| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_08e5126e16ad1c7aae67ba760e92e943 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N2209-046 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-132
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-176
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N23-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06T3-4084
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F17-147
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-59
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H04N19-90 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F17-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N5-262
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N1-393
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T5-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N7-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N7-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06T3-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04N7-26 |
| filingDate |
1996-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7ce1898a1c39238e98f8c1cbe21e72f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc3bd3b553271036260efd52a0c983e2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f919dfb1b77376f909699abb7e9bb4c1 |
| publicationDate |
1996-11-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2215133-A1 |
| titleOfInvention |
A system and method for sample rate conversion of an image using discrete cosine transforms |
| abstract |
An image processing system for sample rate conversion of an image signal representing an image of pixels from a first sample rate to a second sample rate includes: an image acquisition device for acquiring the image signal from an image signal source at the first sample rate; a first memory for buffering the input signal; a second memory for storing predetermined discrete cosine transform coefficients; a dot product multiplier for multiplying the image signal retrieved from the first memory times the predetermined coefficients to produce an output signal at the second sampling rate; a third memory for buffering the output signal; control sequencer logic for controlling operation of the image processing system; and an output device for providing a resampled image at the second sampling rate from the output signal. The image processing system facilitates sample rate conversion by segmenting the image into segments of image data points wherein a separate and different offset is determined for each segment. A discrete cosine transform is performed on each segment of image data points to generate corresponding DCT coefficients. Thereafter, resampled image data points are generated by taking a modified IDCT of the DCT coefficients using a modified IDCT basis matrix which is dependent upon a sampling rate conversion ratio and/or an offset. |
| priorityDate |
1995-05-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |