CN100435553C - Image processing device and method for image display device - Google Patents
Image processing device and method for image display device Download PDFInfo
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- CN100435553C CN100435553C CNB200610115893XA CN200610115893A CN100435553C CN 100435553 C CN100435553 C CN 100435553C CN B200610115893X A CNB200610115893X A CN B200610115893XA CN 200610115893 A CN200610115893 A CN 200610115893A CN 100435553 C CN100435553 C CN 100435553C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
- H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
Abstract
The present invention discloses an image processing device and a method for an image display device. Watching burden caused by fragmentized image can be reduced by not displaying image mute state but displaying the prior still image or not displaying fragmentized image block caused by compressing the image which results in bad receiving but displaying the image of the prior block, when converting the channels or the input signals in order not to display a momentary no-signal state. A temporary still phenomenon of the image can be prevented by an still image of the prior image and a bland transition image can be provided by a multi-image converting technology when the audience converts images. Even though fragmentized image block caused by compressing the image which results in bad transmitting or receiving, the prior image can be diaplayed faithfully, therefor minimizing the watching burden of the audience.
Description
One, technical field
The invention relates to image display device, specifically a kind of in the time will carrying out the conversion of channel switch or input signal, in order not show the no signal condition of moment, the rest image of picture by quiet (mute) state of display image not but before showing, perhaps do not show the broken phenomenon that receives the bad image block that causes because of compressed image, but the image of piece before showing, thereby can reduce the image processing apparatus and the method for the image display device of watching burden that the image fragmentation causes.
Two, background technology
In general, image display device comprises representative TV, this TV is to choose the broadcast singal of the channel that the user selects and carry out demodulation in the broadcast singal that TV station transmits, be separated into sound and image, pass through the image display device that related sound and image processing are exported by picture and loud speaker then.
Recently, for such image display device,, more and more higher to the degree of attentiveness of the Digital Television that is suitable for digital transmiting means along with the development of TV tech and the development that transmits the broadcast singal mode.
Below, with reference to accompanying drawing the image processing apparatus of the image display device of foundation prior art is carried out following explanation.
Fig. 1 is the block diagram according to the formation of the image processing apparatus of the image display device of prior art.
As shown in Figure 1, the image processing apparatus according to the image display device of prior art comprises with the lower part: the button loader 10 of input customer requirements order; Output is 10 that import by above-mentioned button loader, according to the controller 20 of the control signal of customer requirements order; According to the control command of above-mentioned controller 20, receive the transmitting data stream signal that receives by antenna, the MPEG demodulation multiplexer and the decoder 30 that are separated into image, sound and additional information etc. and decode; Receive the picture signal that above-mentioned MPEG demodulation multiplexer and decoder 30 separate, carry out image processing so that the scaler 40 that can on picture, export; In the picture signal of handling by above-mentioned scaler 40, append the Tu XingOSD ﹠amp of information; UI processor 60; Transmit, make above-mentioned Tu XingOSD ﹠amp; The image that UI processor 60 is handled can be by the LVDS conveyer 80 of display floater 90 outputs; The the 1st and the 2nd memory 50,70.
Below, the work according to the image processing apparatus of the image display device of prior art that as above constitutes is described.
If the user is by above-mentioned button loader 10 input opening power orders, above-mentioned controller 20 is just to above-mentioned MPEG demodulation multiplexer and decoder 30 output control signals, thereby receive the picture signal of the transmitting data stream form that receives by antenna, then, on above-mentioned display floater 90, show then by above-mentioned scaler 40 carries out image processing.
In addition, when the user has selected external image signal, receive the associated external picture signal, after above-mentioned scaler 40 carries out image processing, on above-mentioned display floater 90, show from the associated external image device.
And, during user's inputting channel conversion command,, change the channel of choosing by above-mentioned MPEG demodulation multiplexer and decoder 30 according to the control signal of above-mentioned controller 20.Owing to need the conversion in decoded signal source and the synchronous adjustment time of above-mentioned scaler 40, therefore occur the no signal condition of moment inevitably.
But, owing to do not show special-purpose image frame memory, therefore can not carry out soft picture and handle at the output of above-mentioned display floater 90, thereupon will be at the asynchronous and no signal condition (Raster) of picture conversion moment appearance.In order not allow the user see this state, carry out Voice ﹠ Video quiet (mute) and handle.
