Camera Device Hybrid PTZ Control via Segmented Areas
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Solution Overview
Problem
Existing camera control systems face limitations in efficiently performing digital and mechanical pan, tilt, and zoom (PTZ) operations, making it difficult to manage these actions in a mutually efficient manner.
Innovation Solution
A camera device and system that includes first and second information acquisition portions to control specified areas within a whole image, a control portion for mechanical movement, and an image processing portion to extract images from these areas, allowing for efficient digital and mechanical PTZ operations, with additional features for control right management and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If digital pan, tilt and zoom operations are performed to extract a desired area from the whole image, then the range of image acquisition is improved, but the efficiency of operation deteriorates due to difficulty in performing digital and mechanical operations in a mutually efficient manner
Solution Approach 1:
The patent segments the control of PTZ operations into two distinct modes: mechanical PTZ control for coarse positioning and digital PTZ control for fine extraction. The control portion manages mechanical movement based on first information, while the image processing portion performs digital extraction based on second information. This segmentation allows each control mode to operate independently and efficiently in its optimal range.
Solution Approach 2:
The control portion acts as an intermediary that coordinates between mechanical PTZ operations and digital PTZ operations. It receives control information from multiple devices, determines which device has control rights, and manages the interaction between mechanical movement commands and digital extraction commands to ensure they work together efficiently rather than conflict.
2Ease of operation
If mechanical pan, tilt and zoom controls are performed on the camera terminal device side, then the imaging direction control is improved, but the range of image acquisition deteriorates due to limitations on the range that can be captured
Solution Approach 1:
The patent merges mechanical PTZ control capabilities with digital PTZ control capabilities into a unified system. The control portion handles mechanical movement to position the camera, while the image processing portion simultaneously or subsequently performs digital extraction to expand the effective range of image acquisition. This combination allows the system to overcome the limitations of mechanical control alone.
Solution Approach 2:
The patent replaces purely mechanical PTZ operations with a hybrid system that incorporates digital PTZ operations. Instead of relying solely on mechanical movement to change imaging direction and range, the system uses digital image processing to extract and enlarge specific areas, effectively substituting mechanical limitations with digital capabilities.
3Adaptability or versatility
If control information is input from multiple devices for PTZ operations, then the versatility of control is improved, but the device complexity deteriorates due to need for control right management
Solution Approach 1:
The control portion implements a self-service control right management system that automatically determines which device has control rights based on predefined rules. When control information is received from multiple devices, the system autonomously evaluates the control requests, assigns control rights to the appropriate device, and manages the coordination without requiring external intervention or complex manual configuration.
Data Source
AI summary
A camera device includes a first information acquisition portion that acquires first information used to control a first area that is specified within a whole image captured by a camera portion, a second information acquisition portion that acquires second information used to control a second area that is specified within the whole image, a control portion that controls mechanical movement of the camera portion based on the first information input from a device having a control right of the first area, among the first information that can be input from a plurality of devices, and an image processing portion that acquires an image of the first area from the whole image captured by the camera portion, and extracts an image of the second area from within the first area based on the second information input from a device having a control right of the second area, among the second information that can be input from a plurality of devices.