CN104038749B - Image compensating device - Google Patents
Image compensating device Download PDFInfo
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- CN104038749B CN104038749B CN201310074101.9A CN201310074101A CN104038749B CN 104038749 B CN104038749 B CN 104038749B CN 201310074101 A CN201310074101 A CN 201310074101A CN 104038749 B CN104038749 B CN 104038749B
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Abstract
The invention discloses a kind of image compensating device, this image compensating device comprises a three-dimensional band pass filter, a three-dimensional band only filter, a three-dimensional band only mixed cell, a three-dimensional adder unit, a non-three-dimensional band only filter, a non-three-dimensional band pass filter, a non-three-dimensional band only mixed cell, the logical mixed cell of non-three-dimensional band and a non-three-dimensional adder unit.This three-dimensional band only mixed cell stops an output of filter for compensating this three-dimensional band.An output of only filter is with by this non-three-dimensional band only mixed cell for compensating this non-three-dimensional.The logical mixed cell of this non-three-dimensional band is for compensating an output of this non-three-dimensional band pass filter.The image compensating device of the present invention can avoid situation that is unstable in prior art and pore shape.
Description
[technical field]
The present invention relates to a kind of device, particularly a kind of image compensating device.
[background technology]
In simulated television, the composite video signal (compositevideosignal) of picture comprises a luminance signal (Y) and a carrier chrominance signal (C).Comb filter is generally used for this composite video signal to isolate luminance signal and carrier chrominance signal, and the process isolating luminance signal and carrier chrominance signal is called that Y/C is separated (Y/Cseparation).
Comb filter for separating of composite video signal comprises three kinds, and these three kinds of comb filters are divided into one dimension (1D) comb filter, two dimension (2D) comb filter and three-dimensional (3D) comb filter.One dimension comb filter and two-dimensional comb filter are non-three-dimensional (non-3D) comb filter.In general, when picture is dynamic, utilize non-three-dimensional comb filter to isolate luminance signal and carrier chrominance signal, when picture is static, utilize three-dimensional comb filter to isolate luminance signal and carrier chrominance signal.
When the picture of quiescent conditions is subject to noise effect, picture there will be the situation of slowly movement.Therefore, use non-three-dimensional comb filter can cause the situation of instability and pore shape (sparkle-like), that is, picture is not really move, but uses non-three-dimensional comb filter mistakenly.Therefore the luminance signal proposing a solution to compensate non-three-dimensional comb filter output is needed, to avoid the situation of above-mentioned instability and pore shape.
[summary of the invention]
One of the present invention object is to provide a kind of image compensating device.
A kind of image compensating device of the present invention comprises a three-dimensional band pass filter, a three-dimensional band only filter, a three-dimensional band only mixed cell, a three-dimensional adder unit, a non-three-dimensional band only filter, a non-three-dimensional band pass filter, a non-three-dimensional band only mixed cell, the logical mixed cell of non-three-dimensional band and a non-three-dimensional adder unit.This three-dimensional band pass filter is by the composition of a three-dimensional luminance signal in a frequency range of this carrier frequency of this chromatic component, and other composition of this three-dimensional luminance signal of filtering.The signal strength signal intensity of the composition of this three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component reduces by this three-dimensional band only filter.This three-dimensional is with one of only filter output to mix with a three-dimensional compensating signal by this three-dimensional band only mixed cell.This three-dimensional adder unit exports one of this three-dimensional band pass filter to be with this three-dimensional and stops one of mixed cell and export and be added to produce one and compensated three-dimensional luminance signal.The signal strength signal intensity of the composition of one non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component reduces by this non-three-dimensional band only filter.This non-three-dimensional band pass filter is by the composition of this non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component, and other composition of this non-three-dimensional luminance signal of filtering.This non-three-dimensional band only mixed cell according in a region of this current picture frame to whether similar and whether be a fringe region according to this region in continue this region of picture frame, the output this non-three-dimensional band being stopped filter mixes with this three-dimensional compensating signal is maybe with this output of only filter to mix with a non-three-dimensional compensating signal by this non-three-dimensional, when this region at this current picture frame is similar to this region at this picture frame that continues and this region is this fringe region, this non-three-dimensional is with this output of only filter to mix with this three-dimensional compensating signal by this non-three-dimensional band only mixed cell, otherwise, this non-three-dimensional is with this output of only filter to mix with this non-three-dimensional compensating signal by this non-three-dimensional band only mixed cell.Whether whether the logical mixed cell of this non-three-dimensional band similar to this region at this picture frame that continues and be this fringe region according to this region according to this region at this current picture frame, export one of this non-three-dimensional band pass filter and mix or direct this output by this non-three-dimensional band pass filter with this output of this three-dimensional band pass filter, when this region at this current picture frame is similar to this region at this picture frame that continues and this region is this fringe region, this output of this non-three-dimensional band pass filter mixes with this output of this three-dimensional band pass filter by the logical mixed cell of this non-three-dimensional band, otherwise, the logical mixed cell of this non-three-dimensional band is directly by this output of this non-three-dimensional band pass filter.This non-three-dimensional adder unit is by this non-three-dimensional band only exporting to be with this non-three-dimensional and lead to one of mixed cell and export and be added to produce and compensated non-three-dimensional luminance signal of mixed cell.
