Abstract: The present invention relates to a system and method for providing additional information using image matching. The present invention provides a system for providing additional information using image matching, including: a image input unit configured to receive a video or an image input from a user terminal; a query image determination unit configured to determine a query image, i.e.

Abstract: An advertisement detection system based on fingerprints, including a content stream storage unit storing broadcast content in real time, a section selection unit selecting a reference section and a test section from broadcast content stored by the storage unit, a fingerprint extraction unit extracting fingerprints from the reference section and test section selected by the selection unit, a fingerprint matching unit comparing fingerprints from the test section and reference section, extracted by the extraction unit, with each other and then performing matching between the fingerprints, an advertisement section determination unit determining advertisement segments from the test section based on results of the matching performed by the matching unit, an advertisement DB management unit storing segment information about the advertisement segments determined by the determination unit in an advertisement DB and managing the DB, and a section update unit changing the reference section and test section selected by t

Abstract: The present invention relates to a system and method for providing an image-based video service. The present invention provides a system for providing image-based video service, including a cache system configured to store video information that matches image-related data; a fingerprint extraction unit configured to extract the fingerprint of an image corresponding to input image-related data; and a matching unit configured to determine video information that matches the fingerprint of the image extracted by the fingerprint extraction unit; wherein the system for providing image-based video service determines video information, matching image-related data received from a client terminal, via the cache system or the matching unit, and transmits video result information corresponding to the determined video information to the client terminal, and a method using the same.

Abstract: The present invention relates to a method and system for constructing a database (DB) based on mutual relations between pieces of video data. The present invention provides the method of constructing a DB based on mutual relations between pieces of video data, including 1) generating one or more nodes so that pieces of identical video data are included in an identical node, 2) generating pieces of node information about respective generated nodes, 3) comparing comparison target video data with pieces of video data of the respective nodes, and then setting relations between the comparison target video data and the pieces of video data of the respective nodes, and 4) updating pieces of node information about the respective nodes, based on the set relations, and also provides a DB construction system using the method.

Abstract: The present invention relates to an apparatus and method for efficiently generating feature data which properly determines a feature point indicating features of images and describes the feature point. The apparatus for generating image feature data comprises: a feature point determining unit which determines a feature point from an image and extracts information on the determined feature point; a feature point filtering unit which determines, as a final feature point, at least one feature point from among the feature points determined by the feature point determining unit; and a feature data generating unit which generates image feature data based on the final feature points determined by the feature point filtering unit and feature point information on the final feature points.

Abstract: The present invention relates to an apparatus and method for recognizing content using an audio signal. The content recognition apparatus includes a query fingerprint extraction unit for forming frames having a preset frame length for an audio signal, and generating frame-based feature vectors for respective frames, thus extracting a query fingerprint. A reference fingerprint DB stores reference fingerprints to be compared with the query fingerprint and pieces of content information corresponding to the reference fingerprints. A fingerprint matching unit determines a reference fingerprint matching the query fingerprint. In this case, the query fingerprint extraction unit forms the frames while varying a frame shift size that is an interval between start points of neighboring frames in a partial section. According to the present invention, there can be provided a content recognition apparatus and method which can maintain the accuracy and reliability of matching while promptly providing results.

Abstract: The present invention relates to an apparatus and method for efficiently generating feature data which properly determines a feature point indicating features of images and describes the feature point. The apparatus for generating image feature data comprises: a feature point determining unit which determines a feature point from an image and extracts information on the determined feature point; a feature point filtering unit which determines, as a final feature point, at least one feature point from among the feature points determined by the feature point determining unit; and a feature data generating unit which generates image feature data based on the final feature points determined by the feature point filtering unit and feature point information on the final feature points.

Abstract: A method of processing moving picture and an apparatus thereof are disclosed. A method of processing a moving picture comprising: calculating a color distribution vector for each of plural sub-frames which are generated by dividing a frame of the moving picture; generating a first order differential of the color distribution vector based on the color distribution vector; generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector, is provided. The moving picture processing method can provide an efficient mean to determine commonality between moving pictures by extracting a feature from a frame of the moving pictures.

Abstract: A method of processing moving picture and an apparatus thereof are disclosed. A method of processing a moving picture comprising: calculating a color distribution vector for each of plural sub-frames which are generated by dividing a frame of the moving picture; generating a first order differential of the color distribution vector based on the color distribution vector; generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector, is provided. The moving picture processing method can provide an efficient mean to determine commonality between moving pictures by extracting a feature from a frame of the moving pictures.