Abstract: A display device displays video for a virtual image. The display device includes a video generation unit generates image light representing the video, a concave mirror has a reflective surface on which the image light is reflected, and a support mechanism adjusts a position of the concave mirror. The concave mirror has, in each position on the reflective surface, a first radius of curvature in the first direction and a second radius of curvature in a second direction. The first radius of curvature and the second radius of curvature individually change and have different rates of change. The reflective surface has a shape following a partial region on an outer surface of an ellipsoid. The ellipsoid has a radius along the first direction that is greater than a radius along the second direction and a radius along a third direction orthogonal to the first direction and the second direction.

Abstract: A three-dimensional information reconstraction device includes a corresponding point detector that detects a plurality of corresponding point pairs to which a first feature point included in a first image captured by a first image capturing device and a second feature point included in a second image captured by a second image capturing device correspond, and a three-dimensional coordinate deriver that, based on the plurality of corresponding point pairs, reconstructs three-dimensional coordinates to which the first feature point is inverse-projected.

Abstract: The information presentation device has an image acquisition unit, a parameter deriving unit, an abnormality detection unit, and the presentation unit. The image acquisition unit acquires a first image which is captured by a first imaging device and a second image which is captured by a second imaging device. The parameter deriving unit derives parameters for deriving three-dimensional coordinates from the first image and the second image. The abnormality detection unit determines presence or absence of an abnormality in a relative positional relationship or a relative relationship of pose between the first imaging device and the second imaging device according to the derived parameters. In a case where an abnormality is determined, the presentation unit presents warning information including an instruction that there is an abnormality.

Abstract: The display device has a microdisplay, a mirror, and a three-dimensional renderer. The microdisplay has a display surface. A width of the display surface is narrower than a pupil distance between user's right and left pupils. The microdisplay is disposed so that a center of the display surface is equally distant from the right and the left pupils, and the display surface is directed toward a line of sight of the user. The mirror is located at a position at which the display image displayed on the display surface has one-time reflection so that the user views the virtual image symmetrically curved. The three-dimensional renderer processes an input signal and generates the display image to be displayed on the display surface so that when the user views the virtual image, the user accepts the virtual image as if the virtual image is displayed on a three-dimensional surface surrounding the user.

Abstract: A display device displays video for a virtual image. The display device includes a video generation unit generates image light representing the video, a concave mirror has a reflective surface on which the image light is reflected, and a support mechanism adjusts a position of the concave mirror. The concave mirror has, in each position on the reflective surface, a first radius of curvature in the first direction and a second radius of curvature in a second direction. The first radius of curvature and the second radius of curvature individually change and have different rates of change. The reflective surface has a shape following a partial region on an outer surface of an ellipsoid. The ellipsoid has a radius along the first direction that is greater than a radius along the second direction and a radius along a third direction orthogonal to the first direction and the second direction.

Abstract: A three-dimensional information reconstraction device includes a corresponding point detector that detects a plurality of corresponding point pairs to which a first feature point included in a first image captured by a first image capturing device and a second feature point included in a second image captured by a second image capturing device correspond, and a three-dimensional coordinate deriver that, based on the plurality of corresponding point pairs, reconstructs three-dimensional coordinates to which the first feature point is inverse-projected.

Abstract: The information presentation device has an image acquisition unit, a parameter deriving unit, an abnormality detection unit, and the presentation unit. The image acquisition unit acquires a first image which is captured by a first imaging device and a second image which is captured by a second imaging device. The parameter deriving unit derives parameters for deriving three-dimensional coordinates from the first image and the second image. The abnormality detection unit determines presence or absence of an abnormality in a relative positional relationship or a relative relationship of pose between the first imaging device and the second imaging device according to the derived parameters. In a case where an abnormality is determined, the presentation unit presents warning information including an instruction that there is an abnormality.

Abstract: An image pickup device N according to an embodiment includes: an objective lens L with first and second regions D1, D2; an image sensor N with multiple groups of pixels Pg, in each of which first, second, third and fourth pixels P1 to P4 are arranged in two rows and two columns on an image capturing plane Ni; and an array of optical elements K which includes a plurality of optical elements M. The first and second pixels P1, P2 have a first spectral transmittance characteristic, and in each group of pixels Pg, the first and second pixels P1, P2 are arranged at mutually different positions in the second direction. Each of the plurality of optical elements M is arranged at such a position as to face groups of pixels Pg that are arranged in a row in the first direction among the multiple groups of pixels Pg.

Abstract: A personal authentication method capable of selecting types of biological information used for authentication flexibly depending on the user and the environment is provided. During registration, a plurality of types of biological information are acquired from the user, feature information is extracted from the acquired biological information, and authentication precision is estimated for each combination of pieces of feature information. During authentication, at least one type of biological information is acquired from the user, feature information is extracted from the acquired biological information, authentication is performed by comparing the acquired feature information with the feature information extracted from the biological information during registration, and operation of the user is controlled according to the authentication precision.

