Canon Kabushiki Kaisha

17live Japan Inc.

Ryo Mikami

Takeyuki Suda

Shinichi Isozaki

Yushi Oka

Hirotaka Seki

Kenichirou Haruta

Kaoru Hamada

Kazuhisa Koizumi

Tetsuhiro Yoshimoto

Masato Furukawa

Takaaki Doshida

Keisuke Kitajima

Hironobu Konno

Shinichi Ikoma

Ka Ho Fong

An information processing apparatus obtains reference image data used for printing of a printed material, and obtains an image quality inspection result obtained by comparing read image data obtained by reading the printed material and the reference image data. The information processing apparatus also displays, on a display unit, an inspection result screen in accordance with the inspection result. A first region for displaying an entire image corresponding to read image data for a predetermined page among pages read from printed material is included in the inspection result screen. Furthermore, the inspection result screen includes a second region in which a normal enlarged image obtained by enlarging a normal image based on reference image data and an abnormal enlarged image obtained by enlarging an abnormal image based on the read image data are displayed in association for each abnormal portion included in the entire image.

Information processing apparatus, control method thereof, storage medium, and image forming system

A server includes units for: relaying video data transmitted from a user terminal where the video data is generated to a user terminal where the video data is reproduced; upon reception of a first signal indicative that a first item has been used by a reproducing user while the video data is reproduced, changing a first indicator of a first team associated with the first item in a first direction; upon reception of a second signal indicative that a second item has been used by the reproducing user while the video data is reproduced, changing a second indicator of a second team associated with the second item in a second direction opposite to the first direction; and determining a winner and a loser upon satisfaction of a predetermined condition by at least one of the first indicator of the first team or the second indicator of the second team.

Server, method and terminal

A terminal of a distributor of a live-stream, includes: one or more processors, and memory storing one or more computer programs configured to be executed by the one or more processors. The one or more computer programs includes instructions for: transmitting video data related to the live-stream from a server over a network, accepting input by the distributor when a gift is used for the distributor, the input being related to the used gift; and displaying, on a display, a result of determining whether to award electronic value to the distributor and/or an amount of the electronic value awarded to the distributor. The determination depends on the content of the accepted input.

Terminal, method, and server

An image-forming unit forms a referential image on a first sheet. A reading unit reads the referential image on the first sheet to generate referential read image data. A calibration unit calibrates input image data using calibration parameters derived based on the referential read image data. The image-forming unit forms a target image on a second sheet based on the calibrated data. The reading unit reads the target image on the second sheet to generate read image data for inspection. An inspection unit inspects quality of the target image based on comparison between the input image data and the read image data for inspection. The calibration parameters are derived based on the referential read image data to which flare correction has been applied. The inspection unit compares the input image data with the corrected read image data.

Inspection apparatus, method, and storage medium, that correct reference image and inspect printed material based on the corrected reference image

An image forming unit forms test images of a color of the same type as a first color using toner of a second color and toner of a third color, transfers first and second test images, fixes the test images on a sheet, controls a sensor to read the test images, determines sampling timings for the test images based on an output signal related to the first test image outputted from the sensor using a color filter of a fourth color, acquires a result of reading the test images based on a reading result of the test images on the sheet by the color sensor using a color filter of the first color and the sampling timing, and determines a transfer voltage based on the result of reading the test images.

Image forming apparatus for controlling transfer voltage based on pattern

There is provided a reading apparatus that includes a conveyance roller, a light source, a light transmission member, a line sensor having a plurality of pixels and configured to receive reflected light from a sheet via the light transmission member while the sheet is conveyed by the conveyance roller, and a controller. The controller is configured to perform acquiring an output value of a first pixel, an output value of a second pixel, and an output value of a third pixel, determine a first value based on the output value of the second pixel and a first coefficient, determine a second value based on the output value of the third pixel and a second coefficient, and determine read data based on the output value of the first pixel, the first value, and the second value. The first coefficient is larger than the second coefficient.

Reading apparatus

An image reading apparatus includes a reading unit having a plurality of light receiving elements arranged in a main scanning direction and configured to read an original placed on an original platen, a moving portion configured to move the reading unit in a sub-scanning direction, an edge extractor configured to extract original edges from image data of an original pressure plate and the original read by the reading unit, a determiner configured to determine, from the original edges, an angle of an original leading edge with respect to the main scanning direction and position information of one end of the original leading edge, a controller configured to terminate a movement of the reading unit when an original trailing edge end point is extracted from the original edges, and a rotation correction unit configured to correct a rotation of the image data based on the angle and the position information.

Image reading apparatus

Provided is an image reading apparatus for suppressing an image defect ascribable to shading correction using a white reference plate arranged at a position different from a reading position of an original. The image reading apparatus includes a reading unit configured to read an image from the original passing through the reading position, the white reference plate arranged such that a distance between the reading unit and the white reference plate is larger than the distance between the reading unit and the reading position, and a control system. The control system includes a memory for backup configured to store in advance correlation data representing a correlation between a reading result of the white reference plate obtained by the reading unit, and a reading result of a reference member having a uniform density and arranged at the reading position.

Image reading apparatus with shading correction

An original reading apparatus including: a light source configured to illuminate an original; a line image sensor configured to convert light reflected from the original into an analog output signal; an AD converter configured to convert the analog output signal output from the line image sensor into a digital output signal; a control device configured to control the line image sensor and the AD converter; and a variable gain amplifier provided inside the line image sensor, for adjusting a signal range of the analog output signal.

Original reading apparatus with variable gain amplification

An image reading apparatus includes: a light source to illuminate an original; a color sensor and a monochrome sensor to receive light reflected from the original illuminated by the light source to output an image signal; an amplifier to amplify the image signal from the color and monochrome sensors; a reflective reference member; and a control circuit to adjust a gain of the amplifier amplifying the image signal from the color sensor that receives light reflected from the reflective member illuminated by the light source, and holds the adjusted gain as a gain setting value for the color sensor, and the control circuit obtains a gain setting value for the monochrome sensor by calculation based on the gain setting value for the color sensor.

A correction value determination unit determines a light quantity correction value for each main scanning position of each original based on a reading value obtained by an image reading unit reading a reference member. An anomaly detection unit detects, based on the light quantity correction value with respect to the preceding original and the light quantity correction value with respect to the succeeding original, an anomaly in the correction value, and specifies a main scanning position at which the anomaly occurs. A modification unit modifies a reading value at the main scanning position at which the anomaly occurs, out of reading values obtained from the reference member with respect to the succeeding original, or a correction value for the main scanning position at which the anomaly occurs, out of light quantity correction values with respect to the succeeding original.

Image reading apparatus with function of correcting for variation of light distribution

An image reading apparatus, which reads an image on an original, including: a light source extending along a main scanning direction to illuminate the original; a plurality of line sensors configured to receive light reflected from the original and to output light intensity signals; a storage unit configured to store reference data; and a determination unit configured to obtain determination data regarding hue based on a light intensity signal output from one of the plurality of line sensors that receive light reflected from a reflective reference member illuminated by the light source and a light intensity signal output from another of the plurality of line sensors that receive light reflected from the reflective reference member illuminated by the light source and to determine a hue balance of the light source based on the determination data and the reference data stored in the storage unit.

An exposure apparatus has a first board on which a light-emitting element is mounted and a second board on which is mounted a driving IC for causing the light-emitting element to emit light. A second current path is extended from the driving IC, which is mounted on the second board, to the first board. The second current path is arranged so as to be adjacent to a first current path.

Growing community of inventors

Tokyo, Japan

Ryo Mikami