Display Mount Assembly for Repeatable 3D Camera Alignment
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Solution Overview
Problem
Existing 3D video communication systems face issues with diminished video quality due to inconsistent camera positions caused by variations in display mounts, which are not exactly constrained, leading to misalignment of video images during re-mounting or environmental changes.
Innovation Solution
A mounting system with precise constraints, including ring grooved pins and contact pins, a fixed plate assembly, and a pivoting plate assembly, that ensures repeatable positioning and compensatory motion of displays, maintaining camera positions and reducing thermal distortions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a display is mounted using conventional mounting methods, then the display can be installed, but the camera positions become inconsistent leading to diminished video quality
Solution Approach 1:
The mounting system is divided into separate functional components: a fixed plate assembly that provides stable mounting to the structure, and a pivoting plate assembly that allows compensatory motion. This segmentation enables each component to perform its specific function optimally - the fixed plate ensures structural stability while the pivoting plate maintains camera alignment despite thermal expansions or mounting variations.
Solution Approach 2:
The system allows for parameter changes in the mounting configuration through the pivoting plate assembly, which can rotate to accommodate variations in thermal expansion, mounting precision, or environmental changes. This parameter adjustment capability maintains optimal camera positions despite changes in the overall system state.
2Stability of the object's composition
If the display mount is rigidly fixed, then the display position is stable, but thermal distortions and environmental changes cause misalignment
Solution Approach 1:
The mounting system transitions from a purely static rigid connection to a dynamic system where the pivoting plate assembly can rotate to accommodate changes. This dynamic capability allows the system to adapt to thermal expansions, environmental changes, or mounting variations while maintaining stable camera positions relative to the display.
Solution Approach 2:
The pivoting plate assembly acts as an intermediary between the fixed structural mounting and the display/camera assembly. It mediates the transmission of forces and motions, allowing compensatory rotation to absorb thermal distortions and environmental changes while maintaining the stability needed for accurate video capture.
3Ease of manufacture
If conventional mounting plates are used, then installation is simple, but recalibration is needed after re-mounting
Solution Approach 1:
The mounting system is pre-configured with the pivoting plate assembly and ring grooved pins in specific positions that enable automatic compensation. This preliminary arrangement of components ensures that when the display is mounted or re-mounted, the system is already configured to maintain proper camera alignment without requiring subsequent recalibration.
Solution Approach 2:
The pivoting plate assembly performs self-alignment through its ability to rotate and accommodate variations in mounting position or thermal expansion. The system serves itself by automatically compensating for misalignments through the mechanical degrees of freedom provided by the pivoting mechanism, eliminating the need for external recalibration operations.
Data Source
AI summary
Systems and devices are disclosed for improving image quality in a video communication system. Improvements can be realized through the use of a display mount that provides for repeatable positioning and loading. Cameras can be mounted around a perimeter of the display, so that the principles described apply to a camera array structure as well as the display itself. The display mount can include an upper fixed mount that restricts translational motion and a lower flexible mount that permits rotation about a vertical axis to compensate for variations in loading. Various implementations of the upper mount are described. The upper mount can be equipped with a roll adjustment mechanism.