CN1255719C - Enhanced resolution display - Google Patents
Enhanced resolution display Download PDFInfo
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- CN1255719C CN1255719C CNB018018289A CN01801828A CN1255719C CN 1255719 C CN1255719 C CN 1255719C CN B018018289 A CNB018018289 A CN B018018289A CN 01801828 A CN01801828 A CN 01801828A CN 1255719 C CN1255719 C CN 1255719C
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- China
- Prior art keywords
- signal
- resolution
- display
- video
- interlaced
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/012—Conversion between an interlaced and a progressive signal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0224—Details of interlacing
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0414—Vertical resolution change
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
- G09G2370/04—Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
- G09G5/006—Details of the interface to the display terminal
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Graphics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Television Systems (AREA)
Abstract
A method and system for providing an enhanced video display is provided. The video signal can be displayed (960i) with twice the resolution as the standard format (480p), in an interlaced format, which can be displayed at the high resolution level in a device (337) constructed to display the high resolution level and still be displayed properly in a displayed device constructed to receive and display the standard format of one-half the resolution. Thus, a signal can be provided in an interlaced 960i format and be displayed in a display device constructed to receive, process and display video in the 960i format. However, if a device (340) is only constructed to receive, process and display a video signal in a progressive format (480p), the device will process (345) and display (347) it as if the signal were in the progressive format (480p).
Description
Technical field
The present invention relates generally to display video image, relate in particular to high resolving power method of displaying video images and system.
Background technology
Vision signal can be with lining by line scan or the interlaced scanning video form transmits.In progressive-scan format, often working of image shown to the bottom level by the top from screen successively.Show next frame then, a delegation is from the top to the bottom.In interlaced video signal, frame is the combination that comprises the alternate row of two continuous fields, at once 1,3,5,7... and row 2,4,6,8....The row that showed each every 1/60 second.Because this takes place very soon, seem to be exactly a secondary complete image.
Help conserve bandwidth with staggered scanning form transmission video signal.Fig. 1 has shown the vertical space difference between the 480i signal of the 480p signal of progressive-scan format and staggered scanning form.As shown in fig. 1, the successive frame of 480p signal has the identical homeotropic alignment of 480 row resolution on the vertical direction with successive frame.The 480i signal comprises two fields of 480 row frames of staggered scanning form, and wherein there are 240 row resolution each field.Yet they are offset when order is watched, and the 480 row resolution identical with the 480p signal are provided.
480p is known standard picture format.704 * 480 pixels (60 frame) version of lining by line scan is a kind of of digital television format.480i is a NTSC resolution, also is a kind of of ATSC resolution simultaneously.Yet 480 row resolution possibly can't make us satisfied fully concerning application-specific.Though can increase resolution by the capable content that increases vision signal, use the televisor that structure is used for and the 480p format signal is operated together can not correctly show such signal.Also wishing provides vision signal with standard format.480p is a kind of such standard format.
In the ATSC digital television standard, the A/53 document in September 16 nineteen ninety-five and the A/54 document in October 4 nineteen ninety-five, middle different video formats and the standard described.DE 196 41 517A1, US-A 4,907,069 and US-A 5,128,791 have described and can be used to line by line scan or the signal processor and the display system of interlaced scan mode display video.Yet, providing information one for example in disk one and spectators have only the TV of low resolution can't handle or can go wrong during the display of high resolution video content with the high resolving power of planning in high definition television, to show.
The present invention is defined by independent claims.Dependent claims definition advantageous embodiment.
Therefore, hope can provide the method and system with the enhanced resolution display video, still provide simultaneously can be in traditional low resolution equipment correct video signal displayed.
Summary of the invention
Generally speaking, according to the preferred embodiments of the invention, provide to strengthen the method and system that video shows.This system and method provides the signal that can show and can use low-resolution display devices to show with the low resolution progressive-scan format with the high resolving power interlaced scan mode in high-resolution display device.Like this, can signal be provided and in structure is used for display device with the reception of 960i form, processing and display video, show it with staggered scanning 960i form.Yet, be used for the reception of 480p form, processing and display video if display device is only constructed, this equipment will with 960i received signal and processing and show it seemingly this signal be exactly the 480p form.
