Projector Image Capture Without Body Overlap
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Solution Overview
Problem
Users face inconvenience when operating projectors during presentations, as they need to navigate buttons while maintaining distance from the projector, leading to potential human body overlap in images during photographing commands entered on the screen.
Innovation Solution
An image display and photographing system with detectors to ensure the user's body does not overlap with the image, using a projector with a display device, photographing device, first detector for object movement, second detector for touch at a predetermined position, and third detector for photographing control, allowing the system to capture images without the user's body in the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user operates a button displayed on the screen to enter a photographing command, then the photographing function can be conveniently controlled, but the user's human body may be photographed above the image
Solution Approach 1:
The system detects the user's position in advance before photographing. When the user approaches the projection surface, the system displays a notification instructing the user to move away from the photographing area. This preliminary detection and warning prevents the user's body from appearing in the final photograph, while still allowing convenient operation of the photographing command through the displayed button.
2Measurement precision
If the user stands close to the projection surface to operate the button, then the operation is more accurate, but the user's body overlaps with the projected image
Solution Approach 1:
The system introduces an intermediary mechanism - a detection device that senses the user's position and an notification display that mediates between the user's need to be close for accurate operation and the requirement to avoid body overlap. The notification serves as a mediator that allows the user to maintain close proximity for accurate button operation while warning them to position themselves correctly to avoid appearing in the photograph.
Data Source
AI summary
An image display and photographing system includes a display device configured to display a target image on a surface; a photographing device configured to photograph the surface; a first detector configured to detect that an object moves away from a space between the surface and the photographing device; a second detector configured to detect that, after the first detector detects that the object moves away from the space, the surface is touched at a predetermined position; a third detector configured to detect that, after the second detector detects that the surface is touched at the predetermined position, the object moves away from the space; and a photographing control portion configured to control, after the third detector detects that the object moves away from the space, the photographing device to photograph the surface.