Fujifilm Corporation

Fujifilm Corpoation

Yoshiaki Ishii

Katsuhisa Tsutsumi

Kenkichi Hayashi

Yasunobu Kishine

Yoshikazu Shinohara

Yosuke Naruse

Michio Cho

Takayuki Noda

Kazuya Yoneyama

Keisuke Harada

Sumihiro Nishihata

Masahiko Sugimoto

Chikara Yamamoto

Takeshi Kamiya

Daiki Komatsu

Naoki Sasaki

Tatsuyuki Ogino

Makoto Kobori

An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging systems based on the input transfer functions and a predetermined criterion, a recovery-filter generation unit that generates a recovery-filter used for the recovery processing with respect to each of the plurality of imaging systems based on the transfer functions of the plurality of imaging systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging systems by using the recovery-filter generated for each of the plurality of imaging systems to generate recovered images.

Image processing device, image processing method, and camera system

An information processing apparatusincludes a reception unitthat receives information based on a captured image obtained by an imaging device, an extraction unitthat extract a plurality of image data of which a degree of similarity with a subject specified by the information received by the reception unitis equal to or greater than a predetermined value from a first image data group obtained by the bracket imaging and/or a second image data group obtained by non-bracket imaging which are accumulated in advance, a generation unitthat generates the imaging condition of the bracket imaging by using the plurality of image data extracted by the extraction unit, and a transmission unitthat transmits the imaging condition of the bracket imaging generated by the generation unitto the imaging device.

Information processing apparatus, information processing method, and information processing program

An image processing device includes a transfer function input unit to which each of transfer functions of a plurality of imaging-systems is input, a calculation unit that calculates a target resolution value which is a target value of recovery processing that recovers a plurality of captured images to be output from each of the plurality of the imaging-systems based on each of the input transfer functions and a predetermined criterion, a recovery filter generation unit that generates a recovery filter used for the recovery processing with respect to each of the plurality of imaging-systems based on each of the transfer functions of the plurality of imaging-systems and a target resolution value, and a recovered image generation unit that performs the recovery processing with respect to the captured images acquired from the plurality of imaging-systems by using the recovery filter generated for each of the plurality of imaging-systems to generate recovered images.

Provided are an imaging apparatus, a signal processing method for an imaging apparatus, and a non-transitory computer readable recording medium storing a signal processing program for an imaging apparatus capable of capturing a high quality image with a compact configuration. An imaging lensA is composed of, in order from an object side, a first lens group Gthat is fixed during variable magnification, a second lens group Gand a third lens group Gthat move during variable magnification, and a fourth lens group Gthat is fixed during variable magnification. The first lens group Gis composed, in order from the object side, a first-a lens group Gthat is fixed during focusing, a first-b lens group Gthat moves during focusing, and a first lens group rear group Gthat is fixed during focusing. Fluctuation of an angle of view with focusing is corrected through image processing.

Imaging apparatus with focus breathing correction

The present invention provides an imaging device in which focus movement due to a temperature variation is suppressed and the infiltration of foreign matter such as liquid or dust is prevented. An imaging deviceis provided with an imaging lens, an imaging element, and an intermediate member. The imaging lensis held by a lens-barreland forms an image of a photographic subject. The imaging elementcaptures the image of the photographic subject which is formed by the imaging lens. The intermediate memberhas, on the inner-peripheral-surface of one end thereof, a flange portionwhich comes into contact with the lens-barrel, and holds the lens-barrelby joining the front surfaceof a flange portionof the lens-barreland the surfaceon the imaging elementside of the flange portionto each other.

Imaging device

An imaging lens is constituted by six lenses, including, in order from the object side to the image side: a positive first lens having a convex surface toward the object side; a negative second lens; a positive third lens, which is a meniscus lens having a convex surface toward the object side; a positive fourth lens; a negative fifth lens having a concave surface toward the object side; and a negative sixth lens, of which the image toward the image side is of an aspherical shape which is concave in the vicinity of the optical axis and convex at the peripheral portion thereof. Conditional formulae related to the focal length f of the entire lens system, the focal length fof the first lens, and the focal length fof the fourth lens is satisfied.

Imaging lens and imaging apparatus equipped with the imaging lens

An imaging lens substantially consists of five lenses consisting of, in order from the object side: a first lens having a positive refractive power with a convex surface toward the object side; a second lens having a negative refractive power and having a meniscus shape with a convex surface toward the image side; a third lens having a positive refractive power and having a meniscus shape with a convex surface toward the image side; a fourth lens having a positive refractive power and having a meniscus shape with a convex surface toward the image side; and a fifth lens having a negative refractive power, wherein an image-side surface of the fifth lens includes a concave surface and at least one inflection point, wherein a predetermined conditional expression is satisfied.

