Wearable Camera Orientation Correction for Mounting Offset
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Solution Overview
Problem
Existing image processing systems fail to accurately recognize the orientation of a person when the camera mounting position is offset from its initial position.
Innovation Solution
The system acquires an image of a person using an imaging device mounted on the person or their carried article, detects the orientation, calculates the positional offset of the imaging device using a reference position, and corrects the orientation based on this offset.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a camera is mounted on the head or another portion of a person, then the system can acquire image data for orientation recognition, but if the mounting position is offset from the initial position, then the orientation recognition becomes inaccurate
Solution Approach 1:
The patent replaces the mechanical assumption of fixed camera mounting with a computational correction system. Instead of relying on precise physical mounting, the system uses image processing and coordinate transformation to calculate and correct for mounting offsets, substituting mechanical precision requirements with algorithmic compensation.
Solution Approach 2:
The patent introduces dynamic parameter adjustment by calculating mounting position offsets and using these parameters to transform coordinate systems. The system changes the reference frame parameters based on detected offset values, allowing the orientation recognition to adapt to different mounting positions while maintaining accuracy.
2Ease of operation
If the camera mounting position is offset, then the system can still function with the mounted camera, but the orientation of the person cannot be correctly recognized
Solution Approach 1:
The patent implements a feedback mechanism where the system detects the actual mounting position offset and uses this information to correct subsequent orientation measurements. The offset detection and correction process creates a closed-loop system that automatically compensates for installation errors, maintaining reliability despite variations in mounting precision.
Solution Approach 2:
The patent performs preliminary calibration by detecting the mounting offset before normal operation begins. The system captures initial images to calculate the offset parameters, then uses these pre-calculated parameters to correct all subsequent orientation measurements, ensuring reliability from the start of operation.
Data Source
AI summary
An image processing device includes an acquisition unit, a detection unit, a calculation unit and a correction unit. The acquisition unit is configured to acquire an image including a person from an imaging device mounted on at least either one of the person or an article carried by the person. The detection unit is configured to detect an orientation of the person from the image. The calculation unit is configured to calculate a positional offset of the imaging device from the image using a reference position that serves as a reference for calculating the positional offset. The correction unit is configured to correct the orientation using the positional offset.