Promptly, if receive user command by above-mentioned button loader 10 inputs, and to above-mentioned controller 20 transmissions, above-mentioned controller 20 is just to above-mentioned MPEG demodulation multiplexer and decoder 30 and scaler 40 input service still commands, till new input signal end, transmit video mute (mute) processing signals to above-mentioned scaler 40 always.
Then, during video mute (mute), if send the signal that new picture signal processing preparation has finished to above-mentioned controller 20 from above-mentioned MPEG demodulation multiplexer and decoder 30, above-mentioned controller 20 ability also can be handled the picture signal of new decoding thereby remove above-mentioned video mute (mute) to above-mentioned scaler 40 output commands.
Like this, for new picture signal, the signal of the above-mentioned scaler 40 of process is at above-mentioned Tu XingOSD ﹠amp; UI processor 60 appends various user profile, sends to above-mentioned display floater 90 by LVDS conveyer 80 then.
In addition, above-mentioned MPEG demodulation multiplexer and decoder 30 receive the signal of compression, are image, sound and system with its demultiplexing then, restore image.At this moment, if the view data that receives makes a mistake, picture just produces the phenomenon with the block unit fragmentation.
There are the following problems for it: because of the bad weak electric field noise that produces of the simple reception of simulated television and ghost echo obviously allow spectators see incurring dislikely, reduced impression.
Three, summary of the invention
In order to address the above problem, to the purpose of this invention is to provide a speciogenesis channel switch, when importing picture conversion such as selecting conversion, keep the image processing apparatus and the method for the image display device of picture state with the variable condition of minimum.
Its another purpose is: the data of compression occur in the phenomenon because of the piece fragmentation under the situation of improper picture block when receiving error condition, the piece before it is replaced with, thereby the burden that can the minimizing image fragmentation causes to spectators.
For achieving the above object, for have MPEG demodulation multiplexer/decoder, for carry out the 1st memory that mpeg decode and image processing work, show arbitrarily figure or the 2nd memory of Word message, the image display device of scaler, image processing apparatus according to image display device of the present invention is characterized in that it comprises with the lower part: the button loader of input customer requirements order; If by the order of picture conversion such as above-mentioned button loader inputting channel conversion or input selection, just discern related command, optionally control the controller of the access of above-mentioned the 2nd memory; According to the control signal of above-mentioned controller, handle the store path controller of rest image; According to the control signal of above-mentioned controller, receive the image that above-mentioned store path controller or above-mentioned scaler are handled, to the picture transmitter of display floater transmission.
Above-mentioned store path controller is characterised in that it comprises with the lower part: if be transfused to the order of picture conversion such as above-mentioned channel switch or input selection, will be correlated with and watch that image is kept at above-mentioned the 2nd memory, and just produce the addressing generator of new synchronizing signal; According to the new synchronizing signal that above-mentioned addressing generator produces, export the Memory Controller of control signal to the above-mentioned the 1st and the 2nd memory; The new synchronizing signal that produces according to above-mentioned addressing generator and the control signal of above-mentioned controller are handled the rest image that is kept at above-mentioned the 2nd memory and from the data mixing device of the picture conversion of the Streaming Media of the new input of above-mentioned scaler.
Above-mentioned store path controller also comprises: the 1st and the 2nd multiplexer; For the Still image data that is kept at above-mentioned the 2nd memory, has the 1st synergistic device of the multiplying power of the 1st setting multiple; For above-mentioned new view data, has the 2nd synergistic device of the multiplying power of the 2nd setting multiple from the scaler input.
The above-mentioned the 1st set multiple and the 2nd set multiple and be 1.
It is the value that each image frame or every row can change that above-mentioned the 1st setting multiple and the 2nd is set multiple.
For achieving the above object, for have MPEG demodulation multiplexer/decoder, for carry out the 1st memory that mpeg decode and image processing work, show arbitrarily figure or the 2nd memory of Word message, the image display device of scaler, signal processing apparatus according to image display device of the present invention is characterized in that it comprises with the lower part: the button loader of input customer requirements order; Control the store path controller of the view data preservation of the above-mentioned the 1st and the 2nd memory; Along with whether being imported decoding error information from above-mentioned MPEG demodulation multiplexer/decoder, control, preserve block-related picture thereby limit above-mentioned the 2nd memory, can export the controller of the image of before it, having preserved simultaneously; According to the control signal of above-mentioned controller, receive the image that above-mentioned store path controller or above-mentioned scaler are handled, to the picture transmitter of display floater transmission.
