Iix Inc.

Nec Corporation

Nippon Telegraph and Telephone Corporation

Nec Electronics Corporation

Kabushiki Kaisha Toshiba

Nagoya University

Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Photolab Inc.

Hiroshi Murase

Kunio Kashino

Yasutaka Nakashiba

Hiroaki Ohkubo

Naoki Oda

Tokuhito Sasaki

Nobukazu Ito

Naoyoshi Kawahara

Takayuki Kurozumi

Masayoshi Imoto

Gavin Smith

Hirokazu Takagi

Takashi Sakamoto

Akio Kobayashi

Makoto Hatakenaka

Kuniko Kikuta

Mitsuo Hagiwara

Reiji Ohara

Daisuke Deguchi

Sachio Muraki

Yasutomo Kawanishi

Hideaki Suzuki

Takahiro Imai

Yusuke Nakano

Norimasa Kobori

Hiroaki Kumon

Hiroshi Furuta

Akisato Kimura

Kozo Matsushita

Takayuki Miyahara

Toshikazu Sato

Norimasa Senda

Yoshihide Minegishi

Toshiaki Inohara

Hiromi Naotsuka

Nik Mohd Zarifie Bin Hashim

Shinya Tabata

Kazunori Yoshizawa

Fumito Shimmura

Ichiro Ide

Tomoyuki Takano

An unevenness correction data generation device suppressing the appearance of color unevenness when turning on R, G and B together includes a pattern generation unit causing red, green and blue images, in which display panel subpixels are turned on at the same gray level, to be displayed, a monochrome camera, a control unit generating first red, green and blue luminance correction data based on shooting data of the monochrome camera, a pattern generation unit causing the display panel to display a white image by causing red, green and blue images corrected with the respective luminance correction data to be displayed simultaneously, a color camera shooting the white image in color, and a control unit generating color correction data for correcting color unevenness based on shooting data of the color camera and generates unevenness correction data based on the red, green and blue luminance correction data and the color correction data.

Unevenness correction data generation device

A panel drive circuit having an input interface to which an image signal is input, a gamma correction circuit that corrects an image processing signal generated by an image processing circuit performing image processing on the image signal input to the input interface, such that a gamma correction signal thus generated has predetermined gamma characteristics, an unevenness correction circuit that corrects the gamma correction signal generated through the correction by the gamma correction circuit, based on correction data for reducing unevenness of a display panel, and an D/A convertor that has a variable output voltage range, and performs D/A conversion on an unevenness correction signal generated through the correction by the unevenness correction circuit and outputs the signal thus generated to the display panel, and the unevenness correction circuit changes the correction method according to the output voltage range of the D/A convertor.

Panel drive circuit

An image processing method includes capturing a display image of a display panel in-focus with a camera; generating a first image by applying a high-pass filter to the captured image to remove or reduce a spatial frequency component corresponding to moir&#xe9; that has appeared in the captured image; capturing the display image out-of-focus with the camera; generating a second image by applying a correction filter to the captured image to correct attenuation of the spatial frequency component of the captured image with the correction filter, and applying a low-pass filter to the corrected captured image; and generating a third image in which the moir&#xe9; has been removed or reduced by compositing the first image and the second image. The sum of the transmittance of the high-pass filter and the transmittance of the low-pass filter is a constant value at any spatial frequency.

Image processing method and image processing apparatus for executing image processing method

A viewpoint recommendation apparatus includes image feature extraction means for extracting an image feature from the acquired image at a first viewpoint, pose estimation means for calculating a first likelihood map indicating a relation between the estimated pose of the object and a likelihood of this estimated pose, second storage means for storing a second likelihood map indicating a relation between the true first viewpoint and a likelihood of this first viewpoint in the estimated pose, third storage means for storing a third likelihood map indicating a relation between the pose of the object when the object is observed at the first and the second viewpoints and a likelihood of this pose, and viewpoint estimation means for estimating the second viewpoint so that a value of an evaluation function of the first, second, and third likelihood maps becomes the maximum or minimum.

Viewpoint recommendation apparatus, recommendation method thereof, and non-transitory computer readable medium

An unevenness correction data generation method provided for generating unevenness correction data for effectively improving the yield of a display panel. The method includes: a step of capturing an image of a display panel where a predetermined pattern is displayed; a step of generating iteration data for correcting unevenness of the captured image; a step of storing the iteration data in a storage means; a step of capturing an image of the display panel where a pattern in the storage means is displayed; a step of generating iteration data for correcting unevenness of the captured image; a step of storing iteration data in the storage means; a step of judging whether or not an ending condition for ending repetition of the steps is satisfied; and a step of generating the unevenness correction data based on the iteration data stored in the storage means the ending condition is satisfied.

Unevenness correction data generation method and unevenness correction data generation system

A direction discrimination device includes: an extraction unit configured to extract pieces of feature information from an image of a person, each of the pieces of feature information representing a feature of corresponding one of portions of the person; and a discrimination unit configured to discriminate a direction of the person based on the pieces of feature information. The discrimination unit is configured to weight first feature information which is feature information of a portion that is likely to have a difference in the feature between a first direction and a second direction range, more than second feature information which is feature information of a portion that is less likely to have a difference, in determination of the direction of the person. The second direction range not includes the first direction and includes a second direction opposite to the first direction.

