Patent application number | Description | Published |
20090125310 | APPARATUS AND METHOD FOR INSERTING/EXTRACTING CAPTURING RESISTANT AUDIO WATERMARK BASED ON DISCRETE WAVELET TRANSFORM, AUDIO RIGHTS PROTECTION SYSTEM USING THE SAME - An apparatus and method for embedding and extracting a capturing-resistant audio watermark based on discrete wavelet transform, and a copyright management system using the same are provided. The apparatus for embedding a wavelet based audio watermark includes: a framing unit for dividing an input audio signal into small signals with a regular length; a discrete wavelet transform unit for calculating an mean value of wavelet coefficients by transforming the small signals based on a discrete wavelet transform; and an embedding unit for changing the calculated mean value according to a watermark where a synchronization signal is inserted and inserting the watermark into the audio signal. | 05-14-2009 |
20090172404 | Method and Apparatus for Hybrid Watermarking - A hybrid watermark insertion method includes the steps of dividing the digital image into a low frequency region and a high frequency region using an edge map of the digital image; inserting a watermark into the low frequency region of the image by employing a watermarking method using a human visual system (HVS); and inserting the watermark into the high frequency region of the image by employing a quantization index modulation (QIM) method. A hybrid watermark extraction method includes the steps of estimating a reference value used when inserting a watermark, and searching a maximum value of correlation coefficients in an image of the watermark image while changing the estimated reference value within a designated range, to thereby find out the watermark insertion method. Accordingly, the watermark insertion method can be easily identified, thereby enabling the watermark extraction in a more readily manner. | 07-02-2009 |
20090238465 | APPARATUS AND METHOD FOR EXTRACTING FEATURES OF VIDEO, AND SYSTEM AND METHOD FOR IDENTIFYING VIDEOS USING SAME - An apparatus for extracting features from a video includes a frame rate converter for performing a frame rate conversion on the video to a preset frame rate, a gray scale converter for performing a grey scale conversion on the frame rate-converted video, a frame size normalizer for performing a frame size normalization on the gray scale-converted video to a preset image size, and a feature extractor for partitioning the normalized video into image blocks of a predetermined size, and extracting features from the image blocks on the basis of luminance values of the image blocks. A video identification system employs the feature extracting apparatus to identify an original video and an object video. | 09-24-2009 |
20100063978 | APPARATUS AND METHOD FOR INSERTING/EXTRACTING NONBLIND WATERMARK USING FEATURES OF DIGITAL MEDIA DATA - An apparatus and method for inserting/extracting a nonblind watermark using features of digital media data are provided. The apparatus and method inserts a watermark adaptively using watermark-related information determined by analyzing the characteristics of digital media data, also extracts features of the digital media data, automatically searches original media data corresponding to the features, and simultaneously and efficiently extracts a watermark using watermark-related information. Therefore, When the watermark is extracted, the original media data can be searched automatically. | 03-11-2010 |
20100149424 | SYSTEM AND METHOD FOR DETECTING SCENE CHANGE - The present invention relates to a system for scene change detection including a decoder decoding input digital video data into video data compressed by a single codec or uncompressed video data in a codec-independent format, a normalizer normalizing the video data decoded by the decoder in a temporally and spatially uniform format, and a scene change detector computing a mode ratio for each frame of the normalized video data through a mode determination, and determining, when a frame has a mode ratio higher than a preset threshold value, that a scene change has occurred at the frame. The decoder decodes video data compression-coded by various video codecs into uncompressed video frames. | 06-17-2010 |
20100182401 | SYSTEM AND METHOD FOR MANAGING DIGITAL VIDEOS USING VIDEO FEATURES - A method for managing digital videos includes extracting a feature of an input digital video, searching for candidate features having similarity to the extracted feature, and comparing the extracted feature with each of the candidate features to select at least one of the candidate features similar to the extracted feature and provide information on a digital video corresponding to the selected candidate feature. | 07-22-2010 |
20100268715 | INDEX DATABASE CREATING APPARATUS AND INDEX DATABASE RETRIEVING APPARATUS - An index database creating apparatus includes a feature extracting unit for extracting features from a content; an index creating unit for creating feature indices of the extracted features; an index selector for selecting one or more of the feature indices based on frequency-based importance levels thereof; and a feature index database for storing therein the selected feature indices along with locations thereof in the content. The index selector obtains the frequency-based importance levels based on frequency distributions of the feature indices in the content and in other contents to be stored in the feature index database. | 10-21-2010 |
