CN100495526C - Device and method for improving rolling image zooming quality - Google Patents
Device and method for improving rolling image zooming quality Download PDFInfo
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- CN100495526C CN100495526C CNB2005100846514A CN200510084651A CN100495526C CN 100495526 C CN100495526 C CN 100495526C CN B2005100846514 A CNB2005100846514 A CN B2005100846514A CN 200510084651 A CN200510084651 A CN 200510084651A CN 100495526 C CN100495526 C CN 100495526C
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Abstract
This invention provides an image process device, which testes the rolling direction of a first image and reduces and enlarges the first image. The device includes a test module for picking up the character value of the first image and testing its rolling direction and outputting directional signals and line different signal, a reduce and enlarge module connected to the test module for referencing the directional signal and line different signal and receiving ratio signals to reduce and enlarge the first image and out putting the second image.
Description
Technical field
The invention relates to a kind of device and method of Flame Image Process, particularly a kind of digital picture scrolling that detects, and dwindle the treating apparatus and the method thereof of amplifying this digital picture according to the scrolling direction.
Background technology
Traditional Flame Image Process, be to take fixed-point type to remove, duplicate or interpolation method is dwindled or the enlarged image source, but if image is with scroll mode and still handles with fixed-point type now, then the user will see that image is trembling and glimmering, watch image for a long time attentively, just can cause the problem of user's the blurring of image.
We see that through regular meeting picture has the situation of scrolling, as scroll up, downward scrolling or the like.Reach the effect of picture rolling, be not that the image graphic that will show moves, but as shown in Figure 1, move down by a mobile visual range (Field), this visual range then is the scope of corresponding screen display, makes the audience think that picture scrolls up.On the other hand, for example if will will be just the image at scrolling dwindle, then be further in visual range, to set to delete point with reference to comparison list.Shown in Fig. 2 (a),
When receive the rate signal (not shown) with information be
Multiplying power the time, produce the table of comparisons 20 and comprise secondary area section field 32,34,36,38,40 and 42, content 01 representative of secondary area section field remains unchanged, and 00 representative deletion.Moreover, comprise many sections in the visual range 22, one of them section 24 comprise six secondary area section 32a, 34a, 36a, 38a, 40a and 42a respectively with the table of comparisons in secondary area section field corresponding mutually, wherein these secondary area sections are the collection of pixels on the same horizontal direction.Therefore, with the section 24 in the visual range 22, just after dwindling shown in Fig. 2 (b), the secondary area section 38a in the section 24 is deleted to be fallen, and following secondary area section 40a and the 42a of 38a upwards fills up.At this moment, for other section in the visual range 22, also be to dwindle each section with reference to the table of comparisons 20.
For example if will then be further in visual range, to set newly-increased point with just in the image amplification of scrolling with reference to comparison list.Shown in Fig. 3 (a), when receive the rate signal (not shown) with information be
Multiplying power the time, produce the table of comparisons 50 and comprise secondary area section field 52,54,56,58,60 and 62, content 01 representative of secondary area section field remains unchanged, and 10 representatives increase to original twice.Moreover, comprise many sections in the visual range 64, one of them section 66 comprise six secondary area section 52a, 54a, 56a, 58a, 60a and 62a respectively with the table of comparisons in secondary area section field corresponding mutually, wherein these secondary area sections are the collection of pixels on the same horizontal direction.Therefore, with the section 66 in the visual range 64, just after amplification shown in Fig. 3 (b), the secondary area section 58a in the section 66 has been replicated one.Certainly, for other section in the visual range 64, also be to amplify each section with reference to the table of comparisons 50.
In other words, prior art is when dwindling or amplify the image of scrolling, produced the table of comparisons according to rate signal before this, according to the table of comparisons visual range is divided into a plurality of sections again, the secondary area section in each section is with reference to the decision of the secondary area section field in table of comparisons deletion or newly-increased pairing secondary area section.Wherein set deletion or newly-increased secondary area Duan Ze is a fixed-point type with reference to the table of comparisons, when visual range moves, the deletion point that these are fixing or newly-increased putting can't change.
In sum, dwindling or amplifying as in visual range being unit with the section of image graphic removes the secondary area section of ad-hoc location or newly-increased with reference to the table of comparisons, but if image is also just when scrolling, remove or newly-increased secondary area Duan Zehui causes the user will see the state that image trembles and glimmers with fixed, watch image just can cause the problem of user's the blurring of image for a long time.
Summary of the invention
The invention provides a kind of image processing apparatus, detect the scrolling direction and convergent-divergent first image of first image.This image processing apparatus comprises detection module, in order to the eigenwert of extracting first image and the scrolling direction of detected image, and outbound course signal and row difference signal; And Zoom module, be connected in detection module, in order to reference direction signal and row difference signal, and the acceptance rate signal wherein shows this second image in order to convergent-divergent first image and export second image in visual range.
The present invention also provides a kind of image processing method, in order to scrolling direction and this first image of convergent-divergent that detects first image.This image processing method comprises the eigenwert of extracting first image scrolling direction in order to detected image, and outbound course signal and row difference signal; The acceptance rate signal, and according to this rate signal generation table of comparisons; And receive first image, and with reference to the table of comparisons, direction signal and row difference signal, convergent-divergent first image is exported second image, wherein shows this second image in visual range.
