CN101025910A - Image data converting system and method - Google Patents
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Abstract
The invention discloses a system and method for converting the image data, in which, the preserving unit of image data send the received synchronized signals of data source frame to the management unit of the first task queue, and sends controlling signals to the management unit of the first task queue after the deposition in each memory cell of image size data. The management unit of the first task queue stores the received signals by turn and provides preserved signals for the image data access unit in accordance with the mechanism FIFO. When completing last operation, the image data access unit resets based on the synchronized frame signal if it accesses the signal from the first task queue, or the image data access unit accesses image data corresponding to preserving unit if it accesses the control signals.
Description
Technical field
The present invention relates to image data processing technique, particularly a kind of image data converting system and method.
Background technology
In compression of images is used, image display is normally according to the mode input picture of lining by line scan, and the compression algorithm that image compressor adopts is normally done computing to the image of n * m, wherein n and m all are positive integers, n represents columns, therefore m represents line number, and before the view data with the image display input sends image compressor to and compresses, the image data unit piece that the view data that needs to import line by line converts n * m to exports image compressor to.On the contrary, in image decompressor is used, the decompression algorithm that image decompressor adopts is normally done computing to the image of n * m, and image decompressor output also is the image data unit piece of n * m, and image display generally all receives only the view data of input line by line, do line by line, interlace mode shows, therefore before the image with image decompressor output sends image display to, the image data unit piece need be converted to the view data of input line by line.
Fig. 1 is the structural drawing of image data converting system in the compressed and decompressed application of prior art.This system comprises: scanning addressing logic unit and storer.
In Image Data Compression is used, described scanning addressing logic unit resets simultaneously according to the data source frame synchronizing signal that receives and deposits and read logic in, at first adopt equal-sized first storage unit and second storage unit that the view data by line scanning of image display input are deposited successively in storer by the mode of row addressing, and when determining to satisfy the condition of beginning read operation, employing is read the view data that has deposited in the storer by the mode of piece addressing, will output in the image compressor by the view data that piece reads again.
In image decompressor is used, described scanning addressing logic unit resets simultaneously according to the data source frame synchronizing signal that receives and deposits and read logic in, at first adopt equal-sized first storage unit and second storage unit that the view data by block scan of image decompressor input are deposited successively in storer by the mode of piece addressing, and when determining to satisfy the condition of beginning read operation, employing is read the view data that has deposited in the storer by the mode of row addressing, exports the view data that reads to image display again.
Utilize prior art system shown in Figure 1, when carrying out the conversion of image data lines piece, if this system receives two frame image datas continuously, or the frame period of two frame image datas is very little, to such an extent as to the former frame view data does not read when finishing as yet, the frame synchronizing signal of second frame image data has been transferred to described scanning addressing logic unit.At this moment scan the addressing logic unit and will reset again and read and deposit in logic, cause the previous frame view data can't complete transmission.In order to guarantee that depositing the complete of view data in reads, available technology adopting strengthen the mode of frame period, and this mode must cause the reduction of frame per second in the conversion of image data lines piece, makes the continuity variation that image shows.Frame per second is meant the frame number of per second transmission, and the continuity that shows of hi-vision is good more more for the continuity that can token image shows, frame per second.
In other view data transfer process, also may there be similar problem, handles,, have to strengthen frame period, and then cause the reduction of frame per second therefore in order to guarantee the integrality of data transmission because view data reads and deposits in by a unit is unified.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of image data converting system, under the prerequisite that guarantees the view data complete transmission, improves the frame per second in the view data conversion.
Another fundamental purpose of the present invention is to provide a kind of image data conversion method, under the prerequisite that guarantees the view data complete transmission, improves the frame per second in the view data conversion.
First aspect in order to achieve the above object the invention provides a kind of image data converting system, and this system comprises: view data reading unit, view data deposit unit, at least two storage unit and first task queue management unit in,
Described view data deposits the unit in, be used to receive the data source ranks synchronizing signal of described data transmitting equipment output, frame synchronizing signal and view data, described frame synchronizing signal is sent to described first task queue management unit, utilize described frame synchronizing signal to reset, utilize described ranks synchronizing signal to determine that view data deposits the address and the interface logic signal sequence of described storage unit in, deposit the view data that receives in each storage unit successively, after storage unit deposits the view data of setting size in, send one group of control signal each time to described first task queue management unit;
Described first task queue management unit, be used to receive and preserve successively frame synchronizing signal and the control signal that deposits the unit from described view data in, and adopt the mechanism of first in first out that frame synchronizing signal or the control signal that receives offered described view data reading unit;
Described view data reading unit, on finishing once read task after, if from described first task queue management unit, read frame synchronizing signal, then utilize this frame synchronizing signal to reset; If read one group of control signal, reads image data from the storage unit of this group control signal correspondence then, and export described data receiver to.
