CN103763498A - HDMI signal processing system and method - Google Patents
HDMI signal processing system and method Download PDFInfo
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- CN103763498A CN103763498A CN201410034199.XA CN201410034199A CN103763498A CN 103763498 A CN103763498 A CN 103763498A CN 201410034199 A CN201410034199 A CN 201410034199A CN 103763498 A CN103763498 A CN 103763498A
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Abstract
The invention discloses an HDMI signal processing system which comprises an HDMI signal input module, a signal processing module, a calibration module, an image processing module and an HDMI signal output module. The HDMI signal input module receives and decomposes an HDMI signal. The signal processing module conducts an operation on an audio signal and a video signal. The calibration module conducts calibration on an audio-level meter. The image processing module integrates information obtained after the operation into visible data. The invention further provides a corresponding processing method. By means of the HDMI signal processing system and the corresponding processing method, an ordinary peripheral with an HDMI can be changed into a professional monitor, so that a large amount of cost is reduced.
Description
Technical field
The present invention relates to image processing field, relate in particular to a kind of device that HDMI signal is carried out to specialized processing.
Background technology
In early stage and the later stage of film, television production, conventionally need to image be identified accurately and be judged, and then to taking, adjust in time.The high-end monitor of general employing is identified image and judges, because only have high-end monitor just to possess the functions such as professional audio analysis, image focal point analysis and image brightness analysis, but high-end monitor is expensive, cost is very high, safeguards also cumbersome.
Summary of the invention
The object of the invention is in order to solve above-mentioned problems of the prior art, a kind of HDMI signal processing system is proposed, this system allow do not possess professional audio analysis, the display of professional image focal point analysis and the functions such as image brightness analysis or television set etc. also can realize the function identical with high-end monitor.
HDMI signal processing system proposed by the invention, comprising:
HDMI signal input module, the HDMI signal of reception audio-video source, is decomposed into corresponding audio signal, vision signal;
Signal processing module, receives audio signal and the vision signal of described HDMI signal input module, and audio signal is carried out to analyzing and processing, extracts the loudness of audio signal, calculates and forms mean value level; Vision signal is carried out to analyzing and processing, extract peak value and full frame monochrome information in vision signal;
Checking module, compares mean value level and standard value;
Image processing module, is integrated into corresponding visualized data by the information after processing, proofreading;
HDMI signal output module, the visualized data that image processing module is integrated, then be integrated into HDMI agreement standard, export outside audio frequency and video output equipment to.
The invention allows for a kind of HDMI signal processing method, comprise the steps:
Step 1: receiving the HDMI signal of audio-video source, is corresponding audio signal, vision signal by HDMI signal decomposition;
Step 2: sound, vision signal after decomposing are analyzed and computing, voice data is carried out to the measurement of audio signal level, extract the loudness of audio signal, calculate and form mean value level, and contrast with standard value; Vision signal is carried out to analyzing and processing, extract peak value and full frame monochrome information in vision signal;
Step 3: the information after processing, proofreading is integrated into corresponding visualized data;
Step 4: visualized data is integrated and formed image, by being sent to outside audio frequency and video output equipment in HDMI host-host protocol.
The present invention is by HDMI interface, the common display equipment of HDMI interface will be there is, also the function that possesses professional monitor, can represent the image of taking, thereby improve the judgment of staff to image, and can pass through HDMI interface, select neatly different display devices, reach different video tastes.
Accompanying drawing explanation
Below, the present invention is described in detail for contrast accompanying drawing and preferred embodiment, wherein:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Fig. 3 is method flow diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, invention is described in detail.Should be appreciated that the explanation of the specific embodiment technical scheme in order to explain that the present invention proposes only, and non-limiting the present invention.
As shown in Figure 1, HDMI signal processing system proposed by the invention can be made a HDMI adapter, this HDMI adapter is connected between audio-video source and common display, can make with the audio frequency and video output equipment of HDMI interface, to possess arbitrarily the function of professional monitor by the present invention.
