CN100399832C - Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof - Google Patents
Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof Download PDFInfo
- Publication number
- CN100399832C CN100399832C CNB2005100027698A CN200510002769A CN100399832C CN 100399832 C CN100399832 C CN 100399832C CN B2005100027698 A CNB2005100027698 A CN B2005100027698A CN 200510002769 A CN200510002769 A CN 200510002769A CN 100399832 C CN100399832 C CN 100399832C
- Authority
- CN
- China
- Prior art keywords
- look
- parameter
- inverse quantization
- quantization
- pixel information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
Abstract
The present invention relates to a video decoding apparatus combined with inverse quantization and inverse tortuous scan and a method of the video decoding apparatus, which discloses a receiving unit comprising a counter. The receiving unit is used for receiving at least one pixel datum and accumulating a count value to be used as an index parameter of the pixel datum; then, a quantization parameter corresponding to the pixel datum and a storage address are picked by a processing unit according to the index parameter to enable the quantization parameter to inversely quantize the pixel datum to generate an inverse quantization value, and the inverse quantization value is stored in the storage address.
Description
Technical field
The present invention is relevant for a kind of visual information decoding apparatus and method thereof in conjunction with inverse quantization and the scanning of contrary flexure folding, it is particularly to the indexing parameter of usage count value as pixel information, the quantization parameter of acquisition respective pixel data and storage address are in the hope of the inverse quantization value and the function of learning the storage address that the inverse quantization value is corresponding of respective pixel data.
Background technology
Because the progress of science and technology and the arriving of digital Age, add that expectation sees through the effect of digital recording device, static plane photography is combined with sound, allow the loyal continuous demand that presents of image energy promote, make the widely general gradually common people of digital recording device accept, and the digital video decoding technique is also under this demand, become present development digital recording device indispensable link.
See also Figure 1A, it is the calcspar of existing video decoding technology, as shown in the figure, at first, when video signal compression signal is input into one of a decoding system 1 ' and can changes length decoding unit 10 ', this can change the data blocks that length decoding unit 10 ' can be converted to this video signal compression signal a plurality of regular lengths, and so data blocks includes 8 * 8 pixels (pixel) data; Then, connect an inverse quantization (Inverse Quantization) unit 12 ' and can change length decoding unit 10 ' in this, because each pixel information has different data characteristics in the data blocks, therefore, this inverse quantization unit 12 ' is according to the data characteristic of each pixel information, read the quantization parameter that each pixel data is adopted in this data blocks when coding, the quantization parameter schematic diagram of each pixel information in the corresponding data blocks shown in Figure 1B, read this quantization parameter in the zigzag scanning mode shown in Fig. 1 C afterwards, thus, calculate the inverse quantization value of each pixel information in corresponding this data blocks, to compensate the part of this block in coding time institute's quantizing distortion, promptly to be positioned at data blocks address (3,3) pixel data is an example, inverse quantization unit 12 ' is learnt address (3 among Figure 1B in the zigzag scanning mode, 3) quantization parameter is 2, this inverse quantization unit 12 ' can be with this address (3 of correspondence, 3) pixel information is multiplied by 22, to compensate this pixel information in the part that quantizes time institute's distortion.
Afterwards, connect contrary flexure folding scanning (Inverse Zig-zag Scan) unit 14 ' in this inverse quantization unit 12 ', after this contrary flexure folding scanning element 14 ' receives the data blocks of this inverse quantization unit 12 ' inverse quantization, in the zigzag scanning mode with each pixel information of learning this data blocks corresponding to the storage address shown in this Fig. 1 D, to store address according to this each pixel information of data blocks is stored in the tortuous buffer; At last, change the data blocks of this tortuous buffer by anti-discrete cosine conversion (Inverse Discrete CosineTransform) unit 16 ' anti-discrete cosine again after, the output video pictures shows video pictures for a display unit.
Because this decoding system 1 ' is to transmit the pixel information that data blocks is comprised in the line mode shown in Fig. 1 E, yet, inverse quantization unit 12 ' is the inverse quantization value and storage address of trying to achieve this data blocks in the zigzag scanning mode with contrary flexure folding scanning element 14 ', therefore, must be with data blocks as the unit that carries out, so when inverse quantization unit 12 ' is carried out inverse quantization and is stored pixel information in tortuous buffer with contrary flexure folding scanning element 14 ' desire, must expend time in and wait for that this can change all pixel informations that length decoding unit 10 ' output data blocks comprises, so that postpone the action of inverse quantization and the scanning of contrary flexure folding, and can't promote the technology of decompression and better video signal quality is provided.Moreover, also must additionally provide internal memory to store this and can change the pixel information that length decoding unit 10 ' has been exported, cause the increase of decoding cost.
Therefore, how a kind of visual information decoding apparatus and method thereof in conjunction with inverse quantization and the scanning of contrary flexure folding proposed at the problems referred to above, not only improving tradition must expend time in and wait for the shortcoming that can change all pixel informations that length decoding unit output data blocks comprises, reach the effect of the pixel information that does not need additionally to provide memory to store and exported again, be not to use for a long time the person eagerly to look forward to and the inventor person of bearing in mind always always, and the inventor is based on engaging in the correlative study that digital video is handled for many years, poor its people's professional knowledge, finally work out a kind of visual information decoding apparatus and method thereof, can solve the above problems in conjunction with inverse quantization and the scanning of contrary flexure folding.
Summary of the invention
Main purpose of the present invention is to provide a kind of video decoding method in conjunction with inverse quantization and the scanning of contrary flexure folding, and the key step of this method includes the reception pixel information, and the accumulated counts value is with the indexing parameter as this pixel information; Then, according to the quantization parameter and storage address of this indexing parameter to capture corresponding this pixel data; Afterwards, use quantization parameter to try to achieve the inverse quantization value of pixel information, and store this inverse quantization value in this stores the address.
Secondary objective of the present invention is to provide a kind of visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding, and it includes a receiving element, and in order to the reception pixel information, and the accumulated counts value is with the indexing parameter as this pixel information; And a processing unit, according to this indexing parameter with the quantization parameter that captures corresponding this pixel data with store the address, in the hope of the inverse quantization value of this pixel information and the storage address of learning this inverse quantization value.
Reach advantage in order to achieve the above object, a kind of visual information decoding apparatus and method thereof of the present invention in conjunction with inverse quantization and the scanning of contrary flexure folding, by setting a count value is an indexing parameter of a pixel data, afterwards, according to indexing parameter with acquisition to a quantization parameter and a storage address that should pixel data, when reaching the inverse quantization value of trying to achieve pixel information and learning the storage address of inverse quantization value, do not need with the data blocks is the purpose of executable unit, and can reduce the output time of all pixel informations of waiting for data blocks, thus, to promote the technology that decompresses and preferable video signal quality be provided, moreover, also not needing additionally provides memory to store the pixel information of having exported, so can effectively save the expenditure of decoding cost.
Description of drawings
Figure 1A is the calcspar of existing decoding video signal;
Figure 1B is the schematic diagram of the quantization parameter of existing corresponding data blocks;
Fig. 1 C is the schematic diagram of existing zigzag scanning block;
Fig. 1 D is the schematic diagram of the storage address of the tortuous buffer of existing correspondence;
Fig. 1 E is the schematic diagram of existing line scan-data block;
Fig. 2 is the calcspar of a preferred embodiment of the present invention;
Fig. 3 is the schematic diagram of look-up table of the present invention;
Fig. 4 is the flow chart of a preferred embodiment of the present invention;
Fig. 5 is the schematic diagram of index data table of the present invention;
Fig. 6 is the calcspar of another preferred embodiment of the present invention;
Fig. 7 is the flow chart of another preferred embodiment of the present invention;
Fig. 8 A is the schematic diagram of first look-up table of the present invention; And
Fig. 8 B is the schematic diagram of second look-up table of the present invention.