If described at least two storage unit are arranged in same storer, and this storer has an interface, and then this system further comprises: the arbitration unit and first multi-way switch,
Described arbitration unit links to each other with described first multi-way switch, is used to control the shutoff of described first each passage of multi-way switch;
Described first multi-way switch links to each other with described view data reading unit and described storer and constitutes first passage; Described first multi-way switch and described view data deposit unit and described storer in and link to each other and constitute second passage.
Preferably, this system further comprises: the second task queue administrative unit, this second task queue administrative unit connects described data transmitting equipment and described view data deposits the unit in, be used to receive and preserve successively data source ranks synchronizing signal, frame synchronizing signal and view data, deposit the unit according to the mechanism of first in first out in to described view data data source ranks synchronizing signal, frame synchronizing signal and view data are provided from described data transmitting equipment.
When described data transmitting equipment and described view data deposited the unit in and be in different clock-domains, the described second task queue administrative unit had the asynchronous clock domain processing capacity; When described data transmitting equipment and described view data deposited the unit in and be in same clock zone, the described second task queue administrative unit had synchronous clock territory processing capacity.
Preferably, this system further comprises: the 3rd task queue administrative unit, described the 3rd task queue administrative unit link to each other with data receiver by the second image IO interface and carry out information interaction,
Described the 3rd task queue administrative unit, be used to receive and preserve successively data source frame synchronizing signal and view data, data source frame synchronizing signal and the view data that receives offered the described second image IO interface according to the mechanism of first in first out from described view data reading unit;
The second image IO interface, be used for output task once on finishing after, obtain data source frame synchronizing signal and view data from described the 3rd FIFO, and with the image data transmission that gets access to described data receiver.
When described data receiver and described view data reading unit were in different clock-domains, described the 3rd task queue administrative unit had the asynchronous clock domain processing capacity; When described data receiver and described view data reading unit were in same clock zone, described the 3rd task queue administrative unit had synchronous clock territory processing capacity.
When described system comprised more than one the second image IO interface, this system further comprised the 3rd multi-way switch, connects each second image IO interface and described the 3rd task queue administrative unit.
Each described data transmitting equipment links to each other with the described second task queue administrative unit by one first image IO interface and carries out information interaction.
When described system comprised more than one the first image IO interface, this system further comprised second multi-way switch, connects each first image IO interface and the described second task queue administrative unit.
The size of described each storage unit equals the integral multiple that described system carries out the line number that minimum arithmetic element requires of image transitions at least.
In the view data process that will be converted to by the view data of line scanning by block scan, described view data deposits the unit in for by line scanning storage selected cell, and the view data by line scanning that this unit adopts the mode by the row addressing to receive deposits in each storage unit successively;
Described view data reading unit is for press block scan storage selected cell, and corresponding view data is read and exported to this unit employing by the mode of piece addressing from the storage unit of the control signal correspondence that reads.
In the view data process that will be converted to by the view data of block scan by line scanning, described view data deposits the unit in for by block scan storage selected cell, and the view data by block scan that this unit adopts the mode by the piece addressing to receive deposits each storage unit successively in;
Described view data reading unit is for by line scanning storage selected cell, and this unit adopts by the mode of row addressing and reads and export corresponding view data from the storage unit of the control signal correspondence that reads.
Described task queue administrative unit is: support the storer FIFO of first in first out mechanism, or the device with first in first out mechanism of storage unit and peripheral control circuit composition.
Second aspect in order to achieve the above object the invention provides a kind of image data conversion method, and in the time of will being converted to the view data by block scan by the view data of line scanning, this method comprises the steps:
A, receive data source ranks synchronizing signal, frame synchronizing signal and view data from data transmitting equipment;
B, utilize the operation of described frame synchronizing signal reset write, determine that according to described data source ranks synchronizing signal described view data deposits the address and the interface logic signal sequence of storage unit in, deposit described view data in each storage unit successively, each time after storage unit deposits the view data of setting size in, generate one group of control signal, preserve the frame synchronizing signal receive and the control signal of generation in order;
C, after the last once task that reads is finished, the mechanism of getting reads the signal of having preserved according to depositing earlier earlier, if the frame synchronizing signal of reading is then utilized the read operation that resets of this frame synchronizing signal; If the control signal of reading, then the storage unit from this control signal correspondence reads corresponding view data, and outputs it to data receiver.