A kind of image compensating device of the present invention comprises a three-dimensional band pass filter, a three-dimensional band only filter, a three-dimensional band only mixed cell, a three-dimensional adder unit, a non-three-dimensional band only filter, a non-three-dimensional band pass filter, a non-three-dimensional band only mixed cell, the logical mixed cell of non-three-dimensional band and a non-three-dimensional adder unit.This three-dimensional band pass filter is by the composition of a three-dimensional luminance signal in a frequency range of this carrier frequency of this chromatic component, and other composition of this three-dimensional luminance signal of filtering.The signal strength signal intensity of the composition of this three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component reduces by this three-dimensional band only filter.This three-dimensional is with one of only filter output to mix with a three-dimensional compensating signal by this three-dimensional band only mixed cell.This three-dimensional adder unit exports one of this three-dimensional band pass filter to be with this three-dimensional and stops one of mixed cell and export and be added to produce one and compensated three-dimensional luminance signal.The signal strength signal intensity of the composition of one non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component reduces by this non-three-dimensional band only filter.This non-three-dimensional band pass filter is by the composition of this non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component, and other composition of this non-three-dimensional luminance signal of filtering.This non-three-dimensional band only mixed cell is defined as the quantity of marginal point according to several sampling points in a region, the output this non-three-dimensional band being stopped filter mixes with this three-dimensional compensating signal is maybe with this output of only filter to mix with a non-three-dimensional compensating signal by this non-three-dimensional, when the quantity that these sampling points in this region are defined as marginal point is greater than a marginal point threshold value, this non-three-dimensional is with this output of only filter to mix with this three-dimensional compensating signal by this non-three-dimensional band only mixed cell, otherwise, this non-three-dimensional is with this output of only filter to mix with this non-three-dimensional compensating signal by this non-three-dimensional band only mixed cell.The logical mixed cell of this non-three-dimensional band according to an one dimension luminance signal in this region and a two-dimensional brightness signal whether close to this carrier frequency and whether this region is a fringe region time, export one of this non-three-dimensional band pass filter and mix or direct this output by this non-three-dimensional band pass filter with this output of this three-dimensional band pass filter, when this one dimension luminance signal in this region and this two-dimensional brightness signal close to this carrier frequency and this region is this fringe region time, this output of this non-three-dimensional band pass filter mixes with this output of this three-dimensional band pass filter by the logical mixed cell of this non-three-dimensional band, otherwise, the logical mixed cell of this non-three-dimensional band is directly by this output of this non-three-dimensional band pass filter.This non-three-dimensional adder unit is by this non-three-dimensional band only exporting to be with this non-three-dimensional and lead to one of mixed cell and export and be added to produce and compensated non-three-dimensional luminance signal of mixed cell.
Situation that is unstable in prior art and pore shape can be avoided according to the image compensating device of the present invention.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and coordinate institute's accompanying drawings, be described in detail below:
[accompanying drawing explanation]
Fig. 1 illustrates the image compensating device according to one embodiment of the invention;
Fig. 2 A to Fig. 2 D illustrates and determines that whether and this region whether similar to this region at the picture frame that continues, a region at current picture frame be the method for fringe region; And
Fig. 3 illustrates the sampling point of contiguous current sampling point in current sampling point and several horizontal directions.