The present invention also provides a kind of image processing apparatus, in order to scrolling direction and this first image of convergent-divergent that detects first image, this image processing apparatus comprises: detection module, in order to the eigenwert of extracting this first image and the scrolling direction that detects this image, and outbound course signal and row difference signal; And Zoom module, be connected in this detection module, in order to reference to this direction signal and this row difference signal, and the acceptance rate signal wherein shows this second image in order to this first image of convergent-divergent and export second image in visual range; Wherein this Zoom module produces the table of comparisons according to this rate signal, and this table of comparisons is provided with an initial reference point, and when this first image of convergent-divergent, this initial reference point is can be along with the time changes and changes.
Image processing apparatus of the present invention and method are in order to convergent-divergent first image according to rate signal, direction signal and row difference signal, wherein be provided with initial reference point according to the table of comparisons that rate signal produces, the initial reference point time of can following changes and changes when convergent-divergent first image, and the factor that changes is relevant with direction signal and row difference signal, can improve the quality behind the convergent-divergent when making convergent-divergent scrolling image by this, prior art problems is greatly improved.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Fig. 1 is for realizing the synoptic diagram of picture rolling effect.
Fig. 2 (a) and 2 (b) are the downscaled images synoptic diagram.
Fig. 3 (a) and 3 (b) are the enlarged image synoptic diagram.
Fig. 4 improves the method flow diagram of rolling image pantagraph quality for the present invention.
Fig. 5 is the method flow diagram of detected image scrolling of the present invention.
Fig. 6 produces the method flow diagram of an embodiment of the table of comparisons according to rate signal for the present invention.
Fig. 7 produces the synoptic diagram of an embodiment of the table of comparisons according to rate signal for the present invention.
Fig. 8 (a) is the synoptic diagram that dwindles an embodiment of scrolling image according to the present invention to 8 (d).
Fig. 9 is the synoptic diagram of the table of comparisons 70 changes.
Figure 10 (a) is the synoptic diagram that amplifies an embodiment of scrolling image according to the present invention to 10 (d).
Figure 11 is the synoptic diagram of the table of comparisons 80 changes.
Figure 12 produces the method flow diagram of another embodiment of the table of comparisons according to rate signal for the present invention.
Figure 13 (a) and 13 (b) produce the synoptic diagram of another embodiment of the table of comparisons according to rate signal for the present invention.
Figure 14 (a) is the synoptic diagram that dwindles another embodiment of scrolling image according to the present invention to 14 (d).
Figure 15 is the synoptic diagram of the table of comparisons 90 changes.
Figure 16 (a) is the synoptic diagram that amplifies another embodiment of scrolling image according to the present invention to 16 (d).
Figure 17 is the synoptic diagram of the table of comparisons 100 changes.
Figure 18 is for improving the device calcspar of rolling image pantagraph quality according to the present invention.
Figure 19 is the calcspar according to detection module in one embodiment of the invention 302.
Figure 20 is the calcspar according to Zoom module in one embodiment of the invention 304.
[main element label declaration]
20: the table of comparisons 22: visual range 24: section
32,34,36,38,40: secondary area section field
32a, 34a, 36a, 38a, 40a, 42a: secondary area section
50: the table of comparisons 64: visual range
66: section
52,54,56,58,60,62: secondary area section field
52a, 54a, 56a, 58a, 60a, 62a: secondary area section
70,70 ', 70 ", 70 " ': the table of comparisons
72,73,74,75,76,77: secondary area section field
72 ', 73 ', 74 ', 75 ', 76 ', 77 ': secondary area section field
72 ", 73 ", 74 ", 75 ", 76 ", 77 ": secondary area section field
72 " ', 73 " ', 74 " ', 75 " ', 76 " ', 77 " ': secondary area section field
72a, 73a, 74a, 75a, 76a, 77a: secondary area section
72a ', 74a ', 75a ', 76a ', 77a ': secondary area section
1000: initial reference point 1002: visual range
1004: section 1004 ': section
80,80 ', 80 ", 80 " ': the table of comparisons
82,83,84,85,86,87: secondary area section field
82 ', 83 ', 84 ', 85 ', 86 ', 87 ': secondary area section field
82 ", 83 ", 84 ", 85 ", 86 ", 87 ": secondary area section field
82 " ', 83 " ', 84 " ', 85 " ', 86 " ', 87 " ': secondary area section field
82a, 83a, 84a, 85a, 86a, 87a: secondary area section
82a ', 83a ', 84a ', 85a ', 86a ', 87a ': secondary area section
2000: initial reference point 2002: visual range
2004: section 2004 ': section
90,90 ', 90 ", 90 " ': the table of comparisons
92,93,94,95,96,97,98: secondary area section field
92 ', 93 ', 94 ', 95 ', 96 ', 97 ', 98 ': secondary area section field
92 ", 93 ", 94 ", 95 ", 96 ", 97 ", 98 ": secondary area section field
92 " ', 93 " ', 94 " ', 95 " ', 96 " ', 97 " ', 98 " ': secondary area section field
92a, 93a, 94a, 95a, 96a, 97a, 98a: secondary area section
92a ', 93a ', 94a ', 95a ', 96a ', 97a ', 98a ': secondary area section
94b ', 96b ', 98b ': secondary area section
3000: initial reference point 3002: visual range
3004: section 3004 ': section
100,100 ', 100 ", 100 " ': the table of comparisons
102,103,104: secondary area section field
102 ', 103 ', 104 ': secondary area section field
102 ", 103 ", 104 ": secondary area section field
102 " ', 103 " ', 104 " ': secondary area section field
102a, 103a, 104a: secondary area section
102a ', 103a ', 104a ': secondary area section
1021b, 1022b, 1023b, 1031b, 1032b, 1041b, 1042b: secondary area section
1021b ', 1022b ', 1031b ', 1032b ', 1041b ', 1042b ', 1043b ': secondary area section
4000: initial reference point 4002: visual range
4004: section 4004 ': section
300: device calcspar 302 of the present invention: detection module
304: Zoom module 306: memory module
308: processor 310: direction signal
312: row difference signal 314: rate signal
318: the second images of 316: the first images
302-1: acquisition module 302-2: decision-making module
302-3: the first characteristic signal 302-4: second characteristic signal
302-5: feature difference 302-6: feature difference absolute value
302-7: decision signal
302-2-1: storage element 302-2-2: computing unit
302-2-3: judging unit
304-1: rate conversion unit 304-2: unit for scaling
Embodiment
The invention provides a kind of image processing apparatus, detect the scrolling direction and convergent-divergent first image of first image.This image processing apparatus comprises detection module, in order to the eigenwert of extracting first image and the scrolling direction of detected image, and outbound course signal and row difference signal; And Zoom module, be connected in detection module, in order to reference direction signal and row difference signal, and the acceptance rate signal is in order to convergent-divergent first image and export second image.