Therefore, be desirable to provide the improvement system that uses the high resolving power display video signal.
Another embodiment of the present invention provides with a kind of of high resolving power display video signal improves one's methods.
Another embodiment of the present invention provides improving one's methods of display video image and signal, and they can be operated together with traditional video display apparatus with strengthening.
Another embodiment of the present invention provides a kind of improvement system that can operate together with traditional and the vision signal that strengthens.
Therefore the present invention comprises several steps and the one or more such step relation about each other step, with be applicable to system and the signal of realizing such step, perhaps as the detailed description and the accompanying drawings illustrated below and the scope of the present invention that will point out in the claims.
The application provides following method and system:
(1). a kind of method of handling interlaced video signal comprises:
Provide and have vertical high-resolution interlaced video signal;
Odd even respectively the row of the vision signal picture of interlacing be encoded into corresponding progressive video signal picture, make vertical resolution equal described high-resolution half;
Unit level data are embedded in the described progressive video signal, are used to indicate this signal on the interlaced video display, to be shown, the interlaced video that this interlaced video display can display of high resolution.
(2). a kind of display system that is used to handle vision signal comprises:
Demoder, be configured to be used for receiving with progressive format low resolution video signal coding, that have full information, so that adopt interlaced format to be shown, and be configured and be used for the signal of decoding and being received according to the high resolving power that equals described low resolution twice;
Signal processor, be arranged to be used for determine by analyzing whether the vision signal that is received can be shown with high resolving power in unit's level data of described low resolution video signal line by line, described unit level data indicate this signal to be shown on the interlaced video display, and described interlaced video display can show described high-resolution interlaced video; And
Re-packer is used to prepare decoded conversion of signals is become described high-resolution interlace signal.
(3). a kind of video display apparatus, comprise the display system described in above-mentioned (one) middle technical scheme, be arranged to be used for high-resolution interlace signal is provided to a display that comprises.
(4). a kind of recording system, be arranged to be used to receive high-resolution interlaced video signal from a broadcasting equipment, comprising:
Be arranged to be used for odd even respectively the row of the vision signal picture of interlacing be encoded into corresponding progressive video signal picture and make vertical resolution equal described high-resolution half device;
Be arranged to be used for unit level data be embedded into described progressive video signal be used to indicate this signal can be on the interlaced video display device shown in addition, the interlaced video that described interlaced video display can display of high resolution.
Description of drawings
In order to strengthen the understanding of the present invention, with reference to following description, consider together with accompanying drawing, wherein:
Fig. 1 has shown the vertical space difference between 480p and the 480i vision signal;
Fig. 2 has shown the vertical space difference between 480p and the 960i signal;
Fig. 3 is the block diagram that shows according to system of the present invention;
Fig. 4 is the block diagram that vision signal is transmitted and encodes according to a kind of embodiment of the present invention;
Fig. 5 is a signal block diagram decoded and that show according to a kind of embodiment of the present invention;
Embodiment
Vision signal can be with lining by line scan or the staggered scanning form transmits, receives, handles and shows.In lining by line scan, be also referred to as the non-interlace form, video image is shown as continuous frame.In each frame, the demonstration of being lined by line scan of the horizontal line of pixel.Like this, in the 480p form, order is shown the capable order again of 1-480 of a frame shows that the 1-480 of next frame is capable.In the staggered scanning form, order shows two and half pictures (field), and they constitute single frame jointly.For example, when frame is the staggered scanning form, can be divided into odd-numbered line (row 1,3,5...) heel even number line (row 2,4, a 6...) field to frame.The single picture frame of the common formation of the even number vertical row of the odd number vertical row of the pixel of a field and the pixel of second field.Like this, in 480i shows, even number line 2,4,6...480 will show after odd-numbered line 1,3,5...479.Yet spectators can only perceive the single frame of 960 horizontal line resolution.
