Abstract: A method for detection of modification of an item of content, the method comprising: obtaining, for the item of content, a respective first value of each attribute in a set of one or more attributes of the item of content, the set of one or more attributes selected such that, for each of one or more predetermined types of modification, said type of modification affects the value of at least one attribute in the set of one or more attributes; performing a watermark decoding operation on the item of content; and in response to the watermark decoding operation producing payload data from the item of content: determining that the one or more predetermined types of modification have not been applied to the item of content if, for each attribute in the set of one or more attributes, the respective first value for that attribute matches a respective second value for that attribute determined using the payload; or determining that a modification has been applied to the item of content if, for at least one attribute i

Abstract: A method for detection of modification of an item of content, the method comprising: obtaining, for the item of content, a respective first value of each attribute in a set of one or more attributes of the item of content, the set of one or more attributes selected such that, for each of one or more predetermined types of modification, said type of modification affects the value of at least one attribute in the set of one or more attributes; performing a watermark decoding operation on the item of content; and in response to the watermark decoding operation producing payload data from the item of content: determining that the one or more predetermined types of modification have not been applied to the item of content if, for each attribute in the set of one or more attributes, the respective first value for that attribute matches a respective second value for that attribute determined using the payload; or determining that a modification has been applied to the item of content if, for at least one attribute i

Abstract: Watermarking of a content stream is accomplished in a session-based manner to provide watermarking based on a uniquely generated manifest that will result in a stream that allows for unique identification of information. The manifest specifies a sequence of watermarks for successive segments of a content stream designated for a specific receiver. The system and method leverages existing content distribution infrastructure and has many of the benefits of conventional head-end watermarking, allows unique identification of small segments of the data stream and reduces content distribution network storage requirements. Groups of nodes can be provided with unique watermark patterns and detection and watermark pattern reconfiguration can be accomplished in an iterative manner to find a specific node without the need to create unique watermark patterns for each node.

Abstract: Watermarking of a content stream is accomplished in a session based manner to provide watermarking based on a uniquely generated manifest that will result in a stream that allows for unique identification of information. The manifest specifies a sequence of watermarks for successive segments of a content stream designated for a specific receiver. The system and method leverages existing content distribution infrastructure and has many of the benefits of conventional head-end watermarking, allows unique identification of small segments of the data stream and reduces content distribution network storage requirements.

Abstract: Watermarking of a content stream is accomplished in a session-based manner to provide watermarking based on a uniquely generated manifest that will result in a stream that allows for unique identification of information. The manifest specifies a sequence of watermarks for successive segments of a content stream designated for a specific receiver. The system and method leverages existing content distribution infrastructure and has many of the benefits of conventional head-end watermarking, allows unique identification of small segments of the data stream and reduces content distribution network storage requirements. Groups of nodes can be provided with unique watermark patterns and detection and watermark pattern reconfiguration can be accomplished in an iterative manner to find a specific node without the need to create unique watermark patterns for each node.

Abstract: Watermarking of a content stream is accomplished in a session based manner to provide watermarking based on a uniquely generated manifest that will result in a stream that allows for unique identification of information. The manifest specifies a sequence of watermarks for successive segments of a content stream designated for a specific receiver. The system and method leverages existing content distribution infrastructure and has many of the benefits of conventional head-end watermarking, allows unique identification of small segments of the data stream and reduces content distribution network storage requirements.

Abstract: A terminal for generating a live image includes a memory for storing video content, and a live image generator for selecting a number of original frames from original frames constituting the video content in a standby mode, generating a new live image by interpolating the number of selected original frames, and outputting the generated live image as live wallpaper for the standby mode.

Abstract: A method of embedding image-related information in an image, the method including: receiving an image including a plurality of frames; receiving information related to the image; generating a codeword by encoding the image-related information; and embedding the image-related information in the image by substituting macroblocks included in at least one of the plurality of frames of the image based on the generated codeword.

Abstract: A method of embedding a watermark in video data includes generating a watermark to be embedded in the video data, generating a bit string based on a generated watermark, and embedding a watermark in the video data by changing a quantization parameter of the video data by a predetermined value based on the bit string.

Abstract: A method of compressing video signal data via three-dimensional (3D) transformation, and decoding the compressed video signal data. The method includes: receiving transformation coefficients included in video signal data compressed via 3D transformation; selecting at least one transformation coefficient from among the received transformation coefficients based on a reproducing capability of a device for reproducing the video signal data; and decoding the compressed video signal data to video signal data in a spatial domain by 3D inverse transforming the compressed video signal data using the selected at least one transformation coefficient.

Abstract: A terminal for generating a live image includes a memory for storing video content, and a live image generator for selecting a number of original frames from original frames constituting the video content in a standby mode, generating a new live image by interpolating the number of selected original frames, and outputting the generated live image as live wallpaper for the standby mode.

Abstract: A method of embedding image-related information in an image, the method including: receiving an image including a plurality of frames; receiving information related to the image; generating a codeword by encoding the image-related information; and embedding the image-related information in the image by substituting macroblocks included in at least one of the plurality of frames of the image based on the generated codeword.

Abstract: A method of inserting concealed information in image data, the method including: dividing the image data into predetermined groups; determining whether to transform at least one pixel value included in each of the predetermined groups is transformed, according to concealed information; transforming the at least one pixel value according to the determination, and inserting the concealed information in the image data depending on whether the transformed pixel value is included in a predetermined color region.