| Patent application number | Description | Published |
|---|
| 20080250452 | Content-Related Information Acquisition Device, Content-Related Information Acquisition Method, and Content-Related Information Acquisition Program - Information relating to content such as a broadcast program is collected from a wide range of sources. Upon input of content-identifying information, which is information specifying content, a content-affiliated information acquisition unit ( | 10-09-2008 |
| 20090263023 | Video special effect detection device, video special effect detection method, video special effect detection program, and video replay device - An image boundary line candidate pixel detection section detects image boundary line candidate pixels as candidates for pixels specifying an image boundary line from each frame of video and outputs, for each frame, image boundary line candidate pixel information as information indentifying the image boundary line candidate pixels. A line extraction section extracts for each frame as the image boundary line a line specified by the image boundary line candidate pixels indicated by the image boundary line candidate pixel information and output image boundary line description information as information describing the image boundary line for each frame. An image boundary line having frame-set period detection section judges whether or not a frame has the image boundary line for each frame by using the image boundary line description information of respective frames and detects a frame-set period including successive frames having the image boundary line as a frame-set period including special effect. | 10-22-2009 |
| 20100169248 | CONTENT DIVISION POSITION DETERMINATION DEVICE, CONTENT VIEWING CONTROL DEVICE, AND PROGRAM - A content division position determination device | 07-01-2010 |
| 20110051810 | VIDEO DESCRIPTOR GENERATION DEVICE - The video descriptor generation device includes an each-picture feature extraction unit which extracts a feature from a video for each picture which is a frame or a field, and outputs an each-picture feature; an inter-picture feature difference calculation unit which calculates an inter-picture feature difference, which is a difference between features of pictures, from the each-picture features as a difference feature, and calculates a difference feature information amount indicating an amount of information of the difference feature; an additional feature extraction unit which calculates a feature to be added as an additional feature from the video; and a feature combining unit which, if the volume of the difference feature information amount is smaller than a certain criterion, constitutes a video descriptor by incorporating the additional feature in addition to the difference feature. | 03-03-2011 |
| 20110099177 | DATA RETRIEVAL DEVICE - The data retrieval device includes a first skip correspondence table which corresponds to each piece of data in a retrieval target data series, and, for each possible similarity range which is taken by a similarity between corresponding data and retrieval data, records skip destination data information for specifying the data which appears first after the corresponding data among pieces of data in which similarities with the retrieval data have the possibility to have a predetermined relationship in comparison with a predetermined threshold. The data retrieval device also includes a control unit which, when retrieving data in which a similarity with the retrieval data is smaller than or equal to the threshold from among the retrieval target data series, selects data in the retrieval target data series for which calculation of a similarity with the retrieval data is necessary, using the first skip correspondence table. | 04-28-2011 |
| 20110123171 | CONTENT REPRODUCTION CONTROL SYSTEM AND METHOD AND PROGRAM THEREOF - Provided is a content reproduction control system equipped with: a signal characterizing quantity sequence extraction means that, for each content item stored in a content group storage unit that stores at least more than one content item, extracts a signal characterizing quantity sequence which is the sequence of the signal characterizing quantities associated with the content positions on the time axis; a common section group detection means that detects, as a common section group in the signal characterizing quantity sequence for each content item, a common section group for which the signal characterizing quantities for different content items are similar to each other; a content reproduction quality information collection means that, for each common section group, collects content reproduction quality information which indicates the reproduction quality of the content to which each common section of a common section group belongs; and a content reproduction control means that, when the content contained in the content group storage unit is reproduced, switches the content reproduced for the content to be reproduced for the sections included in the common section group and performs reproduction such that the reproduction quality of the content will be higher, based on the content reproduction quality information for the content to which each common section of a common section group belongs. | 05-26-2011 |
| 20110129017 | VIDEO SIGNATURE EXTRACTION DEVICE - A video signature extraction device includes an each-picture feature extraction unit which extracts a feature of each picture, which is a frame or a field, as an each-picture visual feature from an input video; a time axial direction change region extraction unit which analyzes an image change in a time direction with respect to predetermined regions in a picture from the video, obtains a region having a large image change, and generates change region information which is information designating the region; an each-region feature extraction unit which extracts a feature of the region corresponding to the change region information as an each-region visual feature from the video; and a multiplexing unit which multiplexes the each-picture visual feature, the each-region visual feature, and the change region information, and generates a video signature. | 06-02-2011 |
| 20110129155 | VIDEO SIGNATURE GENERATION DEVICE AND METHOD, VIDEO SIGNATURE MATCHING DEVICE AND METHOD, AND PROGRAM - A problem of degradation in the accuracy of video matching, which is caused when videos contain video patterns commonly appearing in various videos or video patterns in which features cannot be acquired stably, is solved. In order to solve this problem, a visual feature extraction unit extracts a visual feature to be used for identification of a video based on features of a plurality of pairs of sub-regions in the video, and a confidence value calculation unit calculates a confidence value of the visual feature based on the features of the plurality of pairs of sub-regions. When matching is performed, visual features are compared with each other in consideration of the confidence value. | 06-02-2011 |
| 20110135203 | FEATURE SELECTION DEVICE - The feature selection device includes a feature extraction unit that extracts M types of features from each of a plurality of original images and each of a plurality of altered images obtained by applying an alteration process to the plurality of original images; and a feature selection unit that handles an original image and an altered image of the original image as identical images and handles altered images of the same original image as identical images, while handles other images as different images, and with use of discrimination capability which is a degree of discriminating different images and robustness which is a degree that a value of a feature does not vary due to the alteration process applied to an image as evaluation criteria, evaluates the M types of features extracted from the respective images, and selects a collection of N types of features, the N types being smaller in number than that of the M types, from the M types of features as features for discriminating images. | 06-09-2011 |
| 20110153609 | SYSTEM FOR DETERMINING CONTENT TOPICALITY, AND METHOD AND PROGRAM THEREOF - A system for determining content topicality comprises a feature value extracting means which extracts feature values of a plurality of contents from the contents; a content grouping means which compares the feature values of the plurality of contents extracted by the feature value extracting means, obtains identical contents and derived contents created using the contents, both of which are included in the plurality of contents, and groups the identical/derived contents, thereby computing identical/derived content grouping information; and a topicality determining means which totals viewing frequencies of the contents determined to be the identical/derived contents from viewing history information and the identical/derived content grouping information relating to the plurality of contents, computes total viewing frequencies of each of the identical/derived contents, and determines the topicality of the identical/derived contents according to the total viewing frequency. | 06-23-2011 |
| 20110158538 | IMAGE FEATURE EXTRACTION DEVICE - This image feature extraction device extracts, from an image, an image feature that makes it possible to adjust the balance between identification capability and robustness, which are the scales of the capability of determining identity of images. This image feature extraction device executes hierarchical quantization to calculate quantization indexes of a plurality of hierarchies in accordance with a previously defined hierarchical quantization method for each quantization target region of an image, and outputs a hierarchical quantization index code, which is an encoding allowing unique specification of the quantization indexes of the respective hierarchies of each quantization target region. | 06-30-2011 |
