CN1996460A - Image display system applied to dynamic image adjustment of digital TV and its method - Google Patents

Image display system applied to dynamic image adjustment of digital TV and its method Download PDF

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Publication number
CN1996460A
CN1996460A CN 200510137670 CN200510137670A CN1996460A CN 1996460 A CN1996460 A CN 1996460A CN 200510137670 CN200510137670 CN 200510137670 CN 200510137670 A CN200510137670 A CN 200510137670A CN 1996460 A CN1996460 A CN 1996460A
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picture
digital television
dynamic adjustment
regulation
parameter
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CN 200510137670
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Chinese (zh)
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邱全成
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Inventec Corp
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Inventec Corp
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Priority to CN 200510137670 priority Critical patent/CN1996460A/en
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Abstract

The visualization system for digital TV dynamic picture adjustment comprises environment light sensing unit, rhythm sound control sensing unit and imaging control unit, with the environment light sensing unit sensing the light change to generate environment light parameter, rhythm sound control unit analyzing the rhythm change to generate rhythm comparison parameter. Searching the corresponding picture illumination adjusting parameter and picture color adjusting control parameter, calibrating the digital display picture, to achieve the optimal display effect.

Description

Be applied to the imaging system and the method thereof of the dynamic adjustment picture of Digital Television
Technical field
The present invention relates to a kind of imaging system and method thereof that is applied to Digital Television, particularly relate to a kind of imaging system and method thereof of coming the dynamic adjustment picture that is applied to Digital Television of adjustment picture according to surround lighting or tempo variation.
Background technology
The evolution of information industry, though from the nineteen ninety course in more than 10 year only so far, general popular daily life has great change.Because the relevant development in science and technology of electronic information progresses rapidly, nowadays (Digital TV DTV) has the trend of placing oneself above traditional analog television to Digital Television.
Traditional domestic TV is called simulated television (Analog TV), and its picture signal is to belong to successional variation, can be divided into two kinds of standards of PAL and NTSC at present.The mode of Digital Television principle of work and traditional analog television is completely different, Digital Television will definitely picture signal after digitized processing, become digital signal, in the mode of wireless receiving and dispatching or wire transmission data information is transmitted again and gets home.In other words, the generation of signal is to be sent to user's receiving end from digital broadcast service end (TV station), as being equipped with organic traditional analog television of going up box (set-top box), Digital Television (DTV) is with the computing machine that is equipped with digital received card (Tuner card).
With the effect that picture presents, the performance of Digital Television far surpasses traditional analog television.Transmit because Digital Television is the mode with digital signal, therefore can remove extraneous noise during the course, and obtain than better image of original simulated television and sound quality.
Digital Television also possesses user's interaction, and the customized performance of program, and this definitely can't compare for traditional tv.Because adopt digitized mode processing signals, thus can in signal, add many information, strengthen TV programme interior perhaps provide simulated television the brand-new service that can't accomplish.For example provide the screen of the language subtitle of plurality of optional, different field-of-view angles, performer's profile information, real-time race statistics data, the information such as news, computer software, stock market information, interactive teaching teaching material that transmit to the user.In addition, digital signal is handled through overcompression; So channel can transmit more substantial signal, so the system dealer of digital broadcast service end is transmitted the multi-medium data of high image quality, maybe can transmit the multi-medium data of three, four programs and give client, and improve the service efficiency of channel.
In addition, use the traditional tv of cathode-ray tube (CRT) imaging technique bulky, in comparison, the frivolous characteristic of Digital Television is subjected to suitable attention deeply, when particularly showing various product out of doors, do not take up space and nowadays easy-to-install Digital Television is used widely.
Though Digital Television is powerful, and be beneficial to the usefulness that outdoor displaying is viewed and admired, use still to have room for improvement.At first, outdoor and be unlike in indoorly, the light fixture of brightness stability is arranged.Often because of the variation of weather, or the problem of time difference sooner or later, must adjust the brightness, contrast of Digital Television etc. constantly, provide preferable display frame to watch, otherwise picture will seem bright or partially secretly to the audience.The standard that right so adjustment shortcoming is followed, adjustment process is loaded down with trivial details and quite time-consuming.
