Doorbell Camera Visitor Detection with Dual-Region Image Analysis
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Solution Overview
Problem
Existing doorbell systems often experience visitor detection errors and fail to provide adequate information to users in advance, leading to potential security issues.
Innovation Solution
A doorbell system equipped with a camera, image processor, and alert generator that uses different image analysis algorithms to detect and identify objects in specific regions, transmitting alert sounds or information to user terminals, thereby reducing false alerts and providing detailed visitor information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single image analysis algorithm is used to detect visitors, then the device complexity is low, but visitor detection accuracy deteriorates leading to detection errors
Solution Approach 1:
The patent divides the image analysis process into two distinct algorithms: a first algorithm for detecting the presence of a visitor in a first region, and a second algorithm for identifying the visitor in a second region closer to the doorbell. This segmentation allows each algorithm to be optimized for its specific task, improving overall detection accuracy while managing complexity through functional division.
Solution Approach 2:
The patent applies different image analysis algorithms to different spatial regions of the monitoring area. The first algorithm operates on a broader first region for initial detection, while the second algorithm operates on a closer second region for detailed identification. This local differentiation optimizes detection accuracy for each region's specific characteristics.
2Loss of time
If visitor information is not provided in advance, then the device complexity is low, but security response time deteriorates
Solution Approach 1:
The patent transmits alert sound information corresponding to the identified visitor to the user terminal before the visitor actually presses the doorbell button. This preliminary provision of visitor information allows the user to prepare for the upcoming interaction, reducing security response time while the system handles the information transmission automatically.
3Loss of information
If alert sounds are not differentiated by visitor type, then the device complexity is low, but information quality deteriorates
Solution Approach 1:
The patent transmits different alert sound information corresponding to different identified visitors to the user terminal. By differentiating alert sounds based on visitor identity, the system provides higher quality visitor information while the automated selection process manages the complexity of having multiple alert options.
Data Source
AI summary
Provided are a doorbell system and a method of operating the same. The doorbell system includes a doorbell which includes: a camera configured to obtain at least one of an image of a first object in a first region and an image of a second object in a second region closer to the doorbell than the first region; an image processor configured to detect the first object from the image of the first object, and identify the second object from the image of the second object; and an alert generator configured to select and transmit to a user terminal an alert sound or alert sound information corresponding to the identified second object.