Each signer has performed once the 450 basic signs and 780 continuous sentences of the corpus. The performances of the first signer, called reference signer, were recorded not once but even three times. Altogether 33,210 utterances (12,150 isolated signs and 21,060 continuous sentences) are available in the database. Each utterance is stored in a separate directory as a sequence of image files. The naming convention for directories and files consists of a consecutive sequence of letters followed by a two or four digit number.
| Directory | Filename | |
|---|---|---|
| Isolated signs | /data/sig#1/per#2/iso#3/ | s#1-p#2-i#3-f#5.jpg |
| Continuous sentences | /data/sig#1/per#2/con#4/ | s#1-p#2-c#4-f#5.jpg |
The following table summarizes the abbreviations used in the naming convention.
| Denotation | Directory | Filename | ||
|---|---|---|---|---|
| Abbreviation | Number (Digits) | Abbreviation | Number (Digits) | |
| signer | sig | #1 (2) | s | #1 (2) |
| performance | per | #2 (2) | p | #2 (2) |
| isolated | iso | #3 (4) | i | #3 (4) |
| continuous | con | #4 (4) | c | #4 (4) |
| frame | - | #5 (4) | f | #5 (4) |
Some examples to illustrate the naming convention:
| Directory/Filename | Explanation |
|---|---|
| /data/sig01/per02/iso0150/s01-p02-i0150-f0064.jpg | 64th frame of the image sequence containing the 150th isolated sign performed the second time by the 1st signer (= reference signer) |
| /data/sig25/per01/con0260/s25-p01-c0260-f0128.jpg | 128th frame of the image sequence containing the 260th continuous sentence performed the first time by the 25th signer |