CN105721740B - The compensation method of flat panel TV moving image - Google Patents
The compensation method of flat panel TV moving image Download PDFInfo
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- CN105721740B CN105721740B CN201610049350.6A CN201610049350A CN105721740B CN 105721740 B CN105721740 B CN 105721740B CN 201610049350 A CN201610049350 A CN 201610049350A CN 105721740 B CN105721740 B CN 105721740B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
- H04N5/211—Ghost signal cancellation
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Abstract
The invention discloses a kind of compensation methodes of flat panel TV moving image, this method is mainly that every frame samples movement rate, the dynamic motion backoff algorithm of different weight coefficients is carried out according to the difference of image object movement rate, while improving moving image shake, and avoid rate and change the ghost phenomenon being easy to produce, the effect of moving image is substantially improved.
Description
Technical field
The present invention relates to ntelligent television technolog fields, and in particular to a kind of compensation method of flat panel TV moving image.
Background technique
The adjustment of backlight is to a major criterion for the quality that motion picture appearance is handled being measurement flat panel TV, mesh
Before, the display screen of flat panel TV is usually the frame per second of 60Hz or 120Hz, and more and more program be all it is low-frequency, than
If film is typically all 24 frames, at this time, it may be necessary to carry out interleave operation to the film of 24 frames to weaken the shake of moving image, tradition
Interleave operation generally use 3: 2 frame replication strategy or using static interleave operation, (all interleave operations are taken same
Mode carries out) shake of moving image is improved, but if the object rate that moves in image is variation, pass
The interleave operation of system is easy to bring ghost phenomenon.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of compensation method of flat panel TV moving image.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of compensation method of flat panel TV moving image, it the following steps are included:
Step 1, the weight of prior image frame shared by frame image after moving image rate of change Δ L is corresponded in interleave operation is determined
The correspondence table of sizes values a；
Step 2, display screen is divided into according to physical picture element by several homalographic regions by debug tool, passes through USB
The test signal of interface access moving image；
Step 3, moving object moves in homalographic region in moving image, and moving object is A in the position of first frame,
It is denoted as La, when to the second frame, moving object is moved into position B, is denoted as Lb；
Step 4, the distance between La and Lb, as moving image rate of change Δ L are tested out；
Step 5, it if the value of the moving image rate of change Δ L of moving object is bigger, will be transported when carrying out interleave operation
Animal body is bigger in the weight sizes values a of the image of former frame, if the value of the moving image rate of change Δ L of moving object is got over
It is small, then it carries out when interleave operation that object is smaller in the weight sizes values a of the image of former frame；
Step 6, dynamic interleave operation is carried out according to the assignment of weight sizes values a
Compared with prior art, the beneficial effects of the present invention are:
The interleave algorithm that the present invention uses for dynamic interleave algorithm, i.e., according to the size of consecutive frame image movement rate into
The interleave of Mobile state while the algorithm can improve moving image shake, and avoids the image of moving object rate variation
The ghost phenomenon being easy to produce, significantly improves the effect of moving image.
Detailed description of the invention
Fig. 1 is the flow chart of the compensation method of the flat panel TV moving image of an embodiment of the present invention.
Specific embodiment
The present invention is further elaborated with reference to the accompanying drawing.
As shown in Figure 1, a kind of compensation method of flat panel TV moving image, which is characterized in that it the following steps are included:
Step 1, the weight of prior image frame shared by frame image after moving image rate of change Δ L is corresponded in interleave operation is determined
The correspondence table of sizes values a, for example, the value of setting moving image rate of change Δ L is less than 1000 (pixel units) then weight size
Value a is 0.3, and the value of setting moving image rate of change Δ L is greater than 1000 (pixel units) and then weighs less than 2000 (pixel units)
Weight sizes values a is 0.5, and the value of moving image rate of change Δ L is greater than 2000 (pixel units), and then weight sizes values a is 0.7；
Step 2, display screen is divided into according to physical picture element by several homalographic regions by debug tool, passes through USB
The test signal of interface access moving image；
Step 3, moving object moves in homalographic region in moving image, and moving object is A in the position of first frame,
It is denoted as La, when to the second frame, moving object is moved into position B, is denoted as Lb；
Step 4, the distance between La and Lb, as moving image rate of change Δ L are tested out；
Step 5, it if the value of the moving image rate of change Δ L of moving object is bigger, will be transported when carrying out interleave operation
Animal body is bigger in the weight sizes values a of the image of former frame, if the value of the moving image rate of change Δ L of moving object is got over
It is small, then carry out it is when interleave operation that object is smaller in the weight sizes values a of the image of former frame, for example, according to pair in step 1
It should be related to, Δ L < 1000 (pixel unit), α is assigned a value of 0.3；1000 < Δ L < 2000 (pixel unit), α is assigned a value of 0.5；Δ
L > 2000 (pixel unit), α is assigned a value of 0.7；
Step 6, dynamic interleave operation is carried out according to the assignment of weight sizes values a, reaches the image to moving object
Compensation, and the side effects such as ghost can be eliminated well.
