Pan-Tilt Camera Angle Adjustment with Motion Compensation
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Solution Overview
Problem
Existing imaging systems with remotely controlled pan/tilt cameras face challenges in accurately adjusting the angle of view due to communication delays, leading to deviations when the camera is moved, especially when the camera and object have relative motion during exposure, causing motion blur and difficulty in maintaining the desired angle of view.
Innovation Solution
An imaging system that includes a moving body with a pan/tilt camera, a data transmission unit, a display unit for coordinate designation, and units for calculating and correcting pan/tilt operation parameters based on motion parameters and adjustment periods, allowing for real-time adjustment of the camera's angle of view to compensate for communication delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If pan/tilt operation is controlled by communication in real-time, then responsiveness to user input is improved, but communication delay causes deviation between instructed operation and actual operation
Solution Approach 1:
The system calculates the angle-of-view adjustment period in advance based on predicted communication delay, and uses this pre-calculated time parameter to compensate for the delay effect when adjusting pan/tilt operations, ensuring accurate positioning despite communication latency
Solution Approach 2:
The system incorporates feedback by calculating the actual angle-of-view adjustment period from the difference between instructed operation time and actual operation completion time, then uses this feedback to correct subsequent operations and maintain accuracy
2Adaptability or versatility
If angle of view is adjusted while moving body is being moved, then adaptability to dynamic environments is improved, but motion blur occurs due to relative movement between camera and object
Solution Approach 1:
The system dynamically adjusts the angle of view during movement by calculating motion parameters (velocity, acceleration) from captured data and incorporating these dynamic factors into the pan/tilt operation parameter calculation, enabling accurate angle adjustment that accounts for relative motion between camera and object
Solution Approach 2:
The system performs preliminary calculation of motion parameters and angle-of-view adjustment period before executing the pan/tilt operation, allowing it to pre-compensate for motion effects and maintain image quality during dynamic adjustments
3Ease of operation
If coordinates are designated on display screen, then ease of operation is improved, but coordinate shifting during movement makes accurate angle adjustment difficult
Solution Approach 1:
The system uses feedback by detecting the actual angle-of-view adjustment period and comparing it with the period calculated from designated coordinates, then corrects the coordinate system based on this feedback to eliminate shifting effects and maintain coordinate accuracy during movement
Data Source
AI summary
An embodiment of the invention provides an imaging system (10) in which captured data obtained by an imaging unit (22) of a pan/tilt camera (14) provided in a moving body (12) is transmitted and a captured image is displayed on a display screen (200). The imaging system (10) includes a coordinate designation unit (46) that designates designation coordinates and movement destination coordinates as a command to adjust an angle of view, an angle-of-view adjustment period calculation unit (50) that calculates pan/tilt operation parameters, using the designation coordinates and the movement destination coordinates, a movement state calculation unit (52) that calculates a movement state of the imaging unit from the captured data, and a pan/tilt operation parameter correction unit (54) that corrects the pan/tilt operation parameter on the basis of the movement state of the imaging unit.