Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Masataka Ejima

Hisashi Inoue

Kenichi Noridomi

Yusuke Monobe

Hiroyuki Yoshida

Takashi Katsura

Khang Nguyen

Kenji Takita

Mitsuhiro Mori

Shugo Horikami

A video receiving apparatus includes a receiver, a first display, an extractor, an information forming controller, a number-of-viewer detector, a communicator, and a display controller, leading to appropriate display of configuration information and associated information of a video content. The extractor extracts a partial content from the video content. The information forming controller forms the configuration information from the partial content. The number-of-viewer detector detects the number of viewers present within a predetermined area. The communicator receives an identifier transmitted from a mobile terminal having a second display. The display controller can selectively display the configuration information on the second display of the mobile terminal identified by the identifier, and displays the configuration information on at least one of the first and second displays based on the number of the viewers and the number of the identifiers.

Video reception device, information display method, and video reception system

A video receiving apparatus includes: a receiving unit which receives video content; an extracting unit which extracts a partial content which is a portion of the video content by analyzing the video content, to obtain a feature of the partial content item, the feature being characteristic within the video content; an information generating unit which generates a composition information item indicating the partial content item and including at least one of a character and an image; a priority setting unit which sets a priority of the composition information item based on the feature obtained from the partial content item, the priority indicating a degree of association between the video content and the composition information item; and a display control unit which controls display of the composition information item on a display screen according to the priority of the composition information item set by the priority setting unit.

Video receiving apparatus and method of controlling information display for use in video receiving apparatus

The present invention has an object to provide an image processing apparatus and an image processing method capable of, when reducing a blur in an input image, (i) reducing noise included in the input image and (ii) restraining degradation of the image caused by noise processing from being emphasized by image restoration processing. An image processing apparatus () for reducing a blur in an input image includes: a noise processing unit () which performs noise processing that reduces noise to the input image, to generate a noise-processed image; and a restoration processing unit () which performs image restoration processing that reduces a blur to the noise-processed image, the noise processing unit () performing the noise processing based on a characteristic of the image restoration processing.

Image processing apparatus and image processing method for reducing image blur in an input image while reducing noise included in the input image and restraining degradation of the input image caused by the noise reduction

An image processing device () removes noise from an input image by adding the input image to a reference image, and includes: a motion estimation unit () which generates motion information for each of blocks of the input image; a motion compensation unit () which generates a motion-compensated reference image; a block distortion amount calculation unit () which calculates a block distortion amount for each of blocks of the motion-compensated reference image; an addition ratio calculation unit () which calculates an addition ratio of a block of the motion-compensated reference image so that the addition ratio decreases as the block distortion increases; and an addition unit () which perform weighted sum on a pixel value of the block of the motion-compensated reference image and a pixel value of a block of the input image, using the addition ratio.

Removing noise by adding the input image to a reference image

Even in the case where a positional misalignment occurs to an embedded digital watermark, watermark information is accurately detected. A digital watermark embedding device includes a block dividing section for dividing digital data into a plurality of blocks each having a predetermined size, and a block selecting section for selecting m blocks (m is an integer no less than 2) from the plurality of the blocks in accordance with a predetermined order. The device further includes an additional pattern setting section for setting a combination of m additional patterns which are selected from a plurality types of additional patterns, the combination corresponding to one data element to be embedded into the selected m blocks, and an additional pattern embedding section for embedding each of the set additional patterns into each of the selected blocks.

Device, method, and recording medium for embedding/detecting a digital watermark

Information embedding is performed by extracting vertices constituting a polygon from vector data, and changing a number of points that exist on sides of the polygon based on embedment information. Further, information reading is performed by extracting points existing on the sides of the polygon from the embedment information and embedded vector data, and by reading the embedment information according to a predetermined rule.

Information embedding device and program for changing a number of points that exist on sides of a polygon

An information-detecting apparatus () including a receiving unit () operable to receive digital data () that includes several pieces of element data, in which a change amount is imparted to a value of each of first and second element data among the several pieces of element data, a first selecting unit () operable to select, as target data (), a data set that includes the first and second element data, a second selecting unit () operable to select, as neighboring data (), element data in proximity to each of the first and second element data, a calculating unit () operable to calculate, based on both of the target data () and the neighboring data (), the change amount imparted to each of the first and second element data, and a detecting unit () operable to detect the additional information in accordance with the change amount.

Information-detecting apparatus and method

A bit stream is decoded to generate first quantized DCT-coefficients. The first quantized DCT-coefficients are inversely quantized using a first quantization table, thereby generating DCT-coefficients. The resulting DCT-coefficients are quantized using a second quantization table, thereby generating second quantized DCT-coefficients. Elements in the second quantization table are smaller in value than those in the first quantization table. Predetermined additional information is embedded into the second quantized DCT-coefficients. The second quantized DCT-coefficients having the additional information embedded therein are encoded to produce a bit stream having the additional information embedded therein. The second quantization table is set to be smaller in value than the first quantization table.

Image-processing apparatus and method

A digital image signal is divided into blocks. Each of the divided blocks is subjected to orthogonal transformation. As a result, the divided blocks are transformed into several frequency components. One or more frequency components are selected in accordance with a characteristic amount that is extracted from the several frequency components. Values of the selected frequency components are operated under a predetermined rule in accordance with an embedment signal that is generated from embedment information.

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Osaka, Japan

Masataka Ejima