Single-Camera Golf Ball Motion Sensing Without Fixed Installation
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Solution Overview
Problem
Existing stereoscopic camera systems for sensing the motion of sports spheres require multiple cameras with high processing power and dedicated lighting, limiting their use to fixed installations and constrained spaces.
Innovation Solution
A single-camera system that acquires images at an arbitrary position, sets a position relationship with a reference surface, detects the sphere, and calculates its motion using feature points on the outline, eliminating the need for dedicated lighting and fixed installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a stereoscopic camera system with multiple cameras is used to sense sphere motion, then measurement precision is improved, but device complexity increases and requires high processing power
Solution Approach 1:
The patent extracts the essential function of motion sensing from the complex stereoscopic camera system and implements it using a single camera with a plane recognition unit. This removes the need for multiple cameras while maintaining the core capability of detecting sphere motion and calculating three-dimensional coordinates through image processing and plane relationship analysis.
Solution Approach 2:
The single camera system is designed to perform multiple functions: capturing images, recognizing plane surfaces, detecting sphere objects, calculating three-dimensional coordinates, and sensing motion. This multi-functional approach replaces the specialized stereoscopic camera system, reducing device complexity while maintaining measurement precision.
2Measurement precision
If a stereoscopic camera system is installed in a fixed position with dedicated lighting, then measurement precision is improved, but ease of operation deteriorates due to installation constraints
Solution Approach 1:
The system dynamically adapts to different installation positions and lighting conditions by automatically recognizing plane surfaces and establishing coordinate relationships. The plane recognition unit can identify reference planes in various orientations and positions, allowing the system to be installed flexibly without requiring fixed positions or dedicated lighting setups.
Solution Approach 2:
The system performs self-calibration by automatically recognizing plane surfaces and establishing three-dimensional coordinate relationships without requiring professional installation or dedicated lighting. The plane recognition unit autonomously identifies reference planes and calculates coordinate transformations, enabling easy deployment in various environments.
3Measurement precision
If multiple cameras are used in a stereoscopic configuration, then measurement precision is improved, but loss of energy increases due to high processing power requirements
Solution Approach 1:
The patent extracts the essential motion sensing function from the energy-intensive multi-camera system and implements it using a single camera with efficient image processing. By removing redundant cameras and processing requirements, the system maintains measurement precision while significantly reducing energy consumption associated with processing multiple camera feeds.
Data Source
AI summary
The present invention is related to a device and method for sensing motion of sphere moving on plane using single-camera, and device and method for sensing motion of golf ball moving on putting mat that a low-cost single-camera is used for sensing a sports sphere moving on a plane as a target object, and the sports sphere can be detected without a separate dedicated lighting and a space in which the sphere moves can be recognized, so it can be used regardless of location with a simple configuration, away from the limitation that the installation position of the camera must be fixed.