CN100583960C - Deciding method and system for video de-interleaving solution strategy - Google Patents
Deciding method and system for video de-interleaving solution strategy Download PDFInfo
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Abstract
The invention provides a determination method for video deinterlacing strategy and a device thereof. The method comprises the following steps: a differential field is obtained by all pixels in an i field minus the relevant pixels in an i+2 field; a specified checking area is found out according the differential field; the i field and the i+1 field are combined to one specified frame; and the specified area in the specified frame are checked if the area has the combing distortion to determine the pixel deinterlacing mode in the specified checking area.
Description
Technical field
The present invention relates to a kind of technology of handling video signal, particularly relate to a kind of video de-interleaving solution strategy determining method and system.
Background technology
The release of an interleave of video signal has three kinds of methods traditionally, first kind be " single game interpolation method " (Bob), second kind be " act of union " (Weave), the third be " adaptability dynamic resolution alternating method " (MotionAdaptive).The single game interpolation method mainly is that each is expanded as a complete frame.The row that lose between scan line in are that the interpolation of data with its up-downgoing calculates and fills, and as shown in figure 14, carry out release of an interleave as desire to first 1401 or the 3rd 1403, can utilize the interpolation of data of even column to go out the data of odd column; Same, carry out release of an interleave as desire to second 1402 or the 4th 1404, can utilize the interpolation of data of odd column to go out the data of even column.If do badly, image seems to have mottled mosaic.Even well-done, image seems also can be gentle partially, lost resolution inevitably.Occasion and rule are to utilize adjacent idol field and strange occasion to become a complete frame, under this algorithm, two continuous fields are merged into a frame, as shown in figure 14, can also or in conjunction with second 1402 and the 3rd 1403 form a whole frame in conjunction with first 1401 and second 1402 formation one whole frame.This only just works relatively goodly under the few situation of amount of movement between the Liang Chang (motion) usually, and for example two is the situation of a moving-picture frame.If but between field and the field mobile (motion) arranged, synthetic frame would just have comb shape (Combing) phenomenon.
A kind of synthesis that the staggered rule of adaptability dynamic resolution is a comprehensive single game interpolation method and an act of union, intercepting both sides' advantage.The method mainly is to be that unit does dynamically detection with the point to the field that is received earlier, and when detecting this point for static, this point is with regard to use occasion and method release of an interleave, to obtain the result of optimum resolution.When detecting this point for dynamic, this point just uses single game interpolation method release of an interleave, to avoid the generation of comb shape (Combing) phenomenon.So this kind adaptability dynamic resolution alternating method has done the quality of the picture of release of an interleave, depend primarily on the ability of detection of dynamic.
Detection of dynamic has two kinds of ways in the prior art, a kind of dynamically (frame motion) detection method of frame that is referred to as, and another kind is referred to as dynamic (field motion) detection method.Figure 16 A shows the schematic diagram of existing frame detection of dynamic method.Please refer to Figure 16 A, in this Figure 16 A, 4 field F161～F164 are arranged.Frame detection of dynamic method mainly is with in the homologous field (for example F162 and F164), co-located pixel 1601 and 1602 judges whether to dynamically, when the difference value of pixel 1601 and 1602 greater than certain default value, then represent this pixel 1602 for dynamic, so pixel 1602 must be made the single game interpolation method to obtain pixel 1604 with pixel 1603.
Figure 16 B shows the schematic diagram of existing detection of dynamic method.Please refer to Figure 16 B, in this Figure 16 B, 4 field F161～F164 are arranged equally.Frame detection of dynamic method mainly is with in the opposite field (for example F161 and F162), adjacent position pixel 1607 judges whether pixel 1605 and 1606 is dynamic, when pixel 1607 and 1605,1606 difference value greater than certain default value, represent that then pixel 1607 and the pixel among the F161 1605,1606 among the F162 are dynamically, be static state if judge, then use occasion and method just directly use pixel 1605,1606 and pixel 1607 to merge.
