Abstract: The present invention provides a content management device that enables to reproduce a content with original quality even after the content has been converted to have lower quality to be moved, and further enables to notify a user of information regarding the moved content. The content management device includes: a communication unit connected to a communication pathway and configured to output a copy of recorded content received via a communication pathway for storing on an external medium; a content control unit configured to control the output of the recorded content and disable the reproduction of the recorded content when the copy is output; and a content information output unit configured to output externally attribute information comprising at least reproduction status information.

Abstract: A stereo-image photographing apparatus enabling readily, short time-span realization of lens-barrel optical-axis adjustment in left- and right-eye imaging devices is afforded. The apparatus includes: a beam splitter having an incident surface of rectangular form, on which imaging light from a photographic subject is incident, an optically functional surface that reflects first imaging light, being a portion of incident imaging light, in a direction paralleling the shorter side of the rectangular form and that passes second imaging light being the remaining portion of the incident imaging light, a first light-exit surface through which the first imaging light exits, and a second light-exit surface through which the second imaging light exits; a first lens barrel directly facing the first light-exit surface; a second lens barrel directly facing the second light-exit surface; a first imaging device mounted on the first lens barrel; and a second imaging device mounted on the second lens barrel.

Abstract: Stereoscopic imaging device that can take stereo images with the parallax between the left and right eyes being accurately established is afforded. The stereoscopic imaging device (11) includes: an optical branching device having an incident surface (35), a beam-splitter part (33) that splits light from the incident surface into two directions, an extension part (36), and a reflection part (38) that reflects at least a portion of the light bent by the beam splitter part (33) and bends the reflected light in the y-axis positive direction; a first camera (31) that takes left-eye images; and a second camera (32) that takes right-eye images. The respective optical axes of the optical system of the first camera (31) and of the optical system of the second camera (32) are parallel to the y-axis.

Abstract: Afforded is an optical element holder allowing high-accuracy stereo images to be taken. The holder includes: a rectangular parallelepiped beam splitter (5) having a rectangular incident surface (12); a pair of mutually opposing holding members (8) into which end portions of the beam splitter along the x-axis are fitted; and a base portion (9) and screws (10) that press on the holding members (8), drawing them toward each other. Each of the holding members (8) has a flat surface portion covering a lateral surface of the beam splitter (5), 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 (12) of the beam splitter (5) overlap is greater than a width, in the same orientation, whereby the incident surface (12) and the peripheral wall portion overlap.

Abstract: A small-sized stereo-image taking apparatus that includes a small-sized beam splitter for splitting in two the imaging light from a photographic subject and that makes it possible to take both telephotographic-range and wide-angle-range images is afforded. The stereo-image taking apparatus includes: an optical element having an optically functional surface splitting in two the imaging light from a photographic subject; first and second telescopic lens barrels having telescoping functionality; first and second imaging devices mounted on the first and second telescopic lens barrels, for generating first and second images on the basis of first and second imaging light constructing images through the first and second telescopic lens barrels; and first and second moveable sections causing the first and second imaging devices to parallel-shift optical-axis-wise in accordance with extension/retraction of the first and second telescopic lens barrels.

Abstract: 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.

Abstract: An image playback device includes a playback portion which plays back content data to make a video stereoscopically viewed by means of video data including first and second images for first and second view points, respectively; a setting portion which sets a playback speed for playing back the content data; and an adjuster which adjusts parallax information about parallax between the first and second images in response to the playback speed set by the setting portion.

Abstract: 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 t

Abstract: To provide a recording and reproducing apparatus that recovers contents having approximately the same quality as the original contents in a short time and requiring only light processing load, at the time of (a) moving the contents from the first recording medium to the second recording medium, (b) rewriting the contents in order to disable reproduction of the contents, (c) reconstructing the original contents by recovering the contents from the second recording medium to the first recording medium. The recording and reproducing apparatus includes a move processing unit 72a and a recovery processing unit 73a. The former records reconstruction information on the second recording medium in association with the second contents, the reconstruction information being used in reconstructing one or more parts of the contents that have been rewritten in order to disable reproduction of the contents at the time of moving the contents.

Abstract: To provide a code amount estimating device which can perform, at high speed and with high precision, estimation of code amount obtained after arithmetic coding. The code amount estimating device includes a context index calculation unit which calculates a context index of a binary symbol included in binary data, and an estimate code amount calculation unit which calculates an estimate code amount for the binary data based on symbol occurrence probability information stored in association with the calculated context index and on a held probability interval range. The estimate code amount calculation unit estimates the code amount for the binary data according to code amount information indicating an association between (i) a combination of a binary symbol string including one or more binary symbols, symbol occurrence probability information, and a probability interval range and (ii) an estimate code amount for the binary symbol string.

