Mitsubishi Denki Kabushiki Kaisha

Yoshino Kogyosho Co., Ltd.

Mitsubishi Electric Corporation

Ocean Spray Cranberries, Inc.

Aisin Seiki Kabushiki Kaisha

Mitsubishi Denki Kabushiki

Hiroaki Sugiura

Shuichi Kagawa

Tetsuya Kuno

Narihiro Matoba

Jun Someya

Tetsuo Takahashi

Akiho Ota

Mariko Takahashi

Koichi Yamashita

Tomohiro Sasagawa

Shinji Shimada

Takashi Itow

Katsumi Asakawa

Yoshiko Hatano

Masako Asamura

Hideki Yoshii

Yataro Yoshino

Kozo Ishida

Takao Iizuka

Kohei Teramoto

Atsushi Michimori

Koji Minami

Akihiro Nagase

Takeshi Yamada

Masao Akutsu

Masashi Tamura

Hiroichi Ishii

Kazuaki Kojima

Fujio Shioiri

Junko Makita

Masayuki Saito

Satoshi Yamanaka

Tadao Saito

Shinsuke Shikama

Kazuhiko Tsutsumi

Tsuneo Sato

Yoshitaka Toyoda

Noritaka Okuda

Shotaro Moriya

Takashi Okamoto

Hiroyuki Miyake

Kazuya Maeshima

Yoshiteru Suzuki

Noriyuki Komori

Shuzo Endo

Kiyotaka Yamamoto

Hideyuki Kaneko

Junichiro Hayashi

Yoshikuni Nishimura

Hiroshi Sasaki

Kuniko Kojima

Muneharu Kuwata

Mitsuo Inoue

Eiji Niikura

Kazuo Kyuma

Tomoyuki Ozawa

Takeo Fujita

Hironobu Yasui

Hideki Nakayoshi

Tetsuya Hayashi

Norihiro Watanabe

Junichi Aizawa

Tadashi Minobe

Yoshiaki Hayashi

Takuzo Takada

Daisuke Echizenya

Hideo Kushida

Junichi Nose

Kouhei Tamano

Hideki Kunishio

Takami Tsukada

Hidetada Nagaoka

Harumi Kinoshita

Tadashi Hayakawa

Takeshi Itakura

Rena Nishitani

Hiroaki Ishitani

Ryosuke Namiki

Shigeharu Yoshikawa

Yuko Onoda

Hiroyuki Takenaga

Toshio Yaka

Shoutarou Moriya

Katsutoshi Sugiyama

Masao Hamamura

A planar light source device includes a first light source for emitting a first light ray having a punctate spatial luminance distribution; a second light source for emitting a second light ray; a first spatial luminance distribution conversion portion for changing the first light ray to a linear spatial luminance distribution; a second spatial luminance distribution conversion portion for changing a spatial luminance distribution of the first and second light rays to a planar spatial luminance distribution; wherein the first light ray is a laser light; the second light ray has a divergence angle larger than the divergence angle of the first light ray when the first light ray is emitted from the first light source; and a slow-axis direction of the first light ray entering the second spatial luminance distribution conversion portion is parallel to an outgoing direction of the planar light.

Backlight device and liquid crystal display apparatus

An intermediate image generating means () generates a horizontal intermediate image (D) and a vertical intermediate image (D) by extracting components of an input image (DIN) in a particular frequency band; an intermediate image processing means () generates a horizontal image (DBh) and a vertical image (DBv) by performing non-linear processing (A) and high-frequency component generation (B); an intermediate image (D) is obtained by combining these horizontal and vertical images by performing weighted addition for each pixel and is added () to the input image (DIN) to obtain an enhanced output image (DOUT). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, adequate image enhancement processing can be carried out.

Image display apparatus, image processing apparatus and method to output an image with high perceived resolution

A first intermediate image generating means () generates an intermediate image (D) by extracting a component of an input image DIN in a particular frequency band; a second intermediate image generating means () generates an intermediate image Dhaving a frequency component higher than the intermediate image (D); a first intermediate image processing means (M) generates an intermediate image (DM) by amplifying the pixel values in the intermediate image (D); a second intermediate image processing means (H) generates an intermediate image (DH) by amplifying the pixel values in the intermediate image (D); and an adding means () adds the input image (DIN) and the intermediate image (DM) and the intermediate image (DH) together to obtain an output image (DOUT). A first amplification factor (DMA) and a second amplification factor (DHA) are determined according to pixel values in the input image (DIN). Even if the input image includes a fold-over component on the high-frequency side or does not include an adequate high-frequency component, an enhanced image can be provided without causing overshoot.

Image processing apparatus and method and image display apparatus

An image display device and an image display method are provided so as to suppress consumption power and provide a more brightly colored display image. The image display device is provided with a light modulating means wherein image data is inputted and an image is formed by modulating light from a light source based on the image data. The image display device is also provided with a color information detecting means for detecting a quantity of a chromatic color component of an image expressed by the image data; a light source control data generating means for generating light source control data for controlling brightness of the light source; and a light source control means for controlling the brightness of the light source based on the light source control data.

Image display apparatus and method

A video display apparatus generates luminance information for individual frames of a video signal from histograms of the luminance component of the video signal, and classifies the content of the video signal on the basis of this information. Color saturation information is also generated from color saturation histograms, and scene changes are detected. Video correction parameters and display control parameters are derived from the content classification and color saturation information. The video signal is corrected according to the video correction parameters, and displayed according to the display control parameters. Display characteristics suitable for the video content are thereby obtained. The parameters are changed when a scene change is detected, so that the viewer is not disturbed by the change in video display characteristics.

