Radar-Camera Synchronization for Moving Object Analysis

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Solution Overview

Problem

Existing technologies lack an efficient method to analyze the flight characteristics of moving objects, such as baseballs, tennis balls, and golf balls, in real-time, especially in capturing optimal image frames for accurate characterization of their trajectory and type of pitch or swing.

Innovation Solution

A system combining a radar device for determining the speed and flight path of moving objects with a camera that automatically captures images during an optimal photograph timeframe, using microwave reflections to synchronize image capture with the object's position and trajectory.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a camera captures images of a moving object continuously, then the field of view coverage is improved, but the image quality and accuracy of flight characteristic analysis deteriorate due to motion blur and inability to capture optimal frames

Engineering Contradiction:
Improvefield of view coverageVSAvoidimage quality and analysis accuracy
Core Design Contradiction:
Area of stationary objectVSMeasurement precision

Solution Approach 1:

The radar system performs preliminary detection of the moving object's position, speed, and trajectory before the camera captures images. The processor calculates the optimal photograph timeframe based on radar data, ensuring the camera captures the object at the precise moment when it is most suitable for analysis, thereby avoiding motion blur and capturing optimal frames for flight characteristic characterization.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses radar feedback to control camera operation. The radar continuously monitors the moving object and provides real-time position and speed information to the processor, which adjusts the camera's capture timing accordingly. This feedback loop ensures the camera always captures the object at the optimal moment, maintaining high image quality while covering the necessary field of view.

Inventive Principle:
Principle #23Feedback

2Loss of information

If the camera captures multiple images during flight, then the trajectory analysis is improved, but the timing precision and synchronization with object position deteriorate

Engineering Contradiction:
Improvetrajectory informationVSAvoidtiming precision and position synchronization
Core Design Contradiction:
Loss of informationVSMeasurement precision

Solution Approach 1:

The radar system performs preliminary detection and calculation of the optimal photograph timeframe before the camera captures images. The processor uses radar data on object position, speed, and trajectory to determine the precise moment for capture, ensuring high timing precision and synchronization with the object's position at the moment of capture.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces mechanical timing methods with radar-based electromagnetic wave detection to determine capture timing. The radar uses microwave reflections to precisely measure the object's position and speed, providing accurate timing information that synchronizes camera capture with the object's flight characteristics, thereby maintaining high measurement precision while capturing comprehensive trajectory information.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If radar detects speed and trajectory, then the flight characteristic analysis is improved, but the real-time image capture capability deteriorates

Engineering Contradiction:
Improveflight characteristic analysis accuracyVSAvoidreal-time image capture delay
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system merges radar detection capabilities with camera capture functionality into a unified analysis system. The radar device detects the moving object's speed and trajectory, while the camera captures images at the optimal timeframe determined by radar data. The processor integrates both radar and camera data to provide comprehensive real-time flight characteristic analysis, combining the strengths of both systems to achieve both measurement precision and real-time capture capability.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables accurate characterization of moving objects' flight characteristics, including speed, rotation, and trajectory, allowing for precise classification of pitches or swings, improving analysis accuracy and efficiency.

Implementation Method 1

transmitting a microwave towards a moving object and receiving a reflection of the microwave reflecting off of the moving object

Methodology Applied
Scientific EffectRadar: Radar

Implementation Method 2

receiving a reflection of the microwave reflecting off of the moving object

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS9955126B2Systems and methods of analyzing moving objects
Publication Date: 2018.04.24 RAPSODO
  • US9955126B2 patent drawing
  • US9955126B2 patent drawing
  • US9955126B2 patent drawing

AI summary

According to some embodiments, the present disclosure may relate to a method including transmitting a microwave towards a moving object and receiving a reflection of the microwave reflecting off of the moving object. The method may also include determining a speed of the moving object based on the reflection of the microwave and based on the speed of the moving object and a flight path distance of the moving object, determining an optimal photograph timeframe when the moving object is in a field of view of a camera. The method may further include automatically capturing a plurality of images during the optimal photograph timeframe.