Watermark Detecting

If the watermarked video is leaked and distributed illegally, you can request the watermark detection by sending the video via PallyCon Helpdesk. (Attach a large file transfer service or a cloud storage link to the ticket. A Google Drive link is recommended.)

Watermark detection analyzes each frame of the video to detect the original watermark pattern and decrypts the data with the secret key used at the time of insertion. If the watermark payload is found through the detection process, the session database finds the session information whose key value is the payload and reports it as the detection result.

sequenceDiagram
    participant A as Service site
    participant B as PallyCon service
    A ->> B: Suspicious content
    Note right of B: Detect watermark (payload)
    B -->> B: Analyze video frames
    opt Watermark detected
    Note right of B: Session database
    B -->> B: Find session data
    end
    B ->> A: Report detection result
For watermark detection, a continuous recorded video of at least 5 minutes or longer is required. PallyCon Forensic Watermark solution is robust against various attacks including resizing, but the actual detection rate of the watermark may vary depending on the video quality (resolution, bitrate, shake, etc.) used for detection. The minimum specification required for detection is 480p 1Mbps or higher, and most of the video over 720p can be detected.

The detailed requirements for watermark detection are as follows:

Item Description
Minimum video length In order to detect watermarks, continuous recorded video without repeating sections with a length of at least 5 minutes is required
Video quality At least 480p with 1Mbps is required for detection. 720p or higher quality recommended
Video stability Requires fixed recorded video without shaking. Undetectable if the screen is shaken due to shooting with a handheld camera or smartphone
Buffering or freezing There must be a section that was played normally without buffering or screen freezing for at least 5 minutes

Please contact us for detailed information on watermark detection such as monitoring service.

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