Transparent Display Camera View Alignment
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Solution Overview
Problem
Portable terminals with transparent display panels face challenges in aligning the camera's view with the user's perspective, resulting in an offset between the image seen by the user and the image captured, making it difficult to photograph the desired image.
Innovation Solution
The portable terminal adjusts the camera's view direction and angle to match the user's perspective by analyzing images from multiple cameras and adjusting the display and camera position accordingly, ensuring the image projected on the transparent display matches the image captured.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transparent display panel is used in a portable terminal, then the display transparency and aesthetic appearance are improved, but the alignment between the user's view and the camera's capture area deteriorates, causing an offset between the projected image and the captured image
Solution Approach 1:
The patent introduces a new spatial dimension by adding a second camera at a different position (front surface vs. rear surface) to capture the offset between user view and camera capture. This dimensional addition enables the system to measure and compensate for the alignment error, resolving the contradiction between display transparency and alignment precision
Solution Approach 2:
The patent replaces mechanical adjustment of camera position with software-based image processing. By capturing images from multiple cameras and computationally adjusting their positions and angles, the system achieves alignment without physical mechanical adjustments, maintaining display transparency while improving alignment precision
2Device complexity
If the camera is fixed at a specific position on the portable terminal, then the device structure is simplified, but the ability to capture the desired image area deteriorates when the user's viewpoint changes
Solution Approach 1:
The patent makes the camera system dynamic by using software to adjust the capture area and image processing parameters based on the user's viewpoint. The capture area is dynamically modified according to the user's position, allowing the fixed physical camera to adapt to changing user perspectives without increasing device complexity
Solution Approach 2:
The patent makes the camera system universal by using multiple cameras (front and rear) that can serve different functions. The system can select and process images from either camera depending on the user's viewpoint, making the camera system adaptable to various user positions and capture scenarios
3Manufacturing precision
If multiple cameras are added to capture images from different positions, then the alignment between user view and camera capture is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent uses image processing to create a virtual copy of the user's viewpoint. By capturing images from multiple fixed cameras and computationally synthesizing them, the system creates a virtual camera view that matches the user's perspective without requiring a physically adjustable camera, reducing device complexity while maintaining alignment precision
Solution Approach 2:
The patent introduces an intermediary processing step that mediates between the fixed multiple cameras and the user's moving viewpoint. The image processing unit acts as an intermediary, adjusting and synthesizing images from different cameras to match the user's current view direction and angle, achieving precise alignment without complex mechanical structures
Data Source
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AI summary
An apparatus and a method of displaying a camera view area in a portable terminal that addresses the scenario of a viewing angle of a user taker being different from that of the camera, particularly in the case of transparent display panel. The method preferably includes: receiving a first image including a shape of a user when requesting a picture; identifying a position of the shape of the user within the first image; determining whether the identified position of the shape of the user is included in a pre-designated area; calculating a view direction and a view angle of the user by the shape of the user when the identified position of the shape of the user is not included in the pre-designated area as a result of the determination; and rotating a second camera for photographing a second image based on the calculated view direction and view angle.