Because following several problem usually can take place above-mentioned existing detection of dynamic, cause the release of an interleave algorithm to select mistake, and make that the release of an interleave picture is bad.Please refer to Fig. 1, it shows the schematic diagram of virtual static state.Wherein 101 and 103 is strange, and 102 and 104 is the idol field.103 and 101 points of being taken a sample on sunshade all are white as can be seen on sample line 105, and all are black at 102 and 104 points of being taken a sample.If with more adjacent strange or the adjacent idol of frame detection of dynamic method (frame motion), for example will 101 and 103 make comparisons, 102 and 104 make comparisons, its result who compares will be a static state (still).If because of using frame detection of dynamic method to cause above-mentioned erroneous judgement to be static state, cause the field 101～104 of Fig. 1 to make occasion also, then can produce 202 results as Fig. 2.In the result 202 of Fig. 2, very serious comb shape phenomenon partly appears in sunshade.Relative, if adopt
Dynamic field of (field motion) more adjacent different odd evens of detection method, as will 101 and 102 making comparisons, 102 and 103 make comparisons, its result who compares will be dynamic (motion).Cause frame that Fig. 1 solves in dynamic single game interpolation method as Fig. 2 201 shown in, the comb shape phenomenon does not partly appear in sunshade.
Please refer to Fig. 3, it shows the schematic diagram of the virtual static state different with Fig. 1.Wherein 301 and 303 is strange, and 302 and 304 is the idol field.On the sample line 305 as can be seen 303 and 301 points of on " O " diagram, being taken a sample be white, be black and illustrate the points taken a sample at " O " 302 and 304.303 and 301 points of being taken a sample on " K " diagram are black, are white and illustrate the points of being taken a sample 302 and 304 at " K ".If the field of the more adjacent different odd evens of use detection of dynamic method (field motion), for example 301 and 302 to make comparisons, 303 and 304 to make comparisons, its result who compares will be dynamic (motion).If, then can produce result as Fig. 4 because of making use detection of dynamic method cause above-mentioned erroneous judgement to make " single game interpolation " for the field 301～304 that dynamically causes Fig. 3.In the result 401 of Fig. 4, very serious scintillation appears in " OK " part.
If with existing frame detection of dynamic method (frame motion), only judge that adjacent and identical field is to judge dynamically whether time of frame, under 301～304 the situation of input for Fig. 3, can obtain as 402 results among Fig. 4 (can not glimmer), yet under input is 101～104 situations at Fig. 1, the result's (serious comb type) as 202 among Fig. 2 can appear.If with an existing detection of dynamic method (field motion), only judge that adjacent and different fields are to judge dynamically whether time of frame, in input be to occur under 101～104 situations of Fig. 1 as 201 results (the comb type produces) of Fig. 2, yet be 401 results (picture seriously glimmers) among Fig. 4 to occur under 301～304 situations of Fig. 3 in the input field.
Existing technology all can only be handled one of them situation of above-mentioned Fig. 1 or Fig. 3, can not simultaneously two kinds of situations be done correct processing.Yet the situation of Fig. 1 should be judged as dynamically, and the situation of Fig. 3 should be judged as static state, could all obtain optimum.
Summary of the invention
Purpose of the present invention is exactly in that a kind of video de-interleaving solution strategy determining method is provided, in order to the de-interleaving solution strategy of correct judgement video signal, with the image quality behind the enhancement video de-interleaving solution.
A further object of the present invention provides a kind of video de-interleaving solution strategy decision systems, and the de-interleaving solution strategy mistake of avoiding prior art to take place is improved image quality.
The present invention proposes a kind of video de-interleaving solution strategy determining method, and the method comprises the following steps: subtract each other corresponding with all pixels in the i+2 field of i field obtained a difference field; According to this difference field, find out a specific inspection block; Merging i field and i+1 field is a particular frame; And check the comb shape phenomenon of the specific inspection block in this particular frame, in the release of an interleave mode of decision to the pixel in the specific inspection block, wherein i is a natural number.
According to the described video de-interleaving solution strategy determining method of preferred embodiment of the present invention, the step of above-mentioned " according to this difference field; find out a specific inspection block " comprising: from above-mentioned difference field, the block that pixel difference is surrounded greater than a default value pixel is as specific inspection block.In another embodiment, the step of " according to this difference field, finding out a specific inspection block " comprises: from above-mentioned difference field, pixel difference is added an expanded range greater than one first block that a default value pixel is surrounded, as specific inspection block.
According to the described video de-interleaving solution strategy determining method of preferred embodiment of the present invention, the step of above-mentioned " checking the comb shape phenomenon of the specific inspection block in this particular frame; to determine the release of an interleave mode of the pixel in the specific inspection block " comprising: when the pixel in the specific inspection block in the particular frame does not have the comb shape phenomenon, determine this pixel use to merge release of an interleave.In another embodiment, the step of above-mentioned " checking the comb shape phenomenon of the specific inspection block in this particular frame; in the release of an interleave mode of decision to the pixel in the specific inspection block " comprising: when the pixel in the specific inspection block in the particular frame has the comb shape phenomenon, determine this pixel single game interpolation release of an interleave.
