Communication Terminal Video Redaction for Secure Teleconferencing
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Solution Overview
Problem
Existing teleconference systems face challenges in preventing the unintentional leakage of confidential information during video transmission, as captured content may contain sensitive subjects that are not desired to be shared with communication partners.
Innovation Solution
A communication terminal equipped with an acquirer, determiner, and outputter processes video to identify and remove predetermined subjects, such as confidential information, before transmitting a modified video portion to external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video is transmitted as-is during teleconference, then transmission simplicity is maintained, but confidential information may be unintentionally leaked
Solution Approach 1:
The system performs preliminary action by detecting and removing confidential information from the video before transmission. The determination unit analyzes the video content in advance to identify sensitive subjects, and the generation unit creates a cleaned video portion without the confidential information, ensuring security is established prior to transmission occurring.
Solution Approach 2:
The system extracts and removes the harmful element (confidential information) from the video stream. The generation unit creates a new video portion by extracting only the non-confidential content, separating the useful information from the sensitive data, and transmitting only the cleaned version to prevent leakage.
2Reliability
If video processing is performed to remove confidential information, then information security is enhanced, but processing time and computational resources increase
Solution Approach 1:
The system applies partial action by processing only the portions of the video that contain potential confidential information. Rather than processing the entire video stream uniformly, the determination unit identifies specific frames or regions containing sensitive content, and the generation unit processes only those portions, reducing overall processing time and computational resources.
3Reliability
If video content is cleaned of confidential information, then security is improved, but video quality and completeness may be affected
Solution Approach 1:
The system applies local quality by selectively processing only the specific portions of the video that contain confidential information, while leaving the rest of the video content unchanged. The determination unit identifies local regions with sensitive content, and the generation unit applies cleaning only to those regions, preserving the quality and completeness of the overall video while removing only the necessary confidential portions.
Data Source
AI summary
A communication terminal that is provided at one site of a plurality of sites between which a teleconference is performed and communicates with another site via an external device comprises: an acquirer that acquires a video at the one site during the teleconference; a determiner that determines whether the video acquired contains a predetermined subject; and an outputter that performs a first output process of outputting a first video portion to the external device when the video is determined to contain the predetermined subject, the first video portion being obtained by removing a portion of the predetermined subject from the video.