As shown in Figure 2, HDMI signal processing system comprises HDMI signal input module, receives the HDMI signal of audio-video source, is decomposed into corresponding audio signal, vision signal; Signal processing module, receives audio signal and the vision signal of described HDMI signal input module, and audio signal is carried out to analyzing and processing, extracts the loudness of audio signal, calculates and forms mean value level; Vision signal is carried out to analyzing and processing, extract peak value and full frame monochrome information in vision signal; Checking module, compares mean value level and standard value; Image processing module, is integrated into corresponding visualized data by the information after processing, proofreading; HDMI signal output module, the visualized data that image processing module is integrated, then be integrated into HDMI agreement standard, export outside audio frequency and video output equipment to; Memory module.Can the good visualized data of stores processor.
In the present embodiment, the model that has adopted U.S. tektronix company to produce is that WFM8300 waveforms detection instrument draws standard value, contrasts in real time with mean value level, draws in real time dynamic audio level value.The data that signal processing module of the present invention calculated, processes have contained the required data of most of professional figure, and the visualized data that final image processing module can be integrated comprises histogram, zebra line chart, pseudo-chromatic graph, Audio-Level Meter, brightness histogram, the monochromatic demonstration figure of black and white, Full wave shape figure, color separation Full wave shape figure, polar plot.Make regular display can show most of professional graph image, realize the function of professional monitor.
As shown in Figure 3, one embodiment of the invention have also proposed a kind of HDMI signal processing method, comprise the steps:
Step 1: receive the HDMI signal of audio-video source, and be corresponding audio signal, vision signal by HDMI signal decomposition;
Step 2: respectively sound, vision signal are carried out to computing, processing, check and correction.
Step 3: the information after processing, proofreading is integrated into corresponding visualized data;
Step 4: visualized data is integrated and formed image, and by being sent to outside audio frequency and video output equipment in HDMI host-host protocol, the then outside audio frequency and video output equipment operation such as decode shows accordingly on display screen.
Wherein, voice data is carried out to the measurement of audio signal level, mainly that the loudness in audio signal is extracted, and calculating forms corresponding mean value level (RMS), then the waveform meter that is WFM8300 by the RMSYu U.S. tektronix company model of calculating carries out real-time DBFS parameter contrast and proofreaies and correct, draw in real time dynamic audio level value, these in real time dynamic audio level values are converted into visualized data, can on screen, in corresponding volume bar, show, user can monitor audio level constantly by the volume bar showing on screen, prevent that audio frequency intensity is too high, cause the distortion of audio frequency.
The equipment that above-mentioned U.S. tektronix company model is WFM8300 is widely used in the standard of AV signal and demarcates and detect in radio and television film field, wherein audio loudness monitors option execution ITU-R BS.1770-2 standard.
To the processing procedure of vision signal, be wherein: extract peak value and full frame monochrome information in video data, according to peak value and full frame monochrome information, be integrated into after visualized data, can form Full wave shape figure, histogram, false colour demonstration, zebra stripes etc.
Wherein, peak value is to cross the contrast of neighbor in picture is carried out to the peak value that difference is tried to achieve in computing in FPGA, and with the color of appointment, carries out the covering of related pixel, thereby completes indicating image focusing.Full wave shape figure is according to the difference of the represented light wavelength of pixel (or claim frequency) and the pixel oscillogram that the coordinate of X-axis or Y-axis is arranged and formed in image.Be mainly used in the color balance of full frame and intuitively obtaining of Luminance Distribution information.False colour shows that (measurement of False color and demonstration) is that the color with different class intervals represents by the brightness of each pixel in the picture of calculating gained respectively.Zebra stripes (measurement of Zebra and demonstration) are usingd 70% and 100% brightness in the present embodiment as screening conditions, find the pixel in associated luminance interval, and cover with dynamic zebra stripes striped on their display position.Be mainly used in judging fast relevant range Luminance Distribution situation.Polar plot (measurement of Vector Graphic and demonstration) is to complete color saturation sampling by " Gamma correction " and " composition weighted sum " two step counter movements, and places in polar coordinates, and the look that is mainly used in observed image overflows situation.Histogram (measurement of Histogram and demonstration) is added up for the brightness of all pixels in each frame picture one by one by FPGA, and their quantity of arranging, wherein trunnion axis is from left to right: lightness dimension (0-255), vertical axis from the bottom to top: quantity coordinate (0-according to picture pixel sum and fixed maximum number).
