Ask what one frame cannot show
An image can reveal an object and its apparent state, while a sequence can provide evidence of change, order, and motion. Describe the decision that requires those additional observations. If a task can be solved from a distinctive background or title card, a video collection may not be testing the temporal behavior its brief claims to target.
Choose the minimum useful sequence
Specify whether the task needs neighboring frames, a complete action, or a longer dependency. More runtime can add storage and review work without adding relevant evidence. Conversely, sparse snapshots can omit the transition the model must understand. Use concrete examples to identify the temporal unit before deciding whether to request clips, full sessions, extracted frames, or a combination.
Keep derived frames traceable
If photographs are extracted from video, retain source-recording identifiers and timestamps. Adjacent frames are related observations rather than automatically independent images. Apply an appropriate grouping policy during evaluation and document the extraction method. Labels created for a complete sequence may not be valid for every frame, so decide which annotations can be transferred and which require separate review.
Compare proposals by evidence
Review whether a proposed source supplies the required temporal context, not just the requested number of files or hours. Consider annotations, source relationships, and actual downstream import effort. Fiund can discuss image, video, or mixed sourcing against the task. Availability, sample fit, source documentation, and commercial scope remain project-specific and should be established before treating a modality choice as a procurement solution.
Review checklist
- State the decision requiring temporal evidence.
- Choose the minimum useful sequence length.
- Keep extracted frames linked to their sources.
- Review proposals by task evidence and documentation.