Skew Angle Image Adjustment for Electronic Displays
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Solution Overview
Problem
Users viewing electronic devices at skew angles often cannot perceive display images at their original scale due to the angle of view, leading to distorted content perception.
Innovation Solution
An electronic device equipped with an image capturing device, processing unit, and display device that captures a user image, identifies facial features, determines the vertical skew angle, and adjusts display contents into a deformed image to maintain a normal scale for the viewer by elongating or rotating the image accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If display contents are shown at original scale, then image quality is maintained, but users viewing at skew angles cannot perceive normal scale
Solution Approach 1:
The display system dynamically adjusts the image scale and deformation based on the detected viewing angle. The processing unit calculates the skew angle between the user's line of sight and the display normal, then applies real-time geometric transformation to the display contents, making the image scale adaptive to the user's viewing position rather than fixed at original scale
Solution Approach 2:
The system changes the display parameters (image scale, aspect ratio, geometric deformation) based on the detected viewing angle parameters. By modifying these display parameters in response to the user's viewing position, the system maintains accurate scale perception for users at various skew angles while managing the trade-off with image quality
2Measurement precision
If display contents are deformed to compensate for skew angle, then normal scale perception is achieved, but image quality may deteriorate
Solution Approach 1:
The system applies dynamic geometric transformation to the display contents based on the real-time detected viewing angle. The processing unit continuously adjusts the deformation parameters of the image to compensate for the skew angle, ensuring that users perceive accurate scale regardless of their viewing position, while managing the trade-off with image quality through adaptive rather than fixed transformation
3Measurement precision
If viewing angle detection and image adjustment are implemented, then scale perception is improved for skew angle users, but device complexity increases
Solution Approach 1:
The processing unit performs multiple functions: it detects the viewing angle, calculates the skew angle, determines the appropriate geometric transformation, and applies the adjustment to display contents. By consolidating these functions into a single processing unit rather than separate dedicated components, the system achieves improved scale perception for skew angle users while minimizing the increase in device complexity
Solution Approach 2:
The system uses the display device's own resources (processing unit, display controller) to perform the viewing angle detection and image adjustment functions. The processing unit leverages existing computational capabilities to calculate and apply geometric transformations, reducing the need for additional external components and minimizing the increase in device complexity
Data Source
AI summary
An electronic device is provided. The electronic device includes an image capturing device, a storage unit, a processing unit and a display device. The image capturing device captures a user image. The storage unit stores display contents. The processing unit identifies facial feature locations of the user image, and determines a vertical skew angle according to the facial feature locations. The processing unit further adjusts the display contents to a deformed image according to the vertical skew angle. The display device displays the deformed image.