Abstract:
PURPOSE:To provide the blur detector for a picture in which a detection proba bility of a blur vector by independent same vectors is improved and a blur vector is surely detected. CONSTITUTION:A field difference detection section 11 and a macro vector detection section 12 detect a motion vector for each of macro blocks being divisions of one picture into plural numbers so that macro blocks not adjacent to each other are produced. Then an independent same vector discrimination section 16 discriminates a same motion vector produced in at least two macro vectors at spatially separated positions by taking similar motion vectors to be a same vector and the motion vector is outputted as a blur vector of the entire picture.
Abstract:
PURPOSE:To detect a hand jiggle vector with high accuracy through interpola tion even when a moving object is in existence in a picture. CONSTITUTION:A field difference detection section 11, a correlation integration list generating section 12 and a macro vector detection section 15 are used to detect a motion vector for each of macro blocks being plural number of divisions of one pattern and a motion vector detection section 16 detects motion vectors of the entire pattern. The motion vector detection section 16, a peripheral integration value storage section 17, a effective integration value list generating section 18 and an interpolation processing section 19 are used to interpolate the motion vectors of the entire pattern with integration data around the motion vectors of each valid macro block in which the motion vectors in the vicinity of the motion vectors for the entire pattern are obtained and the result is outputted as a hand jiggle vector.
Abstract:
PURPOSE:To provide the motion vector detector for image capable of detecting the motion vectors of images with high accuracy. CONSTITUTION:Respective subtraction circuits SUB1-SUBn detect difference between the image data of respective data picture elements in the block of a current frame and the image data of representative point picture elements in preceding fields and the from 1 to (n) read from respective representative point memories FM1-FMn, and the motion vectors of images among the fields from 1 to (n) are detected by the respective motion vector detecting circuits SUB1-SUBn and outputted through a selector SEL. An acceleration judging circuit ACJ judges acceleration for the motion of the image based on the motion vectors of the images among the fields from 1 to (n) and controls the selection of the selector SEL.
Abstract:
PURPOSE:To provide the blurring judging device for an image capable of surely judging whether the motion vector of the image is caused by blurring or not. CONSTITUTION:A condition judging circuit 43 judges a picture element for which the absolute value of difference between the image data of respective picture elements in the block of a current frame and the image data of a representative point picture element in the block of the preceding frame read from a representative point memory 41 satisfies a prescribed condition, and a frequency distribution forming circuit 44 forms a frequency distribution table corresponding to the judged result. When the average value of the frequency values of peripheral coordinates for a coordinate designated by the motion vector of the image is smaller than a prescribed value concerning the frequency distribution table, a blurring vector judging circuit 46 judges that the motion vector is caused by blurring.
Abstract:
PURPOSE:To provide the motion vector detector for an image capable of detecting the motion vector of the image with high accuracy by interpolation estimation. CONSTITUTION:A subtraction circuit 12 detects difference between the image data of respective picture elements in the block of a current frame and the image data of a representative point picture element in the block of the preceding frame read from a representative point memory 11, and a correlation integrated value table forming circuit 13 forms a correlation integrated value table. When the coordinate of a minimum correlation integrated value in the correlation integrated value table is a coordinate excepting for a coordinate corresponding to the representative point picture element, a motion vector estimating circuit 14 estimates the motion vector of the image based on the correlation integrated value in a peripheral coordinate, where the coordinate of the minimum correlation integrated value positions at the center, and the minimum correlation integrated value.
Abstract:
PROBLEM TO BE SOLVED: To provide an image processing apparatus, an image processing method, and a program that, on the basis of a minimum amount of correction data and a minimum amount of calculation, can correct chromatic aberration of magnification even for an aberration-generated pattern having point-symmetry broken by a cause such as an individual difference of lenses.SOLUTION: On the basis of lens control information, a color to be processed, and an image height, a concentric aberration correction amount calculating unit 213 selects correction data 241 from a concentric aberration correction data table 240, and calculates a concentric aberration correction amount. On the basis of the lens control information and the color to be processed, a uniform aberration correction amount calculating unit 214 selects correction data 251 from a uniform aberration correction data table 250, and calculates a uniform aberration correction amount. On the basis of the concentric aberration correction amount and the uniform aberration correction amount, a color drift destination pixel value calculating unit 215 calculates a pixel value of a color drift destination pixel to which a pixel to be processed corresponds. A pixel value correcting unit 216 rewrites the pixel value of the pixel to be processed into the pixel value of the color drift destination pixel.
Abstract:
PROBLEM TO BE SOLVED: To provide an image processing device, an image processing method, and a program which can calculate a correction magnification for image correction corresponding to a method of change of a luminance level in an edge of an image in the image in which magnification chromatic aberration occurs, and can perform suitable image correction. SOLUTION: The image processing device is characterized: to detect an edge part in the image based on image data and a change direction of a luminance value of the edge part based on the luminance value of a pixel signal included in the image data; to calculate correlation of two color component signals included in the image data in the edge part, to detect a color shift amount; to calculate scaling magnification of other color component signals making a color component signal as a standard based on the color shift amount and a distance from an optical axis; to sum frequencies of the scaling magnification in the image data for each kinds of change directions of luminance values of the edge part; and to extract a correction magnification used for correction of the chromatic aberration for each kinds of change directions of the luminance values of the edge part based on the frequencies of the scaling magnification. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To record an AV signal so as not to bring about inconvenience at the time of editing the AV signal. SOLUTION: Three video PES packets composed of one video frame are combined to be an editing unit, alternately arranged with a corresponding audio editing unit and recorded on a magnetic tape.
Abstract:
PROBLEM TO BE SOLVED: To provide a picture signal encoder for encoding a high quality digital picture signal having compatibility with a conventional digital picture signal and to provide a picture signal decoding device decoding the signal. SOLUTION: A component obtained by converting the sampling frequency of the chroma signal C of a basic picture signal inputted from an input terminal 120 into 1/2 is added to the luminance signal Y of the original picture signal of 4:2:2, which is inputted from an input terminal 110. Then, a compression encoding is executed on it. A base data being the picture signal of 4:1:1 or 4:2:0 following a former digital picture signal format is generated. An encoding residual extraction part 123 extracts an encoding residual between the basic picture signal and the base data. Enhancement data containing the high pass component of the chroma signal C is generated by encoding the encoding residual. When compatibility with the conventional digital picture signal is required, only base data is used and enhancement data is added to base data when a high-quality digital picture signal is required.
Abstract:
PURPOSE:To obtain a still image video signal generating circuit capable of displaying a still image with high resolution without allowing a field flicker to appear. CONSTITUTION:A 2-field delay video signal SV2 outputted from a field memory 3 is supplied to the (a) side of a change-over switch 7. An interpolating video signal SVc formed by an interpolating circuit 6 based upon the video signal SV2 and on one-field delay video signal SV1 outputted from a field memory 2 are supplied to an adaptive synthesizing circuit 5. An adaptive synthetic video signal SVa synthesized by the circuit 5 based upon a correlation judging signal gammais supplied to the (b) side of the switch 7. When the signal gamma is large and the remarkable rate of a field flicker is high, the rate of the signal SVc to the signal SVa is increased. A still image video signal SV3 is obtained by alternately swiching the switch 7 to the (a) and (b) sides in each field.