Video display apparatus that adjusts video display parameters based on video picture type

A light diffusion element includes a light diffusion layer that contains at least two types of liquid crystal molecules each having a different light scattering characteristic defined by a voltage and a refractive index. A pair of electrodes sandwiches the light diffusion layer, an applying unit generates and applies a variable voltage to the pair of electrodes, and a voltage changing unit varies the voltage generated by the applying unit. The voltage changing unit varies the voltage such that each of the refractive indexes of the liquid crystal molecules in the light diffusion layer changes temporally.

Light diffusion element, screen, and image projector

In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.

Image displaying apparatus and image displaying method

A color conversion apparatus receives first image data including first red-green-blue color data in which the possible values of the red, green, and blue components extend beyond the range from 0% to 100%. The first color data are analyzed into first hue region data, the magnitudes of which are adjusted according to the brightness and/or saturation of the first color data to obtain second and third hue region data. The gamut of colors of the first image data is detected, and matrix coefficients are generated according to the detected gamut. The matrix coefficients are used to perform a matrix operation on the second and third hue region data to obtain second color data, thereby converting the first image data to second image data with conversion characteristics appropriate for the gamut of colors of the first image data.

Color conversion apparatus and method

An image processing apparatus enhances contrast without producing color balance distortion or color collapse by generating a gradation-scale correction table from a distribution of a characteristic quantity of an input image signal, using the gradation-scale correction table to derive a gradation correction parameter for each pixel from a maximum component value of the pixel, and multiplying all components of the pixel by the gradation correction parameter.

Image processing apparatus

A block noise detector has a spatial difference calculator that calculates differences between values of adjacent pixels. A spatial difference comparator detects edges by comparing the calculated differences. Eight counters count edges detected at different groups of positions spaced eight pixels apart in each horizontal line. The maximum count and the group of positions at which it occurs are detected at the end of each horizontal line to detect block noise and the positions of the block boundaries. The block noise detector is small in size because it only has to count edges in one line at a time, and detects edges accurately by comparing the difference at a given position separately with differences to the left and differences to the right.

Block noise detector and detection method, and block noise reducer and reduction method

An image processing device includes a first calculation means for calculating a non-capture color signal corresponding to an H-th interpolation color for a pixel of interest, a second calculation means for calculating a non-capture color signal by multiplying a J-th capture color signal corresponding to the capture color for the pixel of interest by the ratio of the H-th two-dimensional low-pass filter output to the J-th two-dimensional low-pass filter output, and a third calculation means for calculating a non-capture color signal corresponding to the H-th interpolation color for the pixel of interest using the calculation result according to the first calculation means and the calculation result according to the second calculation means.

Image processing device, non-capture color signal calculating device, and image processing method

An image display projector is provided so as to reduce scintillation. The image display projector comprises: an optical engine for emitting light according to an inputted imaging signal; a Fresnel lens disposed to receive the light emitted from the optical engine, for emitting the incident light as collimated one; a diffusion member, placed in front of the Fresnel lens in the light-traveling direction, for diffusing the collimated light emitted from the Fresnel lens; and a drive unit for moving either the Fresnel lens or the diffusion member, along a predetermined track (orbit), in a plane parallel to either the plane from which the collimated light or the diffused light is emitted. And then, the moving velocity of either the Fresnel lens or the diffusion member is at any moment larger than zero in any direction within the parallel plane.

Image display projector having a drive unit for moving either a Fresnel lens or a diffusion member

The present invention provides a control device capable of improving hysteresis characteristics of a voice coil motor () and attaining a suitable lens position without complicating the structure of the control device. As solving means of the invention, a voice coil motor control device () includes a driving current control part () that controls a driving current supplied to the voice coil motor () in accordance with a driving pulse subjected to pulse width modulation, and a driving pulse control part () that divides a drive period of the voice coil motor () into a movement period and a holding period, and controls the driving pulse by changing the duty ratio of the driving pulse during the movement period in accordance with a duty setting value and fixing the duty ratio of the driving pulse during the holding period to the duty setting value.

Voice coil motor control device and method of driving the same, image pickup device

A regression analysis is carried out () using pixel signals having a K-th spectral characteristic as the explanatory variable and pixel signals having an L-th spectral characteristic as the purpose variable in a plurality of pixel positions in an area neighboring a pixel of interest to obtain a pixel signal having the L-th spectral characteristic (). Pixel signals obtained by low-pass filtering (-) of the output signals of an imaging device may be used as the explanatory variable and the purpose variable. The occurrence of false colors is thereby reduced when, in a group of pixel signals from pixels arrayed on a two-dimensional plane, each pixel having one of a plurality of spectral characteristics, the missing colors at each pixel position are obtained by interpolation.

Pixel signal processing apparatus and pixel signal processing method

An image processing apparatus processes an input color image, combines the input color image with the processed color image in a ratio that varies from picture element to picture element according to the hue of the picture element, and outputs the combined image. The output image can accordingly be selectively processed to give desired qualities in suitable degrees to particular hues.

Image processing apparatus and image processing method

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Tokyo, Japan

Hiroaki Sugiura