[embodiment]
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.
Fig. 1 illustrates the image compensating device according to one embodiment of the invention.Image compensating device is for compensating a three-dimensional luminance signal and non-three-dimensional luminance signal.In a current picture frame (currentframe), a composite video signal has a chromatic component and a luminance components.This current picture frame comprises two figure fields (field), and a figure field comprises some scan lines, and every scan line comprises several sampling points (samplepoint).Chromatic component is that modulation is in a carrier frequency.One three-dimensional comb filter is received in this composite video signal in this figure field of this picture frame and exports this three-dimensional luminance signal.One non-three-dimensional comb filter receives this composite video signal in this figure field of this picture frame and exports this non-three-dimensional luminance signal.Three-dimensional and non-three-dimensional comb filter is well known to those skilled in the art, and this does not add to repeat.
Image compensating device comprises three-dimensional band pass filter 100, the three-dimensional band only non-three-dimensional band of filter (notchfilter) 102, only non-three-dimensional band pass filter 106, the three-dimensional band of filter 104, the only non-three-dimensional band of mixed cell 108, only mixed cell 110, one non-three-dimensional band logical mixed cell 112, three-dimensional adder unit 114 and a non-three-dimensional adder unit 116.
This three-dimensional band pass filter 100 is by the composition of three-dimensional luminance signal LU1 in a frequency range of this carrier frequency of this chromatic component, and other composition of this three-dimensional luminance signal of filtering LU1.
The signal strength signal intensity of the composition of this three-dimensional luminance signal LU1 in this frequency range of this carrier frequency of this chromatic component reduces by this three-dimensional band only filter 102, is noted that frequency range adjusting.
The signal strength signal intensity of the composition of non-three-dimensional luminance signal LU2 in this frequency range of this carrier frequency of this chromatic component reduces by this non-three-dimensional band only filter 104.
This non-three-dimensional band pass filter 106 is by the composition of this non-three-dimensional luminance signal LU2 in this frequency range of this carrier frequency of this chromatic component, and other composition of this non-three-dimensional luminance signal LU2 of filtering.
This three-dimensional is with one of only filter 102 output to mix with a three-dimensional compensating signal LU3 by this three-dimensional band only mixed cell 108.
This three-dimensional adder unit 114 exports one of this three-dimensional band pass filter 100 to be with this three-dimensional and stops one of mixed cell 108 and export and be added to produce one and compensated three-dimensional luminance signal (compensated3Dluminancesignal) LU5.
This non-three-dimensional band only mixed cell 110 according to a region of this current picture frame with one continue picture frame (nextframe) this region whether similar (similar) and whether be a fringe region according to this region, by this non-three-dimensional band only exporting and mix with this three-dimensional compensating signal LU3 or non-three-dimensional be with this output stopping filter 104 to mix with a non-three-dimensional compensating signal LU4 of filter 104.Above-mentioned zone comprises several sampling points.The invention provides a kind of mechanism of detecting to determine that whether this region at this current picture frame is similar to this region at this picture frame that continues and whether this region is this fringe region, above-mentioned detecting mechanism will describe in Fig. 2 A to Fig. 2 D.
Whether whether the logical mixed cell 112 of this non-three-dimensional band similar to this region at this picture frame that continues and be this fringe region (will describe in Fig. 2 A to Fig. 2 D) according to this region according to this region at this current picture frame, exports mix one of this non-three-dimensional band pass filter 106 or direct this output passing through this non-three-dimensional band pass filter 106 with this output of this three-dimensional band pass filter 100.
This non-three-dimensional adder unit 116 is by this non-three-dimensional band only exporting to be with this non-three-dimensional and lead to one of mixed cell 112 and export and be added to produce and compensated non-three-dimensional luminance signal (compensatednon-3Dluminancesignal) LU6 of mixed cell 110.
