Client Device for PTZ Camera Image Latency Reduction
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Solution Overview
Problem
PTZ cameras in monitoring systems face delays in adjusting their field of view to user requests, leading to latency and an unintuitive control experience due to the time required for mechanical adjustments and data reception.
Innovation Solution
A client device with a display, selection, and communication system that quickly adjusts the camera image on the screen by displaying intermediate images, allowing immediate interaction and automatic integration of the actual camera image into the desired visual range without waiting for full data reception, using metadata for precise positioning and scaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the PTZ camera is controlled to adjust the field of view to user requests, then the desired visual range is achieved, but mechanical adjustment time causes latency and delays in displaying the desired camera image
Solution Approach 1:
The system performs preliminary actions by calculating and displaying a second image representation that shows where the camera will point after user input, before the actual mechanical adjustment is complete. This predictive display approach allows the user to see the intended view immediately, reducing perceived latency while the camera physically moves to the new position.
Solution Approach 2:
The system creates a copy or representation of the desired camera view through image processing and display calculations, showing the target visual range before the actual camera reaches that position. This virtual copy allows users to interact with and visualize the desired state immediately, decoupling the user interface response time from the mechanical adjustment time.
2Manufacturing precision
If the system waits for the camera to complete mechanical adjustments and receive full data before displaying the desired image, then image accuracy is ensured, but user interaction experience deteriorates due to delays
Solution Approach 1:
The system performs preliminary calculations of the desired image position, size, and orientation based on user input and camera parameters, displaying this predicted view immediately. This allows the interface to respond instantly to user actions while maintaining accuracy through subsequent updates when actual camera data arrives.
Solution Approach 2:
The display system dynamically updates the image representation from an initial predictive state to a final accurate state as camera data becomes available. The system transitions smoothly between displaying estimated positions and actual captured images, maintaining both responsiveness and accuracy throughout the adjustment process.
3Speed
If the system displays the desired camera image immediately through image processing, then responsiveness is improved, but the actual camera image integration may be delayed or mismatched
Solution Approach 1:
The system uses feedback mechanisms to continuously update the displayed image representation as actual camera data arrives. When the camera completes its mechanical adjustment and transmits the actual image, the system compares it with the predicted display and performs seamless integration, ensuring synchronization between the displayed view and the actual captured image.
Solution Approach 2:
By pre-calculating and displaying the desired image parameters before the camera actually reaches the target position, the system establishes a reference frame that guides the subsequent integration of the actual image. This preliminary action ensures that when the real data arrives, it can be quickly and accurately integrated without disrupting the user experience.
Data Source
AI summary
Embodiments provide to a client device for displaying camera images of a controllable camera. The client device includes a screen and a display device for displaying a first image representation on the screen. The first image representation shows an actual camera image in an actual visual range of the camera. The client device also includes a selection device designed to select a desired visual range of the camera, and has a communications device designed to request and receive a desired camera image in the desired camera visual range. The display device is designed to display, in a second image representation, at least some portion of the actual camera image correctly in terms of position and size in the desired camera visual range and, in an additional image representation, to display the desired camera image correctly in terms of position and size in the desired camera visual range.