Invention Grant
- Patent Title: Compressed image noise removal device and reproduction device
- Patent Title (中): 压缩图像噪声去除装置和再现装置
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Application No.: US12993920Application Date: 2009-06-08
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Publication No.: US08929439B2Publication Date: 2015-01-06
- Inventor: Yusuke Yatabe , Hironori Komi
- Applicant: Yusuke Yatabe , Hironori Komi
- Applicant Address: JP Osaka
- Assignee: Hitachi Maxwell, Ltd.
- Current Assignee: Hitachi Maxwell, Ltd.
- Current Assignee Address: JP Osaka
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2008-195634 20080730
- International Application: PCT/JP2009/060422 WO 20090608
- International Announcement: WO2010/013543 WO 20100204
- Main IPC: H04N7/30
- IPC: H04N7/30 ; H04N19/86 ; H04N19/80 ; H04N19/117 ; H04N19/14 ; H04N19/18 ; H04N19/44 ; H04N19/176 ; H04N19/60 ; H04N19/61 ; H04N19/48

Abstract:
A compressed-image noise removal device includes a decoder unit for decoding a digital-image-compressed stream, an information holding unit for holding sub information by the amount of a plurality of blocks, the sub information being decoded by a VLD unit, a noise judgment unit for making a judgment on noise removal of a display image generated by the decoder unit, and the information holding unit, a noise removal unit for executing the noise removal of a block whose noise removal has been judged to be executed by the noise judgment unit, using image data outputted from an inverse quantization unit, motion compensation data outputted from a motion compensation unit, and the sub information held in the information holding unit, and a display-image holding unit for holding, as a display image, an output image of the noise removal unit if the noise removal has been judged to be executed by the noise judgment unit, or the output of the decoder unit if the noise removal has been judged not to be executed thereby.
Public/Granted literature
- US20110064135A1 COMPRESSED IMAGE NOISE REMOVAL DEVICE AND REPRODUCTION DEVICE Public/Granted day:2011-03-17
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