Refer to Fig. 2 A to Fig. 2 D, Fig. 2 A to Fig. 2 D illustrates and determines that whether and this region whether similar to this region at this picture frame that continues, this region at this current picture frame be the method for this fringe region.In the present embodiment, this region comprises 15 sampling points, and these 15 sampling points comprise the sampling point of this current sampling point R1 of current sampling point (currentsamplepoint) R1 and 14 vicinity.These 15 sampling points are National Television Selection association (NationalTelevisionSystemCommittee; NTSC) standard.In Fig. 2 A, 16 brightness signal Y 1-Y16 can be calculated according to the phase relation of these 15 sampling points.Then, as shown in Figure 2 B, can by these 16 brightness signal Y 1-Y16 being deducted a mean value of these 16 brightness signal Y 1-Y16, to calculate ten six sigma value (standarddeviationvalue) S1-S16.In Fig. 2 C, by this ten six sigma value S1-S16 is compared with an edge threshold, to set 16 edge decision bit (edgedeterminationbit) P1-P16.For example, if standard deviation S1 is greater than this edge threshold, edge decision bit P1 is set as " 1 " (high levle), if standard deviation S1 is less than this edge threshold, edge decision bit P1 is set as " 0 " (low level).When the quantity that decision bit P1-P16 is set to " 1 " when edge is greater than one edge region threshold (edgeareathresholdvalue), determine that this region corresponding to these 15 sampling points is fringe region; When the quantity that decision bit P1-P16 is set to " 1 " when edge is less than this fringe region threshold value, determine that this region corresponding to these 15 sampling points is not fringe region.This edge threshold and this fringe region threshold value can adjust size according to demand.
In Fig. 2 D, can determine that whether this region at this current picture frame is similar to this region at this picture frame that continues.By by this current picture frame (i.e. the first figure field) these 16 edge decision bit P1-P16 with make comparisons at these 16 edge decision bit P1-P16 of this picture frame that continues (i.e. the 3rd figure field), to set 16 similarity position (similaritybit) C1-C16 (only showing C1 and C2 in Fig. 2 D).For example, if identical with at the edge decision bit P1 of this picture frame that continues (i.e. the 3rd figure field) at the edge decision bit P1 of this current picture frame (i.e. the first figure field), similarity position C1 is set as " 1 " (high levle); If different from the edge decision bit P1 of this picture frame that continues (i.e. the 3rd figure field) at the edge decision bit P1 of this current picture frame (i.e. the first figure field), similarity position C1 is set as " 0 " (low level).When the quantity that similarity position C1-C16 is set to " 1 " is greater than one similar area threshold value (similarareathresholdvalue), determine that this region corresponding to these 15 sampling points is similar area; When the quantity that similarity position C1-C16 is set to " 1 " is less than this similar area threshold value, determine that this region corresponding to these 15 sampling points is not similar area.This similar area threshold value can adjust size according to demand.Be noted that the detecting mechanism of Fig. 2 A to Fig. 2 D also can be applied to phase interaction line (PhaseAlternationbyLine; PAL) standard, this does not add to repeat.
Refer to Fig. 1, when determining that this region is similarity region (as shown in Figure 2 D) and determines that this region is fringe region (as shown in Figure 2 C), this non-three-dimensional is with this output of only filter 104 to mix with this three-dimensional compensating signal LU3 by this non-three-dimensional band only mixed cell 110, otherwise this non-three-dimensional is with this output of only filter 104 to mix with this non-three-dimensional compensating signal LU4 by this non-three-dimensional band only mixed cell 110.
When determining that this region is similarity region (as shown in Figure 2 D) and determines that this region is fringe region (as shown in Figure 2 C), this output of this non-three-dimensional band pass filter 106 mixes with this output of this three-dimensional band pass filter 100 by the logical mixed cell 112 of this non-three-dimensional band, otherwise the logical mixed cell 112 of this non-three-dimensional band is directly by this output of this non-three-dimensional band pass filter 106.
In above-described embodiment, this non-three-dimensional band only mixed cell 110 according to this region at this current picture frame and this region at this picture frame that continues whether similar with whether be that fringe region performs compensating operation according to this region.The invention provides another kind of method is with only mixed cell 110 to perform compensating operation for this non-three-dimensional.Refer to Fig. 3, Fig. 3 illustrates the sampling point of contiguous current sampling point R1 in current sampling point R1 and several horizontal directions, comprises nine sampling points in this example.This non-three-dimensional band only mixed cell 110 is defined as the quantity of marginal point according to these sampling points, this non-three-dimensional be with this output of only filter 104 to mix with this three-dimensional compensating signal LU3 and maybe this non-three-dimensional be with this output of only filter 104 to mix with this non-three-dimensional compensating signal LU4.When the quantity that these sampling points are defined as marginal point is greater than a marginal point threshold value, this non-three-dimensional is with this output of only filter 104 to mix with this three-dimensional compensating signal LU3 by this non-three-dimensional band only mixed cell 110, otherwise this non-three-dimensional is with this output of only filter 104 to mix with this non-three-dimensional compensating signal LU4 by this non-three-dimensional band only mixed cell 110.Can determine whether these sampling points are marginal point from Fig. 2 C.
In addition, in above-described embodiment, whether whether the logical mixed cell 112 of this non-three-dimensional band similar to this region at this picture frame that continues and be that this fringe region performs compensating operation according to this region according to this region at current picture frame.The invention provides another kind of method and perform compensating operation for the logical mixed cell 112 of this non-three-dimensional band.When the one dimension luminance signal in this region and a two-dimensional brightness signal close to this carrier frequency and this region is fringe region time, the output of this non-three-dimensional band pass filter 106 mixes with the output of this three-dimensional band pass filter 100 by the logical mixed cell 112 of this non-three-dimensional band, otherwise the logical mixed cell 112 of this non-three-dimensional band is directly by the output of this non-three-dimensional band pass filter 106.
In summary, only mixed cell 110 and this non-three-dimensional are with logical mixed cell 112 to perform compensating operation for this non-three-dimensional band to the invention provides two kinds of methods.In an embodiment, the image compensating device of the present invention can only select a kind of method to perform compensating operation, and in another embodiment, the image compensating device of the present invention can comprise two kinds of methods to perform compensating operation.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (3)
1. an image compensating device, in a current picture frame, a composite video signal has a chromatic component and a luminance components, and this chromatic component modulation, in a carrier frequency, is characterized in that, this image compensating device comprises:
One three-dimensional band pass filter, by the composition of a three-dimensional luminance signal in a frequency range of this carrier frequency of this chromatic component, and other composition of this three-dimensional luminance signal of filtering;
One three-dimensional band only filter, reduces the signal strength signal intensity of the composition of this three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component;
One three-dimensional band only mixed cell, is with one of only filter to export this three-dimensional and mixes with a three-dimensional compensating signal;
One three-dimensional adder unit, exports one of this three-dimensional band pass filter to be with this three-dimensional and stops one of mixed cell and export and be added to produce one and compensated three-dimensional luminance signal;
One non-three-dimensional band only filter, reduces the signal strength signal intensity of the composition of a non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component;
One non-three-dimensional band pass filter, by the composition of this non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component, and other composition of this non-three-dimensional luminance signal of filtering;
One non-three-dimensional band only mixed cell, according in a region of this current picture frame to whether similar and whether be a fringe region according to this region in continue this region of picture frame, the output this non-three-dimensional band being stopped filter mixes with this three-dimensional compensating signal is maybe with this output of only filter to mix with a non-three-dimensional compensating signal by this non-three-dimensional, when this region at this current picture frame is similar to this region at this picture frame that continues and this region is this fringe region, this non-three-dimensional is with this output of only filter to mix with this three-dimensional compensating signal by this non-three-dimensional band only mixed cell, otherwise, this non-three-dimensional is with this output of only filter to mix with this non-three-dimensional compensating signal by this non-three-dimensional band only mixed cell,
The logical mixed cell of one non-three-dimensional band, whether similar to this region at this picture frame that continues and whether be this fringe region according to this region according to this region at this current picture frame, export one of this non-three-dimensional band pass filter and mix or direct this output by this non-three-dimensional band pass filter with this output of this three-dimensional band pass filter, when this region at this current picture frame is similar to this region at this picture frame that continues and this region is this fringe region, this output of this non-three-dimensional band pass filter mixes with this output of this three-dimensional band pass filter by the logical mixed cell of this non-three-dimensional band, otherwise, the logical mixed cell of this non-three-dimensional band is directly by this output of this non-three-dimensional band pass filter, and
One non-three-dimensional adder unit, by this non-three-dimensional band only exporting to be with this non-three-dimensional and lead to one of mixed cell and export and be added to produce and compensated non-three-dimensional luminance signal of mixed cell.