According to the described video de-interleaving solution strategy determining method of preferred embodiment of the present invention, above-mentioned i field is the field of different kenels with the i+1 field, and the i field is the field of identical kenel with the i+2 field.
The present invention proposes a kind of video de-interleaving solution strategy decision systems, and this system comprises: pixel difference unit, inspection block definition unit, comb shape detecting unit and release of an interleave format determination unit.The pixel difference unit receives i field and i+2 field, and subtract each other corresponding with all pixels in the i+2 field of i field obtained a difference field.Check the reception of block definition unit and, find out a specific inspection block according to this difference field.The comb shape detecting unit receives i field and i+1 field, is a particular frame in order to merge i field and i+1 field.One release of an interleave format determination unit, the comb shape phenomenon of the pixel in the specific inspection block in the inspection particular frame, in the release of an interleave mode of decision to the pixel in this specific inspection block, wherein i is a natural number.
According to the described video de-interleaving solution strategy decision systems of preferred embodiment of the present invention, above-mentioned inspection block definition unit is also in order to from the difference field, and the block that pixel difference is surrounded greater than a default value pixel is as specific inspection block.In another embodiment, check that the block definition unit also in order to from the difference field, adds an expanded range with pixel difference greater than one first block that a default value pixel is surrounded, as specific inspection block.
According to the described video de-interleaving solution strategy decision systems of preferred embodiment of the present invention, when the pixel in the specific inspection block in the above-mentioned particular frame did not have the comb shape phenomenon, release of an interleave format determination unit determined this pixel use to merge release of an interleave.When the pixel in the specific inspection block in the above-mentioned particular frame had the comb shape phenomenon, release of an interleave format determination unit determined this pixel single game interpolation release of an interleave.
According to the described video de-interleaving solution strategy decision systems of preferred embodiment of the present invention, above-mentioned i field is the field of different kenels with the i+1 field, and the i field is the field of identical kenel with the i+2 field.
The present invention is because of adopting according to the difference field, find out specific inspection block, and utilize to check the comb shape phenomenon of the pixel in the specific inspection block in the synthetic frame in adjacent place, in the release of an interleave mode of decision to this pixel of field, therefore except the de-interleaving solution strategy that can guarantee correct judgement video signal, the de-interleaving solution strategy mistake that more can avoid prior art to take place is with the image quality behind the enhancement video de-interleaving solution.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 shows the schematic diagram of existing virtual static state.
Fig. 2 shows the Different Results that the field of Fig. 1 is produced with different video de-interleaving solution algorithms.
Fig. 3 shows the schematic diagram of another existing virtual static state.
Fig. 4 shows the Different Results that the field of Fig. 3 is produced with different video de-interleaving solution algorithms.
Fig. 5 shows the system block diagrams of the video de-interleaving solution strategy decision systems of the embodiment of the invention.
Fig. 6 shows the video de-interleaving solution strategy determining method flow chart of the embodiment of the invention.
Fig. 7 shows the embodiment of the invention with a field 101 and 103 a difference field that constituted.
Fig. 8 A and Fig. 8 B show the schematic diagram of above-mentioned specific test zone decision right way of conduct formula.
Fig. 9 shows the specific inspection block diagram of checking that block definition unit 502 defines in Fig. 7.
Figure 10 shows the embodiment of the invention and merges into a particular frame and detect the result whether pixel comb shape phenomenon exists with field 101 and 102.
Figure 11 shows the embodiment of the invention with a field 301 and 303 a difference field that constituted.
Figure 12 shows the inspection block diagram of checking that block definition unit 502 defines in Figure 11.
Figure 13 shows the embodiment of the invention and merges into a particular frame and detect the result whether pixel comb shape phenomenon exists with field 301 and 302.
Figure 14 shows the schematic diagram of existing idol and strange field.
Figure 15 shows the schematic diagram of existing comb type (combing).
Figure 16 A shows the schematic diagram of existing frame detection of dynamic method.
Figure 16 B shows the schematic diagram of existing detection of dynamic method.