Please refer to Fig. 4, Fig. 4 improves the method flow diagram of rolling image pantagraph quality for the present invention.The step that the present invention comprised is as follows:
Step S20: the direction of detected image scrolling.
Step S22: outbound course signal and row difference signal.
Step S24: produce the table of comparisons according to rate signal.
Step S26: with reference to the table of comparisons, direction signal and row difference signal convergent-divergent first image.
Step S20 wherein, the direction of detected image scrolling also comprises many steps, please refer to Fig. 5, and Fig. 5 is the method flow diagram of detected image scrolling of the present invention.
Step S202: the start address of obtaining visual range.
Step S204:, produce first characteristic signal according to start address.
Step S206: first eigenwert that stores first characteristic signal.
Step S208: the start address after obtaining visual range and moving, and produce second characteristic signal.
Step S210:, produce decision signal according to first characteristic signal and second characteristic signal.
Step S212: store second eigenwert to replace first eigenwert.
Step S214: wait for that visual range moves.
Step S214 is the state of a wait, if visual range has moved, then execution in step 208; If visual range does not move, then maintain step 214.
In addition, step S24 also comprises many steps, please refer to Fig. 6, and Fig. 6 is the method flow diagram of the present invention according to an embodiment of the rate signal generation table of comparisons, and its step is as follows:
S2402: the inverse of this convergent-divergent multiplying power is added up by zero in the equal difference mode, get at least one arithmetic progression.
S2404: each of arithmetic progression is rounded up, obtain the ordered series of numbers of a positive integer.
S2406:, pairing secondary area section field is inserted numerical value in the table of comparisons with the binary number of at least one with reference to the ordered series of numbers of this positive integer.
In step S2404, with each just wherein a kind of method that rounds up.Another embodiment is for unconditionally casting out each of arithmetic progression, or gets Gaussian integer ... or the like, be not to have only a kind of method.
Please refer to Fig. 7, Fig. 7 produces the synoptic diagram of an embodiment of the table of comparisons according to rate signal for the present invention.With rate signal be
Multiplying power be example, with multiplying power
Get inverse and add up 4 by 0, produce an ordered series of numbers and be 0,
And
Totally 5; After each being rounded up, get 0,1,2,4 and 5, because digital corresponding field, digital occurrence number is a field contents again, as: 0 occurs once, inserts 01,1 and occur once in the 0th hurdle, inserts 01 in the 1st hurdle, by that analogy.And in the ordered series of numbers and nil 3, therefore insert 00 in the 3rd hurdle.So just, obtaining a rate signal is
Multiplying power the time the table of comparisons.With rate signal be again in addition
Multiplying power be example, with multiplying power
Get inverse and add up 6 by 0, produce ordered series of numbers and be 0,
And
Totally 7; After each being rounded up, get 0,1,2,3,3,4 and 5, because digital corresponding field, digital occurrence number is a field contents again, as: 0 occurs once, inserts 01,1 and occur once in the 0th hurdle, inserts 01 in the 1st hurdle, by that analogy.And numeral 3 occurs twice in the ordered series of numbers, therefore inserts 10 in the 3rd hurdle.So just, obtain a rate signal
Multiplying power the time the table of comparisons.
Please refer to Fig. 8, Fig. 8 is for dwindling the synoptic diagram of an embodiment of scrolling image according to the present invention.In Fig. 8 (a), the table of comparisons 70 according to rate signal is
Multiplying power produce, and be provided with initial reference point 1000, therefore secondary area section 72a, 73a, 74a, 75a, 76a and the 77a that section 1004 is comprised one of in the visual range 1002 and secondary area section field 72,73,74,75,76 and 77 distinguish corresponding, just after dwindling shown in Fig. 8 (b) the sample attitude of section 1004.Certainly also be to dwindle each section with reference to the table of comparisons 70 this moment for other section in the visual range 1002.
