Kddi Corporation

Kokusai Denshin Denwa Co., Ltd.

Kokusai Denshin Denwa Kabushiki Kaisha

Kdd Corporation

Kddi R&d Laboratories, Inc.

Yasuhiro Takishima

Shigeyuki Sakazawa

Masahiro Wada

Satoshi Miyaji

Koichi Takagi

Kazunori Matsumoto

Gen Hattori

Hitomi Murakami

Emi Myodo

Duc Dung Nguyen

Yasuyuki Nakajima

Masaru Sugano

Chihiro Ono

Hiromi Ishizaki

Yasutoshi Watanabe

Tetsuji Yamashita

A scenario generation system, a scenario generation method, and a scenario generation program are provided. A scenario generation system used for video playback synchronized with musical piece playback includes a situation estimating portion for estimating a situation expressed by the musical piece, a video specifying portion for specifying at least one video suited for the estimated situation in the video constituted by scenes each having a time-series order, and a scenario generating portion for generating a scenario associating the scenes constituting the specified video with each section of the musical piece. As a result, a scenario can be generated by the scenes each having the time-series order, and the synchronized video with a natural impression can be reproduced corresponding to the musical piece playback on the basis of the scenario.

Scenario generation system, scenario generation method and scenario generation program

Re-encoding information indicating whether or not an input moving picture has been compression-encoded is provided to a mode determining unit. The mode determining unit determines an optimal encoding mode for the input moving picture, out of a plurality of encoding modes. The mode determining operation is controlled by the re-encoding information. According to a mode determination result of the mode determining unit, a prediction error value corresponding to the determined mode is selected by a selection switch, and then, an encoding process is performed. As the re-encoding information, a pre-determined value, a bit rate, and a quantization parameter, etc., could be provided.

Moving-picture compression-encoding apparatus

A search unitpresents a Web search result report to a client terminal. A theme space construction unitupdates theme information within a theme information DBby a user-acquired information feedback from the client terminal, and performs a Web search to construct a theme space. The search unitincludes an exhaustivity calculation unit that calculates exhaustivity being a ratio of a user-acquired part to a part of an entire target theme. Moreover, the search unitincludes a difference calculation unit that calculates a difference between a 'user-acquired' range when a user has acquired target Web pages and a user-acquired range before that, and a relevance calculation unit that calculates relevance of the target Web pages to the target theme.

Information filtering apparatus

A barcode-embedding area is obtained in a color image based on expression possibility by the juxtaposed additive color mixture and possibility of reading of pixels separately by a barcode reader (S), a color image in the barcode-embedding area is expressed by the juxtaposed additive color mixture, and color images for the code area and the background area, which are readable by the barcode reader, are created (S, S), a color-image-superimposed barcode image is created by using the color images for the code area and the background area, and the same color-image-superimposed barcode image is embedded in the barcode-embedding area (S), and the color-image-superimposed barcode image and the original color image are corrected if necessary (S, S).

Method, apparatus and computer program for embedding barcode in color image

The present invent ion provides a condensed SVM for high-speed learning using a large amount of training data. A first stage WS selector samples a plurality of training data from a training data DB, selects an optimal training vector xamong the plurality of training data, and outputs it to the WS manager. After the first stage finishes, a second stage WS selector extracts training data one by one from the training data DB and selects training data xsatisfying optimality and outputs it to the WS manager. An SVM optimizer extracts training data closest to the training data xselected by the first and second stage WS selectors from the WS being managed by the WS manager, and condenses the two first and second training data to one training data when the distance between these is smaller than a predetermined value.

Condensed SVM

An SV reduction method for multi-class SVMs is provided with which a number of SVs contained in the multi-class SVMs can be reduced without becoming trapped in a local minimum optimization solution and the reduction of the SVs can be performed at high precision and high speed. The method includes a step of selecting, from a plurality of initially present support vectors, support vector pairs z, z(i, j=1, 2, . . . , N); a step of preparing a single-variable objective function with a single global maximum and determining a maximum value k of the objective function; and a step of applying the maximum value k to the support vector pairs zand zto determine a temporary vector Ztemp[i] of small classification errors; and the support vector pairs z, zare represented by the temporary vector Ztemp[i].

