexity while maintaining panoramic coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution minimizes computational expense and eliminates parallax errors, enhancing depth perception and immersion by allowing objects to appear as they change relative position at different rates based on distance from the viewer, creating a more realistic panoramic experience.
Implementation Method 1
A system and method for capturing and displaying panoramic images using a camera unit rotated about an axis of rotation with a fixed offset to a no-parallax point, acquiring a sequence of image frames without stitching, and processing them for display to provide motion parallax depth perception without parallax errors
Data Source
AI summary
A system for acquiring a sequence of image frames for display having depth perception through motion parallax includes a base unit, a stage unit, and a camera unit. The stage unit is disposed over the base unit and is configured to rotate, with respect to the base unit, about an axis of rotation, and is configured to hold the camera element thereon at a predetermined offset, as measured from the axis of rotation to a no-parallax point or least-parallax point of the camera element. The camera element is configured to acquire a sequence of image frames, as it is rotated about the axis of rotation by the stage unit and is kept at the predetermined offset, and is configured to acquire the sequence of image frames during the rotation. The predetermined offset is a positive distance value.