Gimbal Depth Camera Subject Tracking
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Solution Overview
Problem
Existing handheld gimbals struggle to maintain tracking of fast-moving subjects, leading to loss of focus during photography.
Innovation Solution
A gimbal device equipped with a depth camera that obtains spatial coordinates to determine direction adjustments, allowing the gimbal to automatically track subjects in real-time, eliminating the need for manual mode switching by using a control unit and actuator to adjust the gimbal's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual mode switching and Bluetooth connection are used for subject tracking, then device complexity is reduced, but tracking reliability deteriorates when subject moves fast
Solution Approach 1:
The patent replaces manual operation (mechanical button pressing) and wireless communication (Bluetooth) with an automated optical recognition system. The photographing device uses its camera to perform two-dimensional image recognition, automatically identify the subject, and trigger tracking without requiring manual mode switching or external device connection, thereby improving tracking reliability while maintaining simple device architecture
Solution Approach 2:
The photographing device performs self-recognition and self-tracking by using its own camera to capture images, process them through image recognition algorithms, and automatically adjust its orientation to follow the identified subject. This self-service mechanism eliminates the need for external control devices or complex manual operations, improving reliability without increasing device complexity
2Measurement precision
If two-dimensional image recognition is used for subject tracking, then device complexity is reduced, but measurement precision deteriorates when subject moves fast
Solution Approach 1:
The patent enhances the recognition system by adding depth information to the traditional two-dimensional image recognition. The photographing device captures not only 2D images but also depth data, creating three-dimensional spatial information about the subject. This dimensional enhancement improves position recognition precision, allowing accurate tracking of fast-moving subjects without requiring additional complex sensors or systems
Data Source
AI summary
A gimbal device for supporting an external photographing device includes a depth camera, a control unit and an actuator. The depth camera is configured to obtain spatial coordinates of a subject being photographed. The control unit is configured to determine a direction adjustment value of the gimbal device according to the spatial coordinates. The actuator is configured to receive the direction adjustment value and to adjust spatial orientation of the gimbal device according to the direction adjustment value, so that the external photographing device is able to track the subject being photographed. The control unit is further configured to obtain initial three-axis data of the gimbal device and three-axis data after the gimbal device is set to determine an angle difference between the initial three-axis data and the set three-axis data, and the actuator is further configured to receive the angle difference.