3D Depth Image Gesture Control for Visual Aid Focus
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Solution Overview
Problem
Remote participants in online meetings or presentations often struggle to follow the presenter's focus on visual aids, as traditional desktop sharing technologies do not effectively convey the presenter's gestures, leading to increased conference times and distractions.
Innovation Solution
A system that generates a three-dimensional depth image of the environment, allowing it to detect user gestures and execute corresponding controller operations for wireless control of visual aids, such as changing slides or highlighting specific areas, and transmit these actions to remote devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional desktop sharing technologies are used, then remote participants can view presentation slides, but they cannot see the presenter's focus area when using laser pointer or finger pointing
Solution Approach 1:
The patent creates a virtual model of the presenter's hand and laser pointer in the 3D environment, which copies and represents the physical gestures. This virtual copy is then tracked and transmitted to remote participants, allowing them to see the focus area without requiring complex direct transmission of the physical gesture data.
Solution Approach 2:
The patent introduces a 3D environment and virtual objects as an intermediary between the presenter's physical gestures and the remote participants' visual experience. The hand tracking system and virtual hand model act as mediators that translate physical movements into visible indicators in the shared virtual space.
2Loss of information
If presenter verbally tells remote participants the location on slide, then participants can focus on the area, but conference time increases and interruptions occur
Solution Approach 1:
The system provides real-time visual feedback to remote participants by displaying the tracked hand position and laser pointer location directly on the presentation slides in the shared 3D environment. This continuous feedback eliminates the need for verbal interruptions and allows participants to independently follow the presenter's focus area.
Solution Approach 2:
The hand tracking system continuously monitors and prepares the gesture data in advance, so that when the presenter makes a gesture, the information is already captured and ready for immediate transmission to remote participants, eliminating delays and verbal communication needs.
3Ease of operation
If presenter uses laser pointer or finger pointing to emphasize area, then presenter can focus on content delivery, but remote participants cannot see the focus area
Solution Approach 1:
The patent replaces the mechanical line-of-sight requirement with an optical/electronic tracking system using cameras and computer vision algorithms. This substitution allows the presenter to use natural gestures without requiring remote participants to have direct visual access to the physical gestures, transmitting the gesture information digitally instead of mechanically through line-of-sight.
Data Source
AI summary
A system for providing wireless control of a visual aid based on movement detection is disclosed. The system also enables a presenter to gesture at a visual aid and have a pointer be displayed on screens displaying the visual aid. The system may generate a three-dimensional depth image of an environment including a user and a device displaying the visual aid. Additionally, the system may determine a position of the user relative to the environment and to the device based on the three-dimensional image. Furthermore, the system may detect a gesture based on the position of the user and the three-dimensional depth image. If the gesture made by the user matches a predetermined input gesture corresponding to a controller operation for controlling the visual aid, then the controller operation may be executed. The system may display an output of the executed controller operation at a remote device.