Above-mentioned store path controller is controlled, and during not using above-mentioned the 2nd memory, the view data of above-mentioned the 1st memory is kept at above-mentioned the 2nd memory simultaneously; Simultaneously,, just control, do not preserve the view data of the 1st memory of the related blocks of preserving by above-mentioned the 2nd memory if above-mentioned controller is transfused to decoding error information.
For achieving the above object, for have MPEG demodulation multiplexer/decoder, for carrying out the 1st memory that mpeg decode and image processing work, showing the image processing method of image display device of the 2nd memory, the scaler of figure arbitrarily or Word message, method for displaying image according to image display device of the present invention is characterized in that it comprised with the next stage: judge whether the user imports the stage of the order of picture conversion; Along with whether above-mentioned picture conversion order is imported, the picture image in the picture image before the conversion and when conversion optionally is kept at the above-mentioned the 1st and stage of the 2nd memory; When importing above-mentioned picture conversion order,, in the image of reading and saving picture before above-mentioned the 2nd memory, realize stage according to the picture conversion completely of mentioned order according to the synchronizing signal of new generation.
Any one stage of the stage that above-mentioned user imports the order of the picture conversion input that is above-mentioned user in the stage of the order of the stage of the order of inputting channel conversion or input picture conversion.
The above-mentioned stage that optionally is kept at the 1st and the 2nd memory is: if above-mentioned user imports the opening power order, just be kept at the stage of the 1st memory all the time during watching; If the user imports the order of picture conversion during above-mentioned watching, the view data that just will be kept at above-mentioned the 1st memory during above-mentioned watching is kept at the stage of above-mentioned the 2nd memory simultaneously.
Above-mentioned realization comprised with the next stage according to the stage of the picture conversion completely of order: after the view data when above-mentioned conversion command is imported is kept at above-mentioned the 2nd memory, according to new synchronizing signal, reading and saving is in the stage of the view data of above-mentioned the 2nd memory; Judge whether to import stage according to the conversion picture codec end of above-mentioned conversion command; If imported above-mentioned decoding end signal, just change the audio frequency of new input and the stage of image.
For achieving the above object, for have MPEG demodulation multiplexer/decoder, for carrying out the 1st memory that mpeg decode and image processing work, showing the image processing method of image display device of the 2nd memory, the scaler of figure arbitrarily or Word message, image processing method according to image display device of the present invention is characterized in that it comprised with the next stage: grasp the stage whether above-mentioned the 2nd memory uses; If above-mentioned the 2nd memory is not used, the view data that just will be kept at above-mentioned the 1st memory is kept at the stage of above-mentioned the 2nd memory simultaneously; Judge whether the stage of above-mentioned MPEG demodulation multiplexer/decoder generation decoding error; If above-mentioned decoding error takes place, just confirm the relevant error generation area, with the stage of the view data repair process zone errors that are kept at above-mentioned the 2nd memory.
The stage of above-mentioned repair process zone errors comprised with the next stage: if above-mentioned decoding error takes place, just receive the stage from the decoding error positional information of MPEG demodulation multiplexer/decoder; If the information of above-mentioned reception is erroneous block, just replace stage of view data of the piece of relevant position with the view data that is kept at above-mentioned the 2nd memory; If the information of above-mentioned reception is not erroneous block, just reads the view data of above-mentioned the 1st memory, and carry out simultaneously the stage of the data that write the 2nd memory; If through above-mentioned image processing process, whole image finishes, just the stage of watching with the picture of mis repair.
The image processing apparatus of image display device of the present invention and method have following effect:
The first, when carrying out picture conversion, can prevent the temporary transient static phenomenon of image in advance by enough rest images of picture before.
The second, with multiple picture conversion skill and technique such as magic lantern chip picture conversion, covering, mixing, when carrying out picture conversion, spectators can provide soft transition scene.
The 3rd, even the broken phenomenon of piece takes place because of image transmissions/receptions of compression is bad, also can reproduction of reality image before, so watching of spectators born minimize.
The 4th, cause of dissatisfaction can be prevented to cause watching in advance, thereby user satisfaction can be improved.
Four, description of drawings
Fig. 1 is the block diagram according to the image processing apparatus of the image display device of prior art.
Fig. 2 is the block diagram according to the image processing apparatus of image display device of the present invention.
Fig. 3 is the block diagram of detailed displayed map 2 illustrated store path controllers.
Fig. 4 and Fig. 5 are the schematic diagrames of the image processing process when carrying out picture conversion according to image display device of the present invention.
Fig. 6 is the flow chart according to the image processing method of image display device of the present invention.
The schematic diagram of the image processing process when Fig. 7 and Fig. 8 are replacement picture block according to image display device of the present invention.