The reference numeral explanation
101,103,301,303,1402,1404: strange
102,104,302,304,1401,1403: the idol field
105,305: sample line
201: the result who makes the single game interpolation with the field of Fig. 1
202: make occasion result also with the field of Fig. 1
401: the result who makes the single game interpolation with the field of Fig. 3
402: make occasion result also with the field of Fig. 3
501: the pixel difference unit
502: check the block definition unit
503: the comb shape detecting unit
504: release of an interleave format determination unit
601～604: the step of the embodiment of the invention
80: threshold value
801,802: the data of scan line
81: higher thresholds
82: low threshold value
803: the data 802 of scan line surmount the data that received before the higher thresholds 81
804: the data 802 of scan line surmount the data that received after the higher thresholds 81
901: the part of sunshade
1001: the sunshade block
1301: " OK " block
P151～P156,1601～1609: pixel
F161～F164:
Embodiment
Two kinds of detection of dynamic methods in the prior art respectively can only be done correct processing to one of them situation of above-mentioned Fig. 1 or Fig. 3.The present invention proposes a kind of method and apparatus, the above-mentioned two kinds of situations of processing that respectively can be correct.Below just cooperate icon with explanation the present invention with the embodiment literal.
Fig. 5 shows the system block diagrams of the video de-interleaving solution strategy decision systems of the embodiment of the invention.Please refer to Fig. 5, this system comprises pixel difference unit 501, checks block definition unit 502, comb shape detecting unit 503 and release of an interleave format determination unit 504.Fig. 6 shows the video de-interleaving solution strategy determining method flow chart of the embodiment of the invention.Below the system diagram of the flow chart of usefulness Fig. 6, Fig. 5 is so that the explanation embodiments of the invention.
The field that the video de-interleaving solution strategy decision systems received of hypothesis present embodiment is four fields 101～104 of existing Fig. 1 at first, earlier.Pixel difference unit 501 just begins adjacent strange field (or the adjacent idol field) action that 101,103 works subtract each other, and corresponding the subtracting each other of each pixel in the strange field 101 and 103 obtains a difference field, as Fig. 7 (step 601).Among Fig. 7, than differing greatly of the part remarked pixel value of black.Difference than the part remarked pixel value of light color is less.Value differences is bigger, and relative dynamic (motion) that just represent object is more serious.Value differences is less, relative just represents the dynamically slighter of object.As seen from Figure 7, the partial dynamic of sunshade is less.
Next, check the difference field that block definition unit 502 receives as Fig. 7, and find out a specific inspection block (step 602) according to this difference field.At this, hypothesis checks that the difference field that block definition unit 502 is received is to transmit in the mode of serial (Serial) data earlier, just the difference field is divided into the multi-strip scanning line, and the data of each bar scan line are sent to the mode of serial checks block definition unit 502.At this, explain the mode that how to define specific inspection block with Fig. 8 A and Fig. 8 B.
At first, check that in explanation before the define method of block, the longitudinal axis of definition Fig. 8 A and Fig. 8 B is expressed as the size of the serial data of checking that block definition unit 502 is received earlier.The transverse axis that defines Fig. 8 A and Fig. 8 B again is the time.Therefore, the data 801,802 of the scan line of Fig. 8 A and Fig. 8 B, if with Fig. 7 as an example, what refer to is exactly that pixel value from the pixel value of wherein first pixel of a scan line of Fig. 7 to a last pixel is according to stringing schematic diagram of time.
First kind of definition mode of checking block please refer to Fig. 8 A, and definition one threshold value 80 is arranged on Fig. 8 A.When the data 801 of the scan line that is received surpass threshold value in the T1 time, then will together with the securing elongated scope in the left and right sides, all be defined in the specific inspection block above the part of threshold value.The second way please refer to Fig. 8 B, has defined higher thresholds 81 and low threshold value 82 at Fig. 8 B.When the data 802 of the scan line that is received in T2 time during greater than higher thresholds 81, just (data 803 that received during securing elongated this section of T2～T0) are defined in the specific inspection block before the T2, and the data 802 that received after the T2 also are defined in the specific inspection block, are lower than low threshold value 82 (T3 time) up to the data 802 that received.
Please refer to Fig. 9, Fig. 9 shows and checks that block definition unit 502 utilizes the specific inspection block diagram that mode defined of step 602, and wherein the block of grey is above-mentioned specific inspection block.This can be seen that the part 901 of sunshade is defined within the specific inspection block fully.
Next step, merging field 101 and 102 is a particular frame (step 603).With respect to Fig. 5 embodiment, comb shape detecting unit 503 received fields 101 and 102 are merged into a frame with it.The testing result that merges back comb shape phenomenon can be with reference to Figure 10 (black partly represents to have the comb shape phenomenon to exist).The sunshade block that note that Figure 10 can see, two continuous occasions and after, this sunshade block can produce the phenomenon of serious comb shape (combing).