In the time of will being converted to the view data by block scan by the view data of line scanning,
The described reception view data of steps A is: receive the view data by line scanning;
The described method that deposits described view data in each storage unit successively of step B is: take the mode by line scanning storage addressing, deposit the view data that receives in each storage unit successively;
The described method that reads and export corresponding view data from the storage unit of described control signal correspondence of step C is: take the mode by the block scan addressing, read and export corresponding view data from the storage unit of described control signal correspondence.
In the time of will being converted to the view data by line scanning by the view data of block scan,
The described reception view data of steps A is: receive the view data of pressing block scan;
The described method that deposits described view data in each storage unit successively of step B is: take the mode by block scan storage addressing, deposit described view data in each storage unit successively;
The described method that reads and export corresponding view data from the storage unit of described control signal correspondence of step C is: take the mode by the line scanning addressing, read and export corresponding view data from the storage unit of described control signal correspondence.
The size of each storage unit more than or equal to the positive integer of the line number that minimum arithmetic element requires of carrying out image transitions doubly;
Step B is described after storage unit deposits the view data of setting size in to be each time: each time after storage unit deposits the view data of integral multiple of line number that minimum arithmetic element requires that size equals to carry out image transitions in.
By above technical scheme as seen, image data converting system that the embodiment of the invention provides and method, the process branch deposits the unit in by view data and the view data reading unit is handled by view data is read and deposits in, and between these two unit the task queue administrative unit is set.View data deposits the unit in and at first utilizes the data source frame synchronizing signal that receives to reset, and the former frame synchronizing signal of described data is sent to first task queue management unit.When view data deposits the unit in after each storage unit deposits the big or small view data of setting in, send one group of control signal to first task queue management unit.Data source frame synchronizing signal or the control signal that receives preserved successively according to the sequencing that receives in first task queue management unit, and adopts the advanced mechanism that reveals that the signal that receives is provided to the view data reading unit.The view data reading unit is on finishing behind once the read operation, from first task queue management unit reads data source frame synchronizing signal and utilize this signal to reset, read one group of control signal from first task queue management unit more afterwards, carry out read operation according to this control signal.Therefore, utilize the disclosed system and method for the embodiment of the invention can make view data read and deposit in the unit and work, make that the interval of two frame image datas is very little, even be zero, and then improve the frame per second in the view data conversion according to the mode of streamline.
Simultaneously, the image converter system that the embodiment of the invention provides promptly can be used for the synchronous clock territory, also can be used for asynchronous clock domain, the situation of corresponding different clock-domains, only need the function and the structure of corresponding task queue administrative unit in the Adjustment System, its demand that adapts to different clock-domains is got final product.
Description of drawings
Fig. 1 is the structural drawing of image data converting system in the compressed and decompressed application of prior art;
Fig. 2 is the structural drawing of the image data converting system of the embodiment of the invention;
Fig. 3 is the structural drawing of image data converting system embodiment of the present invention in compression of images is used;
Fig. 4 is the structural drawing of image data converting system embodiment of the present invention in image decompressor is used;
Fig. 5 will be converted to process flow diagram by the block scan view data by the line scanning view data for the embodiment of the invention;
Fig. 6 will be converted to process flow diagram by the line scanning view data by the block scan view data for the embodiment of the invention.
Embodiment
For making purpose of the present invention, technical scheme and beneficial effect clearer,, the present invention is done detailed description further below in conjunction with embodiment and accompanying drawing.
Fig. 2 is the structural drawing of image data converting system embodiment of the present invention.This system connects at least one data transmitting apparatus and at least one data receiver.This system comprises: view data reading unit, view data deposit unit, at least two storage unit and first task queue management unit in,
View data deposits the unit in, be used to receive the data source ranks synchronizing signal of data transmitting equipment output, frame synchronizing signal and view data, described frame synchronizing signal is sent to first task queue management unit, utilize described frame synchronizing signal to reset, utilize described ranks synchronizing signal to determine that view data deposits the address and the interface logic signal sequence of described storage unit in, deposit the view data that receives in each storage unit successively, each time after storage unit deposits the view data of setting size in, send one group of control signal to first task queue management unit, this control signal is used for representing that corresponding storage unit has deposited the view data of setting size in;
First task queue management unit is used to receive and preserve successively frame synchronizing signal and the control signal that deposits the unit from view data in, and adopts the mechanism of first in first out that frame synchronizing signal or the control signal that receives offered the view data reading unit;
The view data reading unit, on finishing once read task after, if from first task queue management unit, read frame synchronizing signal, then utilize this frame synchronizing signal to reset; If read one group of control signal, reads image data from the storage unit of this group control signal correspondence then, and export data receiver to.
