CN100556073C - Based on the anti-shake processing method of the image of ALIS Display Technique - Google Patents
Based on the anti-shake processing method of the image of ALIS Display Technique Download PDFInfo
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Abstract
The invention discloses the anti-shake processing method of a kind of image based on the ALIS Display Technique, its concrete steps comprise: at first, the horizontal edge that is presented at the still image on the dynamic background is widened, and removed the boundary line, regulate its edge transition sector width between 10～25mm; Secondly, regulate the brightness in described edge transition district, be by dark to the bright trend that gradually changes to inside by edge; Wherein, the edge brightness in described edge transition district is adjusted to 1/6～1/3 of display device high-high brightness; The most inboard brightness regulation in edge transition district is 1/2～2/3 of a display device high-high brightness; Then, the font of horizontal line wider width be arranged in the character on the still image, and character brightness is reduced to 1/2～2/3 of display device high-high brightness.The figure that this scheme can effectively be eliminated the ALIS display module trembles phenomenon, has greatly improved consumer's visual effect, has improved the complete machine quality of interlaced scan tv product.
Description
Technical field
The invention belongs to the signal processing technology field, relate to a kind of anti-shake processing method of image, specifically, relate to a kind of software implementation method that the picture signal of the plasma module that adopts interlacing scan ALIS Display Technique is carried out anti-shake processing.
Background technology
Present video display technology generally comprises two kinds of basic display modes: interlacing scan or line by line scan.Line by line scan, be commonly used on computer display or the digital television, all horizontal lines of a displayed image are as a frame.Interlacing scan is commonly used on the television set of standard NTSC, PAL, Sequential Color and Memory system formula, once only shows the half level line, promptly each frame is divided into two demonstrations, shows earlier to show even field again by odd field.Interlacing scan depends on the eye storage characteristic of human eye and the phosphorus on the television picture tube and persists two scanning fields are thickened, and forms the piece image that human eye perceives arrives.Interleaved advantage is as long as half original data volume just can obtain high refresh rate 50Hz or 60Hz; Shortcoming is that horizontal resolution shows more line by line and reduced half in fact.Therefore; for adopting interlacing to show the plasm TV of ALIS technology; run into the problem of image flicker shake through regular meeting; when particularly showing still image or showing still image on the outer PC by video screen on dynamic background frame, the flashing problem of still image is particularly evident.For example trigger OSD operating system menu in watching the process of TV programme, at this moment, background frame is dynamic TV program, and the OSD menu that shows on it is static.Present television set generally all designs thinner edge line at its horizontal edge place, and the brightness of whole menu is identical when design OSD menu, specific luminance is higher mutually with background frame.This OSD menu design mode is applied in the plasma TV of interlacing demonstration; menu occurring through regular meeting glimmers seriously in the horizontal direction; give the sensation of shake, thereby caused influence to a certain degree for consumer's view reception effect, reduced the complete machine quality of plasm TV.
Summary of the invention
When one of purpose of the present invention is to solve the display device that adopts the interlacing Display Technique shows still image on dynamic background, because background luminance is generally lower, make the light and shade of still image and background frame to bigger, cause the still image flicker serious, be easy to generate visual shake in the horizontal direction.
At this problem, the technology used in the present invention means comprise:
Step 1 is widened the horizontal edge that is presented at the still image on the dynamic background, regulates its edge transition sector width between 10～25mm;
Step 2 is regulated the brightness in described edge transition district, is by dark to the bright trend that gradually changes to inside by edge.
Wherein, the edge brightness in described edge transition district is adjusted to 1/6～1/3 of display device high-high brightness; The most inboard brightness regulation in edge transition district is 1/2～2/3 of a display device high-high brightness.
In the present invention, preferred edge transition sector width is 20mm; The edge brightness in edge transition district is 1/3 of a display device high-high brightness, and the most inboard brightness is 2/3 of display device high-high brightness.
It is thinner that two of purpose of the present invention is to solve in traditional still image the general brightness of character line higher, horizontal direction, thereby cause the flashing of character easily.
At this problem, the present invention is arranged to the font of horizontal line wider width, for example lishu with the character on the described still image; And the brightness that reduces character on the described still image is to 1/2～2/3 of display device high-high brightness.In the present invention, preferred characters brightness is 1/2 of display device high-high brightness.
Compared with prior art, advantage of the present invention and good effect are: the useful signal processing scheme that the invention provides a kind of ALIS of being applicable to interlacing display module, the figure that uses this scheme can effectively eliminate the demonstration of ALIS module trembles phenomenon, reduced development cost, shortened the development time, greatly improved consumer's visual effect, improved complete machine quality based on interlacing Display Technique tv product.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is done explanation in further detail.
The present invention sums up following rule by the display image based on the plasma module of ALIS technology is analyzed:
1, the variation of image brightness can cause the flicker of observer's subjective sensation, visually shows as jitter phenomenon;
2, the lines on the horizontal direction are thin more, and the contrast of image light and shade is big more, and it is serious more to glimmer;
3, the field frequencies range of image is low more, and it is serious more to glimmer;
4, still image is more serious than the dynamic image flicker, and dynamic image is not generally seen flicker.
According to above-mentioned rule, the present invention adopts a series of technical schemes respectively to being presented at still image on the dynamic background, handling respectively from the video image in the PC, dynamic image, substantially eliminate the image flicker jitter phenomenon, improved the image quality of display device.