20100329639 | APPARATUS AND METHOD FOR PROTECTING COPYRIGHT FOR MOTION PICTURE AND RECORD MEDIUM - Provided are an apparatus and method for processing motion picture and a record medium, which decompose a motion picture into unit frames and insert copyright information into the unit frames, enabling to determine the infringement of copyright when the motion picture is illegally circulated. The apparatus includes a processing unit, a merging unit and an output unit. The processing unit decomposes a motion picture into a plurality of unit frames, and generates a main frame, a sub-frame including copyright information for the motion picture and a degree frame which is paired with the sub-frame, based on the unit frames. The merging unit merges the sub-frame into the main frame according to a degree of mergence of the degree frame. The output unit continuously outputs the merged frames in time order. | 12-30-2010 |
20110261997 | FORENSIC MARK INSERTION APPARATUS AND METHOD - A forensic mark insertion apparatus includes: an original content segment storage unit for storing multiple original contents; and a service control unit for, in response to a request for a content from a user, retrieving an original content corresponding to the request for the content from the original content segment storage unit, separating the retrieved original content into plurality of content segments, selectively inserting a forensic mark into some of the content segments, and assembling the content segments to produce an forensic-mark inserted content to be provided to the user. | 10-27-2011 |
20120124473 | SYSTEM AND METHOD FOR PLAYING MUSIC USING MUSIC VISUALIZATION TECHNIQUE - A music playing system using a music visualization technique includes: a music information extraction unit for extracting one or more pieces of music information regarding basic characteristics, meta-characteristics and emotional characteristics of music, the music including music being played at present, music selected for playing, and music selected for visualization; and a display control unit that provides a user interface window for visualizing the extracted music information and controls the user interface window, wherein the user interface window includes a visualization configuration panel having a setup function for selecting the music information to be extracted. | 05-17-2012 |
20120151215 | APPARATUS AND METHOD FOR PROTECTING COPYRIGHT OF DIGITAL CONTENT, AND APPARATUS AND METHOD FOR DETERMINING AUTHENTICITY OF DIGITAL CONTENT - Provided are an apparatus and method for protecting the copyright of digital content, and an apparatus and method for determining the authenticity of digital content. The apparatus for protecting the copyright of digital content includes a creative commons license (CCL) watermark application unit configured to watermark digital content provided with | 06-14-2012 |
20120151598 | APPARATUS AND METHOD FOR FORENSIC MARKING OF DIGITAL CONTENT - Provided are an apparatus and method for forensic marking of digital content. The apparatus includes a forensic marker configured to generate first content by inserting a first binary forensic mark in original content and second content by inserting a second binary forensic mark in the original content, and when a content service request is generated, combine the first content and the second content on the basis of information about a user who has requested the content service and thereby generate third content in which a forensic mark corresponding to the user information is inserted, a content database configured to store the first and second content, and a transceiver configured to transmit the third content. | 06-14-2012 |
20130104242 | METHOD AND SYSTEM FOR FORENSIC MARKING OF DIGITAL CONTENTS - Disclosed are a forensic marking method and a forensic marking system capable of inserting in real-time a forensic mark for user information in digital contents provided online. The forensic marking method of the digital content according to an exemplary embodiment of the present disclosure includes generating a first content created by inserting a first forensic mark in an original content and a second content created by inserting a second forensic mark in the original content by a content server; transmitting the first and second contents to a client terminal by the content server; and combining fragments of the first and second contents in a combination order corresponding to user information to generate a third content by the client terminal | 04-25-2013 |
20130132988 | SYSTEM AND METHOD FOR CONTENT RECOMMENDATION - Disclosed are a system and method for recommending contents. The content recommendation method includes: receiving audio data or a fingerprint and emotion information of the audio data; extracting a fingerprint and emotion information of the received audio data when the audio data is received; extracting video information corresponding to the fingerprint and emotion information of the audio data to provide the extracted video information to a user if video recommendation is requested; and extracting audio information corresponding to the fingerprint and emotion information of the audio data to provide the extracted audio information to the user if audio recommendation is requested. | 05-23-2013 |