In next constantly, the direction (direction that visual range 1002 moves) that system will the detected image scrolling and calculate the trip difference.For instance, system detects image and scrolls up (visual range moves down) two row, therefore the initial reference point 1000 with the table of comparisons 70 moves down two units shown in Fig. 8 (c), this moment, secondary area section 72a ', 73a ', 74a ', 75a ', 76a ' and the 77a ' in the section 1004 ' was corresponding with secondary area section field 72 ', 73 ', 74 ', 75 ', 76 ' and 77 ' respectively, just and after dwindling shown in Fig. 8 (d) the sample attitude of section 1004 '.From another angle, the deleted secondary area section 73a ' of the deleted secondary area section 75a of preceding state Fig. 8 (a) and next constitutional diagram 8 (c) is identical secondary area section, promptly be that to change the secondary area section that the position of initial reference point 1000 makes former and later two states delete be identical, so just can allow the difference sense of the imperceptible front and back of audience state.
In other words, the table of comparisons 70 is along with time fluctuation.The above-mentioned example that continues, system detects image and fixedly scrolls up (visual range moves down) two row, and then the synoptic diagram of the table of comparisons 70 changes is then as shown in Figure 9.Aspect when the table of comparisons 70 among Fig. 9 is Fig. 8 (a), the aspect the when table of comparisons 70 ' is Fig. 8 (c), the table of comparisons 70 that the rest may be inferred continues " and 70 ' ' ' aspect.
Please refer to Figure 10, Figure 10 is for amplifying the synoptic diagram of an embodiment of scrolling image according to the present invention.In Figure 10 (a), the table of comparisons 80 according to rate signal is
Multiplying power produce, and be provided with initial reference point 2000, therefore the secondary area section 82a, 83a, 84a, 85a, 86a and the 87a that are comprised of the section 2004 in the visual range 2002 and secondary area section field 82,83,84,85,86 and 87 distinguish corresponding, just after amplification shown in Figure 10 (b) the sample attitude of section 2004.Certainly also be to dwindle each section with reference to the table of comparisons 80 this moment for other section in the visual range 2002.
In next constantly, the direction (direction that visual range 2002 moves) that system will the detected image scrolling and calculate the trip difference.For instance, system detects image and scrolls up (visual range moves down) two row, therefore the initial reference point 2002 with the table of comparisons 80 moves down two units shown in Figure 10 (c), this moment, secondary area section 82a ', 83a ', 84a ', 85a ', 86a ' and the 87a ' in the section 2004 ' was corresponding with secondary area section field 82 ', 83 ', 84 ', 85 ', 86 ' and 87 ' respectively, just and after amplifying shown in Figure 10 (d) the sample attitude of section 2004 '.From another angle, the secondary area section 85a that preceding state Figure 10 (a) is replicated is identical secondary area section with the secondary area section 83a ' that next state Figure 10 (c) is replicated, make that the secondary area section of the secondary system of former and later two states institute is identical so need to change the position of initial reference point 2000, the difference sense that just can allow the imperceptible front and back of audience state like this.
In other words, the table of comparisons 80 is along with time fluctuation.The above-mentioned example that continues, system detects image and fixedly scrolls up (visual range moves down) two row, and then the synoptic diagram of the table of comparisons 80 changes is then as shown in figure 11.Aspect when the table of comparisons 80 among Figure 11 is Figure 10 (a), the aspect the when table of comparisons 80 ' is Figure 10 (c), the table of comparisons 80 that the rest may be inferred continues " and 80 " ' aspect.
According to another embodiment of the present invention, step S24 also comprises many steps among Fig. 4, please refer to Figure 12, and Figure 12 is the method flow diagram of the present invention according to another embodiment of the rate signal generation table of comparisons, and its step is as follows:
S2412: the inverse of this convergent-divergent multiplying power is added up by zero in the equal difference mode, get at least one arithmetic progression.
S2414: with each turns to mixed number in this arithmetic progression, wherein the part of proper fraction is the weight ratio, and integral part then is the secondary area section field of this weight ratio correspondence.
S2416: according to integral part the weight ratio of proper fraction part representative is inserted in the corresponding secondary area section field, do not had corresponding secondary area section field and then remain empty (null).
Please refer to Figure 13, Figure 13 produces the synoptic diagram of another embodiment of the table of comparisons according to rate signal for the present invention.Among Figure 13 (a), be with rate signal
Multiplying power be example, will be by 0 inverse that adds up the convergent-divergent multiplying power
Produce an arithmetic progression and be 0,
And
Turn to behind the mixed number be 0,
And
Wherein integral part is represented the secondary area section field that corresponding weight ratio should be inserted, and proper fraction is partly represented the weight ratio of synthetic two continuous secondary area sections, according to the integral part of each proper fraction is partly inserted in the table of comparisons.In addition in Figure 13 (b), be with rate signal
Multiplying power be example, by 0 inverse that adds up the convergent-divergent multiplying power
Produce an arithmetic progression and be 0,
And
Turn to behind the mixed number be 0,
And
Wherein integral part is represented the secondary area section field that corresponding weight ratio should be inserted, and proper fraction is partly represented the weight ratio of synthetic two continuous secondary area sections, according to the integral part of each proper fraction is partly inserted in the table of comparisons.
