Invention Grant
US07991054B2 Information signal processing device, information signal processing method, image signal processing device, image displaying device, device and method for producing correction data used in them, device and method for producing coefficient data, programs for executing these methods, and computer-readable medium for storing the program
失效
信息信号处理装置，信息信号处理方法，图像信号处理装置，图像显示装置，用于生成其中使用的校正数据的装置和方法，用于产生系数数据的装置和方法，用于执行这些方法的程序，以及用于执行这些方法的计算机可读介质 存储程序
- Patent Title: Information signal processing device, information signal processing method, image signal processing device, image displaying device, device and method for producing correction data used in them, device and method for producing coefficient data, programs for executing these methods, and computer-readable medium for storing the program
- Patent Title (中): 信息信号处理装置，信息信号处理方法，图像信号处理装置，图像显示装置，用于生成其中使用的校正数据的装置和方法，用于产生系数数据的装置和方法，用于执行这些方法的程序，以及用于执行这些方法的计算机可读介质 存储程序
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Application No.: US10521331Application Date: 2003-07-18
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Publication No.: US07991054B2Publication Date: 2011-08-02
- Inventor: Tetsujiro Kondo , Tsutomu Watanabe , Masaaki Hattori
- Applicant: Tetsujiro Kondo , Tsutomu Watanabe , Masaaki Hattori
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frommer Lawrence & Haug LLP
- Agent William S. Frommer
- Priority: JP2002-210995 20020719; JP2002-210996 20020719
- International Application: PCT/JP03/09191 WO 20030718
- International Announcement: WO2004/010706 WO 20040129
- Main IPC: H04N7/18
- IPC: H04N7/18
Abstract:
The present invention relates to an apparatus for processing informational signal etc. that are preferably applied to a digital broadcast receiver etc. A class classification portion (130) generates a class code CL for indicating a class to which pixel data y of a target position in an image signal Vb belongs. From an accumulation table (131), based on this class code CL, difference data DF (correction data of encoding noise) that corresponds to the target position is read. Pixel data (pixel value or DCT coefficient) x that corresponds to the target position in the image signal Vb is supplied to an addition portion (134). The addition portion 134 adds the difference data DF read out of the accumulation table (131) to this pixel data x, to obtain pixel data y of the target position in the image signal Vb. Encoding noise (encoding distortion) of this pixel data y is reduced.
Public/Granted literature
Information query