Interleaved signal is well-known in the art.Yet, known they also have shortcoming.For example, interleaved signal can be counted as a shortcoming, because it makes image processing techniques complicated.Interleaved signal remains and has superiority, because it has kept the vertical resolution of the progressive-scan signal of equal resolution, and only requires the bandwidth of half.Therefore, the signal that transmits with 480i can have identical resolution with the signal with the transmission of 480p form, but only requires its half-band width.On the other hand, if used the bandwidth of 480p signal, just can provide the vertical resolution of 960i signal to identical bandwidth.
With reference to figure 2, can see because two fields of 960i signal each the resolution of 480 row are arranged, when signal by staggered scanning to form the resolution that can reach twice when 960i in the single frame shows.
Usually according to mpeg standard with compressed format transmitting digital TV signal, for example MPEG-2.The decoded subsequently and demonstration of signal.Mpeg encoder and/or demoder still correctly processing signals no matter it is spatial resolution point coding 480p or a 960i form from watching.Like this, if vision signal to mpeg encoder input 960i form, and to this scrambler with the instruction be provided with processing signals seemingly this signal be exactly the 480p signal, the signal that strengthens resolution just can be provided, can show it can showing 960 staggered scanning row resolution and can only show on the equipment of 480 row resolution.
Totally with reference to figure 3, only for the purpose of illustration, video source 300 can result from broadcasting equipment by high resolution scheme, for example the US ATSC standard format of 1088i or 720p, video source 300 produces signal 301, and signal 301 is transmitted to signal processor 310 to create the source video signal 311 of 960i form.By anti-staggered scanning in an algorithm, conversion (scaling) to 960 row resolution and again staggered scanning finish this point.Signal 311 is transmitted to scrambler 320 and can be submitted to different known pre-treatments programs.Scrambler 320 is in order to transmit signal 311 codings and to be compressed into compressed encoding signal 321, for example according to MPEG-2.At signal 311 is under the situation of 960i form, and scrambler can be set, and it is exactly the 480p form seemingly to signal encoding.Signal 321 behind the coding can be used for being used for showing with the low resolution system 340 that the 480p form shows with high resolution system 330 or structure that the 960i form shows by structure.
For example, system 330 comprises the demoder 335 that vision signal 336 is provided with the 960i form.System 330 can also submit to a plurality of known post-processed signal to signal 336 and strengthen program.For example, system 330 comprises that also structure is used for received signal 336 and show its display 337 with the 960i form.
Signal 321 behind the coding also with can construct system's 340 compatibilities that are used for 480p form display video.System 340 comprises demoder 345, its received signal 321 and it is decoded and signal 346 is sent to display 347 with the 480p form.Display 347 can be constructed and is used for 480p form display video signal 346.
As unrestricted embodiment of the present invention, can be connected on the high definition television as the external annex in conjunction with the digital video recorder (DVR) of automatic decode system (transforming to another resolution) from high screen resolution/bit rate.TV or DVR can construct and be used for discerning the 480p signal is can also can adjust aftertreatment doubles the 480p form with generation vertical resolution with the enough vertical resolution information that the 960i form shows actual comprising.Can be by in some part of coded signal, embedding instruction or realizing this point with machinery or electronic switch, for example, these switches can be identified as the type that is encoded to 480p to DVD but the display capabilities of 960i resolution is arranged.The present invention can also adopt demoder that MPEG and other have special-purpose pre-service and a post-processing unit to transmit to guarantee the progressive-scan signal that the high resolving power interleaved signal is used as a half-resolution that shows with high resolving power.
In one embodiment of the present invention, as shown in Figures 4 and 5, signal 410 will be used as the 480p signal storage and fix and have in the memory device of high resolving power (HD) registering capacity at capacity, and as DVD, 410 can be 1080i or the 720p signal that is produced by broadcasting equipment in this example.With being counted as transparent pattern, this equipment can be recorded 2 hours HD (1080i or 720p) signal.Broadcast (LP) pattern if rectificate, this pattern of recording transmission allow to be equivalent to the recording time (4 hours) of transparent mode twice.Yet,, wish to keep original high picture quality to this long play mode.In addition, wish that DVD can be with 960i or 480p system works.
