KR890001381A - Motion vector processing method and apparatus and television type converter and slow motion processor - Google Patents

Abstract

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Description

Motion vector processing method and apparatus and television type converter and slow motion processor

Since this is an open matter, no full text was included.

1 is a schematic block diagram of a television system converter;

2 is a block diagram of a first television converter.

Claims (25)

A method of processing a motion vector associated with a digital television image, the method comprising: extracting a plurality of motion vectors each representing a motion of a pixel in the image, the joint position in a field interpolated between at least two consecutive fields of the image; And testing the accuracy of each of the motion vectors by differently shifting the pixels shifted according to the motion vectors, and selecting the motion vectors from the plurality by the test. The method of claim 1, wherein a pixel shifted according to at least one motion vector from at least a second two field of the image and a field of the image subsequent to the second field to the common position is different from each other in the plurality of motion vectors. Retesting at least one accuracy, and selecting a motion vector from the plurality according to the test. The motion vector of claim 1, wherein the motion vector is extracted by determining a motion in the image by a blocking matching technique at a distance between a predetermined number of samples horizontally and a predetermined number of samples vertically. Vector processing method. 4. The block matching technique of claim 3, wherein the block matching technique comprises: checking a minimum difference at a center position of one block on a three-position side, a predetermined number of samples to the left, and a predetermined number of samples to the right, starting from the point indicated Checking the minimum difference at nine positions symmetrically distributed around the reference point in the step of a small sample or line, starting at the point indicated, at a smaller number of selected samples or lines Checking a minimum difference at nine positions symmetrically distributed around the starting point, starting at the indicated point, the minimum difference at nine positions distributed around the starting point at a smaller selected sample or line stage Examining the minimum difference at nine positions distributed symmetrically around the starting point in one sample or line, and The vector operation processing method, characterized in comprising a. 5. The method according to claim 4, wherein the difference generated at the final position indicated by the last step of claim 4 is adjusted between two upper and lower differences for adjusting vertical vector values and two upper and lower differences for adjusting horizontal vector values and a horizontal vector value. And an additional step of comparing the two left and right differences. Means for extracting a plurality of motion vectors 0 each representing a motion of a pixel in the image, and varying pixels moved according to the motion vector from at least two consecutive fields of the image to interpolated co-locations between the fields Means for testing the accuracy of the motion vector, and means for selecting a motion vector from a plurality according to the test, wherein the motion vector processing apparatus is associated with a digital television image. 7. The method of claim 6, wherein a pixel shifted according to at least one motion vector from at least a second two millimeters of the image and a field of the contiguous image of the second field to the co-location is different so that Means for retesting at least one accuracy and means for selecting a motion vector from the plurality according to the test. 7. The apparatus of claim 6, wherein the means for extracting a motion vector comprises a vector filter and a vector operator, the image being blocked by a blocking matching technique in that there is an interval of a predetermined number of samples horizontally and a predetermined number of samples vertically. A motion vector processing apparatus, characterized in that for determining a motion within the frame. 10. The motion vector processing apparatus according to claim 8, wherein the vector calculator is arranged to perform the following steps on a digital signal represented by the vector and supplied to the vector calculator by the vector. Testing the minimum difference at the center position, the selected number of samples to the left, and the selected number of samples to the right, symmetrical around the starting point at the stage of the number of small selected samples or lines starting from the indicated point Testing the smallest difference at nine positions distributed by, starting at the indicated point, testing the smallest difference at nine positions symmetrically distributed around the starting point at a smaller predetermined sample or number of lines Starting at the point indicated, and dividing around the start point in a smaller sample or line step. Testing the minimum difference at nine positions, and testing the minimum difference at nine positions symmetrically distributed about the perimeter in one sample or line, as indicated above. Motion vector processor. 