Abstract: Reproduction of a plurality of coded streams is switched smoothly without a large processing capability. A coded stream reproduction device (100) which reproduces one of a plurality of coded streams includes: an output selecting unit (109) which selects one of the coded streams; a data reading unit (102) which reads a first coded stream selected and a second coded stream not selected; a decoding unit (104) which decodes a first coded picture included in the first coded stream; and a corresponding data detecting unit (103) which detects a second coded picture from the second coded stream based on time information indicating a display time of the first decoded picture, the second coded picture being used for temporally-smooth switching of a display from the first coded stream to the second coded stream. The decoding unit (104) further decodes at least one of (i) the detected second coded picture, and (ii) a third coded picture to be referred to when decoding the second coded picture.

Abstract: An image recording device (100) which records an input image includes an image generating unit (120) which generates the input image based on input electric signal, an image transforming unit (130) which generates a group of first frames which can be independently reproduced, by extracting frames at a predetermined time interval from frames included in the input image generated by the image generating unit (120) and by arranging, in chronological order, the extracted frames, and to generate a group of second frames using frames that are not in the group of first frames but are in the frames included in the input image, an image coding unit (140) which (i) codes the group of first frames generated by the image transforming unit (130) and outputs a first stream, and (ii) codes the group of second frames generated by the image transforming unit (130) and outputs a second stream, and a recording unit (150) which records the first stream and the second stream coded by the image coding unit (140) on a recording med

Abstract: 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.

Abstract: 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 (100) which codes a plurality of pictures obtained by capturing an object, the moving picture coding device including: a luminance information acquisition unit (121) which acquires luminance information which indicates a luminance level of light in an environment where the object is captured; and a coding unit (106) 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.

Abstract: A transcoder reducing 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 (100) 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 (100) includes: a decoding unit (200) that decodes the first coded stream to generate decoded image data; a prediction mode obtaining unit (101) that obtains a prediction mode of intra prediction applied in decoding; a coding unit (300) that codes the decoded image data by applying the intra prediction or inter prediction to generate the second coded stream; and a control unit (103) that controls a coding unit (300) so that the coding unit (300) uses the prediction mode obtained by the prediction mode obtaining unit (101) when the coding unit (300) applies intra prediction.

Abstract: A picture coding apparatus includes a static area information calculating unit that calculates static area information indicating a size of a static area of which motion is smaller than a predetermined value for each of fields included in an interlaced picture, a reference field selecting unit that selects, as a reference field to be used to predict a field to be coded, one of a field having of the same parity as a field to be coded and a field having the opposite parity of the field to be coded, among fields previously coded, based on the static area information of the fields previously coded, and a coding unit that codes the field to be coded by using the reference field selected by the reference field selecting unit.

Abstract: 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.

Abstract: A device coding a moving picture in units of a group including pictures, including: a generation unit generating quantization matrices; a selection unit selecting a quantization matrix for a current picture; a unit storing the quantization matrices in a header part of the group, and coding the current picture; a unit including a virtual buffer, and performing buffer simulation based on an amount of bits to be outputted; and a unit determining whether bit amount reducing is required for the current picture, based on a result of the buffer simulation, wherein the generation unit generates a normal quantization matrix used in common for at least one of the pictures, and a quantization matrix for bit amount reducing used only when the bit amount reducing is required, and the selection unit selecting the quantization matrix for bit amount reducing used for the current picture, when the bit amount reducing is required.

Abstract: An image recording device (100), which can suppress, without causing significant image degradation, image transfer speed from an imaging device, coding speed, and image recording speed that are necessary for high-speed image capturing, includes: an image signal processing unit (102) which sequentially reads, at a frame rate for high-speed image capturing, images generated through image capturing by an imaging unit (101), and outputs, from among the images sequentially read, images read at a frame rate for normal image capturing at high resolution and other images at low resolution; an image coding unit (103) which generates a high resolution coded stream by coding an image sequence made up of the high resolution images outputted by the image signal processing unit (102); a low-resolution image coding unit (104) which generates a low resolution coded stream by coding an image sequence made up of the other low resolution images outputted by the image signal processing unit (102); and a recording processing unit

Abstract: 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.