Universal Head Camera Tracking with Dynamic Shift Correction
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Solution Overview
Problem
Conventional image pickup apparatuses with automatic tracking functions are limited in capturing images of moving objects due to constant primary control positions for pan, tilt, and height, which restricts the range of tracking and may not meet a photographer's aims, especially when objects move unexpectedly or when advance trace data is not prepared.
Innovation Solution
An image pickup apparatus with a universal head system that includes a camera, lens apparatus, memory for recording trace data, an object recognizing circuit, and a control device to detect shift amounts and adjust pan, tilt, and zoom dynamically, allowing for arbitrary composition and size settings, even without pre-recorded trace data, using color or pattern recognition for object identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If primary control positions (pan, tilt, height) are kept constant during automatic tracking, then tracking stability is improved, but the range of acquirable images is limited and cannot meet arbitrary photographer composition requirements
Solution Approach 1:
The patent makes the primary control positions (pan, tilt, height) dynamic rather than constant. The control positions are updated in real-time based on object detection results, allowing the system to adapt to arbitrary compositions while maintaining tracking stability through continuous feedback adjustment.
Solution Approach 2:
The system uses feedback from object detection circuits to continuously update control positions. The detection results feed back to the control device, which adjusts pan, tilt, and height parameters to maintain the object in the desired composition, resolving the contradiction between stability and flexibility.
2Measurement precision
If advance trace data is prepared for automatic tracking, then tracking accuracy is improved, but the system cannot handle unexpected object movements or compositions not covered by pre-recorded data
Solution Approach 1:
The system performs preliminary action by pre-recording trace data for common scenarios, which provides accurate tracking for expected object movements. This preliminary data serves as a baseline that can be adjusted in real-time.
Solution Approach 2:
Real-time object detection feedback allows the system to deviate from pre-recorded trace data when unexpected movements occur. The detection results enable dynamic adjustment of control positions, combining the benefits of pre-planned accuracy with adaptive responsiveness.
3Manufacturing precision
If the system follows pre-recorded trace data strictly, then tracking precision is improved, but the ability to capture images in arbitrary compositions defined by the photographer is lost
Solution Approach 1:
The control device uses feedback from both trace data and real-time object detection to determine optimal control positions. This feedback mechanism allows the system to follow pre-recorded data for precision while incorporating photographer-defined composition requirements through detected object parameters.
Solution Approach 2:
The system dynamically changes control parameters (pan, tilt, height, zoom) based on detected object characteristics and photographer composition requirements. This parameter adjustment enables the system to maintain tracking precision while adapting to arbitrary composition specifications.
Data Source
AI summary
The present invention provides an image pickup apparatus for automatically tracking an object to pick up an image of the object, and the image apparatus comprises; a lens apparatus including a zoom lens and a focus lens, the lens apparatus picking up an image of the object; a camera device for picking up an image of the object acquired by the lens apparatus; a universal head for driving pan and tilt of the camera device; a memory for recording trace data of the universal head and image information picked up in synchronization with the trace data; an object recognizing circuit for recognizing the object; a shift amount detection unit for detecting a shift amount between the object and the trace data; and a control device for controlling the driving operation of the universal head based on the trace data and the shift amount.