The present invention, by the audio-video signal of HDMI is calculated and analyzed, makes regular display also can show multiple conventional image, realizes the function of high-end monitor, has greatly reduced the material cost of taking.
Claims (5)
1. a HDMI signal processing system, is characterized in that, comprising:
HDMI signal input module, the HDMI signal of reception audio-video source, is decomposed into corresponding audio signal, vision signal;
Signal processing module, receives audio signal and the vision signal of described HDMI signal input module, and audio signal is carried out to analyzing and processing, extracts the loudness of audio signal, calculates and forms mean value level; Vision signal is carried out to analyzing and processing, extract peak value and full frame monochrome information in vision signal;
Checking module, compares mean value level and standard value, draws dynamically real-time audio level value;
Image processing module, is integrated into corresponding visualized data by the information after processing, proofreading;
HDMI signal output module, the visualized data that image processing module is integrated, then be integrated into HDMI agreement standard, export outside audio frequency and video output equipment to.
2. HDMI signal processing system as claimed in claim 1, is characterized in that, also comprises memory module, and the signal that image processing module is integrated is stored.
3. HDMI signal processing system as claimed in claim 1, it is characterized in that, described visualized data comprises histogram, zebra line chart, pseudo-chromatic graph, Audio-Level Meter, brightness histogram, the monochromatic demonstration figure of black and white, Full wave shape figure, color separation Full wave shape figure, polar plot.
4. HDMI signal processing system as claimed in claim 1, is characterized in that, the model that described standard value is produced according to U.S. tektronix company is that WFM8300 waveforms detection instrument draws.
5. a HDMI signal processing method, is characterized in that, comprises the steps:
Step 1: receiving the HDMI signal of audio-video source, is corresponding audio signal, vision signal by HDMI signal decomposition;
Step 2: voice data is carried out to the measurement of audio signal level, extract the loudness of audio signal, calculate and form mean value level, and contrast with standard value; Vision signal is carried out to analyzing and processing, extract peak value and full frame monochrome information in vision signal;
Step 3: the information after processing, proofreading is integrated into corresponding visualized data;
Step 4: visualized data is integrated and formed image, by being sent to outside audio frequency and video output equipment in HDMI host-host protocol.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106201238A (en) * | 2015-05-06 | 2016-12-07 | 小米科技有限责任公司 | Show the method and device of focusing state |
| CN113923509A (en) * | 2021-09-30 | 2022-01-11 | 深圳市炬力北方微电子有限公司 | HDMI video acquisition control processing system |
| CN114143573A (en) * | 2021-12-06 | 2022-03-04 | 北京泰瑞特检测技术服务有限责任公司 | Digital video measuring device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050108008A1 (en) * | 2003-11-14 | 2005-05-19 | Macours Christophe M. | System and method for audio signal processing |
| CN1787627A (en) * | 2004-12-10 | 2006-06-14 | 联发科技股份有限公司 | High picture quantity multimedia interface transmission method and system |
| CN200997685Y (en) * | 2006-08-21 | 2007-12-26 | 郑州万迪来电子技术有限公司 | Liquid-crystal monitor |
| CN101106730A (en) * | 2006-07-11 | 2008-01-16 | 百一电子股份有限公司 | Signal testing method for video/audio receiving device |
| CN101562004A (en) * | 2009-05-19 | 2009-10-21 | 广东响石数码科技有限公司 | Broadcast quality monitor |
| US20110064381A1 (en) * | 2009-09-15 | 2011-03-17 | Apple Inc. | Method and apparatus for identifying video transitions |
| CN102044249A (en) * | 2010-12-10 | 2011-05-04 | 北京中科大洋科技发展股份有限公司 | Method suitable for controlling consistency of sound volume of file broadcasting system |