2. image compensating device according to claim 1, it is characterized in that, made comparisons by a mean value of the luminance signal of the luminance signal of several sampling points by this region and these sampling points in this region, determine that whether this region at this current picture frame is similar to this region at this picture frame that continues.
3. an image compensating device, in a current picture frame, a composite video signal has a chromatic component and a luminance components, and this chromatic component modulation, in a carrier frequency, is characterized in that, this image compensating device comprises:
One three-dimensional band pass filter, by the composition of a three-dimensional luminance signal in a frequency range of this carrier frequency of this chromatic component, and other composition of this three-dimensional luminance signal of filtering;
One three-dimensional band only filter, reduces the signal strength signal intensity of the composition of this three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component;
One three-dimensional band only mixed cell, is with one of only filter to export this three-dimensional and mixes with a three-dimensional compensating signal;
One three-dimensional adder unit, exports one of this three-dimensional band pass filter to be with this three-dimensional and stops one of mixed cell and export and be added to produce one and compensated three-dimensional luminance signal;
One non-three-dimensional band only filter, reduces the signal strength signal intensity of the composition of a non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component;
One non-three-dimensional band pass filter, by the composition of this non-three-dimensional luminance signal in this frequency range of this carrier frequency of this chromatic component, and other composition of this non-three-dimensional luminance signal of filtering;
One non-three-dimensional band only mixed cell, the quantity of marginal point is defined as according to several sampling points in a region, the output this non-three-dimensional band being stopped filter mixes with this three-dimensional compensating signal is maybe with this output of only filter to mix with a non-three-dimensional compensating signal by this non-three-dimensional, when the quantity that these sampling points in this region are defined as marginal point is greater than a marginal point threshold value, this non-three-dimensional is with this output of only filter to mix with this three-dimensional compensating signal by this non-three-dimensional band only mixed cell, otherwise, this non-three-dimensional is with this output of only filter to mix with this non-three-dimensional compensating signal by this non-three-dimensional band only mixed cell,
The logical mixed cell of one non-three-dimensional band, according to the one dimension luminance signal in this region and a two-dimensional brightness signal whether close to this carrier frequency and whether this region is a fringe region time, export one of this non-three-dimensional band pass filter and mix or direct this output by this non-three-dimensional band pass filter with this output of this three-dimensional band pass filter, when this one dimension luminance signal in this region and this two-dimensional brightness signal close to this carrier frequency and this region is this fringe region time, this output of this non-three-dimensional band pass filter mixes with this output of this three-dimensional band pass filter by the logical mixed cell of this non-three-dimensional band, otherwise, the logical mixed cell of this non-three-dimensional band is directly by this output of this non-three-dimensional band pass filter, and
One non-three-dimensional adder unit, by this non-three-dimensional band only exporting to be with this non-three-dimensional and lead to one of mixed cell and export and be added to produce and compensated non-three-dimensional luminance signal of mixed cell.
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| CN1461571A (en) * | 2001-04-09 | 2003-12-10 | 皇家菲利浦电子有限公司 | Filter device |
| CN101272509A (en) * | 2008-04-01 | 2008-09-24 | 西安交通大学 | Video signal decoder based on 3D self-adapting comb filtering |
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| KR100688519B1 (en) * | 2005-01-13 | 2007-03-02 | 삼성전자주식회사 | Digital video signal processing apparatus and method for adaptive and temporal and spatial Y/C separation based on field period |
| JP2008160351A (en) * | 2006-12-22 | 2008-07-10 | Nec Electronics Corp | Color motion detection circuit and y/c separation circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1461571A (en) * | 2001-04-09 | 2003-12-10 | 皇家菲利浦电子有限公司 | Filter device |
| CN101272509A (en) * | 2008-04-01 | 2008-09-24 | 西安交通大学 | Video signal decoder based on 3D self-adapting comb filtering |
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| Title |
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| 《动态检测电视图像三维亮色分离技术的研究》;王群生等;《电视接收》;20000817;全文 * |
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