Last step in frame comb shape phenomenon check result output as shown in figure 10, and cooperates specific inspection block defined previously, in the release of an interleave mode (step 604) of decision to the field.In the embodiment of Fig. 5, release of an interleave format determination unit 504 receives the particular frame comb shape phenomenon check result that above-mentioned comb shape detecting unit 503 is exported, and to check that block definition unit 502 goes to check the comb shape phenomenon of this particular frame.Although by the pixel in the inspection block in the above-mentioned continuous field 101～104 of pixel difference unit 501 judgements is static, yet, judge the pixel of checking in the block once more through present embodiment, just can determine to check that the pixel that the comb type may take place in the block makes the release of an interleave of single game interpolation (BOB) and handle, check that the release of an interleave that the pixel that the comb type can not take place in the block then follows the pixel value difference that gets according to 501 difference place to be motionadaptive handles, check the outer pixel of block also with.
Please note, though the step 603 of the foregoing description only proposes to merge the mode of field 101 and 102, those skilled in the art should know with reference to after the present embodiment, comb shape detecting unit 503 is except merging as above-mentioned embodiment the field 101 and 102, still can make the comb type in advance detects, the mode of its detection for example detects the two kinds of situations whether per three vertical adjacent pixels that merge the frame after 101 and 102 meet Figure 15, first kind of situation is as pixel P151, P152, the bright dark bright situation that P153 is general, second kind of situation then is as pixel P154, P155, the dark bright dark situation that P156 is general.After comb type detecting unit 503 detects well in advance, testing result is being delivered to release of an interleave format determination unit 504.Afterwards, release of an interleave format determination unit 504 should be made release of an interleave how and handle to judge above-mentioned pixel in specific inspection block again according to defined specific inspection block.
In addition, though the step 603 of this embodiment is after step 602, those skilled in the art should know with reference to after the present embodiment, step 603 and step 602 should be can parallel processing, and present embodiment is only done so ordering for convenience of description, so the present invention should not be limited to this embodiment.
Same reason can be made correct release of an interleave to the field of Fig. 3 and be handled with the embodiment of above-mentioned Fig. 5 and Fig. 6 at this.Below just explain in conjunction with Fig. 5 and Fig. 6 with Fig. 3.At first, just pixel difference unit 501 begins adjacent strange (or idol) 301,303 done the action of subtracting each other, corresponding the subtracting each other of each pixel in the strange field 301 and 303 obtains a difference field, as Figure 11 (step 601).As can be seen, the part of " OK " almost completely free dynamically (motion) takes place in Figure 11, and therefore, the pixel of the part of this " OK " will be judged as static state (just being applicable to occasion and processing).
Next, check the difference field that block definition unit 502 receives as Figure 11, and find out a specific inspection block (step 602) according to this difference field.Same, with the means of above-mentioned Fig. 8 A or Fig. 8 B, just can iris out specific inspection block, as Figure 12 ash color part.Yet, can find out obviously that in Figure 12 the part of " OK " is not in specific inspection block, the zone of single pendulum swing can be dropped in the inspection area that specific inspection block is irised out.
Next step, merging field 301 and 302 is a particular frame (step 603).With respect to Fig. 5 embodiment, comb shape detecting unit 503 received fields 301 and 302 are merged into a frame with it.The comb shape phenomenon check result that merges can be with reference to Figure 13 (black partly represents to have the comb shape phenomenon to exist).Please note, " OK " block 1301 of Figure 13 can see, two continuous occasions and after, can produce the phenomenon of bright dark staggered comb shape (combing), because this part can not ensphered in the specific inspection block, so the pixel of this block still can be according to previous result's the static state that is judged to be.At last, receive the particular frame that above-mentioned comb shape detecting unit 503 is exported by release of an interleave format determination unit 504, and to check that block definition unit 502 defined specific inspection blocks go to check the comb shape phenomenon of this particular frame, because dropping on, " OK " block 1301 checks outside the block, check result still is the judged result of pixel difference unit, " OK " block 1301 still use occasion also the mode of (WEAVE) make release of an interleave (step 604).Therefore, also solved the defective of film flicker that prior art causes.
Same, though only propose to merge the mode of field 301 and 302 in the step 603 of this embodiment, but having, this area knows that usually the knowledgeable should know with reference to after the present embodiment, comb shape detecting unit 503 is except merging as above-mentioned embodiment the field 301 and 302, still can make comb type as discussed previously in advance detects, afterwards, release of an interleave format determination unit 504 is again according to defined specific inspection block, inspection should be made release of an interleave how and handle to judge above-mentioned pixel in specific inspection block in above-mentioned specific inspection block.