Fig. 9 is the flow chart according to the embodiment of the image processing method of image display device of the present invention.
The symbol description of major part in the accompanying drawing
100: button loader 110: controller
120:MPEG demodulation multiplexer/decoder 130: scaler
140: 150: the 1 memories of store path controller
171: Tu XingOSD ﹠amp; UI processor 172:LVDS conveyer
180: display floater
Five, embodiment
Below, with reference to accompanying drawing image processing apparatus and method according to image display device of the present invention are described in detail.
Fig. 2 is the block diagram according to the image processing apparatus of image display device of the present invention.Fig. 3 is the block diagram of the formation of detailed displayed map 2 illustrated store path controllers.Fig. 4 to Fig. 5 is the schematic diagram according to the embodiment of the image processing method of image display device of the present invention.Fig. 6 is the flow chart according to the image processing method of image display device of the present invention.
As shown in Figure 2, the image processing apparatus of foundation image display device of the present invention is by constituting with the lower part: the button loader 100 of input customer requirements order; Reception is by the picture signal of the transmitting data stream form of antenna reception, and the MPEG demodulation multiplexer/decoder 120 of decoding; Receive the picture signal of above-mentioned MPEG demodulation multiplexer/decoder 120 and external device (ED) input, thereby handle the scaler 130 that can on picture, show; For carrying out the 1st memory 150 that mpeg decode and image processing are worked; The 2nd memory 160 that shows arbitrary graphic or Word message; If by the order of picture conversion such as above-mentioned button loader 100 inputting channels conversion or input selection, just discern related command, optionally control the controller 110 of the access of above-mentioned the 2nd memory 160; According to the control signal of above-mentioned controller 110, handle the store path controller 140 of rest image; According to the control signal of above-mentioned controller 110, receive the image that above-mentioned store path controller 140 or above-mentioned scaler 130 are handled, to the picture transmitter 170 of display floater 18 transmission.
Here, above-mentioned picture transmitter 170 comprises with the lower part: handle the picture signal handled by above-mentioned scaler 130, by being kept at the graphic OSD of the graph image signal of above-mentioned the 2nd memory 160 and user's input etc. with communicating by letter of above-mentioned store path controller 140; UI processor 171; Transmit above-mentioned graphic OSD to above-mentioned display floater 180; The LVDS conveyer 172 of the picture signal that UI processor 171 is handled.
And, as shown in Figure 3, above-mentioned store path controller 140 comprises with the lower part: if import the order of picture conversion such as above-mentioned channel switch or input selection, will be correlated with and watch that image is kept at above-mentioned the 2nd memory, and just produce the addressing generator 141 of new synchronizing signal; According to the new synchronizing signal that above-mentioned addressing generator 141 produces, export the Memory Controller 142 of control signals to the above-mentioned the 1st and the 2nd memory 150,160; The new synchronizing signal that produces according to above-mentioned addressing generator 141 and the control signal of above-mentioned controller 110 are handled the rest image that is kept at above-mentioned the 2nd memory 160 and from the data mixing device 143 of the picture conversion of the Streaming Medias of above-mentioned scaler 130 new inputs.
And above-mentioned store path controller 140 also comprises: the 1st and the 2nd multiplexer 143,144; For the Still image data that is kept at above-mentioned the 2nd memory 160, has the 1st synergistic device 146 of the multiplying power of the 1st setting multiple; For new view data, has the 2nd synergistic device 147 of the multiplying power of the 2nd setting multiple from above-mentioned scaler 130 inputs.
Below, the work according to the image processing apparatus of image display device of the present invention is described.
If the user is by above-mentioned button loader 100 input opening power orders, above-mentioned controller 110 is just to above-mentioned MPEG demodulation multiplexer/decoder 120 and scaler 130 output control signals, thereby demonstration is by the channel of user's selection or the image of external device (ED) input.
Before being described, work need to prove above-mentioned MPEG demodulation multiplexer/decoder 120, scaler 130 and Tu XingOSD ﹠amp; UI processor 171 can read or write any memory in above-mentioned the 1st memory 150 or the 2nd memory 160, and can use two memories simultaneously by above-mentioned store path controller 140.
Above-mentioned the 1st memory 150 is in order to carry out mpeg decode and calibration, and the memory of working all the time in the process of watching, above-mentioned the 2nd memory 160 are users when making its work arbitrarily, the necessary memory in order to show relevant figure and Word message.Their not overlapping with chapter and verse uses aspect view data, but according to the cooperation ratio that compound technique has any degree are used for the image aspect of keeping on file.Therefore image processing needs extra image frame memory, even, when needing several layers figure, will need several image frame memories.
