Virtual Camera Tracking Data Recording for Post-Production Accuracy

Solution Overview

Problem

Conventional virtual production technologies face challenges in recording and playback of second tracking data, which is essential for post-production corrections, due to the difficulty in capturing and identifying specific second tracking data, leading to time and cost issues in recreating the original camera conditions.

Innovation Solution

A system that includes a communicator to receive first tracking data and a controller to store and playback second tracking data, allowing for the recording and identification of virtual camera movements and lens states, enabling accurate playback of virtual production content in augmented, virtual, or extended reality formats.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If only first tracking data is recorded during capturing, then device complexity is reduced, but post-production correction capability is lost

Engineering Contradiction:

Improverecording system complexityVSAvoidpost-production correction capability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The system performs preliminary action by recording second tracking data during the capturing process itself, rather than attempting to reconstruct it later. The controller records both first tracking data from the actual camera and second tracking data from the virtual camera in advance, ensuring that all necessary data for post-production corrections is already available when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates a copy of the virtual camera's tracking data (second tracking data) alongside the original first tracking data. This copy includes the virtual camera's position, orientation, and lens state information, enabling accurate reproduction of the virtual production environment without requiring the original capturing equipment to be physically recreated.

Inventive Principle:

Principle #26Copying

2Quantity of substance

If second tracking data is not recorded, then storage requirements are reduced, but time and cost for post-production increase

Engineering Contradiction:

Improvestored data quantityVSAvoidpost-production time

Core Design Contradiction:

Quantity of substanceVSLoss of time

Solution Approach 1:

The system performs preliminary action by recording second tracking data during the capturing process itself, rather than attempting to reconstruct it later. The controller records both first tracking data from the actual camera and second tracking data from the virtual camera in advance, ensuring that all necessary data for post-production corrections is already available when needed.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates a copy of the virtual camera's tracking data (second tracking data) alongside the original first tracking data. This copy includes the virtual camera's position, orientation, and lens state information, enabling accurate reproduction of the virtual production environment without requiring the original capturing equipment to be physically recreated.

Inventive Principle:

Principle #26Copying

3Adaptability or versatility

If virtual camera reference position is changed during capturing, then adaptability is improved, but difficulty in identifying specific second tracking data increases

Engineering Contradiction:

Improvevirtual camera position flexibilityVSAvoidsecond tracking data identification

Core Design Contradiction:

Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system implements feedback by recording and storing the virtual camera's reference position changes and corresponding second tracking data. When post-production corrections are needed, the system can identify which second tracking data corresponds to which virtual camera state by referencing the recorded position information, enabling accurate data retrieval despite position changes during capturing.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20250024000A1Data recording method, device and system for virtual production

Publication Date: 2025.01.16 VIVE STUDIOS CO LTD

AI summary

A data recording method, device and system for virtual production are provided. The device according to one embodiment of the present invention comprises: a communication unit for receiving first tracking data comprising tracking information about the movement and lens state of a camera capturing a first image, which is a real image; and a control unit using the first tracking data so as to control that recording data, which includes second tracking data comprising tracking information about the movement and lens state of a virtual camera in a virtual space, is stored, wherein the control unit uses the recording data so as to control that a second image, which comprises content of the virtual space linked on the basis of the second tracking data, is played back.