In sum, the present invention is because of adopting according to the difference field, find out specific inspection block, and the comb shape phenomenon of the specific inspection block in the synthetic frame in adjacent place is checked in utilization, in the release of an interleave mode of decision to the field, therefore except the de-interleaving solution strategy that can guarantee correct judgement video signal, the de-interleaving solution strategy mistake that also can avoid prior art to take place is with the quality of the video signal behind the realization enhancement release of an interleave.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those skilled in the art can do some changes and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (15)
1. video de-interleaving solution strategy determining method comprises:
Subtract each other corresponding with a plurality of pixels in the i+2 field of i field obtained a difference field;
According to this difference field, difference and the one or more acquiescence pixel value that is received compared, find out a specific inspection block;
Merge i field and i+1 field or merge the i+1 field and the i+2 field is a particular frame; And
Check the comb shape phenomenon of this specific inspection block in this particular frame, in the release of an interleave mode of decision to the pixel in this specific inspection block,
Wherein i is a natural number.
2. video de-interleaving solution strategy determining method as claimed in claim 1, wherein the step of " finding out a specific inspection block " comprises:
From this difference field, the block that pixel difference is surrounded greater than a default value pixel is as this specific inspection block.
3. video de-interleaving solution strategy determining method as claimed in claim 1, wherein the step of " finding out a specific inspection block " comprises:
From this difference field, pixel difference is added an expanded range greater than one first block that a default value pixel is surrounded, as this specific inspection block.
4. video de-interleaving solution strategy determining method as claimed in claim 1 is prejudged a pre-release of an interleave mode according to this difference field.
5. video de-interleaving solution strategy determining method as claimed in claim 4, when the comb shape phenomenon of this specific inspection block in this particular frame during less than one first default value, decision with this pre-release of an interleave mode as the release of an interleave mode.
6. video de-interleaving solution strategy determining method as claimed in claim 4, when the comb shape phenomenon of this specific inspection block in this particular frame during greater than one second default value, decision is the release of an interleave mode with the another way that is different from this pre-release of an interleave mode.
7. video de-interleaving solution strategy determining method as claimed in claim 1, wherein i field and i+1 field are the field of different shape.
8. video de-interleaving solution strategy determining method as claimed in claim 1, wherein i field and i+2 field are the field of same modality.
9. video de-interleaving solution strategy decision systems comprises:
One pixel difference unit receives i field and i+2 field, and subtract each other corresponding with a plurality of pixels in the i+2 field of i field obtained a difference field;
One checks the block definition unit, couples this pixel difference unit, receives and according to this difference field, with difference and the comparison of one or more acquiescence pixel value that is received, finds out a specific inspection block;
One comb shape detecting unit receives i field and i+1 field, is a particular frame in order to merge i field and i+1 field; And
One release of an interleave format determination unit, couple this pixel difference unit, check block definition unit and this comb shape detecting unit, according to the testing result of the comb shape phenomenon of this specific inspection block in this particular frame, in the release of an interleave mode of decision to the pixel in this specific inspection block
Wherein i is a natural number.
10. video de-interleaving solution strategy decision systems as claimed in claim 9 wherein should be checked block definition unit more in order to from this difference field, and the block that pixel difference is surrounded greater than a default value pixel is as this specific inspection block.
11. video de-interleaving solution strategy decision systems as claimed in claim 9, should check wherein that the block definition unit was more in order to from this difference field, pixel difference is added an expanded range greater than one first block that a default value pixel is surrounded, as this specific inspection block.
12. video de-interleaving solution strategy decision systems as claimed in claim 9, when the comb shape phenomenon of this specific inspection block in this particular frame during less than one first default value, the pre-release of an interleave mode that this release of an interleave format determination unit decision is judged with difference field.
13. video de-interleaving solution strategy decision systems as claimed in claim 9, when the comb shape phenomenon of this specific inspection block in this particular frame during greater than one second default value, this release of an interleave format determination unit decision is the release of an interleave mode with the another way that is different from this pre-release of an interleave mode.
14. video de-interleaving solution strategy decision systems as claimed in claim 9, wherein i field and i+1 field are the field of different shape.
15. video de-interleaving solution strategy decision systems as claimed in claim 9, wherein i field and i+2 field are the field of same modality.
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