公开(公告)号：JP2001238073A

公开(公告)日：2001-08-31

申请号：JP2000400682

申请日：2000-12-28

Applicant: ST MICROELECTRONICS INC

Inventor： DUBE SIMANT ,  HONG LI

IPC: G06T3/40 ,  G09G5/36 ,  H04N1/387

Abstract: PROBLEM TO BE SOLVED: To provide a technique for processing a picture by adaptively selecting a linear interpolation and a nonlinear interpolation. SOLUTION: The picture contents of a part of the image are sorted and in response to it, selection is carried out between a linear interpolation and a nonlinear interpolation for interpolating a data point to the part of the picture. In a part where the contact of the picture does not have an identified edge and in a part including an edge identified by being connected with an identified edge direction or a path of equal luminance, linear interpolation is used.

公开(公告)号：JP2001197507A

公开(公告)日：2001-07-19

申请号：JP2000400108

申请日：2000-12-28

Applicant: ST MICROELECTRONICS INC

Inventor： DUBE SIMANT ,  HONG LI

IPC: H04N7/32 ,  G06T9/00 ,  G06T17/00 ,  H03M7/36

Abstract: PROBLEM TO BE SOLVED: To provide a method and system for image processing in an image compression expansion system employing hierarchical coding. SOLUTION: This invention produces a plurality of predictors with respect to an object pixel by using a plurality of predictors and generates a plurality of predictors with respect to at least one pixel denoting a causal context. This invention de at least one measure of a correlation between a plurality of predictors with respect to at least one pixel and data denoting the causal context, and also gives a predictor to an object pixel calculated as a weighted sum according to the measure of at least one correlation and a weighting policy.