Please refer to Figure 14, Figure 14 is for dwindling the synoptic diagram of another embodiment of scrolling image according to the present invention.In Figure 14 (a), the table of comparisons 90 is to be according to rate signal
Multiplying power produce, and be provided with initial reference point 3000, therefore secondary area section 92a, 93a, 94a, 95a, 96a, 97a and the 98a that section 3004 is comprised one of in the visual range 3002 distinguishes corresponding with secondary area section field 92,93,94,95,96,97 and 98, according to the secondary area section field in the table of comparisons secondary area section in the picture is synthetic with the weight ratio of correspondence, i.e. secondary area section 92a quality
Doubly with secondary area section 93a quality
Doubly synthesize the secondary area section 92b among Figure 14 (b), secondary area section 94a quality
Doubly with secondary area section 95a quality
Doubly synthesize the secondary area section 94b among Figure 14 (b), secondary area section 96a quality
Doubly with secondary area section 97a quality
Secondary area section 96b among doubly synthetic Figure 14 (b).Certainly also be to dwindle each section with reference to the table of comparisons 90 and identical method this moment for other section in the visual range 3002.
In next constantly, the direction (direction that visual range 3002 moves) that system will the detected image scrolling and calculate the trip difference.For instance, system detects the downward scrolling of image (visual range moves up) two row, therefore the initial reference point 3000 with the table of comparisons 90 moves up two units shown in Figure 14 (c), secondary area section 92a ', 93a ', 94a ', 95a ', 96a ', 97a ' and 98a ' in the section 3004 ' is corresponding with secondary area section field 92 ', 93 ', 94 ', 95 ', 96 ', 97 ' and 98 ' respectively at this moment, according to the secondary area section field in the table of comparisons secondary area section in the picture is synthetic with the weight ratio of correspondence, i.e. secondary area section 94a ' quality
Doubly with secondary area section 95a ' quality
Doubly synthesize the secondary area section 94b ' among Figure 14 (d), secondary area section 96a ' quality
Doubly with secondary area section 97a ' quality
Doubly synthesize the secondary area section 96b ' among Figure 14 (d), secondary area section 98a ' quality
Doubly with secondary area section 99a ' (in the continuous section of the next one) quality so demonstration
Secondary area section 98b ' among doubly synthetic Figure 14 (b).Certainly also be to dwindle each section with reference to the table of comparisons 90 and identical method this moment for other section in the visual range 3002.From another angle, the secondary area section 94b ' that the secondary area section 92b that preceding state Figure 14 (b) is synthesized and next state Figure 14 (d) are synthesized, its composition all is identical, promptly be that the position that changes initial reference point 3000 makes that the secondary area section that former and later two states synthesize is identical composition, the difference sense that just can allow the imperceptible front and back of audience state like this.
In other words, the table of comparisons 90 is along with time fluctuation.The above-mentioned example that continues, system detects fixing downward scrolling (visual range moves up) two row of image, and then the synoptic diagram of the table of comparisons 90 changes is then as shown in figure 15.Aspect when the table of comparisons 90 among Figure 15 is Figure 14 (a), the aspect the when table of comparisons 90 ' is Figure 14 (c), the table of comparisons 90 that the rest may be inferred continues " and 90 ' ' ' aspect.
Please refer to Figure 16, Figure 16 is for amplifying the synoptic diagram of another embodiment of scrolling image according to the present invention.In Figure 16 (a), the table of comparisons 100 is to be according to rate signal
Multiplying power produce, and be provided with initial reference point 4000, therefore secondary area section 102a, 103a and the 104a that section 4004 is comprised one of in the visual range 4002 distinguishes corresponding with secondary area section field 102,103 and 104, according to the secondary area section field in the table of comparisons secondary area section in the picture is synthetic with the weight ratio of correspondence, i.e. secondary area section 102a quality
Doubly with secondary area section 103a quality
Doubly synthesize the secondary area section 1021b among Figure 16 (b), secondary area section 102a quality
Doubly with secondary area section 103a quality
Doubly synthesize the secondary area section 1022b among Figure 16 (b), secondary area section 102a quality
Doubly with secondary area section 103a quality
Secondary area section 1023b among doubly synthetic Figure 16 (b); Secondary area section 103a quality
Doubly with secondary area section 104a quality
Doubly synthesize the secondary area section 1031b among Figure 16 (b), secondary area section 103a quality
Doubly with 7 times of secondary area section 1032b that synthesize among Figure 16 (b) of secondary area section 104a quality; Secondary area section 104a quality
Doubly with secondary area section 105a (in the continuous section of the next one, not being shown among the figure) quality
Doubly synthesize the secondary area section 1041b among Figure 16 (b), secondary area section 104a quality
Doubly with secondary area section 105a quality
Doubly synthesize the secondary area section 1042b among Figure 16 (b).Certainly also be to amplify each section with reference to the table of comparisons 100 and identical method this moment for other section in the visual range 4002.
