摘要:
A device (DVR) handles data items that can be rendered to a user. Such a device may be, for example, a digital video recorder. The device (DVR) comprises a network interface (NWIC, NWIM) that couples the device (DVR) to a network, which comprises other devices. A content analysis initiator (ECF) within the device (DVR) detects that another device, which forms part of the network, comprises a content analyzer. The content analysis initiator (ECF) causes the content analyzer (AVCA) of the other device to be applied to a data item (AVF).
摘要:
The invention relates to an apparatus (300) and a method for analyzing a content stream (201) comprising a content item, and to a computer program product enabling a programmable device. The apparatus comprises a content analysis processor (310) for identifying an exact indicator of a boundary (221, 222) of the content item in the content stream, wherein identifying comprises determining a remote indicator (231) being remote from the boundary and analyzing the content stream starting from the remote indicator towards the boundary to identify the exact indicator.
摘要:
The invention relates to a method of identifying a boundary (211, 212) of a content item in a content stream (201), the method comprising the steps of: (110) receiving predetermined additional data related to the content item, the additional data comprising attribute data describing substantially the whole content item, (130) using a content-analysis processor (310) for analyzing the content stream so as to detect whether the content stream corresponds to the attribute data, and (140) identifying the boundary of the content item in the content stream when the correspondence changes from valid to invalid, or vice versa. The attribute data may indicate a genre of a movie, a music style of a song, etc. or a sequence of genres/music styles. The content-analysis processor (310) utilizes the attribute data to detect whether the content stream belongs to the content item by analyzing the content stream so as to detect the correspondence of the content stream to the attribute data.
摘要:
A content augmentation process for personal recordings involves a service center (SC). The service center (SC) collects personal recordings from various different users via a network so as to constitute a database (DB) of personal recordings. The service center (SC) identifies personal recordings within the database (DB) that concern a particular scene and that are mutually complementary so as to form a selection of personal recordings (FSRR) for content augmentation purposes. The service center (SC) applies a content augmentation process (AUGP) to the selection of personal recordings (FSRR) so as to obtain an enhanced representation (CA).
摘要:
Techniques utilising Time Scale Modification (TSM) of signals are described. The signal is analysed and divided into frames of similar signal types. Techniques specific to the signal type are then applied to the frames thereby optimising the modification process. The method of the present invention enables TSM of different audio signal parts to be realized using different methods, and a system for effecting said method is also described.
摘要:
A method and system for encrypting a video data stream, the video data stream partitioned into units based upon a type of data contained within the units. The method comprising: determining for each unit the type of data contained within the unit; and encrypting a particular unit or a portion of the particular unit based upon the type of data contained within the unit.
摘要:
There is provided an image encoding system (300, 400) including an encoder (300) for receiving input image data and generating corresponding encoded image output data. The encoder includes image processing features (310, 320, 330, 360) for processing said input image data to generate for each input image therein a plurality of corresponding image layers including at least one basic layer BLOP and at least one enhancement layer ELOP. Moreover, the encoder (300) further includes encoding features (350) for receiving said image layers and generating therefrom the encoded image output data. The encoding features further comprising block selecting features (340) for selecting one or more sub-regions of said at least one enhancement layer and modelling said one or more sub-regions for representation thereof in the image output data by way of descriptive model parameters.
摘要:
2D/3D video conversion using a method for providing an estimation of visual depth for a video sequence, the method comprises an audio scene classification (34) in which a visual depth categorization index of visual depth (37) of a scene is made on basis of an analysis of audio information (32) for the scene, wherein the visual depth categorization index (37) is used in a 5 following visual depth estimation (38) based on video information (33) for the same scene, thereby reducing the calculation load and speeding up the processing.
摘要:
The invention relates to a coding method applied to digital video data available in the form of a video stream consisting of consecutive frames. These frames, divided into macroblocks, include at least I-frames, independently coded, or P-frames, temporally disposed between said I-frames and predicted from at least a previous I- or P-frame, or B-frames, temporally disposed between an I-frame and a P-frame, or between two P-frames, and bidirectionally predicted from at least these two frames between which they are disposed, said predictions of P- and B-frames being performed by means of a weighted prediction with unequal amount of prediction from the past and the future. According to the invention, this coding method comprises the following steps: a structuring step, provided for capturing coding parameters characterizing the said weighted prediction; a computing step, for delivering statistics related to said parameters; an analyzing step for determining a change of preference regarding the direction of prediction; a step provided for detecting the occurrences of gradual scene changes; a step provided for generating description data of said occurrences; and a step for encoding the description data thus obtained and the original digital video data.
摘要:
The invention relates to a coding method applied to digital video data available in the form of a video stream consisting of consecutive frames divided into macroblocks. These frames are coded in the form of at least I-frames, coded independently, P-frames, predicted from at least a previous I- or P-frame, and B-frames, bidirectionally predicted from at least two frames between which they are disposed. According to the invention, the coding method comprises the following steps: a structuring step, provided for capturing for all the macroblocks of the current frame related coding parameters characterizing the fact that they have been coded, or not, according to a predetermined intra prediction mode; a computing step, for delivering statistics related to said parameters; an analyzing step, provided for analyzing said statistics for determining the number of blocks which exhibit, or not, said intra prediction mode; a detecting step, provided for detecting, each time said number is greater than a given threshold, the occurrence of an image, or of a sub-region of an image, which is either monochrome or with a repetitive pattern; a description step, provided for generating description data of said occurrences of images or sub-images either monochrome or with a repetitive pattern; a coding step, for coding both description data and original data.