Wherein, first task queue management unit can be realized with FIFO, also can realize with the device with first in first out mechanism that storage unit and peripheral control circuit are formed.
The size of each storage unit among Fig. 2 can be set to: more than or equal to the positive integer of the line number that minimum arithmetic element requires of carrying out image transitions doubly.Depositing the view data of setting size in each storage unit is: deposit the view data of positive integer times that size equals to carry out the line number that minimum arithmetic element requires of image transitions in each storage unit.The size of each storer can be identical, also can be different.
Storage unit in the described system of Fig. 2 is arranged in same storer, and this storer has an interface, and then this system further comprises: the arbitration unit and first multi-way switch,
Arbitration unit links to each other with first multi-way switch, is used to control the shutoff of first each passage of multi-way switch;
First multi-way switch links to each other with view data reading unit and storer and constitutes first passage; First multi-way switch and view data deposit unit and storer in and link to each other and constitute second passage.
The principle of arbitration unit design can for: when needing read-write memory at the same time, the priority of write operation is higher than the priority of read operation.The design of arbitration unit can be determined according to actual conditions, but should satisfy following condition: in the read-write operation process to storer, designed arbitration unit can make the bandwidth of memory interface be fully utilized for the shutoff mechanism of first each passage of multi-way switch.
The image data converting system that provides embodiment illustrated in fig. 2 can also deposit in data transmitting equipment and view data the second task queue administrative unit is set between the unit, and each data transmitting equipment links to each other with the second task queue administrative unit by one first image IO interface and carries out information interaction.When system comprised more than one the first image IO interface, this system further comprised second multi-way switch, connects each the first image IO interface and the second task queue administrative unit.
The second task queue administrative unit is used to receive and preserve successively data source ranks synchronizing signal, frame synchronizing signal and the view data from data transmitting equipment, deposits the unit according to the mechanism of first in first out in to view data data source ranks synchronizing signal, frame synchronizing signal and view data are provided.After view data deposits the unit in once deposit operation on finishing, from the second task queue administrative unit reading of data source ranks synchronizing signal, frame synchronizing signal and view data.
When data transmitting equipment and view data deposited the unit in and be in different clock-domains, the second task queue administrative unit had the asynchronous clock domain processing capacity, if the second task queue administrative unit is FIFO, then is asynchronous FIFO; When data transmitting equipment and described view data deposited the unit in and be in same clock zone, the second task queue administrative unit had synchronous clock territory processing capacity, if the second task queue administrative unit is FIFO, then is synchronization fifo.
Image data converting system shown in Figure 2 can also be provided with the 3rd task queue administrative unit between data receiver and view data reading unit, each data receiver links to each other with the 3rd task queue administrative unit by one second image IO interface and carries out information interaction.When system comprised more than one the second image IO interface, this system further comprised the 3rd multi-way switch, connects each second image IO interface and the 3rd task queue administrative unit.
The 3rd task queue administrative unit is used to receive and preserve successively data source frame synchronizing signal and the view data from the view data reading unit, according to the mechanism of first in first out data source frame synchronizing signal and the view data that receives is offered the second image IO interface that links to each other with corresponding data receiver.
When data receiver and view data reading unit were in different clock-domains, the 3rd task queue administrative unit had the asynchronous clock domain processing capacity, if the 3rd task queue administrative unit is FIFO, then is asynchronous FIFO; When data receiver and view data reading unit were in same clock zone, the 3rd task queue administrative unit had synchronous clock territory processing capacity, if the 3rd task queue administrative unit is FIFO, then is synchronization fifo.
Fig. 3 is the structural drawing of image data converting system embodiment of the present invention in compression of images is used.Comprise a storer among this embodiment in the initialization system, this storer comprises two equal-sized storage unit, and the size of each storage unit equals the positive integer times of minimum arithmetic element the require line number of compression of images in using, such as 1 times.
This system connects image display and image compressor, the two is corresponding with data transmitting equipment and data receiver among Fig. 2 respectively, and this system comprises: the first image IO interface (I/O), a FIFO, by line scanning storage selected cell, press block scan and store selected cell, the 2nd FIFO, storer, the 3rd FIFO, the second image IO interface.
Wherein, the first image IO interface is used for giving the 2nd FIFO with the data source frame synchronizing signal of image display output, ranks synchronizing signal and by the image data transmission of line scanning.
The 2nd FIFO, be used to receive and preserve successively data source frame synchronizing signal, ranks synchronizing signal and view data from the first image IO interface, the mechanism that adopts first in first out is to providing data source ranks synchronizing signal, frame synchronizing signal and view data by line scanning storage selected cell.