In next constantly, the direction (direction that visual range 4002 moves) that system will the detected image scrolling and calculate the trip difference.For instance, system detects the downward scrolling of image (visual range moves up) two row, therefore the initial reference point 4000 with the table of comparisons 100 moves up two units shown in Figure 16 (c), secondary area section 102a ', 103a ' and 104a ' in the section 4004 ' is corresponding with secondary area section field 102 ', 103 ' and 104 ' respectively at this moment, according to the secondary area section field in the table of comparisons secondary area section in the picture is synthetic with the weight ratio of correspondence, i.e. secondary area section 102a ' quality
Doubly with secondary area section 103a ' quality
Doubly synthesize the secondary area section 1021b ' among Figure 16 (d), secondary area section 102a ' quality
Doubly with secondary area section 103a ' quality
Doubly synthesize the secondary area section 1022b ' among Figure 16 (d); Secondary area section 103a ' quality
Doubly with secondary area section 104a ' quality
Doubly synthesize the secondary area section 1031b ' among Figure 16 (d), secondary area section 103a ' quality
Doubly with secondary area section 104a ' quality
Doubly synthesize the secondary area section 1032b ' among Figure 16 (d); Secondary area section 104a ' quality
Doubly with secondary area section 105a ' (in the continuous section of the next one, not being shown on the figure) quality
Doubly synthesize the secondary area section 1041b ' among Figure 16 (d), secondary area section 104a ' quality
Doubly with secondary area section 105a ' quality
Doubly synthesize the secondary area section 1042b ' among Figure 16 (d), secondary area section 104a ' quality
Doubly with secondary area section 105a ' quality
Secondary area section 1043b ' among doubly synthetic Figure 16 (d).Certainly also be to amplify each section with reference to the table of comparisons 100 and identical method this moment for other section in the visual range 4002.From another angle, for instance, the secondary area section 1032b ' that the secondary area section 1022b that preceding state Figure 16 (b) is synthesized and next state Figure 16 (d) are synthesized, its composition all is identical, promptly be that the position that changes initial reference point 4000 makes that the secondary area section that former and later two states synthesize is identical composition, the difference sense that just can allow the imperceptible front and back of audience state like this.
In other words, the table of comparisons 100 is along with time fluctuation.The above-mentioned example that continues, system detects fixing downward scrolling (visual range moves up) two row of image, and then the synoptic diagram of the table of comparisons 100 changes is then as shown in figure 17.Aspect when the table of comparisons 100 among Figure 17 is Figure 16 (a), the aspect the when table of comparisons 100 ' is Figure 16 (c), the table of comparisons 100 that the rest may be inferred continues " and 100 ' ' ' aspect.
Please refer to Figure 18, Figure 18 is for improving the device calcspar of rolling image pantagraph quality according to the present invention.Apparatus according to an embodiment of the present invention 300 comprises detection module 302, Zoom module 304, memory module 306 and processor 308, and wherein memory module 306 is in order to store the data of picture; Processor 308 is connected with memory module, in order to handle the picture image data in the memory module 306 and to transmit detection module 302 and data that Zoom module 304 is required; Detection module 302 is connected in processor 308 in order to the eigenwert of extracting this first image and the scrolling direction that detects this image and outbound course signal 310 and row difference signal 312; And Zoom module 304 is connected in detection module 302, and in order to reference direction signal 306 and row difference signal 308, and acceptance rate signal 314 is in order to convergent-divergent first image 316 and export second image 318.
Please refer to Figure 19, Figure 19 is the calcspar according to detection module in one embodiment of the invention 302.Detection module 302 comprises acquisition module 302-1 and decision-making module 302-2; Wherein decision-making module 302-2 comprises storage element 302-2-1 and is connected in this acquisition module 302-1, computing unit 302-2-2 and is connected in this acquisition module 302-1 and this storage element 302-2-1 and judging unit 302-2-3 and is connected in this computing unit 302-2-2.
The start address (SA) of acquisition module 302-1 in order to obtain visual range, and, this start address correspondence is gone out delegation number (line number) in order to produce the first characteristic signal 302-3 according to this start address; Storage element 302-2-1 receives the first characteristic signal 302-3, and first eigenwert is stored in wherein.
After visual range moved, acquisition module 302-1 obtained the start address (SA) of visual range once more, and produced the second characteristic signal 302-4 in an identical manner; Computing unit 302-2-2 receives the second characteristic signal 302-4, to obtain second eigenwert, and with reference to first eigenwert among the storage element 302-2-1, second eigenwert is deducted first eigenwert produce feature difference 302-5, the back that again this feature difference 302-5 taken absolute value produces feature difference absolute value 302-6.After computing unit 302-2-2 produces feature difference 302-5 and feature difference absolute value 302-6, second eigenwert returned be stored among the storage element 302-2-1 reference when treating that calculate next time.
When visual range was mobile once more, acquisition module 302-1 obtained the start address (SA) of visual range once more, and produces the 3rd characteristic signal in an identical manner; Computing unit 302-2-2 receives the 3rd characteristic signal, to obtain the 3rd eigenwert, and with reference to second eigenwert among the storage element 302-2-1, the 3rd eigenwert is deducted second eigenwert produce feature difference, the back that again this feature difference taken absolute value produces feature difference absolute value.After computing unit 302-2-2 produces feature difference and feature difference absolute value, the 3rd feature returned be stored among the storage element 302-2-1 reference when treating that calculate next time.
Above-mentioned generation feature difference and feature difference absolute value are round-robin operation, as long as visual range moves, then can trigger this operation, and all be that eigenwert after this is moved is made comparisons with the last eigenwert that moves, with the direction of determining that visual range moves, and then learn the direction of picture rolling.
