Multi-Camera Device Composite Viewport Tracking
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Solution Overview
Problem
It is challenging to provide good framing for both front and rear cameras on a mobile communication device, especially when both cameras are used simultaneously, as the inter-relationship between their framing can be difficult to control, particularly when objects of interest are moving.
Innovation Solution
A method and apparatus for a multi-camera device that involves obtaining input data from both cameras, defining regions of interest, tracking these regions, and generating output data to create a combined view, allowing for side-by-side or stacked presentation of the camera views, with features like alerting when objects move out of view and resuming tracking when they re-enter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If both front and rear cameras are used simultaneously, then more comprehensive coverage is achieved, but framing control becomes difficult
Solution Approach 1:
The patent combines the viewports of multiple cameras into a single composite display, merging their individual fields of view into one unified interface. This allows users to see all camera views simultaneously in one screen real estate, making framing control easier while maintaining comprehensive coverage.
Solution Approach 2:
The composite display is segmented into multiple independent viewport regions, each corresponding to a different camera. Users can independently control and frame objects in each camera's viewport while viewing all cameras simultaneously, resolving the contradiction between comprehensive coverage and framing control.
2Ease of operation
If tracking is implemented for moving objects, then object following is improved, but system complexity increases
Solution Approach 1:
The system automatically tracks and follows objects of interest without requiring manual intervention. The tracking mechanism self-adjusts the camera views to keep objects centered, providing intelligent object following while keeping the user interface simple and the system manageable.
Solution Approach 2:
The system continuously monitors object positions across camera views and provides feedback by automatically adjusting the framing to keep tracked objects centered. This closed-loop feedback simplifies the user experience while managing the complexity of multi-camera coordination through automated response.
3Ease of operation
If viewport is narrowed for better framing, then object focus is improved, but field of view is reduced
Solution Approach 1:
Instead of choosing between narrow viewport for focus or wide field of view, the patent adds a dimensional solution by displaying multiple camera viewports simultaneously in a composite arrangement. This allows the system to maintain both focused framing in individual viewports and comprehensive coverage across all cameras at the same time.
Data Source
AI summary
A method and apparatus is described comprising: obtaining first input data from a first camera of a multi-camera device; obtaining second input data from a second camera of the multi-camera device (wherein the second camera is orientated in a different direction to the first camera); defining a first region or object of interest for the first camera and/or a second region or object of interest for the second camera; tracking the first region or object of interest and/or the second region or object of interest; generating a first output data based on the first input data; generating a second output data based on the second input data; and generating a multi-camera output that includes the first and second output data.