By line scanning storage selected cell, be used on finishing once deposit operation in after, if from the 2nd FIFO, read the data source frame synchronizing signal, then this data source frame synchronizing signal is sent to a FIFO, utilize this frame synchronizing signal to reset, if read data source ranks synchronizing signal and view data, then utilize this data source ranks synchronizing signal to determine that view data deposits the address and the interface logic signal sequence of described storer in, the view data that reads is adopted equal-sized first storage unit and second storage unit that deposits storer by the mode of line scanning storage addressing successively in, and after each storage unit is filled with, send one group of control signal to a FIFO, this control signal is used to represent that corresponding storage unit is filled with.
The one FIFO receives the described data source frame synchronizing signal that sends by line scanning storage selected cell, and adopts the mechanism of first in first out the data source frame synchronizing signal that receives to be sent to described by block scan storage selected cell.
Press block scan storage selected cell, on finishing, after once the read operation,, then utilize this frame synchronizing signal to reset if from a FIFO, read the data source frame synchronizing signal; If read one group of control signal, then adopt mode from the storage unit of this control signal correspondence, to read corresponding view data, and the view data that reads is sent to the 3rd FIFO by the block scan addressing.
The 3rd FIFO is used to receive and preserve successively the data source frame synchronizing signal and the view data of storing selected cell from by block scan, adopts the mechanism of first in first out to provide data source frame synchronizing signal and view data to the second image IO interface.
The second image IO interface, be used for output task once on finishing after, obtain data source frame synchronizing signal and view data from the 3rd FIFO, and with the image data transmission that gets access to image compressor.
Fig. 4 is the structural drawing of image data converting system embodiment of the present invention in image decompressor is used.Comprise a storer among this embodiment in the initialization system, this storer comprises two equal-sized storage unit, and the size of each storage unit equals the positive integer times of minimum arithmetic element the require line number of compression of images in using, such as 1 times.
This system connects image display and image decompressor, the two is corresponding with data receiver and data transmitting equipment among Fig. 2 respectively, and this system comprises: the first image IO interface, a FIFO, by line scanning storage selected cell, press block scan and store selected cell, the 2nd FIFO, storer, the 3rd FIFO, the second image IO interface.The view data reading unit and the view data of wherein storing selected cell by line scanning and corresponding respectively among Fig. 2 by block scan storage selected cell deposit the unit in.
Wherein, the first image IO interface is used for giving the 2nd FIFO with the data source frame synchronizing signal of image decompressor output, ranks synchronizing signal and by the image data transmission of block scan.
The 2nd FIFO, be used to receive and preserve successively data source ranks synchronizing signal, frame synchronizing signal and view data from the first image IO interface, the mechanism that adopts first in first out is to providing data source frame synchronizing signal, ranks synchronizing signal and view data by block scan storage selected cell.
Press block scan storage selected cell, be used on finishing once deposit operation in after, if from the 2nd FIFO, read the data source frame synchronizing signal, then this data source frame synchronizing signal is sent to a FIFO, utilize this frame synchronizing signal to reset, if read data source ranks synchronizing signal and view data, then utilize this data source ranks synchronizing signal to determine that view data deposits the address and the interface logic signal sequence of described storer in, the view data that reads is adopted equal-sized first storage unit and second storage unit that deposits storer by the mode of block scan storage addressing successively in, and after each storage unit is filled with, send one group of control signal of representing that the corresponding stored unit has been filled with to a FIFO.
The one FIFO receives and preserves successively from data source frame synchronizing signal and control signal by block scan storage selected cell, and the mechanism that adopts first in first out is to providing data source frame synchronizing signal and control signal by line scanning storage selected cell.Providing here is not the meaning that active sends, and just when pressing block scan storage selected cell from first fifo read signal, a FIFO provides signal according to the sequencing of preserving to storing selected cell by block scan.
The one FIFO is a synchronization fifo, because store selected cell and press block scan storage selected cell in same clock zone by line scanning.
By line scanning storage selected cell, on finishing, after once the read operation,, then utilize this frame synchronizing signal to reset if from a FIFO, read the data source frame synchronizing signal; If read one group of control signal, then adopt mode from the storage unit of this control signal correspondence, to read corresponding view data, and the view data that reads is sent to the 3rd FIFO by the line scanning addressing.
The 3rd FIFO is used to receive and preserve successively the data source frame synchronizing signal and the view data of storing selected cell from by block scan, adopts the mechanism of first in first out to provide data source frame synchronizing signal and view data to the second image IO interface.
