Hitachi-lg Data Storage, Inc.

Katsuhiko Izumi

Toshimasa Kamisada

Naoya Matsuura

A three-dimensional distance measurement device includes a light emitting unit that irradiates a subject with light; a light receiving unit that detects reflected light from the subject; a distance calculation unit that calculates a three-dimensional distance to the subject on the basis of a transmission time of the detected reflected light; an image processing unit that generates a distance image of the subject on the basis of the calculated distance data; and a distance mode selection processing unit that selects a predetermined distance mode from a plurality of distance modes having different measurable distance ranges and sets a driving condition of the light emitting unit. By selecting a first distance mode in a first frame and selecting a second distance mode in a second frame, and by combining the distance data acquired in the respective frames, three-dimensional distance data of a frame to be output is generated.

Three-dimensional distance measurement device

A distance measurement apparatusincludes a light emitting unitthat irradiates a subject with a light-source light from a light source, a light receiving unitthat receives a reflected light from the subject, a distance calculation unitthat calculates a distance to the subject based on a time difference from the irradiation of the light-source light to the reception of the reflected light; and an image processing unitthat generates a distance image of the subject based on the calculated distance. Further, the apparatus includes a first rotation mechanismthat adjusts an irradiation angle of the light emitting unit and a second rotation mechanismthat adjusts a light receiving angle of the light receiving unit, in which the angles of the light emitting unit and the light receiving unit may be adjusted independently of each other.

Distance measurement apparatus and angle adjustment method of the same

A three-dimensional distance measurement apparatus include: a plurality of light sourcesthat irradiate light onto the subject; a light emission control unitthat controls light emission from a plurality of light sources; a light-receiving unitthat detects reflection light from the subject; a distance-calculating unitthat calculates a distance to the subject on the basis of a transmission time of reflection light; and an image processing unitthat creates a distance image of the subject on the basis of calculated distance data. The plurality of irradiation areasonto which light from the light sources are irradiated are arranged to partially overlap only with the neighboring ones. The light emission control unitindividually turns on or off the light sourcesor individually adjusts the emitted light amounts.

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Tokyo, Japan

Katsuhiko Izumi