Invention Grant
US09554044B2 Image quality adjustment apparatus, correction data generation method, and image quality adjustment technique using the apparatus and method
有权
图像质量调整装置,校正数据生成方法以及使用该装置和方法的图像质量调整技术
- Patent Title: Image quality adjustment apparatus, correction data generation method, and image quality adjustment technique using the apparatus and method
- Patent Title (中): 图像质量调整装置,校正数据生成方法以及使用该装置和方法的图像质量调整技术
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Application No.: US14430883Application Date: 2013-06-11
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Publication No.: US09554044B2Publication Date: 2017-01-24
- Inventor: Masayoshi Imoto , Hiroshi Murase , Shinya Tabata
- Applicant: IIX INC.
- Applicant Address: JP Tokyo
- Assignee: IIX INC.
- Current Assignee: IIX INC.
- Current Assignee Address: JP Tokyo
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Priority: JP2012-211226 20120925
- International Application: PCT/JP2013/066068 WO 20130611
- International Announcement: WO2014/050222 WO 20140403
- Main IPC: G09G3/00
- IPC: G09G3/00 ; G09G3/20 ; G09G5/02 ; H04N5/232 ; H04N5/341 ; H04N5/357 ; H04N17/04 ; H04N9/64 ; H04N17/00 ; H04N5/372

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.
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