Projection Device Gesture Control Keystone Correction
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Solution Overview
Problem
Current projector control methods require manual adjustment of projection images, such as keystone correction, which is inconvenient and time-consuming.
Innovation Solution
A projection system and control method that includes a terminal device and a projection device, where the terminal device transmits commands to the projection device to project an adjustment image with pattern arrays and adjustment reference points, allowing for automatic adjustment of the image correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation of remote control or human-machine interface is used for projection image adjustment, then the projector can perform keystone correction, but the operation is inconvenient and time-consuming
Solution Approach 1:
The system enables self-service adjustment by allowing users to directly manipulate the projection image on the projection surface through terminal device gestures. The image automatically responds to user actions without requiring manual remote control operations, making the system adjust itself based on user intent captured through simple gestures like pinching or spreading on the projected image.
Solution Approach 2:
The patent replaces the mechanical remote control operation system with a gesture-based control system. Instead of using physical remote controls or complex human-machine interfaces, the system captures gestures made directly on the projection surface and translates them into image adjustment commands, substituting mechanical interaction with optical-field interaction.
2Ease of operation
If traditional manual adjustment methods are used, then the projector can correct keystone distortion, but the adjustment process is complex and not user-friendly
Solution Approach 1:
The terminal device acts as an intermediary between the user and the projector. It captures gestures made on the projection surface, processes them into adjustment commands, and transmits them to the projector. This intermediary layer simplifies the user interface while maintaining precise control capability, bridging the gap between simple user gestures and complex projection adjustment operations.
Solution Approach 2:
The system creates a virtual copy of the control interface on the projection surface itself. Instead of requiring users to learn a separate remote control interface, the control functionality is copied onto the projection surface, allowing users to interact with the image directly where it is displayed, making the adjustment process as simple as manipulating the visual content itself.
Data Source
AI summary
A projection system, a projection device, and a control method thereof are provided. The control method of the projection device includes the following steps: transmitting a first original command by a terminal device; projecting an adjustment image by the projection device in response to the first original command corresponding to an image correction operation of the projection device, wherein the adjustment image includes at least one pattern array and at least one adjustment reference point; transmitting a second original command by the terminal device; and adjusting a position of the at least one adjustment reference point of the adjustment image by the projection device in response to the second original command corresponding to adjusting the position of the at least one adjustment reference point of the adjustment image, wherein the at least one adjustment reference point is located in the corresponding at least one pattern array.