In order to double the capacity of recording of DVD, be necessary to reduce the bit rate of the input signal behind the mpeg encoded.This automatic decode of being known as.Also wish to change form.Yet consequent form should adapt to the standard as ATSC.Standard 480p form allows with than the low bitrate coding, but can cause the reduction of image quality.But, wish to make DVD can be compatible the 480p system because be not that all users have the 960i system.
Recording system 400 can be used for recording signal 410 in the memory device as DVD, and this signal can be with high resolving power or lower resolution displays playback.At first, with 410 decodings of 420 pairs of signals of mpeg decoder, produce decoded signal 421.Subsequently signal 421 is converted it is shown as one group of 720 * 960i two field picture, each frame comprises two 720 * 480.Thereafter, according to mpeg standard to this signal pack 440 and the coding 441, this signal is exactly 720 * 480p signal seemingly.Signal processor can be constructed and is used for encoding with this pattern.As the part of this coding, it can embed unit (meta) progression, and to indicate this according to this be the signal that can be shown as 720 * 960i frame, by interleaved 720 * 480 formations.This code can be inserted in the header or other known mode.Like this, in scrambler 441, signal is encoded with lower bit rate.Therefore, signal 499 can be output and be sent to display device or be stored in the storage medium as DVD.Can 480p or 960i to this signal decoding and show.
Display system 500 shown in Fig. 5 can be used for showing the signal that is used as the transmission of 480p signal according to the preferred embodiments of the invention with the 960i form, as long as this signal comprises the enough vertical resolution data that show with the 960i form.Signal 499 ' can be from the storage medium as DVD, and it is encoded according to top statement according to Fig. 4.Display system 500 will know that (as what discussed) this signal can show with the 960i form here.At first, in demoder 510, this signal is carried out mpeg decode.Decoding when the decoding in this step and signal are common 480p signals is identical.Next, repacking in 520, it is the frame of one group of 720 * 960i that signal is repacked.This receives the instruction of doing like this or is configured to be like this Shi Caihui in system 500 and takes place.
720 * 960i signal 530 is submitted to a plurality of post-processing technologies in the preprocessor 540 subsequently, signal peaking for example, and then be transmitted to display 550.System 500 can be incorporated among the TV or appends on the DVD player.
Can " tell " system 500MPEG stream 499 ' to be actually 960i signal rather than 480p signal, be used as the signal header state.Can realize this point with multiple known way.For example, the Y metadata can be included in the reserve part as the header of mpeg stream.When with scart (scart) can " tell " when cable links to each other VCR and TV-for example at present by the Philips electron institute sell-480p stream is actually 960i stream, the jump cable allows transmitter to discern mutually by additional data transmission line sending with display and communicate by letter.Can provide DVD or other medium of storage " 480p " conversion of signals to be become the 960i signal with physical arrangement, for example perforation or wavestrip or optics or magnetic readable information with indication display according to Fig. 4 coded data.If this equipment can not be communicated by letter, perhaps this display system can't be handled the 960i signal, and display system can't be known the true person's character of the signal that it is receiving and will suppose that it is by the 480p signal of signal header indication and shows this signal with the 480p form on the resolution that reduces.
As can be seen, by signal being provided with the staggered scanning form and just can providing and have the signal that strengthens resolution its coding according to half of progressive-scan format vertical resolution, this signal also is used for the display device compatibility that shows with structure on the low resolution progressive-scan format.