The figure number explanation
1 ' decoding system 10 ' can change the length decoding module
12 ' inverse quantization unit, 14 ' contrary flexure folding scanning element
16 ' anti-discrete cosine converting unit, 1 decoding system
10 can change length decoding unit 12 inverse quantizations and contrary flexure folding scan module
120 look-up tables, 1200 addresses
1202 quantization parameters 1204 store the address
122 receiving elements, 1220 counters
124 processing units, 1240 decoders
1,242 first decoders, 1,244 second decoders
125 shift units, 126 first look-up tables
1260 addresses, 1262 quantization parameters
128 second look-up tables, 1280 addresses
1282 store address 14 anti-discrete cosine converting units
Embodiment
Because prior art is when the decoding video data, must be with the executable unit of data blocks as inverse quantization and the scanning of contrary flexure folding, so that when receiving a pixel data that can change length decoding unit output data blocks, can't carry out this pixel information of inverse quantization in real time and store this pixel information in the action of tortuous buffer, and cause postponing to decipher and the problems such as output time that expend all pixel informations in the wait data blocks, for addressing the above problem, the invention provides a kind of visual information decoding apparatus and method thereof in conjunction with inverse quantization and the scanning of contrary flexure folding.
In the embodiment shown in Fig. 2, the present invention is with existing inverse quantization unit and contrary flexure folding scanning element, be combined into inverse quantization and contrary flexure folding scan module, make to change length decoding unit transmission pixel data when this inverse quantization and contrary flexure folding scan module, can try to achieve an inverse quantization value and a storage address of learning this inverse quantization value of corresponding this pixel data.
Please consult Fig. 2 and Fig. 3 simultaneously, as shown in the figure, one decoding system 1 includes one can change length decoding unit 10, an inverse quantization and a contrary flexure folding scan module 12 and an anti-discrete cosine converting unit 14, wherein this inverse quantization and contrary flexure folding scan module 12 includes a look-up table (Look-Up-Table) 120, and it stores a plurality of quantization parameters 1202 and a plurality of storages address 1204; One receiving element 122, it comprises a counter 1220, and when this can change length decoding unit 10 a pixel information in the data blocks is provided, the count value that adds up was with the indexing parameter as this pixel information; An and processing unit 124, it comprises a decoder 1240, in order to decoding and this indexing parameter a plurality of addresses 1200 of look-up table 120 therewith relatively, the quantization parameter of corresponding this pixel information of acquisition and storage address, and via a shift unit 125 according to this quantization parameter with this pixel data of translation, wherein, this shift unit 125 replaces the effect of a multiplier, thus, inverse quantization value in the hope of corresponding this pixel information, and store this inverse quantization value in a tortuous buffer of corresponding this storage address, afterwards, this stores the inverse quantization value in the address via an anti-discrete cosine converting unit 14 conversions again, to export a video pictures, shows this video pictures for a display unit.
It is exactly a random access memory in essence for an above-mentioned look-up table 120, when the present invention operates in practice, this look-up table 120 stores the quantization parameter and storage address of corresponding data blocks, for ease of explanation, the look-up table 120 of this embodiment is that the first row pixel information with the block that stores data is an example, that is, this look-up table 120 stores the quantization parameter and storage address of the first row pixel information of corresponding this data blocks in advance in regular turn, when decoding system 1 transmits the pixel information of this data blocks in the line mode, when receiving element 122 receives first pixel information of this first row pixel data, this counter accumulated counts value, making count value is 1 and with the indexing parameter of this count value as this first pixel information, afterwards, this handles these a plurality of addresses 1200 of unit 124 comparison indexing parameters and look-up table 120, be 1 quantization parameter and store the address with the address of obtaining corresponding look-up table, thus, try to achieve the inverse quantization value of first pixel information and the storage address of learning the inverse quantization value with the use amount parameter.
The present invention is with the storage address of the inverse quantization value of the first row pixel information of trying to achieve this data blocks in regular turn and the inverse quantization value of learning the corresponding first row pixel information as an illustration, to describe one embodiment of the invention in detail, see also Fig. 4, flow chart for a preferred embodiment of the present invention, in this embodiment, this can change length decoding unit 10 is the pixel informations that transmit data blocks in the line mode, wherein, this first row pixel information is to comprise first pixel information, second pixel information to the, eight pixel informations in regular turn.At first, shown in step S10, provide and initialization one count value, afterwards, execution in step S11 receives can change first pixel information that the length decoding unit provides, and this count value that adds up is 1 with the indexing parameter as this first pixel information, at this moment, indexing parameter is 1, then, shown in step S12, a plurality of addresses according to this indexing parameter comparison look-up table shown in Figure 3, when this indexing parameter equals the address of this look-up table, capture the quantization parameter and storage address of corresponding this first pixel information in this look-up table, the quantization parameter of promptly learning this first pixel information is DC, storing the address is 1, afterwards, carrying out step S13 uses this quantization parameter to try to achieve an inverse quantization value of corresponding first pixel information, and storing this inverse quantization value, to store address in corresponding this be in 1 the tortuous buffer, last, uses an anti-discrete cosine converting unit via step S14, obtain corresponding this and store the inverse quantization value of address, after anti-discrete cosine is changed this inverse quantization value, export the video pictures of corresponding first pixel information, to finish the decoding action of first pixel information.