In addition, aspect the characteristic of remote controller, entering various users when setting pattern, on the channel/down or button such as input selection be used for the menu selection and wait the situation of other purposes very many.In other words, when various setting pattern, major part is the situation that can not carry out channel switch or input selection during promptly owing to visit the 2nd memory, so when carrying out channel switch or input selection, be not the state that needs setting pattern or OSD, therefore the 2nd memory 160 is not accessed states.
Therefore, if the user is switched or the input pattern conversion command by above-mentioned button loader 100 inputting channels, owing to be the moment of realizing picture conversion, so in order the image mute (Mute) of moment not occur by above-mentioned store path controller 140, above-mentioned store path controller 140 is controlled, and the data in current the watching are kept at above-mentioned the 2nd memory 160.
Then, finish if preserve, above-mentioned addressing generator 141 just utilizes the new synchronizing signal of input, makes above-mentioned Memory Controller 142 and data mixing device 143 carry out work, and this is in order to cooperate new synchronizing signal to read when reading memory.At this moment, because data can not be recorded again, therefore, make the people see the picture that moment is static by continuing the data of reading and saving.
Like this, substitute existing image mute (mute) signal, will see current static image.Then, import channel of changing or the input switching signal of importing the external device (ED) of wishing from above-mentioned MPEG demodulation multiplexer/decoder 120 from the user, if above-mentioned controller 110 sends the correlation reception end signal to above-mentioned store path controller 140, can carry out picture conversion to new image.
In addition, in order mildly to have the conversion of picture and new picture now, above-mentioned data mixing device 143 is provided with in the input of the signal of memory and new image data to have the 1st and sets the synergistic device that multiple (K1) and the 2nd is set the ratio of multiple (K2), the 1st that set multiple (K1) and the 2nd setting multiple (K2) be will mix under 1 the condition.
The method of mixing has: as shown in Figure 4, in vertical direction, can occur new picture from top to bottom; Also have as shown in Figure 5, relate to whole image, existing static image (b) fades away, the method that the image (c) of the motion of new input engenders.
Though the source of picture signal (source) difference, but above-mentioned the 2nd memory 160 and above-mentioned data mixing device 143 use the synchronizing signal at the new images input together, therefore in reading and saving in the view data of above-mentioned the 2nd memory 160, receive and mix new image input.
And the image mixing method during for image transitions can use the several different methods except that the method, and therefore, the above-mentioned the 1st value of setting multiple (K1) and the 2nd setting multiple (K2) can change at each image frame or each row.
Below, with reference to Fig. 6 the image processing method of the foundation image display device of the present invention that as above constitutes is described.At first, if users with channel conversion or input conversion, just when implementing audio mute (mute) from the microcomputer receiving channels with import switching signal, stage S101～S102.
Then, above-mentioned store path controller is kept at the 2nd memory with the current images image frame, stage S103.
Then, utilize new synchronizing signal, reading and saving is in the view data of above-mentioned the 2nd memory, stage S104.
Then, continue to judge whether to have received the decoding end signal, stage S105.
Then, if above-mentioned judged result S105 is for having received the decoding end signal, just with new input conversion audio frequency, the above-mentioned the 1st that set multiple (K1) and the 2nd setting multiple (K2) and be hybrid picture under 1 the condition, stage S106～S107.
Then, judge on the whole from above-mentioned image frame whether the above-mentioned the 1st value of setting multiple (K1) is initialised stage S108.
Then, be initialised, just watch with new input execution if above-mentioned judged result S108 is the above-mentioned the 1st value of setting multiple (K1), when the user imports the powered-down order till said process repeatedly, stage S109.
As mentioned above, the image processing apparatus of foundation image display device of the present invention and method are when the order of picture conversion such as conversion of user's inputting channel or input picture conversion, the rest image of picture comes alternate image quiet (mute) before showing, thereby can minimize the burden that causes to watching.
Below, with reference to Fig. 7 to Fig. 9 the image processing apparatus of foundation image display device of the present invention and the embodiment of method are described.
With reference to Fig. 2 and Fig. 3 the formation according to the image processing apparatus of image display device of the present invention is described.