So just will see at those from the description of front and realized target above-mentioned the tangible target that becomes effectively, since and can in said method and structure and system, carry out specific change under the situation that does not deviate from scope of the present invention, so these targets of Shi Xianing mean in the top description to be comprised or accompanying drawing in shown all the elements should be interpreted as descriptive and can not explain with restrictive sensation.Should also be appreciated that following claim intention covers all statements common and proprietary characteristic and invention scope of the present invention as described herein, these statements can be called as within scope as language issues.In the claims, the quotation mark that is placed in the bracket should not be interpreted as limiting this claim.Word " comprises " and does not repel other step that is different from step listed in the claim and element and the existence of element.The phrase " a kind of " that does not have a plain front does not repel the existence of a plurality of such elements.The present invention can realize with the hardware that comprises several different elements and with the computing machine of suitable procedureization.In the equipment claim, enumerated several devices, had in these devices and severally can come specific implementation with one of hardware or identical parts.In mutually different dependent claims, enumerated the minimum fact of specific measurement and do not meant that the combination of these measurements can not be used for effectively utilizing.
Claims (4)
1. method of handling interlaced video signal comprises:
Provide and have vertical high-resolution interlaced video signal (311);
Odd even respectively the row of the vision signal picture of interlacing be encoded into corresponding progressive video signal (321) picture, make vertical resolution equal described high-resolution half;
Unit level data are embedded in the described progressive video signal (321), are used to indicate this signal on the interlaced video display, to be shown, the interlaced video that this interlaced video display can display of high resolution.
2. the method for claim 1, wherein the progressive video signal (321) of coding is stored in the storage medium, and before decoding it is read from described storage medium.
3. display system (500) that is used to handle vision signal comprising:
Demoder (510), be configured to be used for receiving with progressive format (480p) low resolution video signal (499 ') coding, that have full information, so that adopt interlaced format (960i) to be shown, and be configured to be used for the signal of decoding and being received according to the high resolving power that equals described low resolution twice;
Signal processor, be arranged to be used for determine by analyzing whether the vision signal (499 ') that is received can be shown with high resolving power (960i) in unit's level data of described low resolution video signal line by line (321), described unit level data indicate this signal to be shown on the interlaced video display, and described interlaced video display can show described high-resolution interlaced video; And
Re-packer (520) is used to prepare decoded conversion of signals is become described high-resolution interlace signal.
4. a video display apparatus comprises display system as claimed in claim 3 (500), is arranged to be used for high-resolution interlace signal is provided to a display that comprises (550).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60639500A | 2000-06-29 | 2000-06-29 | |
| US09/606,395 | 2000-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1383504A CN1383504A (en) | 2002-12-04 |
| CN1255719C true CN1255719C (en) | 2006-05-10 |
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ID=24427788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018018289A Expired - Fee Related CN1255719C (en) | 2000-06-29 | 2001-06-20 | Enhanced resolution display |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1299796A1 (en) |
| KR (1) | KR100746845B1 (en) |
| CN (1) | CN1255719C (en) |
| WO (1) | WO2002001341A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4789494B2 (en) * | 2004-05-19 | 2011-10-12 | 株式会社ソニー・コンピュータエンタテインメント | Image frame processing method, apparatus, rendering processor, and moving image display method |
| KR100759224B1 (en) * | 2005-12-14 | 2007-09-17 | 주식회사 대우일렉트로닉스 | Method for displaying video of display apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06153069A (en) * | 1992-10-30 | 1994-05-31 | Sony Corp | Converter, duplicating device, reproduction device and display device of image |
-
2001
- 2001-06-20 WO PCT/EP2001/007077 patent/WO2002001341A1/en active Application Filing
- 2001-06-20 EP EP01949428A patent/EP1299796A1/en not_active Withdrawn
- 2001-06-20 CN CNB018018289A patent/CN1255719C/en not_active Expired - Fee Related
- 2001-06-20 KR KR1020027002806A patent/KR100746845B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002001341A1 (en) | 2002-01-03 |
| CN1383504A (en) | 2002-12-04 |
| KR100746845B1 (en) | 2007-08-09 |
| KR20020032560A (en) | 2002-05-03 |
| EP1299796A1 (en) | 2003-04-09 |
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