Abstract: A photoelectric conversion device according to an embodiment of the present disclosure includes a calculation unit configured to calculate an initial value of each of a plurality of first correction components based on a first pixel value read out from the first region, update each of the plurality of the first correction components based on a second pixel value read out from the second region and a predetermined second correction component, and calculate the correction value using the updated first correction component and the second correction component.

Abstract: A photoelectric conversion device includes a pixel array including at least one pixel region for which an exposure time is set, the at least one pixel region including a plurality of counting pixels each to output a pixel signal corresponding to a counted value of the number of photons incident during a given exposure time, and a control unit to control the exposure time of the pixel array. The at least one pixel region includes a detection unit to detect an event indicating a change in the pixel signals, and a selection unit to select one of the counting pixels included in the at least one pixel region as a first counting pixel connected to the detection unit. In a case where the event is detected, the control unit determines a length of the exposure time of the at least one pixel region.

Abstract: A conversion apparatus includes a pixel array unit in which a plurality of first pixels that generates gradation signals indicating amounts of incident light and a plurality of second pixels that generates event signals are two-dimensionally disposed, a reading unit configured to read the gradation signals and the event signals from the pixel array unit, and a control unit configured to change an output data rate of the gradation signals and an output data rate of the event signals, wherein a first pattern for outputting the gradation signals at a first output data rate and outputting the event signals at a second output data rate and a second pattern for outputting the gradation signals at a third output data rate different from the first output data rate and outputting the event signals at a fourth output data rate different from the second output data rate are switched.

Abstract: An apparatus includes a detection unit that includes a plurality of pixels for acquiring a plurality of pixel values based on amounts of light incident on the plurality of pixels and is configured to detect a difference between the plurality of pixel values, and a control unit configured to control the detection unit. To detect a movement of a subject, the control unit causes the detection unit to perform a first difference detection operation of detecting a difference between a plurality of pixel values of a pixel and a second difference detection operation of detecting a difference between the plurality of pixel values of the plurality of pixels.

Abstract: An image recognition apparatus includes an event data obtaining member, a metadata obtaining member, and a processing member. The event data obtaining member is configured to obtain event data that indicates changes in light amounts of pixels of a sensor. The metadata obtaining member is configured to obtain metadata related to a position of a target object. The processing member is configured to perform, using the event data, processing for recognizing the target object using an algorithm that is based on a spiking neural network. The processing member controls a period for referring to the event data in the recognition processing, based on the obtained metadata.

Abstract: A processing device includes a first obtaining circuit configured to obtain first frame data that is frame data of an image of an object at a predetermined interval; a second obtaining circuit configured to obtain event data that is obtainable at an interval shorter than the predetermined interval and is a detection result of a change in a pixel value of the object; and a processor configured to detect motion of the object at an interval shorter than the predetermined interval by using the event data, and generate second frame data from the first frame data and the motion of the object, the second frame data corresponding to a time later than a time to which the first frame data corresponds.

Abstract: A photoelectric conversion apparatus comprising a pixel array and a signal processor is provided. The pixel array is configured to be operable in driving modes in which different signal readout methods are used. The signal processor comprises a selector configured to select, based on the driving mode set for each pixel among the driving modes, a first pixel group and a second pixel group from regions of the pixel array, which have been designated to generate a correction value, a correction value generator configured to generate the correction value in accordance with a first representative value based on signals read out from the first pixel group and a second representative value based on signals read out from the second pixel group, and a corrector configured to correct, based on the correction value, the signal read out from the pixel array.

Abstract: A photoelectric conversion device is provided. The device includes a plurality of pixels each including a photoelectric conversion element, a plurality of calculators, and a processor. The plurality of pixels and the plurality of calculators are respectively arranged in a two-dimensional array. For the plurality of pixels, each pixel group of pixel groups composed of not less than two pixels of the plurality of pixels is connected to a corresponding calculator of the plurality of calculators, and each pixel group outputs a spiking signal generated by a pixel in a pixel group of the pixel groups to the corresponding calculator of the plurality of calculators. Each of the plurality of calculators executes calculation for the spiking signal, and the processor processes a calculation result input from each of the plurality of calculators.

Abstract: In a photoelectric conversion device, a first photoelectric conversion unit and a second photoelectric conversion unit are arranged so as to be aligned in a first direction in a plan view with respect to a substrate, the sensitivity of a third photoelectric conversion unit is lower than the sensitivity of the first photoelectric conversion unit and lower than the sensitivity of the second photoelectric conversion unit, and the third photoelectric conversion unit is arranged along a part of the outer circumference of a region including the first photoelectric conversion unit and the second photoelectric conversion unit in the plan view.

Abstract: A photoelectric conversion device according to an embodiment of the present disclosure includes a calculation unit configured to calculate an initial value of each of a plurality of first correction components based on a first pixel value read out from the first region, update each of the plurality of the first correction components based on a second pixel value read out from the second region and a predetermined second correction component, and calculate the correction value using the updated first correction component and the second correction component.

Abstract: A photoelectric conversion apparatus comprising a pixel array and a signal processor is provided. The pixel array is configured to be operable in driving modes in which different signal readout methods are used. The signal processor comprises a selector configured to select, based on the driving mode set for each pixel among the driving modes, a first pixel group and a second pixel group from regions of the pixel array, which have been designated to generate a correction value, a correction value generator configured to generate the correction value in accordance with a first representative value based on signals read out from the first pixel group and a second representative value based on signals read out from the second pixel group, and a corrector configured to correct, based on the correction value, the signal read out from the pixel array.

Abstract: A parameter concerning rotation of a motor is estimated (first estimation). A parameter concerning rotation of the motor is estimated, based on a model representing a prescribed change in a rotation speed of the motor (second estimation). It is determined whether an anomaly has occurred in the rotation of the motor, based on the parameter estimated in the first estimation and the parameter estimated in the second estimation.

Abstract: In order to shorten an activation time while realizing high accuracy motor control, a motor control apparatus operable to control a motor is provided. The apparatus comprises: a first drive control unit configured to drive the motor by forced commutation control; a second drive control unit configured to drive the motor by vector control; and a control unit configured to control to drive the motor by one of the first drive control unit and the second drive control unit. A first control period which is a control period in which the first drive control unit controls the motor is shorter than a second control period which is a control period in which the second drive control unit controls the motor.

Abstract: A rotation speed of a motor is estimated based on a current value of the motor, and rotation control on the motor is performed at a first cycle. Processing for detecting a loss of synchronism in the motor based on the current value is performed at a second cycle that is shorter than the first cycle.

Abstract: In an embodiment, an image processing apparatus for performing geometrical transformation of data stored in accordance with two-dimensional coordinate positions includes: a control unit configured to decompose a transformation processing from first coordinates to second coordinates into linear transformation and non-linear transformation, the control unit also being configured to determine transformation parameters for the linear transformation and the non-linear transformation; a linear transformation unit configured to perform the linear transformation of the first coordinates to calculate third coordinates; a non-linear transformation unit configured to perform the non-linear transformation of the first coordinates to calculate fourth coordinates; and a combining unit configured to combine the third coordinates and the fourth coordinates to calculate the second coordinates.

Abstract: In order to shorten an activation time while realizing high accuracy motor control, a motor control apparatus operable to control a motor is provided. The apparatus comprises: a first drive control unit configured to drive the motor by forced commutation control; a second drive control unit configured to drive the motor by vector control; and a control unit configured to control to drive the motor by one of the first drive control unit and the second drive control unit. A first control period which is a control period in which the first drive control unit controls the motor is shorter than a second control period which is a control period in which the second drive control unit controls the motor.

Abstract: Regarding an image forming apparatus for printing an input image and including a print head having a head sensor configured to sense information from the input image printed on a print medium, there is a method of determining a head sensor position parameter in the image forming apparatus. The method includes printing a first swath of the input image on the print medium and determining the head sensor position parameter by performing a sub-method. The sub-method includes capturing, via the head sensor, a target image from the printed first swath, comparing the target image to a reference image for the first swath based upon the input image, and determining the head sensor position parameter based on a relative shift between the target image and the reference image.

Abstract: A control device comprises a driving unit configured to drive a plurality of coils of a multiple-phase motor by pulse width modulation; a detection unit configured to detect currents flowing through the plurality of coils in a time-division manner; and a change unit configured to change, in accordance with a duty in the pulse width modulation, a sequence of detecting the currents flowing through the plurality of coils by the detection unit.

Abstract: A rotation speed of a motor is estimated based on a current value of the motor, and rotation control on the motor is performed at a first cycle. Processing for detecting a loss of synchronism in the motor based on the current value is performed at a second cycle that is shorter than the first cycle.

Abstract: A parameter concerning rotation of a motor is estimated (first estimation). A parameter concerning rotation of the motor is estimated, based on a model representing a prescribed change in a rotation speed of the motor (second estimation). It is determined whether an anomaly has occurred in the rotation of the motor, based on the parameter estimated in the first estimation and the parameter estimated in the second estimation.