Afterwards, in the time can changing the length decoding unit and transmit second pixel information, repeated execution of steps S11 of the present invention is to step S14, the indexing parameter of learning this second pixel data is 2, the indexing parameter of decoding and comparison second pixel data is a plurality of addresses of look-up table therewith, with the quantization parameter that captures corresponding this second pixel information is 0 to be 2 with storing the address, by that analogy, the quantization parameter of the 3rd pixel information is 0, storing the address is 6, the quantization parameter of the 4th pixel information is 1, the storage address is that the quantization parameter of 7 to the 8th pixel informations is 1, storing the address is 29, thus, carry out inverse quantization pixel information and the inverse quantization value that stores the respective pixel data in real time in the action of tortuous buffer to reach, with not needing with the data blocks is the purpose of performance element, in addition, also can improve and postpone decoding and expend the problems such as output time of waiting for all pixel informations in the data blocks, therefore, can save the output time of all pixel informations of waiting for data blocks, promote the technology that decompresses and better video signal quality is provided, moreover, also not needing additionally provides memory to store the pixel information of having exported, so can effectively save the expenditure of decoding cost.
In addition, but this look-up table 120 also MSDS principle in maintenance data storehouse is reached identical purpose, promptly replace look-up table 120 with index data table shown in Figure 5, a plurality of indexing parameters of at first setting up tables of data are after the indexing parameter field of Fig. 5, to be positioned at the first row quantization parameter of Figure 1B and first row of Fig. 1 C and store the address, be stored in the quantization parameter field and storage address field of Fig. 5 in regular turn in the line mode, put to finish building of this look-up table, the indexing parameter of these processing unit 122 comparison pixels data is a plurality of indexing parameters of index data table therewith, when the indexing parameter of pixel data equals the indexing parameter of this index data table, with quantization parameter and the storage address that captures corresponding this pixel data in this index data table.
See also Fig. 6, it is an another embodiment of the present invention, for effectively classifying and management quantization parameter and the data that stores the address, more include one first look-up table 126 among this embodiment, in order to store a plurality of quantization parameters 1262, an and second look-up table 128, in order to store a plurality of storages address 1282, in addition, processing unit 124 more includes one first decoder 1242, in order to decoding and indexing parameter a plurality of addresses 1260 of first look-up table 126 therewith of this pixel data relatively, behind the quantization parameter 1262 that captures corresponding this pixel information in this first look-up table 126, try to achieve the inverse quantization value of this pixel information, and one second decoder 1244 in order to decoding and indexing parameter a plurality of addresses 1280 of second look-up table 128 therewith of this pixel data relatively, behind the storage address 1282 that captures corresponding this pixel information in this second look-up table 128, store this inverse quantization value in this storage address 1282 of tortuous buffer.
In addition, see also Fig. 7, it is in the flow process of another preferred embodiment of the present invention, this another embodiment also with the quantization parameter of the first row pixel information of trying to achieve data blocks in regular turn and the storage address of learning this first row pixel information as an illustration, wherein, this first row pixel information comprises first pixel information in regular turn, second pixel information to the, eight pixel informations, at first, execution in step S20 provides and initialization one count value, afterwards, execution in step S21 receives can change first pixel information that the length decoding unit provides, and this count value that adds up is 1 with the indexing parameter as this first pixel information, at this moment, indexing parameter is 1, then, shown in step S22, a plurality of addresses according to first look-up table shown in this indexing parameter comparison chart 8A, when indexing parameter equals the address of first look-up table, capture the quantization parameter of corresponding first pixel information in first look-up table, after the quantization parameter of promptly learning this first pixel information is DC, carrying out step S23 uses this quantization parameter to try to achieve an inverse quantization value that should first pixel information, then, execution is according to shown in the step S24, a plurality of addresses according to the second look-up table shown in this indexing parameter comparison chart 8B, when indexing parameter equals the address of second look-up table, the storage address of corresponding first pixel information in the acquisition second look-up table, after the storage address of promptly learning this first pixel information is 1, carrying out step S25 stores the inverse quantization value to store address in corresponding this is in 1 the tortuous buffer, at last, use an anti-discrete cosine converting unit via step S26, obtain corresponding this and store the inverse quantization value of address, after anti-discrete cosine is changed this inverse quantization value, the video pictures of corresponding this first pixel information of output, the rest may be inferred, in the hope of the inverse quantization value and the storage address of corresponding second pixel information to the, eight pixel informations.