Therefore demand providing a kind of method urgently, to get rid of the problem that above-mentioned Digital Television is faced in the use for a long time.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of imaging system and method thereof that is applied to the dynamic adjustment picture of Digital Television, be used for surround lighting variation carrying out automatically adjustment according to the Digital Television position, to provide appreciation effect more good display frame, reach the colourity of the regulation and control picture of the message Data Dynamic of playing according to Digital Television, to meet the performance play content of message data.
To achieve these goals, the invention provides a kind of imaging system that is applied to the dynamic adjustment picture of Digital Television, it is characterized in that, comprising:
One surround lighting sensing cell is used for the variation of the on-site surround lighting of this Digital Television of sensing, and generates a corresponding surround lighting parameter;
One picture lightness quantizes truth table, records picture lightness regulation and control parameter that should the surround lighting parameter value; And
The shown picture of this Digital Television can be adjusted according to this picture lightness regulation and control parameter in one video picture regulation and control unit.
The described imaging system that is applied to the dynamic adjustment picture of Digital Television, wherein, this picture lightness regulation and control parameter includes a picture brightness value.
The described imaging system that is applied to the dynamic adjustment picture of Digital Television, wherein, this picture lightness regulation and control parameter includes a picture contrast value.
The described imaging system that is applied to the dynamic adjustment picture of Digital Television, wherein, also comprise an idle video picture module, store several default visualization data, so that this Digital Television surpasses a default time of repose value when not having the film of broadcast, will automatically play this default visualization data.
The described imaging system that is applied to the dynamic adjustment picture of Digital Television, wherein, this surround lighting sensing cell be selected from combination that photoresistance, infrared ray line sensor and sensitization charge-coupled device (CCD) constituted one of them.
To achieve these goals, the present invention also provides a kind of developing method that is applied to the dynamic adjustment picture of Digital Television, it is characterized in that, comprises the following step:
Detect the variation of the on-site surround lighting of this Digital Television, and generate a corresponding surround lighting parameter;
According to this surround lighting parameter, quantize to search in the truth table corresponding picture lightness regulation and control parameter in a picture lightness; And
According to this picture lightness regulation and control parameter, adjust the shown picture of this Digital Television.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this picture lightness regulation and control parameter includes a picture brightness value.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this picture lightness regulation and control parameter includes a picture contrast value.
The described developing method that is applied to the dynamic adjustment picture of Digital Television wherein, also includes the step of the standby time of this Digital Television of record.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this writes down the part of the standby time of this Digital Television, if greater than a default time of repose value, then play a default visualization data this standby time.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this default visualization data is stored in an idle video picture module.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this detects the variation of the on-site surround lighting of this Digital Television, and generates the part of this corresponding surround lighting parameter, and is performed by a surround lighting sensing cell.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this surround lighting sensing cell be selected from combination that photoresistance, infrared ray line sensor and sensitization charge-coupled device (CCD) constituted one of them.
To achieve these goals, the present invention also provides a kind of imaging system that is applied to the dynamic adjustment picture of Digital Television, it is characterized in that, comprising:
One rhythm sound control sensing cell is used to analyze the tempo variation of the message data that this Digital Television plays, and generates a corresponding rhythm reduced parameter;
One picture chromaticity quantization truth table records picture colourity regulation and control parameter that should the rhythm reduced parameter; And
The shown picture of this Digital Television can be adjusted according to this picture colourity regulation and control parameter in one video picture regulation and control unit.
The described imaging system that is applied to the dynamic adjustment picture of Digital Television, wherein, also include an idle video picture module, store several default visualization data, so that this Digital Television surpasses a default time of repose value when not having the film of broadcast, will automatically play this default visualization data.
To achieve these goals, the present invention also provides a kind of developing method that is applied to the dynamic adjustment picture of Digital Television, it is characterized in that, comprises the following step:
Analyze the tempo variation of the message data that this Digital Television plays, and generate a corresponding rhythm reduced parameter;
According to this rhythm reduced parameter value, in a picture chromaticity quantization truth table, search corresponding picture colourity regulation and control parameter; And
According to this picture colourity regulation and control parameter, adjust the shown picture of this Digital Television.
The described developing method that is applied to the dynamic adjustment picture of Digital Television wherein, also includes the step of the standby time of this Digital Television of record.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this writes down the part of the standby time of this Digital Television, if greater than a default time of repose value, then play a default visualization data this standby time.