SV reduction method for multi-class SVM

The present invention provides a scrambled compressed data distribution device that can perform a high-resistance scrambled compressed data distribution by selectively using a plurality of types of scramble information and a playback device thereof. A scrambling section scrambles compressed data by unique one of a plurality of scrambling methods. A hash value calculating section determines a hash value based on data b in a position where digital watermark data is not embedded, and an encrypting section encrypts the hash value with a secret key Sk(n) corresponding to the scrambling method and outputs an encrypted hash value c. A watermark data embedding section embeds the encrypted hash value in a watermark data embedding position of the data b and transmits the same as a compressed data stream d.

Compressed data scrambled distribution device and playback device thereof

Degraded digital data is distributed from a serverto each user A, B, C, and D. An encrypted degradation compensation module is also delivered to the digital data duplicating apparatusfor the user A. The digital data duplicating apparatusdecrypts the encrypted degradation compensation module using its own encryption key, when playing digital data, to generate a 100% degradation compensation module. This module is applied to the degraded digital data to compensate the degradation thereof. An encrypted degradation compensation module of which the degradation compensation capability is reduced is delivered from the user A to the user B. The user B can use the encrypted degradation compensation module of which the degradation compensation capability is reduced from the user A to replicate the degraded digital data.

Method and apparatus for digital data accompanied by degradation

The present invention provides an electronic watermark editor for a compressed video that can efficiently carry out editing such as deletion or rewriting of electronic watermark data. DCT coefficient values are extracted while applying all templates to video contents, and a template where a total sum of relative absolute value differences between pairs of the DCT coefficient values is maximized is judged to be an applied template. The pairs of DCT coefficient values extracted by the applied template are processed by a smoothing process section so that the relative differences are reduced and so as to reduce individual relative differences recursively until significant differences between the coefficient value pairs are statistically eliminated. In addition, the pairs of DCT coefficient values extracted by the applied template are replaced with new editing bits.

Electronic watermark editor for compressed video

The present invention improves the encoding efficiency, image quality, resolution, and the like of an input image having a special property, for example, an image input from a special camera. The input image is sliced according to a recognized shape and divided into blocks having a size according to a pixel density or an image resolution. Then, an object in the image is defined using a parameter including the numbers of the sliced images and the amounts of shift of the sliced images from a reference position, and the respective blocks are encoded using the movement of the object. Further, when a partial image is cut out from a base image, encoded, and then transmitted, a processing load in the encoding processing is reduced by encoding the partial image making use of preprocessing data.

Adaptable shape image encoding apparatus and decoding apparatus

A transmitting device includes a first buffer for temporarily storing audio data, a second buffer for temporarily storing video data, a multiplexing unit for outputting audio data coming from the first buffer and video data coming from the second buffer onto a single signal channel, and a transmission buffer monitoring unit for monitoring the amount of first buffered data stored in the first buffer and, if the amount of the first buffered data exceeds a first threshold, instructing the second buffer to discard video data.

Transmitting device with discard control of specific media data

First, a set of seed images that tally with each other are prepared (S). Next, a set of threshold matrices are created from the set of seed images (S). Next, a plurality of tally images are created from an input gray-scale image by using the set of threshold matrices (S). The tally images are combined, whereby the confidential image is decoded.

Tally image generating method, decoding method, tally image generator, and decoder

An audio playback apparatus includes a playback section for playing audio back, a buffer section () for temporarily storing voice data to be played back, a switch () for on/off switching transmission of the voice data from the buffer section () to the playback section, at least one threshold judgment section () for judging whether an amount of voice data buffered in the buffer section () is equal to or smaller than at least one threshold value, the at least one threshold judgment section () providing a true output when the buffered voice data amount is equal to or smaller than the at least one threshold value, a timer () triggered by an output from the at least one threshold judgment section to output a trigger pulse with a predetermined duration of time, and a first control section () for controlling on/off of the switch () to prevent transmission of the voice data in the buffer section () to the playback section for the predetermined duration of time of the trigger pulse when the true output is provided from the at least one threshold judgment section ().

Audio playback apparatus for controlling pause and resume of audio

An object of the present invention is to perform DCT coefficient operation and drift compensation for embedding watermark data with the small amount of computing. An MB data extraction unit extracts a macro block or block into which the watermark data is embedded on the basis of a template. Additionally, a DCT coefficient extraction unit extracts the DCT coefficient at a position into which the watermark data is embedded according to a direction of the template. A DCT coefficient operation unit performs the process of embedding the watermark data or the process of compensating the drift to the extracted DCT coefficient.

Growing community of inventors

Saitama, Japan

Yasuhiro Takishima