| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_294881271413951a95f284b588a68e66 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-63 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-136
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-132
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-503
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-635
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-423
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-196
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H03M7-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-134
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06K9-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N19-102 |
| filingDate |
2004-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_435ad111b7ef9b4dbaaa770d3fb87d0c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0295dcbf9c1c1accb98eb82765fc4cb |
| publicationDate |
2005-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2005229441-A |
| titleOfInvention |
Image encoding apparatus and method, and image decoding apparatus and method |
| abstract |
PROBLEM TO BE SOLVED: To sequentially compress and encode a plurality of frames constituting a moving image using a correlation between frames. In an image encoding device 10, a differentiator 12 subtracts a wavelet transform coefficient D17 of a preceding frame supplied from a memory 17 from a wavelet transform coefficient D11 of a current frame to generate a difference coefficient D12. The switching unit 13 selects the wavelet transform coefficient D11 and the difference coefficient D12 that has the smaller sum of absolute values over the entire frame, and supplies the selected one to the quantization unit 14. The quantization coefficient D14 generated by the quantization unit 14 is encoded at a subsequent stage and is also supplied to the inverse quantization unit 15. The inverse quantization unit 15 performs inverse quantization in consideration of the number D18 of truncated bit planes in the rate control unit 22. The adder 16 adds the wavelet transform coefficient D15 after dequantization and the wavelet transform coefficient D16 of the preceding frame, and updates the contents of the memory 17. [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010516162-A |
| priorityDate |
2004-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |