# Side-view sit to stand: follow the support points

An original seated adult and chair input for briefing one rise, with checks for seat clearance, foot contact and a stable ending.

These original SVG/PNG teaching inputs were authored for a method exercise. No video model was run and no generated result is included. PNG files are raster counterparts of the editable SVG sources.

## Input responsibilities

Upload only the clean first frame; diagram is for review.

Use the current controls at /generator/image-to-video; check actual accepted inputs and settings before submitting.

## Goal

Describe one slow rise from a chair in a fixed side view. The visible support sequence matters more than an exact joint angle; this is a visual motion exercise, not a medical, ergonomic or biomechanical assessment.

## Preparation

- Keep the whole chair seat, both shoes and the adult’s head in the image. The supplied illustration leaves clear space above the head for the standing pose.
- Place both soles on the floor in front of the seat. Do not use an input with crossed legs or hidden feet for this first support-transfer task.
- Choose one rise with hands staying clear of the chair. If hand-assisted standing is required, make that a separate version with visible armrests.
- Use the diagram to mark seat contact, the forward lean and the upright pause. It is an inspection aid; only the clean scene PNG belongs in the first-frame upload.

## Copyable brief

```text
Begin from the uploaded side-view scene. The adult is seated on the wooden chair with both shoes resting on the floor. In one slow continuous action, the torso leans forward slightly, weight shifts over the feet, the hips leave the seat, and the knees and hips extend until the adult stands upright beside the same chair. Both feet keep their original floor contacts. Arms remain relaxed without pushing on invisible supports. The chair and camera remain stationary. End standing comfortably with the seat visible behind the adult; do not sit down again.
```

## Procedure

1. **Check the starting contacts** — Locate the seat under the hips and the two soles on the floor. If any contact is hidden, adjust the source crop before adding a more detailed motion sentence.

2. **Write the sequence in order** — Put the forward lean before seat clearance and extension. Avoid a request to jump upright, which removes the gradual support transfer the exercise is intended to inspect.

3. **Pause when the hips lift** — Inspect the first visible gap above the seat. Check that the chair stays intact and the body does not pass through its edge; follow the shoes during this transition.

4. **Hold the upright result** — Compare the final planted feet and chair to the starting frame, then play the rise at normal speed. Record whether the visible action reads as one rise rather than a cut or a floating lift.

## Observation record

Use checks.csv to record pass/fail/not-observable and the earliest affected time. Do not pre-fill a pass: there is no generated clip in this package.

- Both shoe contacts are visible before the rise.
- A small forward torso shift occurs before the hips clear the seat.
- The hips leave the seat without passing through its front edge.
- The chair legs and seat stay in their original location.
- Feet do not slide backward, merge or disappear while the body rises.
- Hands do not grip an invented armrest or invisible handle.
- The adult reaches an upright pause without jumping, cutting or sitting again.

## Revise one variable

**The adult floats straight upward**: Change only the action sentence to emphasize the forward weight shift before the hips leave the seat; retain the fixed view for comparison.

**Shoes slide under the chair**: Reduce only the forward reach of the torso and restate the original foot contacts. Recheck the lift interval before replacing the input.

**The chair bends with the person**: Make only the chair’s fixed structure explicit. If its seat is obscured in your replacement image, use a clearer side view rather than multiplying anatomical instructions.

## Ending

End with one stable standing pose and an unchanged empty seat. Keep a note of the seat-release frame and any foot slip; do not use the clip to judge a real person’s physical ability.

## Evidence boundary

Historical parent queries: “minimax h3 image to video”, “minimax h3 prompting image to video”. Exact long-tail demand is unmeasured. Source: docs/research/pseo-keyword-gap-2026-10-05/evidence/bing-live-keywords.csv. Existing broad tutorial: /blog/portrait-video-subtle-motion. The portrait owner handles subtle facial and upper-body movement; this full-body side-view exercise adds seat clearance, planted feet and a single standing transition.