Describe the viewing relationship
A fixed camera, handheld observer, moving vehicle, and participant-mounted view produce different visual evidence. Specify which viewpoints support your task and whether camera movement is itself relevant. Avoid treating all moving footage as one condition. Give examples showing acceptable subject size, horizon changes, and context so reviewers can judge the intended perspective rather than infer it from a broad category name.
Separate motion sources
The camera can move while the subject remains still, and the subject can move within a stable frame. State which behavior the model should understand and whether both must be represented. Include zooms, pans, abrupt reframing, and stabilization artifacts where relevant. A motion-heavy sample should not automatically be labeled as a difficult action example without checking what actually changes in the scene.
Preserve temporal visibility
Decide how long the important object or person must remain visible and how temporary departures from view are handled. An event may continue off-screen even when its label remains plausible. Write whether those intervals are excluded, flagged, or useful to the task. Annotation policies should distinguish observed behavior from inferred continuation so the collection does not reward unsupported certainty.
Review representative playback
Inspect complete clips at normal speed and around difficult transitions. Check whether stabilization, cropping, or speed changes were applied before delivery and whether annotations still align. Fiund can review proposed footage against the agreed viewpoint brief. Availability, source documentation, sample access, and commercial terms are specific to the project rather than guaranteed by a camera-style description.
Review checklist
- Name acceptable camera-subject relationships.
- Separate subject movement from camera movement.
- Define required visibility and off-screen treatment.
- Document stabilization, crop, and timing changes.