Display System Cyclic Frames Reduce Screenshot Quality
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Solution Overview
Problem
Modern computing devices face challenges in securing sensitive data as high-quality screenshots can capture and share important information, compromising privacy and security.
Innovation Solution
The implementation of techniques that degrade the quality of screenshots by displaying content using cyclic images with only a portion of the pixels clearly visible at any given time, exploiting psychophysical properties of vision to ensure that the brain fills in missing information, thus making high-quality captures difficult.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If high-quality display is used to show content, then visual quality is improved, but screenshot quality also improves which compromises security
Solution Approach 1:
The display is divided into multiple cyclic image frames, each showing different portions of the complete content. Each frame contains only a subset of the total pixels, so that no single frame or screenshot captures the complete high-quality image. The human visual system integrates these sequential frames to perceive the full content, while any captured frame remains incomplete and low-quality.
2Loss of information
If all pixels are displayed clearly at once, then information completeness is improved, but security against capture is worsened
Solution Approach 1:
The system employs periodic display of cyclic image frames that cycle through different portions of the content. Each frame is displayed for a brief period, and the sequence repeats. This periodic action ensures that complete information is conveyed to the human viewer over time, while any instantaneous capture (screenshot) only captures a fragment of the content at a specific moment in the cycle.
3Manufacturing precision
If static high-resolution images are displayed, then image quality is improved, but vulnerability to screenshot capture increases
Solution Approach 1:
Instead of displaying a static high-resolution image, the system dynamically cycles through multiple image frames, each showing a different portion or degradation level of the content. This dynamic display approach maintains high perceived quality for human viewers through motion integration while ensuring that any static capture (screenshot) only captures a degraded or partial version of the image at a specific moment in the cycle.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively reduces the quality of screenshots and image captures, enhancing the privacy and security of sensitive data by ensuring that only a portion of the content is clearly visible, even when attempting to take a screenshot.
Implementation Method 1
exploiting psychophysical properties of vision to ensure that the brain fills in missing information
Data Source
AI summary
Techniques for displaying content on a display to reduce screenshot quality are described herein comprising generating a set of degradation frames based on a source frame, with each degradation frame in the set of degradation frames based on applying one or more alterations to the data in the source frame based on a set of degradation parameters. A frame display order is determined and at least a subset of the degradation frames is displayed, corresponding to the frame display order.