3D Lighting Position Detection via Sequential Camera Scanning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for determining the three-dimensional position of individually controllable lighting devices are limited, as they can only detect devices from a single viewpoint, neglecting depth and resulting in two-dimensional projections, which are inadequate for complex scenographies.
Innovation Solution
A method that involves acquiring multiple two-dimensional models from different viewpoints using a single camera, generating a three-dimensional model, and activating lighting devices based on predetermined lighting states to guide subsequent acquisitions, ensuring all devices are detected even in complex setups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple simultaneous two-dimensional scans are performed from different viewpoints using multiple cameras, then three-dimensional position determination is improved, but device complexity and positioning time increase significantly
Solution Approach 1:
The patent segments the three-dimensional detection process into multiple sequential two-dimensional scanning phases, each performed from a different viewpoint. Instead of requiring all cameras to simultaneously capture all lighting devices, the system divides the detection task across time and viewpoints, with each camera performing focused scans of specific regions or device groups.
Solution Approach 2:
The patent applies preliminary action by first performing two-dimensional scans from initial viewpoints to identify visible lighting devices, then using this information to plan and execute subsequent scans from optimized viewpoints. This sequential approach allows the system to progressively build three-dimensional position data without requiring all cameras to be positioned and operational simultaneously.
2Measurement precision
If multiple simultaneous two-dimensional scans are performed from different viewpoints, then three-dimensional position determination is improved, but positioning time and computational effort increase
Solution Approach 1:
The patent implements dynamics by making the scanning process adaptive and responsive to real-time detection results. The system dynamically adjusts the scanning plan based on which lighting devices have been detected and which remain undetected, optimizing the sequence and viewpoints of subsequent scans to minimize total detection time while ensuring complete three-dimensional position determination.
Solution Approach 2:
The patent employs feedback mechanisms where the results of each two-dimensional scan inform the planning of subsequent scans. The system uses detected device positions and visibility information to determine optimal next viewpoints and scanning priorities, creating a closed-loop process that reduces overall positioning time by avoiding redundant scans and focusing computational resources on undetected devices.
3Measurement precision
If all lighting devices are required to be recognized by at least three different cameras, then accurate three-dimensional spatial position is achieved, but the number of cameras or images required increases significantly
Solution Approach 1:
The patent applies partial action by recognizing that not all lighting devices require detection by exactly three cameras if their three-dimensional position can be sufficiently determined by fewer views combined with geometric constraints. The system performs partial three-dimensional reconstruction for devices detected in multiple views, using the known geometry of the scanning viewpoints to calculate positions even when fewer than three direct observations are available, thereby reducing the total number of images needed.
Data Source
AI summary
A method is provided for determining the three-dimensional position of a plurality of individually controllable lighting devices, including: A) arrangement of the lighting devices in an environment; B) determination of positions of at least part of the lighting devices with respect to a single viewpoint, through the acquisition, by a camera, of a sequence of images of the environment in which the lighting devices is arranged and processing said sequence of images to obtain a two-dimensional model of the positions of at least part of said lighting devices; C) moving the camera to obtain at least one further two-dimensional model of the lighting devices according to at least one different viewpoint; D) processing the two-dimensional models to create a three-dimensional model. Activation of the lighting devices according to a determined lighting state based on said three-dimensional model is envisaged, the camera being moved based on said determined lighting state.