Canon Kabushiki Kaisha

Soichiro Suzuki

Tomotaka Uekusa

Hiroyuki Yaguchi

Kazunari Fujii

Yukio Furukawa

Takahiro Akiyama

Shinichiro Iimura

Hiroyuki Watanabe

Shimpei Matsuo

Tatsuya Hotogi

Kazunori Takayama

Ryuhei Shoji

Minoru Sakaida

Hayato Takahashi

An image capture apparatus includes an image capture unit, a communication unit that receives subject information about a subject captured by an external apparatus, and a control unit that controls the image capture apparatus based on a first operation mode in a case where the subject information does not include information about a main subject, or based on a second operation mode in a case where the subject information includes the information about the main subject. The first operation mode is an operation mode of searching for the main subject, and the second operation mode is an operation mode of capturing an image of the subject at an angle of view that is different from an angle of view of the external apparatus.

Image capture apparatus and control method

An image processing device includes a buffer memory configured to temporarily store image data, setting circuit for setting a first data rate at which the image data is transferred to a recording memory, and adjusting circuit for adjusting a data rate by causing a portion of image data read from the image sensor to be temporarily stored in the buffer memory when a second data rate exceeds the first data rate, and causing the temporarily stored portion of the image data to be output from the buffer memory when the second data rate is lower than the first data rate, the portion of the image data corresponding to an amount by which the second data rate exceeds the first data rate.

Image processing device and control method therefor, and storage medium

An apparatus takes data read out in parallel from m rows (2&#x2264;m&#x3c;M) of a region, of an image sensor having M&#xd7;N pixels, and stores n columns' worth (2&#x2264;n&#x3c;N) of the read-out data in first memory. The apparatus stores the M&#xd7;N pixels' worth of data in second memory by storing m&#xd7;n pixels' worth of data in units of o&#xd7;p pixels (2&#x2264;o&#x3c;m, 2&#x2264;p&#x2264;n), and transfers the M&#xd7;N pixels' worth of data, to third memory in the units of o&#xd7;p pixels. The apparatus outputs the data stored in the third memory one row at a time so that the data are arranged in the original order.

Image processing apparatus and control method thereof

A disclosed image processing apparatus detects a motion vector between a first image and a second image based on the correlation between the first image and the second image. When the degree of reliability of the detected motion vector is determined based on an evaluation value regarding the correlation, a difference in amount of bokeh between the first image and the second image is considered to improve accuracy of the degree of reliability of the motion vector.

Image processing apparatus and image processing method for calculating motion vector between images with different in-focus positions

An image processing apparatus including: a first acquisition unit configured to acquire write coordinates corresponding to a position of a pixel up to which writing is completed; a second acquisition unit configured to acquire readout coordinates corresponding to a position of a second block where readout is to be performed of a plurality of second blocks included in the image data written in the memory; and a controller configured to control whether or not to permit a readout request from a reading unit based on a positional relationship between the write coordinates acquired by the first acquisition unit and the readout coordinates acquired by the second acquisition unit, wherein the controller performs control so as not to permit the readout request from the reading unit if the positional relationship between the write coordinates and the readout coordinates does not satisfy a predetermined condition.

Image processing apparatus and image processing method including control whether or not to permit a readout request

An image processing apparatus comprises: a dividing unit that divides two frame images into a plurality of divided areas; a determination unit that determines a representative point for each of the divided areas in one of the two frame images; a setting unit that, for each of the two frame images, sets image portions for detecting movement between the two frame images, based on the representative points; and a detection unit that detects movement between the two frame images based on correlation values of image signals in the set image portions, wherein for each of the divided areas, the determination unit determines a feature point of the divided area or a predetermined fixed point as the representative point of the divided area in accordance with a position of the divided area in the one frame image.

Image processing apparatus and method

This invention makes it possible to increase the image processing speed and reduce the power consumption at the same time by controlling power supply to each processing circuit with a simple control arrangement. To achieve this, when displaying or recording a captured image, a plurality of processing circuits are allowed to equally access a DRAM. When a captured image is displayed to be confirmed in a non-recording mode, power is supplied to an image developing unit with high power consumption in one of two sections obtained by dividing a display frame interval so as to concentrate memory access in the section, and power supply to the image developing unit is stopped upon the end of processing.

Imaging apparatus capable of controlling power consumption and access to memory and control method thereof

This invention improves the image processing speed by implementing efficient access to a buffer memory while suppressing the access count. For this purpose, when transferring ith partial image data obtained from a first signal processing unit to a buffer memory, a data-transfer controlling unit transfers data out of the ith partial image data except the data of a region overlapping an immediately preceding (i&#x2212;1)th partial image data to the buffer memory, and transfers the ith partial image data including the data of the overlap region to a subsequent second signal processing unit.

Image processing apparatus

An image forming apparatus which includes a color detection unit that emits a light to a color material and a reference plate on a printing material and detects the reflected light and corrects an amount of the color material upon image forming based on a detection result, comprises: a storage unit that stores, in advance, the detection result of each of the color material and the reference plate detected; and a blot detection unit that estimates the detection result for the reference plate based on a relationship between a stored reference value of each of the color material and the reference plate and the detection result of the color material, and if a difference between the estimated detection result and the detection result of the reference plate is larger than a predetermined value, detects presence of a blot.

Image forming with abnormity detection

A power supply apparatus needs to control an output voltage to a target voltage for a short time. A power supply apparatus of the present invention detects voltages output from a piezoelectric transformer. The power supply apparatus also detects peak values in a plurality of detected voltages according to a plurality of frequencies of pulse signals for the piezoelectric transformer, and identifies a frequency corresponding to the highest peak value, and a frequency corresponding to a next peak value next to and on a higher- or lower-frequency side of the frequency corresponding to the highest peak value. Moreover, the power supply apparatus sets an initial frequency used when starting to control the output voltage of the piezoelectric transformer to the target voltage, within a frequency range between the two identified frequencies.

Power supply apparatus and image forming apparatus

Disclosed is an oscillator device that includes an oscillating system having a first oscillator, a second oscillator, a first torsion spring for connecting the first and second oscillators each other, and a second torsion spring being connected to the second oscillator and having a common torsional axis with the first torsion spring; a supporting system for supporting the oscillating system; a driving system for driving the oscillating system so that at least one of the first and second oscillators produces oscillation as can be expressed by an equation that contains a sum of a plurality of time functions; a signal producing system for producing an output signal corresponding to displacement of at least one of the first and second oscillators; and a drive control system for controlling the driving system on the basis of the output signal of the signal producing system so that at least one of amplitude and phase of the time function takes a predetermined value.

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Kawasaki, Japan

Soichiro Suzuki