The second image IO interface, be used for output task once on finishing after, obtain data source frame synchronizing signal and view data from the 3rd FIFO, and with the image data transmission that gets access to image display.
In Fig. 3 and embodiment shown in Figure 4, if first and second clock zones are the synchronous clock territory, then described the 2nd FIFO is a synchronization fifo; Otherwise be asynchronous FIFO; If the first and the 3rd clock zone is the synchronous clock territory, then the 3rd FIFO is a synchronization fifo; Otherwise be asynchronous FIFO.This shows that the system that the embodiment of the invention provides can be applied in the situation of cross clock domain.
In Fig. 3 and the image data converting system shown in Figure 4, comprise two first image IO interface and two second image IO interface.Between the first image IO interface and the 2nd FIFO, link to each other by second multi-way switch (MUX).Between the second image IO interface and the 3rd FIFO, link to each other by the 3rd multi-way switch (MUX).
The storer with an interface of storer among Fig. 3 and Fig. 4 for being made of first storage unit and second storage unit also comprises the arbitration unit and first multi-way switch in the system shown in therefore.
Arbitration unit links to each other with first multi-way switch, first multi-way switch also with by line scanning storage selected cell, store selected cell and storer links to each other respectively by block scan.First multi-way switch can link to each other with the interface of storer by a data passage of bus, also can directly link to each other with the interface of storer.
Described arbitration unit is used to control the shutoff of first each passage of multi-way switch.Wherein, passage links to each other by first multi-way switch, by line scanning storage selected cell and storer and constitutes; Another passage links to each other by first multi-way switch, by block scan storage selected cell and storer and constitutes.
The present invention provides a kind of image data conversion method simultaneously, and this method comprises the steps:
A, receive data source ranks synchronizing signal, frame synchronizing signal and view data from data transmitting equipment;
The frame synchronizing signal reset write operation that B, utilization receive, determine that according to the data source ranks synchronizing signal that receives described view data deposits the address and the interface logic signal sequence of storage unit in, deposit described view data in each storage unit successively, each time after storage unit deposits the view data of setting size in, generate one group of control signal, preserve the frame synchronizing signal receive and the control signal of generation sequentially;
C, after the last once task that reads is finished, the mechanism of getting reads the signal of having preserved according to depositing earlier earlier, if the frame synchronizing signal of reading is then utilized the read operation that resets of this frame synchronizing signal; If the control signal of reading, then the storage unit from this control signal correspondence reads corresponding view data, and outputs it to data receiver.
In the method, the size of each storage unit can for: more than or equal to the positive integer of the line number that minimum arithmetic element requires of carrying out image transitions doubly;
Step B described each time after storage unit deposits the view data of setting size in can for: each time after storage unit deposits the view data of integral multiple of line number that minimum arithmetic element requires that size equals to carry out image transitions in, such as 1 times.A kind of special case is: the size of each storage unit equals to carry out the desired line number of minimum arithmetic element of image transitions, step B is described after storage unit deposits the view data of setting size in to be each time: each time after storage unit deposits the view data of the line number that minimum arithmetic element requires of carrying out image transitions in, promptly be filled with a storage unit each time after.
Fig. 5 will be converted to process flow diagram by the block scan view data by the line scanning view data for the embodiment of the invention, and this flow process comprises the steps:
Step 501 receives data source frame synchronizing signal, ranks synchronizing signal from data transmitting equipment and the view data of pressing line scanning.
This flow process can be applied in the view data transfer process of compression of images application, image display output data source frame synchronizing signal, ranks synchronizing signal and the view data of pressing line scanning,, after the capable piece conversion process of step 503, output to image compressor and carry out the Image Data Compression processing through step 50 1.
Fig. 6 will be converted to process flow diagram by the line scanning view data by the block scan view data for the embodiment of the invention, and this flow process comprises the steps:
Step 601 receives from data source frame synchronizing signal, the ranks synchronizing signal of data transmitting equipment and the view data of pressing block scan.
