Nec Corporation

Nec Platforms, Ltd.

Ryo Yamakabe

Yuka Ogino

Ryuichi Akashi

Keiichi Chono

Masato Tsukada

Chisato Funayama

Takahiro Toizumi

Kosuke Yoshimi

Ryoma Oami

Toshinobu Ogatsu

Toshiyuki Sashihara

Takamichi Miyamoto

Daisuke Shimada

An illumination control apparatuscomprises: a detection unitthat detects an iris area IA and a reflection area RA in an eye image IMG_E generated by imaging eyes of a target being illuminated with illumination light IL from an illumination apparatus, the iris area IA and the reflection area RA corresponding to an iris of the eyes and a reflection image of the illumination light respectively; and an illumination control unitthat controls the illumination apparatus based on an overlap state between the iris area and the reflection area.

Controlling illumination apparatus based on overlap state between iris area and reflection area

An imaging apparatus for authentication includes: a first imaging unit that obtains a first image used in a first authentication process by imaging a target person; a second imaging unit that obtains a second image used in a second image process by imaging the target person in an imaging range narrower than that of the first imaging unit; a drive unit that integrally drives the first imaging unit and the second imaging unit; and a drive control unit that controls the drive unit on the basis of the first image.

Imaging apparatus for authentication and authentication system

An information processing system () comprises: a distance acquisition unit () that specifies an iris area containing an iris of a target from a visible-light image of the target, and acquires an iris distance that is a distance to the iris area; an iris image acquisition unit () that acquires an iris image of the target by changing a focal length according to the iris distance; a score computing unit () that calculates a score relating to deviation of a focus in the iris image, based on the iris image; and a correlation update unit () that updates correlation between the iris distance and the focal length at a moment of acquisition of the iris image, based on the score. According to such an information processing system, since the correlation is updated with good accuracy, it is possible to acquire the appropriate iris image.

Information processing system, information processing apparatus, information processing method, and recording medium

The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.

Optical control apparatus and optical control method

An iris recognition apparatus for performing recognition of a target person based on an iris pattern of the target person, is provided with: an imaging device that performs an imaging processing for sequentially outputting imaged images while changing a focal position; and a determining device that starts a focusing determination for determining whether or not an image is a focused image before the imaging device completes the imaging processing.

Iris recognition apparatus, iris recognition method, computer program and recording medium

The image acquiring deviceincludes the voltage control unitwhich generates first voltage information that can identify voltage applied to the first variable-focus lensA included in the first imaging unitinstalled in a position where a subject can be photographed and whose focal length changes in accordance with an applied voltage, and generates second voltage information that can identify voltage applied to the second variable-focus lensA included in the second imaging unitinstalled in the position where the subject can be photographed and whose focal length changes in accordance with an applied voltage, and the image judgment unitwhich inputs images from the first imaging unitand the second imaging unit, and selects one image taken at an in-focus position among input images, wherein the voltage control unitgenerates information, as the first voltage information, that can identify each voltage in a time series of voltages whose values change with time, and generates information, as the second voltage information, that can identify that each of the voltages identified by the first voltage information is applied to the second variable-focus lensA after a predetermined period of delay.

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Tokyo, Japan

Ryo Yamakabe