This method is mainly that every frame samples movement rate, and different according to image object movement rate carry out difference
The dynamic motion backoff algorithm of weight coefficient while improving moving image shake, and avoids what rate variation was easy to produce
The effect of moving image is substantially improved in ghost phenomenon.
The above specific embodiment is described in detail for the essence of the present invention, but can not be to protection scope of the present invention
It is limited, it should be apparent that, under the inspiration of the present invention, those of ordinary skill in the art can also carry out many improvement
And modification, it should be noted that these improvement and modification are all fallen within the scope of the claims of the present invention.
Claims (1)
1. a kind of compensation method of flat panel TV moving image, which is characterized in that it the following steps are included:
Step 1, the weight size of prior image frame shared by frame image after moving image rate of change Δ L is corresponded in interleave operation is determined
The correspondence table of value a；
Step 2, display screen is divided into according to physical picture element by several homalographic regions by debug tool, passes through USB interface
Access the test signal of moving image；
Step 3, moving object moves in homalographic region in moving image, and moving object is A in the position of first frame, is denoted as
La, when to the second frame, moving object is moved into position B, is denoted as Lb；
Step 4, the distance between La and Lb, as moving image rate of change Δ L are tested out；
Step 5, if the value of the moving image rate of change Δ L of moving object is bigger, by moving object when carrying out interleave operation
Body is bigger in the weight sizes values a of the image of former frame, if the value of the moving image rate of change Δ L of moving object is smaller,
It then carries out when interleave operation that object is smaller in the weight sizes values a of the image of former frame；
Step 6, dynamic interleave operation is carried out according to the assignment of weight sizes values a.
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| CN201610049350.6A CN105721740B (en) | 2016-01-25 | 2016-01-25 | The compensation method of flat panel TV moving image |
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| CN201610049350.6A CN105721740B (en) | 2016-01-25 | 2016-01-25 | The compensation method of flat panel TV moving image |
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| CN105721740A CN105721740A (en) | 2016-06-29 |
| CN105721740B true CN105721740B (en) | 2018-12-07 |
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| CN1592398A (en) * | 2003-03-28 | 2005-03-09 | 株式会社东芝 | Method of generating frame interpolation and image display system therefor |
| JP2008090176A (en) * | 2006-10-04 | 2008-04-17 | Sharp Corp | Image display device and method, and image processing apparatus, and method |
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| US20030048846A1 (en) * | 2001-07-31 | 2003-03-13 | Myeong-Hwan Lee | Motion image compression apparatus capable of varying frame rate and method of compressing motion image using the same |
| US7362374B2 (en) * | 2002-08-30 | 2008-04-22 | Altera Corporation | Video interlacing using object motion estimation |
| WO2010057170A1 (en) * | 2008-11-17 | 2010-05-20 | Cernium Corporation | Analytics-modulated coding of surveillance video |
| CN102111621B (en) * | 2009-12-23 | 2013-03-13 | 中国移动通信集团公司 | Video data recovery method, device and system |
| US9659353B2 (en) * | 2010-03-01 | 2017-05-23 | Stmicroelectronics, Inc. | Object speed weighted motion compensated interpolation |
| JP2012161020A (en) * | 2011-02-02 | 2012-08-23 | Fujitsu Ltd | Image processing device, and image processing method |
| CN104331164B (en) * | 2014-11-27 | 2017-10-27 | 韩慧健 | A kind of gesture motion smoothing processing method of the similarity threshold analysis based on gesture identification |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1551629A (en) * | 2003-03-25 | 2004-12-01 | ��ʽ���綫֥ | Interpolated image generating method, device and image display system using said method and device |
| CN1592398A (en) * | 2003-03-28 | 2005-03-09 | 株式会社东芝 | Method of generating frame interpolation and image display system therefor |
| JP2008090176A (en) * | 2006-10-04 | 2008-04-17 | Sharp Corp | Image display device and method, and image processing apparatus, and method |
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