Imaging lens and imaging device provided with the same

An imaging lens is constituted essentially by six lenses, including, in order from the object side to the image side: a first lens having a positive refractive power and a convex surface toward the object side; a second lens having a negative refractive power; a third lens having a positive refractive power and is of a biconvex shape; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power and a concave surface toward the object side; and a sixth lens having a negative refractive power, of which the surface toward the image side is of an aspherical shape which is concave in the vicinity of the optical axis and convex at the peripheral portion thereof. Predetermined conditional formulae are satisfied.

The imaging lens substantially consists of a first lens having a biconvex shape, a second lens having a negative refractive power, a third lens having a negative refractive power and a convex surface that faces the object side, a fourth lens having a positive refractive power, and a fifth lens having a negative refractive power, of which at least one of the object-side surface and the image-side surface has at least one inflection point, in this order from the object side; and wherein conditional expression (1A): &#x2212;0.38&#x3c;f/f45&#x3c;&#x2212;0.01 is satisfied. This conditional expression is related to the focal length f of the entire system and the combined focal length f45 of the fourth lens and the fifth lens.

Imaging lens and imaging apparatus including the same

An imaging lens provided with a negative first lens group and a positive second lens group disposed in order from the object side. The first lens group is composed of a first group first lens which is a biconcave negative single lens, and the second lens group is composed of a positive second group first lens, an aperture stop, a positive second group second lens, and a negative second group third lens disposed in order from the object side. The second group second lens and second group third lens are cemented to form a cemented lens. The imaging lens is configured to satisfy conditional expressions (2): 0&#x3c;fg2/f&#x3c;1.3, (2b'): 0.5&#x3c;fg2/f&#x3c;1.25, and (6): 31&#x3c;&#x3bd;d2 &#x3c;70 at the same time, where fg2 is combined focal length of the second lens group, f is focal length of the entire lens system, and &#x3bd;d2 is Abbe number of the second group first lens.

Imaging lens and imaging apparatus

An imaging lens substantially consists of a negative first lens group and a positive second lens group in this order from the object side. The first lens group substantially consists of only a first lens, which is one biconcave lens. The second lens group substantially consists of, in the following order from the object side: a cemented lens, which is formed by bonding a positive lens and a negative lens, in this order from the object side, and which has a positive refractive power as a whole; an aperture stop; a positive lens; and a negative lens. The imaging lens is configured to satisfy the conditional expressions (1a): 0&#x3c;f23/f&#x3c;2.5 and (2a): 0&#x3c;f45/f&#x3c;6 at the same time.

Imaging lens, and imaging apparatus including the imaging lens

An imaging lens substantially includes seven lenses, constituted by: a first lens having a positive refractive power and a convex surface toward an image side; a second lens having a negative refractive power; a third lens having a positive refractive power; a fourth lens; a fifth lens having a positive refractive power; a sixth lens; and a seventh lens having a negative refractive power, a concave surface toward an image side, and at least one inflection point in the surface toward the image side; provided in this order from an object side. All of the first lens through the seventh lens are single lenses.

An imaging lens provided with a negative first lens group and a positive second lens group arranged in order from the object side. The first lens group is composed of a first group first lens which is a negative single lens, and the second lens group is composed of a positive second group first lens, a positive second group second lens, and a negative second group third lens arranged in order from the object side. The second group first lens is a biconvex lens, the second group second lens is a biconvex lens, the second group third lens is a meniscus lens, an aperture stop is disposed between the second group first and second lenses, and the second group second and third lenses form a cemented lens. The imaging lens satisfies conditional expressions (1): &#x2212;0.89&#x2266;f1/f&#x3c;0 and (4): 0.3&#x3c;dt1/f&#x3c;0.8.

An imaging lens substantially consists of a negative first lens group and a positive second lens group in this order from the object side. The first lens group substantially consists of only a first lens, which is one biconcave lens. The second lens group substantially consists of, in the following order from the object side: a cemented lens, which is formed by bonding a second lens, i.e., a biconvex lens, and a third lens, i.e., a negative meniscus lens, in this order from the object side, and which has a positive refractive power as a whole; an aperture stop; and a cemented lens that is formed by bonding a fourth lens, i.e., a biconvex lens and a fifth lens, i.e., a negative meniscus lens in this order from the object side and that has a positive refractive power as a whole.

An imaging lens provided with a negative first lens group and a positive second lens group arranged in order from the object side. The first lens group is composed of a first group first lens which is a biconcave negative single lens, and the second lens group is composed of a positive second group first lens, an aperture stop, a positive second group second lens, and a negative second group third lens arranged in order from the object side, in which the second group second lens and the second group third lens are cemented together to form a cemented lens. When f1 and f2 are taken as the focal lengths of the first group first lens and the second group first lens respectively, the imaging lens satisfies a conditional expression (4a'): 0.62&#x3c;|f1/f2|&#x3c;0.82.

Growing community of inventors

Saitama-ken, Japan

Yoshiaki Ishii