CLIENT-SIDE FORENSIC WATERMARK DEVICE, SYSTEM AND METHOD

Title:

CLIENT-SIDE FORENSIC WATERMARK DEVICE, SYSTEM AND METHOD

Document Type and Number:

WIPO Patent Application WO/2021/101170

Kind Code:

A1

Abstract:

The present invention relates to a client-side forensic watermark device, system and method. The forensic watermark device, which can communicate with a content server for selecting a watermark mask area that is to display a watermark mask from image content and storing watermark area information about the watermark mask area in a storage unit, according to the present invention, comprises: a downloading unit for requesting a content server to playback image content, and receiving the image content and watermark area information from the content server; a watermark mask generation unit for outputting a watermark mask by using the watermark area information inputted from the downloading unit; and an overlapping unit for overlapping the watermark mask inputted from the watermark mask generation unit with the watermark mask area of the image content inputted from the downloading unit, thereby enabling a client side to cope with a collusion attack by displaying a forensic watermark.

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Inventors:

PARK BYEONG SUN (KR)
PARK SANG HO (KR)
YUN SUNG JU (KR)

Application Number:

PCT/KR2020/015908

Publication Date:

May 27, 2021

Filing Date:

November 12, 2020

Export Citation:

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Assignee:

INKA ENTWORKS INC (KR)

International Classes:

H04N21/8358; G06T7/194; H04N21/2389

Foreign References:

KR20110007789A	2011-01-25
KR20130116307A	2013-10-23
KR20100062111A	2010-06-10
KR20180082450A	2018-07-18
KR20180004741A	2018-01-12

Other References: