Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electrical Industrial Co., Ltd.

Takashi Masuno

Tatsuro Juri

Hiroaki Shimazaki

Kenjiro Tsuda

Katsuo Saigo

Takuma Chiba

Yuki Kobayashi

Kei Tasaka

Yukinaga Seki

Hiroshi Arakawa

Koji Arimura

Yuji Nagaishi

Hideyuki Ohgose

Kazuo Okamoto

Tokikazu Matsumoto

Osamu Kajino

Hideaki Ogawa

Keiichi Ishida

Keiichi Kameda

Takatoshi Nada

Tatsuya Nishimura

Tatsuya Murata

Wataru Masuno

Gouki Kuroda

Yuichiro Miyamoto

Hisakazu Kobayashi

Hiroshi Fujioka

A split unit capable of providing a stereoscopic image having less laterality is provided. The split unit includes: a beam splitter which transmits first imaging light as a part of light incident on an incident surface of the beam splitter, and reflects second imaging light as another part of the light incident on the incident surface; and a reflecting member which reflects the second imaging light reflected by the beam splitter. At least one of a reflectance of the reflecting member and a beam splitting characteristic of the beam splitter is set based on the following formulae:/(1+)=1&#x2212;

Split unit

A transcoder reduces the processing amount when a coded stream to which at least intra prediction is applied is transcoded into a coded stream to which intra prediction and inter prediction are applied. The transcoder converts a first coded stream to at least part of which intra prediction is applied, into a second coded stream to which intra prediction and inter prediction are applied. The transcoder includes a decoding unit that decodes the first coded stream to generate decoded image data; a prediction mode obtaining unit that obtains a prediction mode of intra prediction applied in decoding; and a coding unit that codes the decoded image data by applying the intra prediction or inter prediction to generate the second coded stream. A control unit controls causes the coding unit to use the prediction mode obtained by the prediction mode obtaining unit when the coding unit applies intra prediction.

Transcoder, method of transcoding, and digital recorder

Provided is a moving picture coding device which makes it possible to suppress deterioration in coding efficiency caused by flickers occurring at a time of high-speed capturing under fluorescent lamp lighting or the like. A moving picture coding device which codes a plurality of pictures obtained by capturing an object, the moving picture coding device including: a luminance information acquisition unit which acquires luminance information which indicates a luminance level of light in an environment where the object is captured; and a coding unit which codes the pictures, using a prediction coding method in which a picture type is applied in the coding of the pictures according to a flicker state of the light obtained from the luminance information.

Moving picture coding device and moving picture coding method

To provide an intra prediction apparatus which can circumvent a hazard problem and improve the time reduction effect. An intra prediction apparatusperforms intra predictions of a picture. The intra predictions include: second intra predictions of respective second blocks (blocks) which are obtained by dividing a first pixel block; and a first intra prediction of the first block (macroblock) which constitutes the picture. The intra prediction apparatusincludes: an intra prediction unit (a prediction unit, an orthogonal transform and quantization unit, an inverse orthogonal transform and inverse quantization unit, and an adder) which performs the intra predictions; and a control unitwhich controls the intra prediction unit to perform in parallel the intra prediction of the macroblock and the intra predictions of the respective pixel blocks.

Intra prediction apparatus and intra prediction method using first blocks obtained by dividing a picture and second blocks obtained by dividing the first block

Afforded is an optical element holder allowing high-accuracy stereo images to be taken. The holder includes: a rectangular parallelepiped beam splitter () having a rectangular incident surface (); a pair of mutually opposing holding members () into which end portions of the beam splitter along the x-axis are fitted; and a base portion () and screws () that press on the holding members (), drawing them toward each other. Each of the holding members () has a flat surface portion covering a lateral surface of the beam splitter (), and a peripheral wall portion standing along the periphery of the flat surface potion. A width, along the x-axis, whereby the peripheral wall portion and a first light-exit surface opposing the incident surface () of the beam splitter () overlap is greater than a width, in the same orientation, whereby the incident surface () and the peripheral wall portion overlap.

Optical element holder and stereoscopic imaging device utilizing the holder

A link information generation apparatus records a link information file on a recording medium on which a first folder holding a still picture file that includes still picture data and still picture imaging time information and a second folder holding one or more moving picture files each of which includes moving picture data are recorded at positions that are not in a containment relationship with each other. The link information generation apparatus includes: a moving picture specification unit () that specifies a still-picture-linked moving picture imaged during a time period including a time shown by the still picture imaging time information of the still picture data; a position information obtainment unit () that obtains still-picture-corresponding position information showing a position in the still-picture-linked moving picture corresponding to the still picture imaging time information; and a link information generation unit () that generates link information including still picture identification information for identifying the still picture data, moving picture identification information for identifying the still-picture-linked moving picture, and the still-picture-corresponding position information, and records the link information file including the link information on the recording medium at a position not contained in any of the first and second folders.

Link information generation apparatus, picture recording apparatus, picture reproduction apparatus, recording medium, link information generation method, picture recording method, picture reproduction method, program, and integrated circuit

An optimal interpolation frame is achieved by estimating optimal motion vectors both for a coding process and an interpolation frame generating process. A video codec apparatus coding and decoding a video and generating an interpolation frame in the decoding includes a motion vector estimation unit calculating an evaluation value to evaluate a correlation between images using a calculating formula and estimates a motion vector using the evaluation value, a motion vector coding unit coding video data using the motion vector and outputs a coded stream, video decoding unit decoding the coded stream and outputs video frames generated by the decoding, a frame interpolation unit generating interpolation frame using the motion vector, a cost calculating formula selecting unit selecting the calculation method depending upon whether the coding by the motion vector coding unit or the generating an interpolation frame by the frame interpolation unit is being executed.

Video codec apparatus and method thereof

An intra prediction apparatus includes: a candidate narrowing-down unit which narrows down, from a plurality of intra prediction directions, an intra prediction direction candidate which is applied to a block of multiple pixels that constitutes a video in accordance with a characteristic of the video; and an intra prediction execution unit which executes intra prediction in the intra prediction direction narrowed down by said candidate narrowing-down unit. Through this, computational load can be lightened while contributing to improvement in picture quality and encoding efficiency.

Intra prediction apparatus

An image recording device includes: a reference clock generation generating a reference clock; a first compression unit generating first compressed image data by compressing a first picture that is included in pictures in the captured image and that is equivalent to image captured at the first frame rate; a second compression unit generating second compressed image data by compressing a second picture that is included in the pictures in the captured image except the first picture; a first timestamp generation unit generating a first timestamp indicating a time for presentation of the first picture with reference to the reference clock; a second timestamp generation unit generating a second timestamp indicating a time for presentation of the second picture with reference to the reference clock; a first assignment unit assigning the first timestamp to the first compressed image data; a second assignment unit assigning the second timestamp to the second compressed image data; and a recording unit recording, to the recording medium, (i) the first compressed image data assigned with the first timestamp and (ii) the second compressed image data assigned with the second timestamp.

Image recording device, image reproducing device, recording medium, and image recording method for capturing images at different frames rates and generating timestamps for presentation

An image coding apparatus executes intra-frame prediction with a predetermined intra-frame prediction mode for a certain block. A block selection unit judges that the current block to be coded is a prediction error calculation block or a non-prediction error calculation block. In the case where the current block is a prediction error calculation block, a mode error value calculation unit calculates the prediction error by the sum of absolute differences and for all of the intra-frame prediction modes, an inter-mode comparison unit compares the prediction errors, and as a result of the comparison, an intra-frame prediction mode having the minimum prediction errors is determined as the intra-frame prediction mode. In the case where the current block is a non-prediction error calculation block, the prediction error is not calculated. As an alternative, a prediction mode estimation unit determines the intra-frame prediction mode based on the neighboring prediction mode information stored in a storage unit.

Image coding apparatus and image coding method

The present invention provides a video encoding device in which a capacity of a binary data storing unit is small, a size of the video encoding device is small, a video signal can be processed in real time, and reduction in quality of images generated from the eventually obtained data can be prevented. The video encoding device according to the present invention includes: a video encoding unit which encodes a video signal; a binarization unit which binarizes an encoded value obtained from the video encoding unit; and an entropy encoding unit which subjects entropy encoding to binary data obtained from the binarization unit. Here, the video encoding unit encodes the video signal based on a characteristic of the binarization performed by the binarization unit, so that an amount of binary data obtained from the binarization unit by binarizing the encoded value that is encoded based on the characteristic is less than an amount of binary data obtained by binarizing an encoded value that is encoded without being based on the characteristic.

Video encoding device

The coding apparatus according to the present invention is a coding apparatus which codes data regarding a moving picture, and includes: a DCT coefficient advanced-coding unit which performs advanced-coding on multivalued data representing a quantized DCT coefficient or a motion vector, so as to reduce the bit length of binary data obtained by binarizing the multivalued data; an advanced-coded coefficient/binary coefficient conversion unit which converts the advanced-coded data obtained by the DCT coefficient advanced-coding unit into the binary data; and an arithmetic coding unit which performs arithmetic coding on the binary data obtained by the advanced-coded coefficient/binary coefficient conversion unit.

Coding apparatus and decoding apparatus

The arithmetic processing apparatus of the present invention is an arithmetic processing apparatus that can be reconfigured in accordance with a processing mode and has a plurality of arranged unit arithmetic circuits. Each unit arithmetic circuit includes at least one input terminal, at least one output terminal, a first register which holds data, an adder which calculates a sum of two pieces of data, a second register which holds data, a bit shifter which shifts data left or right, a subtractor which calculates a difference between two pieces of data, an absolute value calculating unit which calculates an absolute value of data, and a path setting unit which sets a path according to the processing mode connecting among these circuit elements.

Arithmetic processing apparatus

A transmission apparatus for video information is disclosed. The apparatus has an input part for inputting video; a level information generation part for generating level information of each pixel on a screen; a memory part for storing the level information of each pixel in the entire region of the screen; a region extraction part for extracting a changed region which is a region on the screen including pixels related to the video information; an update region level information generation part for generating level information of each pixel in the changed region; a compression part for compressing the information amount of level information of each pixel in the changed region; and a communication part for transmitting position information of the changed region and the compressed level information.

Growing community of inventors

Osaka, Japan

Takashi Masuno