Table 2. Typical performance of our techniques on “UV on/off” videos.
| sample 8 h videos (from UV experiments) |
number of suspicious jumps |
|||||
|---|---|---|---|---|---|---|
| video number | UV | number of flies detected | auto-fixed | incorrect fix | reported (unfixed) | tracking errors |
| 5 | 1 min on/off | 2 | 26 | 0 | 2 | 0 |
| 6 | 2 min on/off | 2 | 14 | 1 | 1 | 0 |
| 7 | 5 min on/off | 2 | 4 | 0 | 6 | 0 |
Results of tracking using Ctrax with extensions on three “UV on/off” sample videos (8 h each). (We did not run unmodified Ctrax since it was not designed to handle “on”/“off” changes.) “1 min on/off” was 1 min “on,” 1 min “off,” 1 min “on,” etc.