Abstract: During registration, an iris image taken is frequency-analyzed using a plurality of frequencies f1 to fn to generate features for the respective frequencies f1 to fn. During authentication, frequencies f2 to fn are selected from the frequencies f1 to fn for use in frequency analysis for authentication. An iris image of a person to be authenticated taken is frequency-analyzed using the selected frequencies f2 to fn to generate features for the respective frequencies f2 to fn. The generated features are compared with the features generated for the same frequencies during the registration to perform personal authentication.

Abstract: An information-added imaging method includes an imaging step, a receiving step of an imaging device (105) receiving information through a communication line (112), an adding step of adding additional information to picture data on the basis of the information, a displaying step of displaying, in the imaging device (105), picture data to which the additional information has been added while picture data is being captured, and a recording step of recording the picture data to which the additional information has been added.

Abstract: An apparatus for processing an image, containing the 3D positional information of an object, realizes highly user-friendly and entertaining functions. The object image is presented on a display panel. When the user specifies a point on the panel screen, a real size of the object at the specified point is obtained in accordance with the 3D positional information. Then, a scale image substantially representing the real size obtained is generated, combined with the object image and a synthesized image is presented. The user is allowed to freely change the direction or location of the scale image.

Abstract: An individual authentication information output apparatus, connectable to a plurality of information processing systems through a network, includes an input section for receiving an input from a user; an individual authentication section for outputting an individual authentication result of the user based on the input from the user; a specification section for specifying at least an information processing system selected by the user among the plurality of information processing systems; a database for managing individual authentication information in association with the individual authentication result provided by the individual authentication section and a specification result provided by the specification section; and a database access section for, based on the individual authentication result provided by the individual authentication section and the specification result provided by the specification section, reading the individual authentication information associated therewith, and outputting the read in

Abstract: The invention provides a range finder capable of carrying out three-dimensional measurement stably for a long period of time. A light pattern is projected on a subject by using a light source array unit in which a plurality of light sources, such as LEDs, are arranged. Even when each LED has a small light quantity, a sufficiently large quantity of light can be projected on the subject by the entire light source array unit, and hence, the three-dimensional measurement can be stably carried out. Also, a plurality of light patterns can be generated by electrically controlling a light emitting state of each LED of the light source array unit.

Abstract: A plurality of iris images of a person to be authenticated in which the positions of extraneous light reflection are respectively different are captured by using an image capturing device. Iris codes, that is, features for authentication, are respectively extracted from the plural iris images, and the plural iris codes thus extracted are respectively compared with a registered iris code, so as to generate a plurality of comparison results. The plural comparison results are integrated to obtain an ultimate comparison score, which is used for the authentication.

Abstract: The position of an eye is detectable with high precision from a face image of a person taken under near infrared illumination or the like. After pre-processing, the face image is subjected to brightness correction to increase the contrast between the sclera portion and iris portion of the eye. Brightness gradient vectors are calculated for the brightness-corrected image, and matching is performed between a brightness gradient image generated using the calculated brightness gradient vectors and an eye template. Further, matching with a pupil template is performed to correct the eye center position. Final positions of both eyes are then determined.

Abstract: During registration, an iris image taken is frequency-analyzed using a plurality of frequencies f1 to fn to generate features for the respective frequencies f1 to fn. During authentication, frequencies f2 to fn are selected from the frequencies f1 to fn for use in frequency analysis for authentication. An iris image of a person to be authenticated taken is frequency-analyzed using the selected frequencies f2 to fn to generate features for the respective frequencies f2 to fn. The generated features are compared with the features generated for the same frequencies during the registration to perform personal authentication.

Abstract: During registration, an iris image taken is frequency-analyzed using a plurality of frequencies f1 to fn to generate features for the respective frequencies f1 to fn. During authentication, frequencies f2 to fn are selected from the frequencies f1 to fn for use in frequency analysis for authentication. An iris image of a person to be authenticated taken is frequency-analyzed using the selected frequencies f2 to fn to generate features for the respective frequencies f2 to fn. The generated features are compared with the features generated for the same frequencies during the registration to perform personal authentication.

Abstract: When a user wears a headset (12), a small display (107) is provided in front of an eye of the user. A main component (11) communicates with an external device to receive information, such as an electronic mail. The main component (11) extracts a portion of the received information, e.g., data about a sender, and transmits the extracted portion to a headset (12). The headset (12) displays the received information on the small display (107).

Abstract: Provided are a depth image obtaining section that obtains a depth image from the same viewpoint as in the input image, a layer section that separates the input image into a foreground image and a background image as layered images using depth information of the depth image, a coding section that encodes the foreground image, a background sprite generating section that generates a background sprite image from the background image, and a sprite coding section that encodes the background sprite image. The depth image from the same viewpoint as in the input image is obtained in the depth image obtaining section, the input image is separated into a foreground image and a background image as layered images using the depth information, and based on the separated background image, a background sprite image is generated.

Abstract: A pulp dewatering apparatus is constructed of two press rolls arranged juxtaposed to define a nip region. At least one of the press rolls is constructed of a perforated metal outer shell surrounding a substantially rigid inner roll body. A layer of elastic material is disposed between the rigid roll body and the perforated metal shell to provide a resilient member. As a result of the elastic material, this press roll will deform during the dewatering operation to provide an extended nip region of about 3 to 5% of the overall press roll diameter.