Image processing apparatus and image display apparatus provided with the same
View Patent ↗A picture signal processing apparatus includes a motion vector detecting unit for detecting information as to a motion vector of a picture from frames contained in an input picture signal; an interpolation frame producing unit for producing an interpolation frame by employing the motion vector; and a frame stream producing unit for producing a picture signal of a new frame stream by combining the interpolation frame produced with the frames of the input picture signal so as to output the produced picture signal of the new frame stream. When the picture signal processing apparatus performs a converting operation in such a manner that interpolation frames are continued between two frames of the input picture signal, at least one interpolation frame among the interpolation frames is formed as such an interpolation frame formed without employing the motion vector (namely, not depending upon motion of picture).
1. A picture signal processing apparatus comprising:
a motion vector detecting unit for detecting a first motion vector information pixel by pixel from a plurality of frames contained in an input picture signal;
an interpolation frame producing unit for producing an interpolation frame, which is configured to execute a plurality of interpolation frame producing processes including a first interpolation frame producing process based on the first motion vector information, and a second interpolation frame producing process based on a second motion vector information which is calculated from a histogram of the first motion vector information for a plurality of pixels in a frame; and
a frame stream producing unit for producing a picture signal of a new frame stream including an interpolation frame produced by the first interpolation frame producing process, an interpolation frame produced by the second interpolation frame producing process, and the frames of said input picture signal; wherein:
said frame stream producing unit keeps two or more interpolation frames produced by said first interpolation frame producing process not continued in a temporal manner in said new frame stream producing process; wherein:
said interpolation frame producing unit changes said interpolation frame producing process based on whether the format of said input picture signal is a non-pull down format or a 2-to-3 pull down format.
2. A picture signal processing apparatus comprising:
a motion vector detecting unit for detecting a motion vector information from a plurality of frames contained in an input picture signal;
an interpolation frame producing unit for producing an interpolation frame; and
a frame stream producing unit for producing a picture signal of a new frame stream by combining the interpolation frame produced by said interpolation frame producing unit with the frames of said input picture signal so as to output the produced picture signal of the new frame stream; wherein:
in the case that said input picture signal has a predetermined format including a first frame and a second frame having different picture contents from each other, said interpolation frame producing unit produces both a first interpolation frame and a second interpolation frame;
said frame stream producing unit replaces (a) frame(s) between said first frame and said second frame by said first interpolation frame and second interpolation frame so as to produce a new frame stream picture signal;
said interpolation frame producing unit is configured to change a method for producing at least any one of said first interpolation frame and said second interpolation frame among the plurality of interpolation frame producing methods including a first interpolation frame producing method based on a first motion vector information detected pixel by pixel and a second interpolation frame producing method based on a second motion vector information calculated from a histogram of the first motion vector information for a plurality of pixels in a frame; and
said frame stream producing unit keeps two or more first interpolation frames; wherein:
said picture signal having said predetermined format is a 2-to-3 pull down format picture signal;
wherein:
a method for producing an interpolation frame is further changed based upon a genre of a program indicated by an input picture signal.