Jfe Steel Corporation

Nkk Corporation

Preferred Networks, Inc.

Other

Sony Corporation

Hiroharu Kato

Akio Nagamune

Eiichi Matsumoto

Hironori Yoshida

Takahiro Koshihara

Yuki Yamamoto

Toru Chinen

Masayuki Nishiguchi

Shiro Suzuki

Mitsuyuki Hatanaka

Toshito Takamiya

Kiyotaka Imai

Kaneaki Fujishita

Tadaaki Hattori

Ryuichi Namba

Yoshihiro Murakami

Kenichi Iwanaga

Toshio Maetani

Junichi Yotsuji

Katsuyuki Nishifuji

Kozo Maeda

Mitsutoshi Miura

A system used for generating a three-dimensional representation from one or more two-dimensional images includes a plurality of imaging devices arranged to image a real object whose three-dimensional representation is to be generated; and a marker utilized in calculating a pose of the imaging device, the pose being utilized in generating the three-dimensional representation of the real object. At least one of the plurality of imaging devices is arranged to image the real object and the marker from below to obtain a two-dimensional image including the real object and the marker.

Method of generating three-dimensional model, training data, machine learning model, and system

A method of generating a three-dimensional model of an object, is executed by a processor. The method includes executing rendering of the three-dimensional model of the object based on an image captured by the imaging device; and modifying the three-dimensional model.

The information processing device includes: a feature amount extraction unit configured to extract a feature amount from sounds in a predetermined space; an identification unit configured to identify a type of a sound included in the sounds from the feature amount; an information combining unit configured to generate sound statistic information in which the feature amount, the type of the sound, and spatiotemporal information of the predetermined space at a time of acquisition of the sound are associated with each other; and a database establishing unit configured to establish a sound statistic database by using the sound statistic information.

Information processing device and information processing method

A method for measuring an apparent density of a metal powder includes holding a metal powder in a vessel, applying an alternating magnetic flux to the metal powder using an exciting coil disposed outside the vessel, detecting the alternating magnetic flux passed through the metal powder using a search coil disposed outside the vessel, and determining an apparent density of the metal powder from an amplitude of the detected alternating magnetic flux using a calibration curve representing a correlation between the apparent density of the metal powder and the amplitude of an alternating magnetic flux prepared in advance. The method enables to measure the apparent density of a metal powder with a high precision in an on-line and non-contact manner without stopping a process of producing a mixed powder or a process of producing a powder compact.

Method and apparatus for measuring apparent density of metal powder, method and apparatus for producing mixed powder, and method and apparatus for producing powder compact

An apparatus for detecting periodic defects includes a sensor that obtains signals to evaluate properties of an area having a length longer than an expected defect period; a small area selector that separates small areas whose area length is shorter than that of the area so that all adjacent distance intervals are equal in a periodic defect arrangement direction, and selecting signals corresponding to the positions of the plurality of small areas from outputs from the sensor; an evaluation index calculator that calculates a similarity evaluation index between signal patterns among signals selected by the small area selector; a set value changer that changes the positions of the small areas and the distance interval, and repeating computational processings of the small area selector and the evaluation index calculator; and a period judgment device that judges the distance interval as a period when the evaluation index is higher than a value.

Apparatus for detecting periodic defect and method therefor

A magnetism measuring method includes magnetizing a magnetic material with a direct current to a rotational magnetization region, performing an alternate current excitation in a direction having a component orthogonal to a direction of the direct current magnetization, and measuring a component of an alternate current magnetic field generated by an interaction with the magnetic material in a direction orthogonal to the direction of the direct current magnetization.

Magnetism measuring method and device

A detection method for detecting a concavo-convex shape surface defect existing on a ferromagnetic metal object including sensing a signal attributed to strain of the concavo-convex shape surface defect having a size in a range of 0.5 to 6 &#x3bc;m. The signal is magnetic flux leaking from the ferromagnetic metal to which magnetic flux is applied. A detecting apparatus incorporates a magnetizer for magnetizing a ferromagnetic metal and a plurality of magnetic sensors arranged in the direction perpendicular to a traveling direction of the ferromagnetic metal to sense a signal attributed to strain of a concavo-convex shape surface defect having a size in a range of 0.5 to 6 &#x3bc;m.

Method and apparatus for detecting concavo-convex shape surface defects

Magnetic flaw detection apparatus using an E-shaped magnetic sensor and

The plating amount and composition of a plated steel plate are measured by determining a theoretical relation for an intensity at two different light-receiving angles of K-series fluorescent X-rays of analysis target elements reflected by the plate when monochromatized X-rays are radiated onto the plate at two incident angles, measuring a fluorescent X-ray intensity by using standard samples having known plating amounts and compositions, under the same conditions as for obtaining the theoretical relation, and calculating a conversion coefficient for converting the measured value into a theoretical value by the theoretical relation, measuring a fluorescent X-ray intensity obtained from a plated steel plate to be measured having unknown plating amount and composition under the same conditions for obtaining the theoretical relation, and converting the measured fluorescent X-ray intensity into a theoretical intensity by using the conversion coefficient, and calculating a plating amount and composition as parameters in the theoretical relation, which minimize a difference between the theoretical intensity obtained by the theoretical relation and the converted theoretical intensity, as a plating amount and composition of the plate to be measured.

Method of measuring plating amount and plating film composition of

A low-resistant hydrofoil comprises at least one concave step arranged backwardly in the direction of a chord of blade of the hydrofoil in parallel with the leading edge of the hydrofoil to form a lamellar cavitation layer on the negative pressure surface of the hydrofoil moving under water. The concave step has depth .DELTA.t and .DELTA.t/C is more than 0.001 and less than 0.01, being a chord length. The concave step is 0&lt;x.sub.1 /C&lt;0.1, x.sub.1 being a distance from the leading edge of said hydrofoil and C being a chord length.

Low-resistance hydrofoil

Growing community of inventors

Tokyo, Japan

Hiroharu Kato