Direction discrimination device and direction discrimination method

Given that a plurality of visual transfer function curves for a display panel are provided for each of different ranges from the display panel, two-dimensional luminance distribution data of the display panel is filtered using a filter having visual frequency characteristics substantially passing through: a part where a recognition sensitivity increases as a spatial frequency increases in a short-range function curve, which among the plurality of visual transfer function curves is the closest to the display panel; a peak part of the short-range function curve; a peak part in a long-range function curve, which among the plurality of visual transfer function curves is the farthest from the display panel; and a part where the recognition sensitivity decreases as the spatial frequency increases in the long-range function curve. An evaluation value of luminance unevenness of the display panel is calculated on the basis of the filtered two-dimensional filtering data.

Unevenness evaluation method and unevenness evaluation apparatus

Provided are a light-emitting apparatus that can suppress manufacturing cost to a low level and perform light emission with high uniformity using a simple configuration, a calibration coefficient calculation method using the light-emitting apparatus, and a method for calibrating a captured image of an inspection target object. A plurality of light-emitting diodes arranged at equal intervals on the circumference of a virtual circle, and a milky white-colored emission window, which is provided on a top surface portion separated from the light-emitting diodes, has an outer edge that is smaller than the circumference on which the light-emitting diodes are arranged, and allows light of the light-emitting diodes to pass therethrough, are included. The diameter of the virtual circle on which the light-emitting diodes are arranged and a separation distance between the light-emitting diodes and the emission window are set to predetermined distances.

Light-emitting apparatus, calibration coefficient calculation method, and method for calibrating captured image of examination target item

Provided is an image processing method, an image processing apparatus, and the like according to which the influence of moir&#xe9; can be suppressed without incurring a decrease in image resolution. An image is captured in a state in which moir&#xe9;, which appears when capturing an image in-focus, has appeared, a first image is generated by removing a spatial frequency component corresponding to the moir&#xe9; from the captured image using a high-pass filter, an image is captured out-of-focus by the camera, a second image is generated by applying a low-pass filter to the captured image, and a third image in which the moir&#xe9; is eliminated or suppressed is generated by compositing the first image and the second image.

An image quality adjustment apparatus obtains correction data for correcting display unevenness of a display panel by capturing an image of the display panel using a camera, and includes a moire frequency control unit that performs a control to position the display panel and the camera at a predetermined relative angle with respect to each other, an unevenness measurement unit that measures the display unevenness of the display panel based on the image captured by the camera, and a correction data generation unit that generates the correction data based on the unevenness measured by the unevenness measurement unit. Arranging the panel and the camera at the predetermined relative angle shifts a spatial frequency component of a moire pattern occurring in the image captured by the camera out of a region where a spatial frequency component of the display unevenness is present, and removes an influence of the moire pattern.

Image quality adjustment apparatus, correction data generation method, and image quality adjustment technique using the apparatus and method

Provided is a pattern position detection method that allows detecting positions of patterns used for alignment with high accuracy. According to the pattern position detection method of the present invention, patterns are displayed on a liquid crystal panel () and captured by a camera (). A black image is displayed on the liquid crystal panel () and captured by the camera () using a shutter speed or an f-number used when capturing the patterns. Based on a difference between a captured image of the patterns and a captured image of the black image, positions of images of the patterns on an imaging surface of the camera () are detected.

Pattern position detection method, pattern position detection system, and image quality adjustment technique using the method and system

Provided is a luminance measurement method for accurately measuring luminance of each pixel even if pixel images of a display panel overlap each other on an imaging surface of a camera. A central exposure factor indicating luminance of the central part of the pixel image is calculated on the basis of an output of a picture element corresponding to the central part. A peripheral exposure factor indicating luminance of the peripheral part of the pixel image is calculated on the basis of an output of picture elements corresponding to the peripheral part of the pixel image is calculated, all pixels of the display panel are sorted into a plurality of groups, sequentially turned on one group after another, and imaged by the camera, and the luminance of all the pixels of the display panel is calculated based on this imaged image, the central exposure factor, and the peripheral exposure factor.

Luminance measurement method, luminance measurement device, and image quality adjustment technique using the method and device

Provided is a luminance measurement method for accurately measuring luminance of each pixel even if pixel images of a display panel overlap each other on an imaging surface of a camera. Pixels of a display panel are imaged by a solid-state imaging camera. One or more pixels are turned on and imaged such that pixel images do not overlap each other on an imaging surface. A central exposure factor indicating luminance of the central part of the pixel image is calculated based on a picture element output corresponding to the central part. A peripheral exposure factor indicating luminance of the peripheral part of the pixel image is calculated based on a picture element output corresponding to the peripheral part. All pixels are turned on and imaged, and luminance of all pixels is calculated based on this imaged image, the central exposure factor, and the peripheral exposure factor.

There are included: an initial sub-signal creation section which creates, from an original signal, sub-signals of shorter length than the original signal; a created sub-signal selection section which, for the sub-signals produced by the initial sub-signal creation section, prunes the created sub-signal candidates to those for which the amount of data is less than for the original signal; a sub-signal re-creation section which determines a created sub-signal which is actually to be used, using the created sub-signal candidates produced by the created sub-signal selection section; a compression mapping determination section which determines, from the sub-signals produced by the sub-signal re-creation section, a mapping for calculation of a compressed signal; and a signal compression section which calculates a compressed signal corresponding to the sub-signals obtained by the sub-signal re-creation section, based upon the mapping obtained by the compression mapping determination section.

Signal compression method, device, program, and recording medium; and signal retrieval method, device, program, and recording medium

Growing community of inventors

Tokyo, Japan

Hiroshi Murase