Video Reconstruction Capture

New feature in LCC Studio v2.0.0. Supports uploading video to automatically reconstruct a 3DGS model.

Applicable devices: Any phone or camera capable of recording video

Supported Video Specifications

Item	Supported Range
File format	mp4, mov, webm
Video duration	Up to about 16 minutes (1000 seconds)
Video resolution	720p – 4K (720px–3840px per side)
Video codec	H.264, H.265, AV1, VP9

Formats such as avi and mkv are not supported.

Sampling Frame Rate Selection

After uploading the video, LCC Studio automatically extracts frames. Selectable frame rates:

Frame Rate	Applicable Scenario	Notes
1 frame per second	Long videos (>250 s)	Fewer frames, faster processing
2 frames per second	Medium videos (≤250 s)	Balances quality and speed
4 frames per second	Short videos (≤250 s)	Richest detail

Videos over 500 seconds can only choose 1fps; videos over 250 seconds cannot choose 4fps.

Core Principles of Video Shooting

The essence of video reconstruction is extracting multi-view images from video frames, so all general capture principles apply. Additional requirements:

✅ Recommended	Notes
Orbit shooting	Move slowly around the target, covering multiple angles
Slow movement	0.5–1 m/s, avoid motion blur
Stay continuous	A single continuous video works best
Even lighting	Avoid drastic lighting changes
Lock focal length	Focal length must be fixed throughout, do not zoom
Lock exposure	Manual exposure mode, avoid auto-exposure jumps

❌ Avoid	Notes
Fixed viewpoint	A purely static frame cannot be reconstructed
High-speed movement	>2 m/s causes blur or failure
Multi-clip stitching	Edited/stitched video can only reconstruct the continuous portion
Zooming	Focal length changes cause reconstruction failure
Pure rotation	Rotating the camera in place produces no parallax

Correct video reconstruction shooting technique (orbit movement)

Video Shooting Strategies for Different Scenes

Object Video Shooting

Low orbit once (20–30 s)
Mid orbit once (20–30 s)
High orbit once (20–30 s)
Total duration: 60–120 s

Object video shooting — three-layer orbit

People Video Shooting

Tell the subject to stay still
Quickly orbit 2–3 loops (different heights)
Total duration: 60–90 s (limited time the subject can stay still)

Camera Setting Recommendations

Parameter	Recommended Value	Notes
Resolution	1080p or 4K	4K has better detail but larger files
Frame rate	30fps	Sufficient to extract clear frames
Shutter speed	≥1/500s	Reduces motion blur
ISO	Adjust as needed	Prefer high ISO over a slow shutter
Focal length	24–35mm equivalent	Wide angle provides more context
Focus	Manual focus or locked	Avoid focus hunting
Stabilization	Enable OIS/EIS	Reduces image shake

Phone shooting tips: Lock exposure (long-press the screen), turn off HDR mode, use the main camera (avoid excessive ultra-wide distortion). Both landscape and portrait orientation are fine.

Phone shooting settings (lock exposure/focal length)

Video Reconstruction vs Device Scanning Comparison

Dimension	Video Reconstruction	Device Scanning (K2/L2 Pro/P1)
Device requirement	Any phone/camera	Dedicated scanning device
Applicable scenes	Objects, people, small scenes	Medium to large indoor/outdoor scenes
Accuracy	Medium	High (LiDAR-assisted)
Operation difficulty	Low	Medium
Maximum range	Small scenes (limited by 16 min)	Large scenes
Geographic coordinates	Not supported	Supported (RTK; not on the P series)