On the other hand, judging unit 302-2-3 is in order to receiving feature difference 302-5 and feature difference absolute value 302-6, and according to feature difference 302-5 and feature difference absolute value 302-6, produces decision signal 302-7.When feature difference 302-5 greater than zero and this feature difference absolute value 302-6 less than characteristic offset values and feature difference absolute value 302-6 less than previous visible height, then produce and scroll up decision signal; And when feature difference 302-5 less than zero and feature difference absolute value 302-6 less than characteristic offset values and feature difference absolute value 302-5 less than present visible height, then produce downward scrolling decision signal; Except upwards or the downward direction, decision signal 302-7 also comprises the line number of scrolling.
According to detection module in one embodiment of the invention 302 is to utilize the corresponding trip of start address of visual range number to produce the first characteristic signal 302-3, and after visual range moves, produce the second characteristic signal 302-4 in the same way once more, again according to first eigenwert and second eigenwert, produce feature difference and feature difference absolute value, receive and judge the scrolling direction of image by judging unit 302-2-3, and output decision signal 302-7, decision signal 302-7 comprise direction signal 310 and row difference signal 312.
Please refer to Figure 20, Figure 20 is the calcspar according to Zoom module in one embodiment of the invention 304.Zoom module 304 comprises rate conversion unit 304-1 and unit for scaling 304-2, wherein rate conversion unit 304-1 produces the table of comparisons in order to acceptance rate signal 314 and according to rate signal 314, and in addition rate conversion unit 304-1 also receives and the reference direction signal 310 and the initial reference point of difference signal 312 in order to the change table of comparisons of going.Zoom module 304-2 is in order to receiving first image 316, and is connected with rate conversion unit 314, comes convergent-divergent first image 316 in order to the reference table of comparisons, exports second image 318.Behind the rate conversion unit 304-1 acceptance rate signal 314 among the figure, the process that how to produce the table of comparisons illustrates in the above embodiments, does not repeat them here.
Device and method compared to existing convergent-divergent scrolling image, the device and method that improves rolling image pantagraph quality of the present invention is that the corresponding section of convergent-divergent is come in the initial reference position that utilize to change the table of comparisons, make the observer for dwindle or amplifies after the scrolling image do not feel to glimmer or lofty; Further make the picture smoothness, also ensured observer's eyesight, overcome the inevasible problem of prior art.
By the above detailed description of preferred embodiments, be that hope can be known description feature of the present invention and spirit more, and be not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category of claim scope of being arranged in of various changes and tool equality institute of the present invention desire application.
Claims (18)
1, a kind of image processing apparatus, in order to scrolling direction and this first image of convergent-divergent of detecting first image, this image processing apparatus comprises:
Detection module, in order to the eigenwert of extracting this first image and the scrolling direction that detects this image, and outbound course signal and row difference signal; And
Zoom module is connected in this detection module, and in order to reference to this direction signal and this row difference signal, and the acceptance rate signal wherein shows this second image in order to this first image of convergent-divergent and export second image in visual range.
2, image processing apparatus according to claim 1, wherein this detection module comprises acquisition module, in order to obtaining the start address of visual range, and according to this start address, produces first characteristic signal.
3, image processing apparatus according to claim 2, wherein after this visual range moves, this acquisition module obtains the start address of this visual range once more, and produces second characteristic signal, and this second characteristic signal is to result from after this first characteristic signal.
4, image processing apparatus according to claim 3, wherein this detection module comprises decision-making module, be connected in this acquisition module in order to receive described first characteristic signal and second characteristic signal, and to produce decision signal, this decision signal comprises the information of the scrolling direction of this first image according to described first characteristic signal and second characteristic signal.
5, image processing apparatus according to claim 4, wherein this decision-making module comprises:
Storage element is connected in this acquisition module, in order to store first eigenwert of this first characteristic signal;
Computing unit is connected in this acquisition module and this storage element, in order to receive this second characteristic signal and with reference to the stored content of this storage element, to calculate feature difference and feature difference absolute value; And
Judging unit is connected in this computing unit, in order to receiving this feature difference and this feature difference absolute value, and according to this feature difference and this feature difference absolute value, produces this decision signal;
Wherein this feature difference deducts this first eigenwert for second eigenwert of this second characteristic signal, and this feature difference absolute value takes absolute value for after this second eigenwert deducts this first eigenwert again.
6, image scrolling pick-up unit according to claim 5, wherein this judging unit produces this decision signal according to following rule:
When this feature difference greater than zero and this feature difference absolute value less than characteristic offset values and this feature difference absolute value less than previous visible height, then produce and scroll up decision signal, with the being seen image of expression user for scrolling up; And
When this feature difference less than zero and this feature difference absolute value less than this characteristic offset values and this feature difference absolute value less than present visible height, then produce downward scrolling decision signal, be downward scrolling with the being seen image of expression user;
This characteristic offset values representative system side-play amount decided at the higher level but not officially announced wherein, this previous visible height are represented this visual range, and the height before the scrolling and this present visible height are not represented height behind this visual range scrolling.
7, image processing apparatus according to claim 1, wherein this Zoom module also comprises:
The rate conversion unit in order to receiving this rate signal, and produces the table of comparisons according to this rate signal; And
Unit for scaling is connected in this rate conversion unit in order to reference to this table of comparisons, and receives this first image, and this first image of convergent-divergent is exported second image.