Embodiment one, when on dynamic background, showing still image, for example in watching the process of TV programme, show OSD operating system menu, because background frame is dynamic, high-brghtness picture images is seldom arranged, and the brightness of still image is provided with usually higherly, the image light and shade is to bigger, therefore, flicker is more serious.Particularly for the OSD menu, because traditional television set is when design OSD menu, the menu edge is narrower, and general design has thinner boundary line.When this design showed in the plasma module that adopts the interlacing Display Technique, it was serious to glimmer on the OSD menu horizontal direction, from visually showing as jitter phenomenon.
The present invention is based on this problem, proposed a kind of processing method that solves the still image flicker that is presented on the dynamic background that has, specifically may further comprise the steps:
Step 1, the horizontal edge that will be presented at the still image on the dynamic background are widened, and remove the boundary line, regulate its edge transition sector width between 10～25mm;
Step 2, regulate the brightness in described edge transition district, be by dark to the bright trend that gradually changes to inside by edge; Wherein, the edge brightness in described edge transition district is adjusted to 1/6～1/3 of display device high-high brightness; The most inboard brightness regulation in edge transition district is 1/2～2/3 of a display device high-high brightness.
Step 3, the font of horizontal line wider width, for example lishu be arranged in the character on the described still image;
The brightness of character is to 1/2～2/3 of display device high-high brightness on step 4, the described still image of reduction.
In the present invention, preferred edge transition sector width is 20mm; The edge brightness in edge transition district is 1/3 of a display device high-high brightness, and the most inboard brightness is 2/3 of display device high-high brightness.The present invention is thinner in order to solve in traditional still image the general brightness of character line higher, horizontal direction, adopts the Song typeface usually, causes the problem of character blinking shake easily, has proposed above-mentioned step 3 and step 4.Wherein, the font of character also can adopt other forms except that lishu, as long as the relative Song typeface of its horizontal line width more slightly; Preferred characters brightness is 1/2 of display device high-high brightness.
Still image after handling is stored in the memory of display device, store among the FLASH, directly access demonstration during demonstration, thereby eliminated the flashing phenomenon of still image substantially as OSD menu with television set.
Embodiment two, showing from the static PC image in the outer PC by the display device based on the ALIS technology such as television set, when showing EXCEL or WORD document by television screen, because being mainly, the PC image processing satisfies the office requirement, the user need closely watch, and brightness can be darker slightly than the image of other signal sources.According to these characteristics, the measure that the present invention takes is: at first, the display frequency of PC image is brought up to 60～66Hz; Secondly, reduce the brightness of PC image to 75%～80% of display device high-high brightness.In the present invention, preferred image brightness is 80% of display device high-high brightness, and display frequency is 66Hz.PC image after the processing has been eliminated figure substantially and has been trembled phenomenon when showing through television screen.
Embodiment three, and the display device that adopts horizontal-interlace technique is when showing dynamic image, and especially when image detail was a lot, the display frequency of regulating display device was identical with the frequency of input signal, can effectively solve the flating problem.
The present invention is directed to different images and adopted above-mentioned a series of software processes scheme that picture signal is handled respectively, eliminated the problem of image flicker shake substantially, help improving the display quality of display device.
Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (8)
1. anti-shake processing method of the image based on the ALIS Display Technique comprises:
Step 1 is widened the horizontal edge that is presented at the still image on the dynamic background, regulates its edge transition sector width between 10～25mm;
Step 2 is regulated the brightness in described edge transition district, is by dark to the bright trend that gradually changes to inside by edge.
2. the anti-shake processing method of the image based on the ALIS Display Technique according to claim 1 is characterized in that: the edge brightness of regulating described edge transition district is 1/6～1/3 of a display device high-high brightness.
3. the anti-shake processing method of the image based on the ALIS Display Technique according to claim 2 is characterized in that: the most inboard brightness of regulating described edge transition district is 1/2～2/3 of display device high-high brightness.
4. according to claim 1 or the anti-shake processing method of 2 or 3 described images based on the ALIS Display Technique, it is characterized in that: described edge transition sector width is 20mm; The edge brightness in edge transition district is 1/3 of a display device high-high brightness, and the most inboard brightness is 2/3 of display device high-high brightness.
5. according to claim 1 or the anti-shake processing method of 2 or 3 described images, it is characterized in that: the horizontal line width font wideer than the Song typeface be arranged in the character on the described still image based on the ALIS Display Technique.
6. the anti-shake processing method of the image based on the ALIS Display Technique according to claim 5 is characterized in that: the character font on the described still image is a lishu.
7. the anti-shake processing method of the image based on the ALIS Display Technique according to claim 5 is characterized in that: the brightness that reduces character on the described still image is to 1/2～2/3 of display device high-high brightness.
8. the anti-shake processing method of the image based on the ALIS Display Technique according to claim 7 is characterized in that: the brightness of character is 1/2 of display device high-high brightness on the described still image.
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| CNB2006101709167A CN100556073C (en) | 2006-12-25 | 2006-12-25 | Based on the anti-shake processing method of the image of ALIS Display Technique |
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| CN109151538B (en) * | 2018-09-17 | 2021-02-05 | 深圳Tcl新技术有限公司 | Image display method and device, smart television and readable storage medium |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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