Dual-PTZ Camera System for Simultaneous Landscape and Portrait Capture
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Solution Overview
Problem
Existing mobile device video and image display technologies automatically adjust orientation, leading to image quality loss due to truncation or cropping, failing to fully utilize the screen in both portrait and landscape modes.
Innovation Solution
A dual-camera system with perpendicular PTZ cameras captures simultaneous rectangular landscape and portrait images/video feeds, allowing independent image control and optimization for each orientation, using a single tripod to minimize spatial separation and maintain a unified perspective.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single camera is used to capture images for both portrait and landscape modes, then device complexity is reduced, but image quality is lost due to truncation or cropping
Solution Approach 1:
The patent divides the imaging function into two separate cameras: one dedicated to portrait mode and another dedicated to landscape mode. Each camera is optimized for its specific orientation, capturing full-resolution images without the need for truncation or cropping. This segmentation resolves the contradiction by sacrificing device simplicity to preserve image quality.
2Adaptability or versatility
If auto-orientation is used to adapt images to device orientation, then adaptability is improved, but image quality deteriorates due to loss of content
Solution Approach 1:
The patent applies preliminary action by capturing the complete scene in both portrait and landscape orientations simultaneously using two dedicated cameras before the device needs to display the content. This ensures that all image content is preserved in advance, and the device can then adapt to any orientation without losing information, as the appropriate full-resolution feed is already available.
3Ease of operation
If a single camera is used for both orientations, then ease of operation is improved, but the full use of available screen is not achieved
Solution Approach 1:
The patent applies local quality by providing different optimized image feeds for different display orientations. The portrait camera captures images optimized for vertical screen display, while the landscape camera captures images optimized for horizontal screen display. This ensures that each orientation utilizes the full screen area with appropriate framing and resolution, resolving the contradiction between operational simplicity and screen utilization.
Data Source
AI summary
A system and method for providing landscape (horizontal) and portrait (vertical) oriented images of a common scene on separate feeds with independent image controls includes a movable horizontal camera configured to provide a horizontal image on a horizontal image feed, a movable vertical camera configured to provide a vertical image on a vertical image feed, the horizontal and vertical cameras configured to be aligned along a camera axis and mounted to a common support, the horizontal and vertical cameras configured to view the common scene and to provide separate horizontal and vertical image feeds simultaneously, the cameras being independently controlled such that a given camera is moved when a tracked subject exceeds a control range threshold for that camera image, independent of the subject location in the other camera image. In some embodiments, a single high resolution image may be used with independently-controlled horizontal and vertical extracted images.