10. The apparatus of claim 9, wherein the vector calculator compares two differences between the upper and lower sides for adjusting the vertical vector value and the two differences between the left and right for adjusting the horizontal vector value. An apparatus for processing a motion vector, characterized in that it is arranged to execute an additional step following the step of claim 9. Means according to claims 6 to 10 for analyzing the operation between successive fields of a television input signal of one television system, means for arranging the fields effectively, and means for effectively reproducing a still picture; A television system converter comprising means for obtaining a predetermined television output signal of a television system. 12. The television set according to claim 11, further comprising an interpolator for vertical / temporal interpolation as said converting means, wherein said television input signal is fed to said interpolator via a timebase corrector for generating television signals of 585 lines and 60 fields. Type converter. 13. The television of claim 12 wherein the television input signal is a 625 line 50 field signal, the timebase corrector is a four field timebase corrector, and the output of the timebase corrector is fed to the interpolator via a four field shift register. Type converter. 13. The television of claim 12 wherein the television input signal is a 525 line 60 field signal, the timebase corrector is a two field timebase corrector, and the output of the timebase corrector is fed to the interpolator via a four field shift register. Type converter. 12. The method of claim 11, wherein the field arranging means changes the address of the variable delay element so that each pixel of the screen is placed at the nearest neighbor or sample, wherein each pixel of the screen is perpendicular and horizontal to a single line and a single sample, respectively. A television system that worked to be deployed. 16. The television set of claim 15 wherein the vertical placement for the single line is performed by a vertical interpolator with four tabs per field and the horizontal placement for the single sample is performed by a horizontal field with two or four tabs. Type converter. A television type converter for converting 625 line 50 fields to 525 line 60, a four field timebase corrector for receiving a digital television input signal of 625 line 50 fields, and connected to an output of the timebase corrector to operate the television input signal. And a shift register to which the output of the timebase calibrator is connected, a sample obtained from the shift register, and a screen motion data obtained from the motion analyzer. And a two-field timebase corrector for combining the interpolator to generate the sample and the fraud generated sample to form the television output signal. 18. The television system of claim 17, wherein the four-field timebase corrector generates a 585 line 60 field television signal from the television input signal and supplies it to the shift register. A television type converter for converting 525 line 60 fields into 625 line 50 fields, comprising: a two-field timebase corrector for receiving a digital television input signal of 525 line 60 fields, and connected to an output of the timebase corrector to A digital television output of a predetermined 625-line 50 field based on a motion analyzer for analyzing the motion, a shift register connected to the output of the timebase corrector, a sample obtained from the sound shift register, and a screen motion data obtained from the motion analyzer. And a four-field timebase corrector that combines the generated samples into the television output signal by interpolator for generating a sample of the signal. 18. The television system according to claim 17, wherein said two-field timebase corrector generates a 585 line 60 field television signal from said television input signal and supplies it to said shift register. 19. The motion analyzer of claim 18, wherein the motion analyzer generates a motion vector according to motion between corresponding pixels of the continuous field of the television input signal, supplies the motion vector to the interpolator, and effectively arranges the pixels of the continuous field to stop. Television system converter which let you reproduce screen. 21. The motion analyzer of claim 20, wherein the motion analyzer generates a motion vector according to motion between corresponding pixels of the continuous field of the television input signal, supplies the motion vector to the interpolator, and effectively arranges the pixels of the continuous field to stop. Television system converter which let you reproduce screen. A slow motion processor, comprising: an input circuit for receiving a digital television input signal, a motion analyzer while analyzing the operation of the digital television input signal, a shift register for holding another successive field of the television input signal, and the shift register An interpolator for generating a sample of a predetermined slow motion digital television output signal according to the sample obtained from the motion analysis data and the screen motion data generated by the motion analyzer, and the generated sample in combination with the slow motion television output signal. A slow motion processor having a two-field timebase calibrator that forms 24. The slow motion processor of claim 23, wherein the input circuit comprises a four field timebase corrector. 25. The slow motion processor of claim 24, wherein the four-field timebase corrector generates a 585 line 60 field television signal from the television input signal and supplies it to the shift register. ※ Note: The disclosure is based on the initial application.