Fujifilm Corporation

Kousuke Irie

Kenkichi Hayashi

Yousuke Naruse

Hiroshi Endo

Seiji Tanaka

Hidekazu Kurahashi

Masahiko Sugimoto

Tomoyuki Kawai

Hiroyuki Oshima

Kenshi Imamura

Shigeru Kondo

Junichi Tanaka

Tetsuro Ashida

Takeshi Miyashita

Tooru Ueda

Hitoshi Yamashita

An image processing device and an image processing method capable of satisfactorily performing a point image restoration process of a visible light image and a point image restoration process of a near-infrared light image are provided. A point image restoration process is performed on luminance data Y indicating a visible light image and IR data indicating a near-infrared light image using a first point image restoration filter based on a first point spread function with respect to visible light of an optical system and a second point image restoration filter based on a second point spread function with respect to near-infrared light of the optical system. An appropriate point image restoration process is performed on the IR data so that restoration strength (second gain &#x3b2;) in the point image restoration process for the IR data captured with radiation of near-infrared light is higher than restoration strength (first gain &#x3b1;) in the point image restoration process for the luminance data Y.

Image processing device, imaging device, image processing method, and image processing program

A distance-information acquisition unit acquires information about a distance to a subject in each focus detection region by setting a plurality of focus detection regions in an imaging region. A depth-of-field calculating unit calculates the depth of field for one major subject (principal object) on the basis of the information about a distance to the major subject, which is selected from a plurality of subjects, and a diaphragm value, which is corrected on the basis of optical characteristics of an APD filter. An insertion/retreat control unit determines whether or not a subject other than the major subject is present outside the depth of field on the basis of the information about the distance and inserts the APD filter onto the light path in a case in which the subject other than the major subject is present outside the depth of field.

Imaging device, imaging device body, and lens barrel

Provided is an imaging device that prevents glare resulting from light that leaks out from a subject display area of a display section in an OVF mode. A finder device can be switched between the OVF mode and an EVF mode. A subject display area and an information display area are set in an EVFLCD. In the OVF mode, nothing is displayed in the subject display area of the EVFLCD, and an information image is displayed in the information display area. An EVF shutter is set such that the light transmittance of a first area, which corresponds to the subject display area, becomes a low transmittance and the light transmittance of a second area, which corresponds to the information display area, becomes a high transmittance. The first area, which is set at low transmittance, blocks light that leaks from the subject display area.

Imaging device and control method therefor

An image processing device includes a statistical information acquiring unit, an optical information acquiring unit, a filter information calculating unit and a filter coefficient calculating unit. The filter information calculating unit obtains filter information of a restoration filter for point image restoration processing according to at least one of statistical information and optical information. The filter information includes information related to number of taps of the restoration filter and information indicating a kind of symmetry of the restoration filter. The filter coefficient calculating unit calculates a filter coefficient of the restoration filter according to the statistical information and the optical information with at least the information related to the number of taps of the restoration filter and the information indicating the kind of the symmetry of the restoration filter of the filter information as a constraint condition.

Image processing device, imaging device, computer, image processing method and computer readable non-transitory medium

According to the present invention, even if variation (estimation variation) is caused in a subject distance estimated at the time of imaging when restoration processing of a taken image is performed using a restoration filter corresponding to the subject distance, since an optimal restoration filter that conforms to a subject distance taking into account the maximum infinity-side estimation variation and does not cause overcorrection is selected, it is possible to prevent resolution degradation due to overcorrection and achieve the improvement of resolution by the restoration filter.

Imaging device and image processing method

According to the present invention, when restoration processing of a taken image by the use of a restoration filter corresponding to a subject distance is performed, by storing only a corresponding restoration filter in a subject distance range between the estimation variation close range and the infinity such that a restoration filter in a range on the nearer side than the estimation variation close range is not provided from the beginning, it is thereby possible to reduce the number of restoration filters held beforehand.

An image processing method in accordance with one aspect of the present invention includes: preparing a storage unit storing a color mix ratio, which is each of color mix ratios of peripheral pixels adjacent to an object pixel for mixed color correction in a mosaic image including pixels of a plurality of colors, corresponding to each of combinations of first and second parameters indicating an azimuth direction and a color of each of the peripheral pixels, respectively; acquiring color signals of any object pixel and peripheral pixels thereof; reading out a corresponding color mix ratio from the storage unit based on an azimuth direction and a color of each of the peripheral pixels; and eliminating mixed color components included in the object pixel based on the color signals of the object pixel and the peripheral pixels thereof, and the color mix ratio of the peripheral pixels.

Image processing device and imaging device

For a mosaic image in a repeated cycle with 'I'&#xd7;'J' (&#x201c;I&#x201d; and &#x201c;J&#x201d; are integers of 2 or more) pixels, a color mix ratio is stored in a memory unit by being associated with a pixel position in I&#xd7;J pixels so that a color mix ratio A associated with a pixel position in I&#xd7;J pixels of an object pixel for mixed color correction is read from the memory unit, and a mixed color component included in the object pixel is removed based on the color mix ratio A and a color signal of the object pixel to calculate a white balance gain based on a color signal of each of pixels in the mosaic image for which the mixed color correction is applied.

Image processing device and method, and imaging device

An image capture device provided with a first memory unit, which memorizes position information of non-continuous defective pixels of a solid-state image capture component, and a second memory unit with a higher access rate than the first memory unit, which memorizes position information of continuous defective pixels. When a continuous photography mode or a video photography mode is set, defective pixel correction processing is carried out on image data corresponding to each of defective pixels according to the defective pixel position information stored at the second memory unit. Alternatively, when a still photography mode is set, image data corresponding to all defective pixels is corrected, based on both the defective pixel position information stored at the first memory unit and the defective pixel position information stored at the second memory unit. As a result, it is possible to correct defective pixels with high efficiency in accordance with conditions of photography.

Image capture device correcting defective pixel information

A digital still camera has a CCD image sensor, which includes an active pixel area for image pickup of an image to produce image data. A black pixel area is disposed outside the active pixel area, and produces black pixel data. The image pickup apparatus includes an amplifier for adjusting white balance of the image data. A smear detection unit detects a smeared portion of a smear phenomenon in the image according to the black pixel data. A tone correction unit reduces chroma of the image in a predetermined hue area according to a smear level of the smear phenomenon determined from the black pixel data, to carry out color correction of the smeared portion for the image data after adjusting the white balance.

Image pickup apparatus and method

The present invention provides an image capturing apparatus which enables a desired image quality to be maintained regardless of transfer efficiency of a CCD image capturing element. R, G and B signals (CCD-RAW data) are acquired from the CCD image capturing element. In addition, various information, namely transfer efficiency of the CCD image capturing element, camera sensitivity upon photography, drive frequency of the CCD image capturing element, WB gains of the acquired R, G and B signals, pixel count, internal temperature of camera or temperature of the CCD image capturing element, and CCD color filter array of the CCD image capturing element are acquired. Signal processing on the acquired R, G and B signals is changed according to the acquired information in order to suppress image quality deterioration due to transfer efficiency degradation.

Growing community of inventors

Saitama, Japan

Kousuke Irie