Canon Kabushiki Kaisha

Ajinomoto Co., Ltd.

Yumiko Uchida

Kunisuke Izawa

Hiroshi Shiragami

Hirotaka Shiiyama

Satoshi Takamatsu

Yusuke Mitarai

Satoshi Katayama

Yoshihito Koguchi

Keizo Yamashita

This invention provides an object tracing apparatus that traces an object in a video obtained by an image capturing apparatus, comprising a tracking unit that tracks the object in a frame in the video and obtains track data indicating consecutive appearances of the object, and a tracing unit that generates trace information indicating which object ID each track ID belongs to, by associating a track ID obtained via tracking by the tracking unit with an object ID for uniquely identifying an object, wherein the tracing unit, on a basis of a coexistence possibility relating to imaging time between a track ID associated with one or more existing object IDs and target track data without an associated object ID, determines which object ID the target track data belongs to.

Object tracing apparatus, method for same, and non-transitory computer-readable storage medium

An image processing apparatus performs an inspection on an assembly component with use of one or more images of an assembling work, and includes a work determination unit configured to determine, from the one or more images, one or both of a start frame and an end frame of assembling work captured at a change point of the assembling work, a selection unit configured to select frames to be inspected from the one or more images based on a result of the determination by the work determination unit, and an inspection unit configured to perform an inspection on the frames selected by the selection unit.

Image processing apparatus, image processing method, and storage medium

An information processing apparatus generates authentication data that can be used for authentication of a first object that is included in a captured image captured by a first image capturing apparatus and has been authenticated by a first authentication apparatus corresponding to the first image capturing apparatus; and causes the authentication data to be reflected to an authentication database (DB) of at least one authentication apparatus included in a plurality of authentication apparatuses. The apparatus generates second authentication data corresponding to a second capturing condition differing from a first capturing condition corresponding to first authentication data that is included in the authentication DB of the first authentication apparatus and was used when authenticating the first object.

Information processing apparatus, authentication system, method of controlling same, and medium

A display apparatus includes a display unit configured to display in a plurality of display areas the video images of a first group out of the plurality of the video images input by the input unit and then to switch them to video images of a second group out of the plurality of the video images to produce display in a plurality of the display areas, a detection unit configured to detect objects in each video image, and a control unit configured to, in a case where the number of the objects detected in respective video images of the first group by the detection unit is equal to or greater than a first predetermined number, control the display unit to make the display time of the video image of the first group longer than a predetermined display time for displaying other video images of the first group.

Display apparatus, display method, and storage medium

An image processing apparatus connectable to a terminal which captures an image includes an acquisition unit configured to acquire augmented information and attribute information from feature information extracted from a captured image, a processing unit configured to generate, if a plurality of pieces of the feature information is extracted, at least one piece of new augmented information by using a plurality of pieces of the augmented information acquired by the acquisition unit, based on the attribute information, and a transmission unit configured to transmit the new augmented information generated by the processing unit to the terminal.

Image processing apparatus, image processing method, image processing system, and storage medium storing program

A process for preparing 7-benzylpurine derivatives is provided. An acetylpurine nucleoside is reacted with a benzyl halide to benzylate the 7-position of the purine base, and an acid is then added to the reaction mixture to hydrolyze the glycoside bond. The 7-benzylpurines may be used to prepare 9-substituted purine derivatives.

Process for producing purine derivatives

Herein is disclosed a novel and industrially advantageous process for synthesizing acyclic nucleosides such as acyclovir and ganciclovir from ribonucleosides, which process comprises adding an acid catalyst and an acid anhydride to a solution of a ribonucleoside such as guanosine and an ester derivative of an acyclic sugar, and heating the mixture, whereby a transglycosilation reaction takes place between the ribose moiety of the ribonucleoside and the ester derivative of the acyclic sugar. Herein is also disclosed an industrially favorable method for the separation of 9-substituted purine nucleosides which are important intermediates for the synthesis of acyclic nucleosides such as acyclovir, ganciclovir, and the like from ribonucleosides, which method comprises crystallizing only the 9-isomer from a solution or suspension containing both a 9-substituted purine nucleoside and a 7-substituted purine nucleoside by cooling the solution or/and by adding a crystallizing solvent thereto.

Process for isomerizing acyclic nucleosides and process for separating

Nucleoside derivatives such as 2'-deoxy-2'-bromo-5'-O-acetyl-5-methyluridine, etc., are important intermediates which can be converted into nucleoside derivatives, such as 3'-azido-3'-deoxythymidine, etc., which are useful as medicines.

Pyrimidine nucleoside derivatives and methods for producing them

A process for preparing a 2', 3'-dideoxy-2',3'-didehydropyrimidine nucleoside comprising reacting the pyrimidine ribofuranoside with a trialkyl orthoester to yield the 2',3'-O-alkoxyethylidene derivative; which is reacted with hydrogen bromide in acetic acid or acetyl bromide to yield the 2-deoxy-2'-bromo-3'-acetyl-pyrimidine nucleoside; which is then reduced with zinc to yield the 2',3'-olefin of the pyrimidine nucleoside.

Growing community of inventors

Kawasaki, Japan

Yumiko Uchida