The described developing method that is applied to the dynamic adjustment picture of Digital Television, wherein, this default visualization data is stored in an idle video picture module.
The invention solves in the prior art shortcoming that can't change in response to surround lighting, promptly be, no matter surround lighting because of weather or day and night the difference of time change, picture that all can corresponding dynamically adjustment Digital Television is to present optimized display effect.In addition, the adjustment operation all quantizes truth table by the picture lightness and comes keyholed back plate, so the picture adjustment has the standard of following, standard is clear and definite, and picture presents stable.The keeper only need change the parameter that the picture lightness quantizes in the truth table and gets final product in case of necessity, and maintenance management is very easy.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is applied to the system architecture diagram of imaging system of the dynamic adjustment picture of Digital Television for the present invention;
Fig. 2 is applied to the schematic flow sheet of first preferred embodiment of imaging system of the dynamic adjustment picture of Digital Television for the present invention;
Fig. 3 is applied to the schematic flow sheet of second preferred embodiment of imaging system of the dynamic adjustment picture of Digital Television for the present invention.
Wherein, Reference numeral:
100 surround lighting sensing cells
101 rhythm sound control sensing cells
102 picture lightness quantize truth table
103 picture chromaticity quantization truth tables
104 video pictures regulation and control unit
105 idle video picture modules
The variation of step 100 detecting surround lighting generates corresponding surround lighting parameter
Step 101 quantizes to search in the truth table corresponding picture lightness regulation and control parameter according to the surround lighting parameter in the picture lightness
Step 102 is according to picture lightness regulation and control parameter adjustment picture
Step 103 recording digital TV standby time
Is step 104 standby time greater than default time of repose value?
Step 105 is play default visualization data
The tempo variation that step 200 is analyzed the message data generates corresponding rhythm reduced parameter
Step 201 is searched corresponding picture colourity regulation and control parameter according to the rhythm reduced parameter in picture chromaticity quantization truth table
Step 202 is according to picture colourity regulation and control parameter adjustment picture
Step 203 recording digital TV standby time
Is step 204 standby time greater than default time of repose value?
Step 205 is play default visualization data
Embodiment
According to the imaging system that is applied to the dynamic adjustment picture of Digital Television provided by the present invention, can change according to the light of surround lighting and the tempo variation of message data, and adjust display frame dynamically; Please refer to Fig. 1 and explain orally its important composition.
(1), surround lighting sensing cell 100: be used for the on-site surround lighting of sensing Digital Television and change, and generate corresponding surround lighting parameter.Surround lighting sensing cell 100 generally is to adopt photoresistance, maybe can select for use to be infrared ray line sensor, sensitization charge-coupled device (CCD) assemblies such as (CCD).
(2), rhythm sound control sensing cell 101: be used to analyze the tempo variation of the message data that Digital Television plays, and generate corresponding rhythm reduced parameter.
(3), the picture lightness quantizes truth table 102: the picture lightness regulation and control parameter that records the surround lighting parameter of corresponding surround lighting sensing cell 100.This picture lightness regulation and control parameter includes picture brightness value (bright) and picture contrast value (contrast) or the like.
(4), picture chromaticity quantization truth table 103: the picture colourity regulation and control parameter that records the rhythm reduced parameter of corresponding rhythm sound control sensing cell 101.This picture colourity regulation and control parameter comprises form and aspect (hue), colourity numerical value such as (chroma).
(5), video picture regulation and control unit 104: can quantize to search in the truth table 102 corresponding picture lightness regulation and control parameter to the picture lightness according to the surround lighting parameter of surround lighting sensing cell 100.Or, in picture chromaticity quantization truth table 103, search corresponding picture colourity regulation and control parameter according to the rhythm reduced parameter of rhythm sound control sensing cell 101.Then, adjust the shown picture of Digital Television according to the picture lightness regulation and control parameter that finds, picture colourity regulation and control parameter.
(6), idle video picture module 105: store several default visualization data.When Digital Television is not play film above a default time of repose value, will automatically play default visualization data.
As for the developing method that is applied to the dynamic adjustment picture of Digital Television of the present invention, can cooperate above-mentioned imaging system to be carried out, please cooperate with reference to figure 2 first preferred embodiment of the present invention is described.Flow process shown in Figure 2 comprises the steps:
Step 100 is at first utilized photoresistance, infrared ray line sensor, or the surround lighting sensing cell of class such as sensitization charge-coupled device (CCD), the variation of the on-site surround lighting of detecting Digital Television, and generate corresponding surround lighting parameter.