The embodiment of the image processing apparatus of foundation image display device of the present invention comprises with the lower part: the button loader 100 of input customer requirements order; Reception is by the picture signal of the transmitting data stream form of antenna reception, and the MPEG demodulation multiplexer/decoder 120 of decoding; Receive the picture signal of above-mentioned MPEG demodulation multiplexer/decoder 120 and external device (ED) input, thereby handle the scaler 130 that can on picture, show; For carrying out the 1st memory 150 that mpeg decode and image processing are worked; The 2nd memory 160 that shows arbitrary graphic or Word message; Control the store path controller 140 of the view data preservation of the above-mentioned the 1st and the 2nd memory 150,160; According to whether being imported the decoding error information from above-mentioned MPEG demodulation multiplexer/decoder 120, control, when above-mentioned the 2nd memory 160 of restriction is preserved block-related picture, can export the controller 110 of the image of before it, having preserved; According to the control signal of above-mentioned controller 110, receive the image that above-mentioned store path controller 140 or above-mentioned scaler 130 are handled, to the picture transmitter 170 of display floater 180 transmission.
Here, during not using above-mentioned the 2nd memory 160, above-mentioned store path controller 140 is controlled, the view data of above-mentioned the 1st memory 150 is kept at above-mentioned the 2nd memory simultaneously, simultaneously, if above-mentioned controller 110 is transfused to decoding error information, just control, do not preserve the view data of the 1st memory 150 of the related blocks of preserving by above-mentioned the 2nd memory 160.
That is, during the view data of reduction compression, the image fragmentation of the block unit that produces when making a mistake will be very incurring dislike, at this moment, also replace it the data of preceding image frame for related blocks, thereby can more mildly handle the fragmentation of image.
For this reason, when not using above-mentioned the 2nd memory 160 at ordinary times, being kept at above-mentioned the 2nd memory 160 simultaneously with the data with above-mentioned the 1st memory 150 is principle.If send decoding error information to above-mentioned store path controller 140 from above-mentioned MPEG demodulation multiplexer/decoder 120, just control, the view data of the piece that will be correlated with therewith is not kept at above-mentioned the 2nd memory 160.
And, when showing, extract the normal data of image frame before from above-mentioned the 2nd memory 160, rather than the piece that makes a mistake, transmit to above-mentioned signal transmitter 170 then.As shown in Figure 7 and Figure 8, in the time of utilizing this method, compare with the picture of existing fragmentation (d), with before the picture replaced of image frame (e) obviously be more significant picture, on impression, will reduce very big burden sense.That is,, can be described as the image that does not almost have difference,,, can never become other image after replacing owing to be the data before the 1/60sec even say that motion is bigger for the little piece of motion.
Below, with reference to Fig. 9 the image processing method according to image display device of the present invention is described.At first, judge whether the 2nd memory is in use, stage S201.
Then, use, just view data is kept at simultaneously the 1st memory and the 2nd memory, stage S202 if above-mentioned judged result S201 is above-mentioned the 2nd memory.
Then, judge whether to take place decoding error, stage S203.
Then, from the positional information of demodulation multiplexer reception decoding error, stage S204.
Then, judge whether the positional information of above-mentioned reception is erroneous block, stage S205.
If above-mentioned judged result S205 is for being above-mentioned erroneous block, just replace the view data of the piece of relevant position, stage S206 with the view data of the relevant position that is kept at the 2nd memory.
If above-mentioned in addition judged result S205 just reads view data at the 1st memory for not being above-mentioned erroneous block, and new view data is write the 2nd memory, stage S207.
Then,, just carry out and watch, arrive afterwards and import the above-mentioned repeatedly stage S208～S210 of S201～S209 till the powered-down order to have repaired wrong picture if finish by said process S206, S207 whole image.
In addition,, do not use above-mentioned judged result S201, with regard to inapplicable broken reparation, stage S211 if being above-mentioned the 2nd memory.
As mentioned above, be the broken phenomenon of image that produces in order to prevent to reduce the view data of compression in advance according to the embodiment of the image processing apparatus of image display device of the present invention and method.When piece makes a mistake, at related blocks, detect and replace related blocks with the image of the image frame before having preserved, the user is imperceptible completely to be offended the eye thereby make, and can more cosily watch.
And, though just above-mentioned image is illustrated, sound is not described, if but the user attempts to import conversion, just will open audio mute (Mute), if receive at the numeral of new image input or the signal that analog codec has finished, just remove audio mute (mute) and be suitable for method from conversion to new audio frequency that import.
Claims (10)
1, a kind of image processing apparatus of image display device, have MPEG demodulation multiplexer and decoder, for carrying out the 1st memory that mpeg decode and image processing work, show the 2nd memory, the scaler of figure arbitrarily or Word message, it is characterized in that described image processing apparatus also comprises with the lower part:
The button loader of input customer requirements order;
If by the order of above-mentioned button loader inputting channel conversion or input selection picture conversion, just discern related command, optionally control the controller of the access of above-mentioned the 2nd memory;
According to the control signal of above-mentioned controller, handle the store path controller of rest image;
According to the control signal of above-mentioned controller, receive the image that above-mentioned store path controller or above-mentioned scaler are handled, to the picture transmitter of display floater transmission;
The store path controller is controlled, when the user imports the opening power order, then during watching with before the picture conversion and the view data during picture conversion be kept at the 1st memory all the time; During watching, if the order of picture conversion is selected in conversion of user's inputting channel or input, the view data that will be kept at during then will watching in the 1st memory is kept in the 2nd memory simultaneously, and, handle the Still image data that is kept in the 2nd memory by the data mixing device in the store path controller according to the new synchronizing signal of the generation of the addressing generator in the store path controller and the control signal of controller.
2, the image processing apparatus of image display device according to claim 1 is characterized in that above-mentioned store path controller comprises with the lower part:
If be transfused to the order that picture conversion is selected in above-mentioned channel switch or input, will be correlated with and watch that image is kept at above-mentioned the 2nd memory, just produces the addressing generator of new synchronizing signal; According to the new synchronizing signal that above-mentioned addressing generator produces, export the Memory Controller of control signal to the above-mentioned the 1st and the 2nd memory; The new synchronizing signal that produces according to above-mentioned addressing generator and the control signal of above-mentioned controller are handled the rest image that is kept at above-mentioned the 2nd memory and from the data mixing device of the picture conversion of the Streaming Media of the new input of above-mentioned scaler.
3, the image processing apparatus of image display device according to claim 2 is characterized in that above-mentioned store path controller also comprises:
The the 1st and the 2nd multiplexer; For the Still image data that is kept at above-mentioned the 2nd memory, has the 1st synergistic device of the multiplying power of the 1st setting multiple; For Streaming Media, has the 2nd synergistic device of the multiplying power of the 2nd setting multiple from the new input of scaler.
4, the image processing apparatus of image display device according to claim 3 is characterized in that: the above-mentioned the 1st set multiple and the 2nd set multiple and be 1.
5, the image processing apparatus of image display device according to claim 3 is characterized in that: it is the value that each image frame or every row can change that above-mentioned the 1st setting multiple and the 2nd is set multiple.
6, a kind of signal processing apparatus of image display device, have MPEG demodulation multiplexer and decoder, for carrying out the 1st memory that mpeg decode and image processing work, show the 2nd memory, the scaler of figure arbitrarily or Word message, it is characterized in that this signal processing apparatus comprises with the lower part:
The button loader of input customer requirements order;
Control the store path controller of the view data preservation of the above-mentioned the 1st and the 2nd memory;
Along with whether being imported decoding error information from above-mentioned MPEG demodulation multiplexer and decoder, control, thereby limit the image that above-mentioned the 2nd memory is preserved error message, can export the controller of the image of before error message, having preserved simultaneously;
According to the control signal of above-mentioned controller, receive the image that above-mentioned store path controller or above-mentioned scaler are handled, to the picture transmitter of display floater transmission;
The store path controller is controlled, and during not using above-mentioned the 2nd memory, the view data of above-mentioned the 1st memory is kept at above-mentioned the 2nd memory simultaneously; Simultaneously,, just confirm wrong generation area, with the view data repair process decoding error generation area that is kept in the 2nd memory if above-mentioned controller is transfused to decoding error information.
7, a kind of method for displaying image of image display device, image display device has MPEG demodulation multiplexer and decoder, for carrying out the 1st memory that mpeg decode and image processing work, show the 2nd memory, the scaler of figure arbitrarily or Word message, this method for displaying image is characterised in that it comprised with the next stage:
Judge whether the user imports the stage of the order of picture conversion;
Along with whether above-mentioned picture conversion order is imported, the picture image during with picture image before the picture conversion and picture conversion optionally is kept at the above-mentioned the 1st and stage of the 2nd memory; If the user imports the opening power order, then during watching with before the picture conversion and the view data during picture conversion be kept at the 1st memory all the time;
During watching, if the user imports the order of picture conversion, the view data that will be kept at during then will watching in the 1st memory is kept in the 2nd memory simultaneously, and when picture conversion is carried out in the order of foundation picture conversion, synchronizing signal according to new generation, view data when the picture conversion order of reading and saving in above-mentioned the 2nd memory imported realizes the stage according to the picture conversion of mentioned order.