This flow process can be used in the image data lines piece transfer process of image decompressor application, image decompressor output data source frame synchronizing signal, ranks synchronizing signal and the view data of pressing line scanning, after the capable piece conversion process of step 603, will give image display through step 601 through the image data transmission that decompresses.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1, a kind of image data converting system, it is characterized in that, this system connects at least one data transmitting apparatus and at least one data receiver, and this system comprises: view data reading unit, view data deposit unit, at least two storage unit and first task queue management unit in
Described view data deposits the unit in, be used to receive the data source ranks synchronizing signal of described data transmitting equipment output, frame synchronizing signal and view data, described frame synchronizing signal is sent to described first task queue management unit, utilize described frame synchronizing signal to reset, utilize described ranks synchronizing signal to determine that view data deposits the address and the interface logic signal sequence of described storage unit in, deposit the view data that receives in each storage unit successively, after storage unit deposits the view data of setting size in, send one group of control signal each time to described first task queue management unit;
Described first task queue management unit, be used to receive and preserve successively frame synchronizing signal and the control signal that deposits the unit from described view data in, and adopt the mechanism of first in first out that frame synchronizing signal or the control signal that receives offered described view data reading unit;
Described view data reading unit, on finishing once read task after, if from described first task queue management unit, read frame synchronizing signal, then utilize this frame synchronizing signal to reset; If read one group of control signal, reads image data from the storage unit of this group control signal correspondence then, and export described data receiver to.
2, the system as claimed in claim 1 is characterized in that, if described at least two storage unit are arranged in same storer, and this storer has an interface, and then this system further comprises: the arbitration unit and first multi-way switch,
Described arbitration unit links to each other with described first multi-way switch, is used to control the shutoff of described first each passage of multi-way switch;
Described first multi-way switch links to each other with described view data reading unit and described storer and constitutes first passage; Described first multi-way switch and described view data deposit unit and described storer in and link to each other and constitute second passage.
3, the system as claimed in claim 1, it is characterized in that, this system further comprises: the second task queue administrative unit, this second task queue administrative unit connects described data transmitting equipment and described view data deposits the unit in, be used to receive and preserve successively data source ranks synchronizing signal, frame synchronizing signal and view data, deposit the unit according to the mechanism of first in first out in to described view data data source ranks synchronizing signal, frame synchronizing signal and view data are provided from described data transmitting equipment.
4, system as claimed in claim 3 is characterized in that, when described data transmitting equipment and described view data deposited the unit in and be in different clock-domains, the described second task queue administrative unit had the asynchronous clock domain processing capacity; When described data transmitting equipment and described view data deposited the unit in and be in same clock zone, the described second task queue administrative unit had synchronous clock territory processing capacity.
5, the system as claimed in claim 1 is characterized in that, this system further comprises: the 3rd task queue administrative unit, described the 3rd task queue administrative unit link to each other with data receiver by the second image IO interface and carry out information interaction,
Described the 3rd task queue administrative unit, be used to receive and preserve successively data source frame synchronizing signal and view data, data source frame synchronizing signal and the view data that receives offered the described second image IO interface according to the mechanism of first in first out from described view data reading unit;
The second image IO interface, be used for output task once on finishing after, obtain data source frame synchronizing signal and view data from described the 3rd FIFO, and with the image data transmission that gets access to described data receiver.
6, system as claimed in claim 5 is characterized in that, when described data receiver and described view data reading unit were in different clock-domains, described the 3rd task queue administrative unit had the asynchronous clock domain processing capacity; When described data receiver and described view data reading unit were in same clock zone, described the 3rd task queue administrative unit had synchronous clock territory processing capacity.
7, as claim 5 or 6 described systems, it is characterized in that, when described system comprised more than one the second image IO interface, this system further comprised the 3rd multi-way switch, connects each second image IO interface and described the 3rd task queue administrative unit.
8, system as claimed in claim 3 is characterized in that, each described data transmitting equipment links to each other with the described second task queue administrative unit by one first image IO interface and carries out information interaction.
9, system as claimed in claim 8, it is characterized in that, when described system comprised more than one the first image IO interface, this system further comprised second multi-way switch, connects each first image IO interface and the described second task queue administrative unit.
10, the system as claimed in claim 1 is characterized in that, the size of described each storage unit equals the integral multiple that described system carries out the line number that minimum arithmetic element requires of image transitions at least.
11, as each described system of claim 1 to 10, it is characterized in that, in the view data process that will be converted to by the view data of line scanning by block scan, described view data deposits the unit in for by line scanning storage selected cell, and the view data by line scanning that this unit adopts the mode by the row addressing to receive deposits in each storage unit successively;
Described view data reading unit is for press block scan storage selected cell, and corresponding view data is read and exported to this unit employing by the mode of piece addressing from the storage unit of the control signal correspondence that reads.
12, as each described system of claim 1 to 10, it is characterized in that, in the view data process that will be converted to by the view data of block scan by line scanning, described view data deposits the unit in for by block scan storage selected cell, and the view data by block scan that this unit adopts the mode by the piece addressing to receive deposits each storage unit successively in;
Described view data reading unit is for by line scanning storage selected cell, and this unit adopts by the mode of row addressing and reads and export corresponding view data from the storage unit of the control signal correspondence that reads.
