Pan Tilt Camera Preview Image Control System
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Solution Overview
Problem
Existing pan and tilt cameras experience significant time delays and accuracy issues when remotely controlled due to network latency, requiring users to enter multiple commands to adjust the camera's angle, leading to a frustrating and time-consuming user experience.
Innovation Solution
The implementation of a system that allows the camera to periodically scan its environment, capturing a series of frames to create panoramic or spherical preview images, which are displayed on a user interface for control, enabling users to touch the screen to select a viewpoint and automatically switch to live video, reducing the need for sequential commands and improving control accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users remotely control pan and tilt cameras through network commands, then the camera can be adjusted from a distance, but significant time delays occur due to network latency
Solution Approach 1:
The system performs preliminary actions by capturing a series of frames at different pan and tilt angles before the user needs to view them. These frames are pre-processed and stored, so when the user requests a particular viewpoint, the system can quickly retrieve and display the pre-captured image instead of waiting for real-time camera movement and network transmission.
2Measurement precision
If users send multiple sequential commands to adjust camera angle, then the camera can be positioned accurately, but the process becomes time-consuming and frustrating
Solution Approach 1:
The system captures preview frames at multiple pan and tilt angles in advance, creating a library of pre-positioned views. When the user wants to view a specific area, they can directly select from the displayed preview thumbnails corresponding to different angles, and the system immediately switches to that pre-captured view, eliminating the need for multiple sequential adjustment commands.
Solution Approach 2:
The system creates copies of the camera view at different angles by capturing and storing multiple preview frames. These copies are displayed as thumbnails, allowing users to select from pre-rendered viewpoints without requiring the actual camera to physically move to each position in real-time.
3Loss of information
If the camera continuously pans and tilts to show all views, then the user can see the entire range of motion, but the system consumes excessive energy and time
Solution Approach 1:
The system segments the continuous pan and tilt range into discrete angular positions, capturing a preview frame at each segment. This allows the camera to remain stationary at each position long enough to capture a clear image, then quickly move to the next segment. The user can browse through these segmented previews to see the entire range of motion without the camera needing to continuously pan and tilt in real-time.
Solution Approach 2:
Instead of continuous movement, the camera performs periodic pan and tilt motions to capture preview frames at predetermined intervals. The camera moves to a specific angle, captures a frame, holds position briefly, then moves to the next angle. This periodic action pattern reduces energy consumption compared to continuous movement while still providing comprehensive view coverage through the captured preview sequence.
Data Source
AI summary
Movements of a pan and tilt camera may be controlled by generating preview images of the view obtained by the camera in a particular direction. A camera may periodically scan its environment by moving through its range of motion and capturing a series of frames that can be stitched together. The resulting preview image may be a panoramic or spherical representation of the camera's possible viewpoints and may be displayed on a user interface for controlling the camera remotely. A live video from the camera may be displayed, and when a request to move a viewing angle of the camera is displayed, a corresponding portion of the preview image for the new viewing angle is displayed until a live video of the camera for the new viewing angle is available.