In sum, the present invention is relevant for a kind of visual information decoding apparatus and method thereof in conjunction with inverse quantization and the scanning of contrary flexure folding, it is by the receiving element that comprises a counter, and in order to receiving at least one pixel information, and the count value that adds up is with the indexing parameter as this pixel information; Then, one processing unit, according to this indexing parameter, capture in the look-up table a quantization parameter and a storage address that should pixel information,, produce an inverse quantization value to use this this pixel information of quantization parameter inverse quantization, and store this inverse quantization value in this storage address, thus, improve having now when carrying out inverse quantization and contrary flexure folding scanning motion, needing with the data blocks is the shortcoming of performance element.
Claims (10)
1. video decoding method in conjunction with the scanning of inverse quantization and contrary flexure folding is characterized in that this method comprises the following step:
Receive at least one pixel information, and the count value that adds up is with the indexing parameter as this pixel information;
According to this indexing parameter, acquisition is to a quantization parameter and a storage address that should pixel information; And
Use this quantization parameter to try to achieve, and store this inverse quantization value in this storage address an inverse quantization value that should pixel information; And
Obtain this inverse quantization value that should the storage place location, change this inverse quantization value with anti-discrete cosine.
2. the video decoding method in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 1 more comprises:
Store this quantization parameter and this storage address in a look-up table;
Decoding and a plurality of addresses of this indexing parameter and this look-up table relatively; And
When this indexing parameter equals the address of this look-up table, capture this quantization parameter and this storage address.
3. the video decoding method in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 1 is characterized in that, more comprises:
Store this quantization parameter and this storage address respectively in one first look-up table and a second look-up table;
Decoding and a plurality of addresses of this indexing parameter and this first look-up table relatively are when this indexing parameter equals the address of this first look-up table, to capture this quantization parameter; And
Decoding and a plurality of addresses of this indexing parameter and this second look-up table relatively when this indexing parameter equals the address of this second look-up table, capture this storage address.
4. visual information decoding apparatus in conjunction with the scanning of inverse quantization and contrary flexure folding is characterized in that this device includes:
One receiving element, in order to receiving at least one pixel information, and the count value that adds up is with the indexing parameter as this pixel information; And
One processing unit, according to this indexing parameter, acquisition stores the address to a quantization parameter and that should indexing parameter, use this quantization parameter to try to achieve to an inverse quantization value that should pixel information, and store this inverse quantization value in this storage address, and obtain this inverse quantization value that should the storage place location, change this inverse quantization value with anti-discrete cosine.
5. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 4 is characterized in that, more comprises a shift unit, according to this quantization parameter, and this pixel information of translation.
6. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 4 is characterized in that this receiving element more includes a counter, when receiving this pixel information, in order to this count value that adds up.
7. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 4 is characterized in that, more comprises a look-up table in order to store this quantization parameter and this storage address.
8. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 7, it is characterized in that, this processing unit more includes a decoder, its decoding and a plurality of addresses of this indexing parameter and this look-up table relatively, when indexing parameter equals the address of look-up table, to capture in this look-up table to this quantization parameter and this storage address that should indexing parameter.
9. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 4 is characterized in that, more includes:
One first look-up table is in order to store this quantization parameter; And
One second look-up table is in order to store this storage address.