Step 101 then according to the surround lighting parameter, quantize to search corresponding picture lightness regulation and control parameter in the truth table in the picture lightness, and this picture lightness regulation and control parameter includes picture brightness value (bright), picture contrast value (contrast) or the like.
Step 102 then, according to this corresponding picture lightness regulation and control parameter, is adjusted the shown picture of Digital Television, and the end picture correcting process.
Step 103, in addition, system also can recording digital TV standby time.
Step 104, and confirm that standby time is greater than default time of repose value? if true, then execution in step 105, otherwise, then direct process ends.
Step 105 reads default visualization data in the idle certainly video picture module, and plays this default visualization data.
Above-mentioned first preferred embodiment is to adjust according to the variation of surround lighting, and second preferred embodiment of the present invention then is the message data of playing according to Digital Television, carries out dynamic picture adjustment.Please refer to Fig. 3 illustrates.Flow process shown in Figure 3 comprises the steps:
Step 200 is at first analyzed the tempo variation of the message data that Digital Television plays, and is generated corresponding rhythm reduced parameter.
Step 201 then, search corresponding picture colourity regulation and control parameter according to the rhythm reduced parameter in picture chromaticity quantization truth table, and this picture colourity regulation and control parameter includes form and aspect (hue), colourity (chroma) or the like numerical value.
Step 202 then, according to this corresponding picture colourity regulation and control parameter, is adjusted the shown picture of Digital Television, and the end picture correcting process.
Step 203, in addition, system also can recording digital TV standby time.
Step 204, and confirm that standby time is greater than default time of repose value? if true, then execution in step 205, otherwise, then direct process ends.
Step 205 reads default visualization data in the idle certainly video picture module, and plays this default visualization data.
Imaging system and the method thereof that is applied to the dynamic adjustment picture of Digital Television of the present invention, after it is implemented according to this, can be at the bright and dark light degree arround the environment, the picture of automatically adjusting Digital Television and being presented, under different surround lightings, dynamically adjust the lightness of picture; At being installed in outdoor Digital Television, the invention provides good solution, because of changing, surround lighting produced bright or dark partially situation in the prior art that diminishes.For the programme content and the message data of situationization, analyzed interpretation at the kenel of message data (as rock and roll, express one's emotion etc.), meet corresponding picture color presentation mode and switch.When Digital Television is idle, show default visualization data in addition, so Digital Television will become dynamic type situation picture display device, to present different video picture styles.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (19)

1, a kind of imaging system that is applied to the dynamic adjustment picture of Digital Television is characterized in that, comprising:
One surround lighting sensing cell is used for the variation of the on-site surround lighting of this Digital Television of sensing, and generates a corresponding surround lighting parameter;
One picture lightness quantizes truth table, records picture lightness regulation and control parameter that should the surround lighting parameter value; And
The shown picture of this Digital Television can be adjusted according to this picture lightness regulation and control parameter in one video picture regulation and control unit.
2, the imaging system that is applied to the dynamic adjustment picture of Digital Television according to claim 1 is characterized in that, this picture lightness regulation and control parameter includes a picture brightness value.
3, the imaging system that is applied to the dynamic adjustment picture of Digital Television according to claim 1 is characterized in that, this picture lightness regulation and control parameter includes a picture contrast value.
4, the imaging system that is applied to the dynamic adjustment picture of Digital Television according to claim 1, it is characterized in that, also comprise an idle video picture module, store several default visualization data, so that this Digital Television surpasses a default time of repose value when not having the film of broadcast, will automatically play this default visualization data.
5, the imaging system that is applied to the dynamic adjustment picture of Digital Television according to claim 1, it is characterized in that, this surround lighting sensing cell be selected from combination that photoresistance, infrared ray line sensor and sensitization charge-coupled device (CCD) constituted one of them.
6, a kind of developing method that is applied to the dynamic adjustment picture of Digital Television is characterized in that, comprises the following step:
Detect the variation of the on-site surround lighting of this Digital Television, and generate a corresponding surround lighting parameter;
According to this surround lighting parameter, quantize to search in the truth table corresponding picture lightness regulation and control parameter in a picture lightness; And
According to this picture lightness regulation and control parameter, adjust the shown picture of this Digital Television.
7, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 6 is characterized in that, this picture lightness regulation and control parameter includes a picture brightness value.
8, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 6 is characterized in that, this picture lightness regulation and control parameter includes a picture contrast value.
9, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 6 is characterized in that, also includes the step of the standby time of this Digital Television of record.
10, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 9, it is characterized in that, this writes down the part of the standby time of this Digital Television, if greater than a default time of repose value, then play a default visualization data this standby time.
11, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 10 is characterized in that, this default visualization data is stored in an idle video picture module.
12, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 6, it is characterized in that, this detects the variation of the on-site surround lighting of this Digital Television, and generates the part of this corresponding surround lighting parameter, and is performed by a surround lighting sensing cell.
13, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 12, it is characterized in that, this surround lighting sensing cell be selected from combination that photoresistance, infrared ray line sensor and sensitization charge-coupled device (CCD) constituted one of them.
14, a kind of imaging system that is applied to the dynamic adjustment picture of Digital Television is characterized in that, comprising:
One rhythm sound control sensing cell is used to analyze the tempo variation of the message data that this Digital Television plays, and generates a corresponding rhythm reduced parameter;
One picture chromaticity quantization truth table records picture colourity regulation and control parameter that should the rhythm reduced parameter; And
The shown picture of this Digital Television can be adjusted according to this picture colourity regulation and control parameter in one video picture regulation and control unit.
15, the imaging system that is applied to the dynamic adjustment picture of Digital Television according to claim 14, it is characterized in that, also include an idle video picture module, store several default visualization data, so that this Digital Television surpasses a default time of repose value when not having the film of broadcast, will automatically play this default visualization data.
16, a kind of developing method that is applied to the dynamic adjustment picture of Digital Television is characterized in that, comprises the following step:
Analyze the tempo variation of the message data that this Digital Television plays, and generate a corresponding rhythm reduced parameter;
According to this rhythm reduced parameter value, in a picture chromaticity quantization truth table, search corresponding picture colourity regulation and control parameter; And
According to this picture colourity regulation and control parameter, adjust the shown picture of this Digital Television.
17, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 16 is characterized in that, also includes the step of the standby time of this Digital Television of record.
18, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 17, it is characterized in that, this writes down the part of the standby time of this Digital Television, if greater than a default time of repose value, then play a default visualization data this standby time.
19, the developing method that is applied to the dynamic adjustment picture of Digital Television according to claim 18 is characterized in that, this default visualization data is stored in an idle video picture module.
CN 200510137670 2005-12-31 2005-12-31 Image display system applied to dynamic image adjustment of digital TV and its method Pending CN1996460A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102946560A (en) * 2012-11-30 2013-02-27 四川长虹电器股份有限公司 System and method for automatically adjusting audio and video parameters of televisions
CN105243059A (en) * 2014-05-28 2016-01-13 冠捷投资有限公司 Method for recommending related content in electronic apparatus according to ambient illumination
CN105280160A (en) * 2015-11-16 2016-01-27 北京奇虎科技有限公司 Method for adjusting the screen luminance of terminal, and terminal equipment
CN105741817A (en) * 2016-03-30 2016-07-06 苏州合欣美电子科技有限公司 Adaptive adjustment method for play brightness of player
CN107728976A (en) * 2017-09-22 2018-02-23 青岛海信电器股份有限公司 A kind of picture adjusting method and its device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102946560A (en) * 2012-11-30 2013-02-27 四川长虹电器股份有限公司 System and method for automatically adjusting audio and video parameters of televisions
CN105243059A (en) * 2014-05-28 2016-01-13 冠捷投资有限公司 Method for recommending related content in electronic apparatus according to ambient illumination
CN105280160A (en) * 2015-11-16 2016-01-27 北京奇虎科技有限公司 Method for adjusting the screen luminance of terminal, and terminal equipment
CN105741817A (en) * 2016-03-30 2016-07-06 苏州合欣美电子科技有限公司 Adaptive adjustment method for play brightness of player
CN107728976A (en) * 2017-09-22 2018-02-23 青岛海信电器股份有限公司 A kind of picture adjusting method and its device

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