8, the method for displaying image of image display device according to claim 7 is characterized in that: above-mentioned realization comprised with the next stage according to the stage of the picture conversion of order:
After view data when above-mentioned conversion command is imported was kept at above-mentioned the 2nd memory, according to new synchronizing signal, reading and saving was in the stage of the view data of above-mentioned the 2nd memory;
Judge whether to import stage according to the conversion picture codec end of above-mentioned conversion command;
If imported the decoding end signal, just change the audio frequency of new input and the stage of image.
9, a kind of image processing method of image display device, image display device has MPEG demodulation multiplexer and decoder, for carrying out the 1st memory that mpeg decode and image processing work, show the 2nd memory, the scaler of figure arbitrarily or Word message, it is characterized in that this method comprised with the next stage:
Grasp the stage whether above-mentioned the 2nd memory uses;
If above-mentioned the 2nd memory is not used, the view data that just will be kept at above-mentioned the 1st memory is kept at the stage of above-mentioned the 2nd memory simultaneously;
Judge whether the stage of above-mentioned MPEG demodulation multiplexer and decoder generation decoding error;
If above-mentioned decoding error takes place, just confirm the relevant error zone, with the stage of the view data repair process zone errors that are kept at above-mentioned the 2nd memory.
10, the image processing method of image display device according to claim 9 is characterized in that the stage of above-mentioned repair process zone errors comprised with the next stage:
If above-mentioned decoding error takes place, just receive stage from the decoding error positional information of MPEG demodulation multiplexer and decoder;
If the above-mentioned decoding error positional information that receives is an erroneous block, just replace the stage of zone errors view data with the view data that is kept at above-mentioned the 2nd memory;
If the above-mentioned decoding error positional information that receives is not an erroneous block, just reads the view data of above-mentioned the 1st memory, and carry out simultaneously the stage of the data that write the 2nd memory;
If through above image processing process, whole image finishes, just the stage of watching with the picture of mis repair.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2005-0102137 | 2005-10-28 | ||
| KR1020050102137 | 2005-10-28 | ||
| KR1020050102137A KR100722027B1 (en) | 2005-10-28 | 2005-10-28 | Method and apparatus for processing an image of an image display device |
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| CN1901612A CN1901612A (en) | 2007-01-24 |
| CN100435553C true CN100435553C (en) | 2008-11-19 |
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| CNB200610115893XA Expired - Fee Related CN100435553C (en) | 2005-10-28 | 2006-08-17 | Image processing device and method for image display device |
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| KR (1) | KR100722027B1 (en) |
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| CN101355706B (en) * | 2008-08-15 | 2010-06-16 | 中兴通讯股份有限公司 | Method and apparatus for analyzing multiplexing code stream of multiplexer |
| KR101235305B1 (en) * | 2011-06-20 | 2013-02-21 | 주식회사 아이티엑스시큐리티 | Display control apparatus for settled picture losing phenomenon |
| CN111836075B (en) * | 2019-04-15 | 2022-09-30 | 深信服科技股份有限公司 | Virtual desktop frame supplementing method and device, electronic equipment and readable storage medium |
| CN112004065B (en) * | 2020-09-03 | 2022-10-04 | 杭州海康威视数字技术股份有限公司 | Video display method, display device and storage medium |
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| WO1999016247A1 (en) * | 1997-09-26 | 1999-04-01 | Sarnoff Corporation | Channel scanning and channel change latency reduction in an atsc television receiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000041197A (en) | 1998-07-24 | 2000-02-08 | Matsushita Electric Ind Co Ltd | Television receiver |
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| US5719637A (en) * | 1994-11-07 | 1998-02-17 | Sony Corporation | Television signal receiver and broadcast channel selecting method |
| WO1999016247A1 (en) * | 1997-09-26 | 1999-04-01 | Sarnoff Corporation | Channel scanning and channel change latency reduction in an atsc television receiver |
| CN1351799A (en) * | 1999-05-17 | 2002-05-29 | 奥米克龙塞蒂股份公司 | Device for changing channels in a digital television reception system |
| CN1507277A (en) * | 2002-12-11 | 2004-06-23 | Lg电子株式会社 | Digital television and method of automatic switching channel |
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| CN1901612A (en) | 2007-01-24 |
| KR20070045638A (en) | 2007-05-02 |
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