公开(公告)号：US10970825B2

公开(公告)日：2021-04-06

申请号：US16484265

申请日：2017-02-09

Applicant: IIX INC.

Inventor： Hiroshi Murase

IPC: G06T5/00 ,  G06T5/30 ,  G06T5/50

Abstract: 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 moiré 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 moiré 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.

公开(公告)号：US10803782B2

公开(公告)日：2020-10-13

申请号：US16700052

申请日：2019-12-02

Applicant: IIX INC. ,  PHOTOLAB INC.

Inventor： Hiroshi Murase

IPC: G09G3/20

Abstract: 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.

公开(公告)号：US20200005437A1

公开(公告)日：2020-01-02

申请号：US16484265

申请日：2017-02-09

Applicant: IIX INC.

Inventor： Hiroshi Murase

IPC: G06T5/00 ,  G06T5/30 ,  G06T5/50

Abstract: 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 moiré 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 moiré 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.

公开(公告)号：US10145538B2

公开(公告)日：2018-12-04

申请号：US15545982

申请日：2016-01-27

Applicant: IIX INC.

Inventor： Hiroshi Murase ,  Tomoyuki Takano

IPC: F21V11/00 ,  F21V9/08 ,  F21K9/64 ,  G01C11/02 ,  G06T5/00 ,  G02F1/13 ,  G02F1/13357 ,  H04N17/00 ,  F21Y113/13 ,  F21Y115/10 ,  F21K99/00 ,  G01N21/93

Abstract: 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.

公开(公告)号：US09554044B2

公开(公告)日：2017-01-24

申请号：US14430883

申请日：2013-06-11

Applicant: IIX INC.

Inventor： Masayoshi Imoto ,  Hiroshi Murase ,  Shinya Tabata

IPC: G09G3/00 ,  G09G3/20 ,  G09G5/02 ,  H04N5/232 ,  H04N5/341 ,  H04N5/357 ,  H04N17/04 ,  H04N9/64 ,  H04N17/00 ,  H04N5/372

CPC classification number: H04N5/23264 ,  G09G3/006 ,  G09G3/20 ,  G09G5/02 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0693 ,  G09G2360/145 ,  H04N5/341 ,  H04N5/357 ,  H04N5/372 ,  H04N17/004

Abstract: 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.

Abstract translation: 图像质量调节装置通过使用照相机拍摄显示面板的图像来获得用于校正显示面板的显示不均的校正数据，并且包括：莫尔频率控制单元，其进行将显示面板和相机定位在预定位置的控制 相对于彼此相对的角度;不平度测量单元，其基于由照相机拍摄的图像来测量显示面板的显示不均匀;以及校正数据生成单元，其基于由不平坦度测量得到的不均匀性生成校正数据 单元。 将面板和相机以预定的相对角度排列将存在于由显示不均匀的空间频率分量的区域中的摄像机拍摄的图像中出现的莫尔图案的空间频率分量移位，并且消除 莫尔图案

公开(公告)号：US08941742B2

公开(公告)日：2015-01-27

申请号：US14309225

申请日：2014-06-19

Applicant: IIX Inc.

Inventor： Hiroshi Murase

IPC: H04N17/02 ,  G02F1/1339 ,  H01L23/00 ,  H01L23/498 ,  H04N17/00

CPC classification number: H04N17/00 ,  G01J3/506 ,  G02F1/1309 ,  G09G3/006 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0693 ,  H01L2924/0002 ,  H04N9/3182 ,  H04N9/3194 ,  H01L2924/00

Abstract: 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.

Abstract translation: 提供了即使在相机的成像表面上显示面板的像素彼此重叠的情况下，也可以精确地测量每个像素的亮度的亮度测量方法。 基于对应于中央部分的像素的输出来计算指示像素图像的中心部分的亮度的中心曝光因子。 基于计算与像素图像的周边部分对应的像素的输出，计算出表示像素图像的周边部分的亮度的周边曝光因子，将显示面板的所有像素分类为多个组 依次依次打开一组，并通过照相机成像，并且基于该成像图像，中心曝光因子和外围曝光因子计算显示面板的所有像素的亮度。

公开(公告)号：US08786712B1

公开(公告)日：2014-07-22

申请号：US14069834

申请日：2013-11-01

Applicant: IIX Inc.

Inventor： Hiroshi Murase

IPC: H04N17/02 ,  G02F1/1339 ,  H01L23/00 ,  H01L23/498

CPC classification number: G09G3/006 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0693 ,  H01L2924/0002 ,  H01L2924/00

Abstract: 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.

Abstract translation: 提供了即使在相机的成像表面上显示面板的像素彼此重叠的情况下，也可以精确地测量每个像素的亮度的亮度测量方法。 显示面板的像素由固态成像相机成像。 打开一个或多个像素并成像，使得像素图像在成像表面上彼此不重叠。 基于与中心部分对应的图像元素输出，计算表示像素图像的中心部分的亮度的中心曝光因子。 基于对应于周边部分的图像元素输出计算表示像素图像的周边部分的亮度的周边曝光因子。 所有像素被打开并成像，并且基于该成像图像，中心曝光因子和外围曝光因子来计算所有像素的亮度。