Video Call Modulation for Privacy and Quality Trade-off
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Solution Overview
Problem
Video call services risk infringing on users' privacy by inadvertently exposing their images and surroundings, as the improved image quality can reveal personal details without consent.
Innovation Solution
A method and system for modulating the video intensity during a video call, allowing users to control the level of video modulation based on events such as time, user input, or detected interactions, ensuring that personal details are not exposed, using terminals and a server that can adjust video modulation in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If video call service uses high-resolution video transmission, then video quality is improved, but user privacy is exposed
Solution Approach 1:
The patent implements dynamic video modulation where the degree of privacy protection is not fixed but changes over time based on call duration and user interactions. The system transitions from high modulation (strong privacy protection) at the beginning of calls to lower modulation (better video quality) as trust is established, resolving the contradiction between privacy protection and video quality
Solution Approach 2:
The system changes the modulation parameter of video based on call progression and user behavior. By adjusting the modulation intensity dynamically during the call, the system can provide strong privacy protection when needed while maintaining video quality when appropriate, thus resolving the trade-off between these two opposing requirements
2Object-affected harmful factors
If video modulation intensity is increased to protect privacy, then privacy protection is improved, but video call quality deteriorates
Solution Approach 1:
The system applies periodic modulation to video feeds during calls, creating visual effects that protect privacy while maintaining communication functionality. This periodic action allows the system to provide privacy protection without completely degrading video call quality, as the modulation is applied in a controlled, time-varying manner
Solution Approach 2:
The modulation intensity is dynamically adjusted based on call duration and user interactions. The system transitions from high modulation intensity (strong privacy protection) to lower intensity (better video quality) as the call progresses and trust is established, resolving the contradiction between privacy protection and video quality
3Adaptability or versatility
If video resolution is gradually increased during call, then user trust is built, but initial privacy risk remains
Solution Approach 1:
The system applies strong video modulation as a preliminary measure at the beginning of calls to protect user privacy before any trust is established. This preliminary privacy protection is then gradually reduced as the call progresses and user trust is built, allowing the system to address both initial privacy risks and user trust needs
Data Source
AI summary
A method for providing a video call service of a terminal according to an embodiment includes establishing a video call session with a second terminal, transmitting a first video that is a photographed video of a first user, from the first terminal to the second terminal, modulating a second video that is a photographed video of a second user and that is received from the second terminal, to a first intensity, and displaying the modulated second video, detecting a predetermined event while the video call session is being maintained, and controlling an intensity of the modulation based on the predetermined event.