8, image processing apparatus according to claim 7, wherein this unit for scaling can be divided at least one section with this first image, and each section comprises at least one secondary area section; And this table of comparisons is corresponding to each this section, and this table of comparisons comprises at least one secondary area section field, each this secondary area section field is corresponding to one to one the secondary area section of each this section, and wherein each this secondary area section field all comprises at least one position in order to the expression binary number.
9, image processing apparatus according to claim 8, this rate conversion unit obtains the convergent-divergent multiplying power by this rate signal
And inverse with this convergent-divergent multiplying power
Be used as tolerance in the equal difference mode by zero (n-1) Xiang Deyi arithmetic progression that adds up, and each of this arithmetic progression is converted with unalterable rules, and with reference to the ordered series of numbers after converting, pairing secondary area section field is inserted numerical value with the binary number of at least one, wherein these unalterable rules be selected from one of following: the computing that rounds up, unconditionally cast out computing, unimpeded access computing.
10, image processing apparatus according to claim 8, this unit for scaling be with reference to the secondary area section field in this table of comparisons, with secondary area section corresponding in this first image with following rule treatments:
When the binary number that is comprised when the secondary area section field in this table of comparisons equaled 0, this unit for scaling removed secondary area section corresponding in this first image;
When the binary number that is comprised when the secondary area section field in this table of comparisons equaled 1, this unit for scaling remained unchanged secondary area section corresponding in this first image; And
The binary number that is comprised when the secondary area section field in this table of comparisons is greater than 1 the time, and this unit for scaling duplicates secondary area section corresponding in this first image, duplicates the value of multiple for this binary number representative.
11, image processing apparatus according to claim 8, this rate conversion unit obtains a convergent-divergent multiplying power by this rate signal
And inverse with this convergent-divergent multiplying power
Be used as tolerance in the equal difference mode by the zero (n that adds up
-1) Xiang Deyi arithmetic progression, again with each turns to mixed number in this arithmetic progression, wherein the part of proper fraction is the weight ratio, integral part then is the pairing secondary area section of a weight ratio field.
12, image processing apparatus according to claim 11, this rate conversion unit is inserted the weight ratio of proper fraction part representative in the corresponding secondary area section field according to integral part, does not have corresponding secondary area section field and then remains empty; And when this first image has plural secondary area section, this unit for scaling then is according to this secondary area section field in this table of comparisons, in regular turn that the numerical data of two of this first image continuous secondary area sections is synthetic with unalterable rules, secondary area section after synthetic also is the numerical data that forms this second image according to this sequential combination
Wherein these unalterable rules are as follows:
If the weight ratio in the K hurdle secondary area section field is
The time, then with K secondary area section quality
Doubly with (K+1) individual secondary area section quality
Doubly synthetic, produce the secondary area section after synthesizing; And
If when the weight ratio in the K hurdle secondary area section field be empty, then ignore the operation that the individual secondary area section of K secondary area Duan Yudi (K+1) is synthesized.
13, image processing apparatus according to claim 12, this unit for scaling is to start from (n-1) hurdle finally, the 0th hurdle according to the order of the synthetic secondary area section of each this secondary area section field in this table of comparisons, if the weight ratio in the K hurdle secondary area section field is a plurality of, then with reference to the weight ratio in proper order for from left to right.
14, a kind of image processing apparatus, in order to scrolling direction and this first image of convergent-divergent of detecting first image, this image processing apparatus comprises:
Detection module, in order to the eigenwert of extracting this first image and the scrolling direction that detects this image, and outbound course signal and row difference signal; And
Zoom module is connected in this detection module, and in order to reference to this direction signal and this row difference signal, and the acceptance rate signal wherein shows this second image in order to this first image of convergent-divergent and export second image in visual range;
Wherein this Zoom module produces the table of comparisons according to this rate signal, and this table of comparisons is provided with an initial reference point, and when this first image of convergent-divergent, this initial reference point is can be along with the time changes and changes.
15, image processing apparatus according to claim 14, this initial reference point change in time and change regular as follows:
When this first image of content representation of this direction signal scrolled up, this initial reference point then moved down; And
When the downward scrolling of this first image of content representation of this direction signal, this initial reference point then moves up;
Wherein the unit that moves of this initial reference point is the content with reference to this row difference signal.
16, a kind of image processing method, in order to scrolling direction and this first image of convergent-divergent of detecting first image, this image processing method comprises:
The eigenwert of extracting this first image is in order to detecting the scrolling direction of this image, and outbound course signal and row difference signal;
The acceptance rate signal, and according to this rate signal generation table of comparisons; And
Receive this first image, and with reference to this table of comparisons, this direction signal and this row difference signal, this first image of convergent-divergent is exported second image, wherein in visual range, show this second image.
17, image processing method according to claim 16, this table of comparisons is provided with initial reference point, and when this first image of convergent-divergent, this initial reference point is can be along with the time changes and changes.
18, image processing method according to claim 17, this initial reference point change in time and change regular as follows:
When this first image of content representation of this direction signal scrolled up, this initial reference point then moved down; And
When the downward scrolling of this first image of content representation of this direction signal, this initial reference point then moves up;
Wherein the unit that moves of this initial reference point is the content with reference to this row difference signal.
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