| CN102685433A (en) * | 2012-05-09 | 2012-09-19 | 卢泳 | Method and device for connecting TV with WiFi (Wireless Fidelity) device |
| CN102790904A (en) * | 2012-08-14 | 2012-11-21 | 合肥鹏翔软件科技有限公司 | Integrated multi-picture digital video monitoring method and system |
| US20130108234A1 (en) * | 2011-10-28 | 2013-05-02 | Canon Kabushiki Kaisha | Content management apparatus, recording apparatus, operation apparatus, content management system, and control methods thereof |
| US20130121662A1 (en) * | 2007-05-31 | 2013-05-16 | Adobe Systems Incorporated | Acoustic Pattern Identification Using Spectral Characteristics to Synchronize Audio and/or Video |
-
2014
- 2014-01-24 CN CN201410034199.XA patent/CN103763498B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050108008A1 (en) * | 2003-11-14 | 2005-05-19 | Macours Christophe M. | System and method for audio signal processing |
| CN1787627A (en) * | 2004-12-10 | 2006-06-14 | 联发科技股份有限公司 | High picture quantity multimedia interface transmission method and system |
| CN101106730A (en) * | 2006-07-11 | 2008-01-16 | 百一电子股份有限公司 | Signal testing method for video/audio receiving device |
| CN200997685Y (en) * | 2006-08-21 | 2007-12-26 | 郑州万迪来电子技术有限公司 | Liquid-crystal monitor |
| US20130121662A1 (en) * | 2007-05-31 | 2013-05-16 | Adobe Systems Incorporated | Acoustic Pattern Identification Using Spectral Characteristics to Synchronize Audio and/or Video |
| CN101562004A (en) * | 2009-05-19 | 2009-10-21 | 广东响石数码科技有限公司 | Broadcast quality monitor |
| US20110064381A1 (en) * | 2009-09-15 | 2011-03-17 | Apple Inc. | Method and apparatus for identifying video transitions |
| CN102044249A (en) * | 2010-12-10 | 2011-05-04 | 北京中科大洋科技发展股份有限公司 | Method suitable for controlling consistency of sound volume of file broadcasting system |
| US20130108234A1 (en) * | 2011-10-28 | 2013-05-02 | Canon Kabushiki Kaisha | Content management apparatus, recording apparatus, operation apparatus, content management system, and control methods thereof |
| CN102685433A (en) * | 2012-05-09 | 2012-09-19 | 卢泳 | Method and device for connecting TV with WiFi (Wireless Fidelity) device |
| CN102790904A (en) * | 2012-08-14 | 2012-11-21 | 合肥鹏翔软件科技有限公司 | Integrated multi-picture digital video monitoring method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106201238A (en) * | 2015-05-06 | 2016-12-07 | 小米科技有限责任公司 | Show the method and device of focusing state |
| CN106201238B (en) * | 2015-05-06 | 2019-11-29 | 小米科技有限责任公司 | Show the method and device of focusing state |
| CN113923509A (en) * | 2021-09-30 | 2022-01-11 | 深圳市炬力北方微电子有限公司 | HDMI video acquisition control processing system |
| CN113923509B (en) * | 2021-09-30 | 2024-06-07 | 深圳市炬力北方微电子有限公司 | HDMI video acquisition control processing system |
| CN114143573A (en) * | 2021-12-06 | 2022-03-04 | 北京泰瑞特检测技术服务有限责任公司 | Digital video measuring device |
| CN114143573B (en) * | 2021-12-06 | 2023-06-20 | 北京泰瑞特检测技术服务有限责任公司 | Digital video measuring device |
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Effective date of registration: 20180409 Address after: 518000 Shenzhen, Shenzhen City, Guangdong Province, Tai Lang street, Longping community department, nine long army industrial areas, 21 floors from 2 to 4 Patentee after: APUTURE IMAGING INDUSTRIES Co.,Ltd. Address before: 518000 Guangdong, Shenzhen, Futian District, Bagua two road Bagualing Industrial Zone ninth 6 floor 603 Patentee before: APUTURE IMAGING INDUSTRIES Co.,Ltd. |
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Address after: 518000 Longping Community Department, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Jiuwo Longjun Industrial Zone, Building 21, 2nd to 4th floors (one photo multi site enterprise) Patentee after: Shenzhen Aitushi Innovation Technology Co.,Ltd. Address before: 518000 floor 2-4, building 21, Longjun Industrial Zone, Jiuwo, Longping community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: APUTURE IMAGING INDUSTRIES Co.,Ltd. |
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