Abstract: 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: T=d/(1+d) R=1?T where T (0?T?1) is a transmittance of the beam splitter, R (0?R?1) is a reflectance of the beam splitter, and d (0?d?1) is a reflectance of the reflecting member.

Abstract: A first camera for capturing an image of a subject, a second camera for capturing an image of a subject, an optical component disposed on an optical path when the first camera images a subject, and on an optical path when the second camera images a subject, and an adjuster for adjusting a distance between an optical axis of the first camera and an optical axis of the second camera by moving at least one of the first camera and the second camera horizontally are included. The adjuster can move at least one of the first camera and the second camera horizontally in a wider range when a zoom ratio of the first camera and the second camera is a first ratio than when the zoom ratio is a second ratio that is lower than the first ratio.

Abstract: 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: T=d/(1+d) R=1?T where T (0?T?1) is a transmittance of the beam splitter, R (0?R?1) is a reflectance of the beam splitter, and d (0?d?1) is a reflectance of the reflecting member.

Abstract: 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.

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 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.

Abstract: To provide an intra prediction apparatus which can circumvent a hazard problem and improve the time reduction effect. An intra prediction apparatus 11 performs 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 apparatus 11 includes: an intra prediction unit (a prediction unit 113, an orthogonal transform and quantization unit 115, an inverse orthogonal transform and inverse quantization unit 116, and an adder 117) which performs the intra predictions; and a control unit 119 which controls the intra prediction unit to perform in parallel the intra prediction of the macroblock and the intra predictions of the respective pixel blocks.

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 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: 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: 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: 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: 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: 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 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.

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: 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: 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: 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: 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.