20130138232 | APPARATUS AND METHOD FOR EXTRACTING HIGHLIGHT SECTION OF MUSIC - Disclosed are an apparatus and a method for extracting a highlight section of music. The apparatus for extracting a highlight section of music in accordance with the embodiment of the present invention includes a frame divider that divides an audio file into a plurality of frames having a predetermined sample length; an average energy signal calculator that calculates a signal representing the average magnitude of audio energy for a plurality of samples belonging to each frame for each frame of the plurality of frames; and a highlight section selector that extracts a low frequency signal from the signal representing the average audio energy magnitude for each frame and determines the highlight section from frame sections including maximum points of the low frequency signal. | 05-30-2013 |
20130138684 | METHOD AND APPARATUS FOR SEARCHING FOR RECOMMENDED MUSIC USING EMOTIONAL INFORMATION OF MUSIC - The present invention relates generally to a method and apparatus for searching for recommended music using the emotional information of music and, more particularly, to a method and apparatus that enable recommended music to be searched for using mixed emotions by extracting emotional values including a valence value and an arousal value from an input search condition when a predetermined search condition is input by a user, extracting an emotion rank combination corresponding to the extracted emotional value information using an emotion model that includes mixed emotions corresponding to the emotional values, searching a music emotion DB for music information corresponding to the emotion rank combination, and outputting a recommended music list based on the results of the search, thus improving the user's satisfaction with the results of the search. | 05-30-2013 |
20130142433 | SYSTEM AND METHOD FOR FINGERPRINTING FOR COMICS - The present disclosure relates to a system and a method for finger printing for comics. A system for searching comics according to the present disclosure includes: a fingerprint database storing fingerprints extracted from comics, a comics fingerprint extraction unit extracting fingerprints configured of at least one of box frames, cuts, and speech bubbles included in input comic images, a fingerprint based candidate group search unit searching candidate groups among comics stored in the fingerprint database using the extracted fingerprints, and a similarity measuring unit measuring similarity between the searched candidate groups and the comic images corresponding to the extracted fingerprints. | 06-06-2013 |
20130290330 | METHOD FOR EXTRACTING FINGERPRINT OF PUBLICATION, APPARATUS FOR EXTRACTING FINGERPRINT OF PUBLICATION, SYSTEM FOR IDENTIFYING PUBLICATION USING FINGERPRINT, AND METHOD FOR IDENTIFYING PUBLICATION USING FINGERPRINT - Disclosed are a method and an apparatus for extracting a fingerprint of a publication. And disclosed are a system and a method for identifying a publication using a fingerprint. The system for identifying the publication using the fingerprint includes: a fingerprint extraction unit for extracting fingerprints for collected query publications to identify the copyrights infringement; a fingerprint query unit for querying fingerprints of original publications corresponding from the fingerprint extraction unit; a DBMS for storing the fingerprints extracted from the original publications and additional information from the original publications, and providing a search result candidate group which is composed of fingerprints of at least one of the original publications corresponding to the queries of the fingerprint query unit; and a candidate group verification unit for determining copyright infringement for the query publications by verifying the search result candidate group provided from the DBMS. | 10-31-2013 |
20130301869 | FORENSIC MARKING APPARATUS AND METHOD FOR REAL-TIME CONTENT SERVICE - A forensic marking apparatus includes a preprocessing unit configured to selectively perform preprocessing for forensic processing on content to be provided to a user terminal; and a forensic processing unit configured to perform forensic marking on the content by combining content files preprocessed by the preprocessing unit or perform the forensic marking on an uncompressed original content file in real time, in accordance with a forensic processing method set for the content. Further, the forensic marking apparatus includes a control unit configured to determine the forensic processing method for the content, to control the forensic processing unit so that forensic processing is performed on the content in accordance with the determined method, and to provide the forensic-processed content to the user terminal. | 11-14-2013 |
20140016789 | APPARATUS AND METHOD FOR MEASURING QUALITY OF AUDIO - Disclosed herein is an apparatus and method for measuring quality of audio. The apparatus includes a distorted signal generation unit, an extraction unit, a distortion level measurement unit, a distortion function generation unit, and a search and measurement unit. The distorted signal generation unit generates a plurality of distorted signals with respect to audio in compliance. The extraction unit extracts a fingerprint and AV information corresponding to the audio and fingerprints and AV information corresponding to the plurality of distorted signals. The distortion level measurement unit measures fingerprint distance differences, and arousal and valence (AV) distance differences. The distortion function generation unit generates a fingerprint distortion function and an AV distortion function. The search and measurement unit measures the quality of the audio by extracting a fingerprint and AV information from query audio and then comparing extraction results with the fingerprint distortion function or AV distortion function. | 01-16-2014 |