Remote Display Image Capture via Video Stream Replacement
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Solution Overview
Problem
Portable electronic devices with image capture capabilities often suffer from visual distortion when capturing images from remote displays due to mismatched refresh rates and unsynchronized clocks, leading to suboptimal image quality.
Innovation Solution
The electronic device automatically detects images on a remote display within its video stream, establishes communication with the external device, and requests a higher quality video stream with synchronized refresh rates, replacing the original video stream to eliminate distortion and enhance image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the imager captures video stream from remote display, then image capture is enabled, but visual distortion occurs due to mismatched refresh rates
Solution Approach 1:
The patent introduces an intermediary system consisting of display detection engine and communication device that mediates between the imager and remote display. The detection engine identifies the remote display in the video stream, establishes communication channel, and coordinates refresh rate synchronization, thereby eliminating visual distortion while maintaining image capture capability
Solution Approach 2:
The patent dynamically changes the refresh rate parameter of the imager to match the detected refresh rate of the remote display. This parameter adjustment eliminates temporal mismatch between capture and display refresh cycles, removing visual distortion artifacts while preserving full image capture functionality
2Manufacturing precision
If higher resolution video stream is requested from external device, then image quality improves, but data transmission requirements increase
Solution Approach 1:
The patent implements dynamic quality adjustment where the electronic device can switch between different video stream quality levels based on usage scenario. For viewing purposes, standard quality is used; for recording purposes, higher resolution is requested. This dynamic adaptation optimizes image quality while managing data transmission requirements efficiently
Solution Approach 2:
The patent requests higher quality video stream than strictly necessary for display purposes, providing excess quality data that can be utilized when recording is needed. This partial over-provisioning ensures high quality capture capability is available on-demand without requiring permanent high-bandwidth connection
Data Source
AI summary
A method in an electronic device includes detecting, by one or more processors from a first video stream captured by an imager, one or more images being presented by a remote display of an external electronic device. The method includes receiving, with a communication device operable with the one or more processors in response to the detecting, a second video stream comprising the one or more images being presented on the remote display. The method includes replacing, by the one or more processors on a local display of the electronic device, presentation of the first video stream with the second video stream. This works to eliminate visual distortion due to differences between the refresh rates of the display and remote display or asynchronous nature of the clocks in the electronic device and the external electronic device.