As each described system of claim 1 to 10, it is characterized in that 13, described task queue administrative unit is: support the storer FIFO of first in first out mechanism, or the device with first in first out mechanism of storage unit and peripheral control circuit composition.
14, a kind of image data conversion method is characterized in that, this method comprises the steps:
A, receive data source ranks synchronizing signal, frame synchronizing signal and view data from data transmitting equipment;
B, utilize the operation of described frame synchronizing signal reset write, determine that according to described data source ranks synchronizing signal described view data deposits the address and the interface logic signal sequence of storage unit in, deposit described view data in each storage unit successively, each time after storage unit deposits the view data of setting size in, generate one group of control signal, preserve the frame synchronizing signal receive and the control signal of generation in order;
C, after the last once task that reads is finished, the mechanism of getting reads the signal of having preserved according to depositing earlier earlier, if the frame synchronizing signal of reading is then utilized the read operation that resets of this frame synchronizing signal; If the control signal of reading, then the storage unit from this control signal correspondence reads corresponding view data, and outputs it to data receiver.
15, method as claimed in claim 14 is characterized in that, in the time of will being converted to the view data by block scan by the view data of line scanning,
The described reception view data of steps A is: receive the view data by line scanning;
The described method that deposits described view data in each storage unit successively of step B is: take the mode by line scanning storage addressing, deposit the view data that receives in each storage unit successively;
The described method that reads and export corresponding view data from the storage unit of described control signal correspondence of step C is: take the mode by the block scan addressing, read and export corresponding view data from the storage unit of described control signal correspondence.
16, method as claimed in claim 14 is characterized in that, in the time of will being converted to the view data by line scanning by the view data of block scan,
The described reception view data of steps A is: receive the view data of pressing block scan;
The described method that deposits described view data in each storage unit successively of step B is: take the mode by block scan storage addressing, deposit described view data in each storage unit successively;
The described method that reads and export corresponding view data from the storage unit of described control signal correspondence of step C is: take the mode by the line scanning addressing, read and export corresponding view data from the storage unit of described control signal correspondence.
As each described method of claim 14 to 16, it is characterized in that 17, the size of each storage unit more than or equal to the positive integer of the line number that minimum arithmetic element requires of carrying out image transitions doubly;
Step B is described after storage unit deposits the view data of setting size in to be each time: each time after storage unit deposits the view data of integral multiple of line number that minimum arithmetic element requires that size equals to carry out image transitions in.
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| CNB2007100652683A CN100561567C (en) | 2007-04-09 | 2007-04-09 | A kind of image data converting system and method |
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| CNB2007100652683A CN100561567C (en) | 2007-04-09 | 2007-04-09 | A kind of image data converting system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101667110A (en) * | 2008-09-04 | 2010-03-10 | 三星Techwin株式会社 | Image processing apparatus |
| CN102625989A (en) * | 2009-09-09 | 2012-08-01 | 弗劳恩霍弗实用研究促进协会 | Transmission concept for an access unit stream |
| CN104469241A (en) * | 2014-11-28 | 2015-03-25 | 中国航空无线电电子研究所 | Device for achieving video frame rate change |
| CN105553636A (en) * | 2015-12-11 | 2016-05-04 | 中国航空工业集团公司西安航空计算技术研究所 | Redundancy mode FC sending channel frame synchronization circuit |
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2007
- 2007-04-09 CN CNB2007100652683A patent/CN100561567C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101667110A (en) * | 2008-09-04 | 2010-03-10 | 三星Techwin株式会社 | Image processing apparatus |
| CN101667110B (en) * | 2008-09-04 | 2013-10-30 | 三星Techwin株式会社 | Image processing apparatus |
| US8717373B2 (en) | 2008-09-04 | 2014-05-06 | Samsung Techwin Co., Ltd. | Image processing apparatus |
| CN102625989A (en) * | 2009-09-09 | 2012-08-01 | 弗劳恩霍弗实用研究促进协会 | Transmission concept for an access unit stream |
| CN102625989B (en) * | 2009-09-09 | 2016-05-11 | 弗劳恩霍弗实用研究促进协会 | For the transmission plan of access unit crossfire |
| CN104469241A (en) * | 2014-11-28 | 2015-03-25 | 中国航空无线电电子研究所 | Device for achieving video frame rate change |
| CN105553636A (en) * | 2015-12-11 | 2016-05-04 | 中国航空工业集团公司西安航空计算技术研究所 | Redundancy mode FC sending channel frame synchronization circuit |
| CN105553636B (en) * | 2015-12-11 | 2018-07-03 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of remaining model F C sendaisles vertical sync circuit and method |
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