10. the visual information decoding apparatus in conjunction with inverse quantization and the scanning of contrary flexure folding as claimed in claim 9 is characterized in that this processing unit more includes:
One first decoder, its decoding and a plurality of addresses of this indexing parameter and this first look-up table relatively when this indexing parameter equals the address of this first look-up table, capture in this first look-up table this quantization parameter that should indexing parameter; And
One second decoder, its decoding and a plurality of addresses of this indexing parameter and this second look-up table relatively when this indexing parameter equals the address of this second look-up table, capture in this second look-up table this storage address that should indexing parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100027698A CN100399832C (en) | 2005-01-26 | 2005-01-26 | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100027698A CN100399832C (en) | 2005-01-26 | 2005-01-26 | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1633182A CN1633182A (en) | 2005-06-29 |
| CN100399832C true CN100399832C (en) | 2008-07-02 |
Family
ID=34852982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100027698A Active CN100399832C (en) | 2005-01-26 | 2005-01-26 | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100399832C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315023A (en) * | 1998-08-13 | 2001-09-26 | 赤道技术公司 | Circuit and method for performing bidimentional transform during processing of an image |
| EP1292152A1 (en) * | 2000-06-02 | 2003-03-12 | Matsushita Electric Industrial Co., Ltd. | Image processing apparatus, and image processing method |
| CN1589026A (en) * | 2004-07-30 | 2005-03-02 | 联合信源数字音视频技术（北京）有限公司 | Method and device for concurrent processing run-length coding, inverse scanning inverse quantization |
| WO2009072865A2 (en) * | 2007-12-05 | 2009-06-11 | Borneo Tsang Furnishing Sdn Bhd | Extensible table with improved extension mechanism |
-
2005
- 2005-01-26 CN CNB2005100027698A patent/CN100399832C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315023A (en) * | 1998-08-13 | 2001-09-26 | 赤道技术公司 | Circuit and method for performing bidimentional transform during processing of an image |
| EP1292152A1 (en) * | 2000-06-02 | 2003-03-12 | Matsushita Electric Industrial Co., Ltd. | Image processing apparatus, and image processing method |
| CN1589026A (en) * | 2004-07-30 | 2005-03-02 | 联合信源数字音视频技术（北京）有限公司 | Method and device for concurrent processing run-length coding, inverse scanning inverse quantization |
| WO2009072865A2 (en) * | 2007-12-05 | 2009-06-11 | Borneo Tsang Furnishing Sdn Bhd | Extensible table with improved extension mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1633182A (en) | 2005-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101569170B (en) | Encoding device, encoding method, decoding device, and decoding method | |
| US7702163B2 (en) | Image signal processing apparatus, camera system and image signal processing method | |
| US8031958B2 (en) | Image signal processing apparatus, camera system and image signal processing method | |
| AU2013359365B2 (en) | Lossless image compression using differential transfer | |
| CN101248430B (en) | Transpose buffering for video processing | |
| CN1791220B (en) | Video decoder and associated methods of operation | |
| CN101106719A (en) | Wavelet transformation device, wavelet inverse transformation device and method, program, and recording medium | |
| CN105120293A (en) | Image cooperative decoding method and apparatus based on CPU and GPU | |
| CN101252694A (en) | Address mapping system and frame storage compression of video frequency decoding based on blocks | |
| US20060044165A1 (en) | Variable length decoding device | |
| CN115086668A (en) | Video compression method, system, equipment and computer readable storage medium | |
| US7936375B2 (en) | Image processor, imaging device, and image processing system use with image memory | |
| US7929777B2 (en) | Variable length decoding device, variable length decoding method and image capturing system | |
| CN101415119B (en) | Device and method for compressing image data | |
| CN100399832C (en) | Video signal decoding apparatus with combined counter-quantization and counter-zigzag scanning, and method thereof | |
| CN101951524A (en) | JPEG (Joint Photographic Experts Group) compression method and device of color digital image | |
| US8000545B2 (en) | Method for accessing image data and method for accessing YUV420 image data | |
| US7106225B2 (en) | Coding apparatus and imaging apparatus | |
| CN101443808B (en) | Memory organizational scheme and controller architecture for image and video processing | |
| CN103975583A (en) | Capturing multiple video channels for video analytics and encoding | |
| CN101867808B (en) | Method for accessing image data and relevant device thereof | |
| CN102495878B (en) | File and method for storing machine vision detection result | |
| GB2333201A (en) | Video decoder for high picture quality | |
| CN1125376A (en) | Improved apparatus for encoding/decoding a video signal | |
| Ouyang et al. | A dynamic JPEG CODEC with adaptive quantization table for frame storage compression |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |