Multi-Camera A/V Device Superimposing Low-Resolution Background Footage
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Solution Overview
Problem
Current audio/video (A/V) recording and communication devices often lack the ability to provide pre-event footage, leading to incomplete information for users, and they typically use low-resolution video which hinders identification and understanding of events.
Innovation Solution
Incorporating multiple cameras with overlapping fields of view, where a low-power, low-resolution camera continuously records and a high-power, high-resolution camera is powered on upon motion detection, allowing for the superimposition of low-resolution footage onto high-resolution footage to enhance video quality and provide pre-event context.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a single low-resolution camera is used to conserve power, then energy consumption is reduced, but video quality and event identification capability deteriorate
Solution Approach 1:
The system dynamically switches between low-resolution and high-resolution cameras based on motion detection events. The low-resolution camera operates continuously at low power, while the high-resolution camera is activated only when motion is detected, optimizing the balance between power consumption and video quality.
Solution Approach 2:
The video recording function is segmented into two separate camera systems with different resolution capabilities. One camera captures continuous low-resolution footage for power efficiency, while the other captures high-resolution footage only when needed, dividing the overall function to resolve the contradiction.
2Measurement precision
If a high-resolution camera is used continuously to improve video quality, then event identification capability is improved, but power consumption increases
Solution Approach 1:
The high-resolution camera operates periodically rather than continuously, activating only at specific moments when motion is detected. This periodic operation maintains high video quality when needed while dramatically reducing overall power consumption compared to continuous high-resolution recording.
Solution Approach 2:
The system dynamically adjusts camera operation based on detected events. The high-resolution camera transitions from a dormant state to an active state only when motion is detected, creating a dynamic power management strategy that optimizes video quality against power consumption.
3Quantity of substance
If only motion-triggered recording is used to save storage space, then storage efficiency is improved, but pre-event context is lost
Solution Approach 1:
The low-resolution camera continuously records footage before motion detection events occur, capturing pre-event context in advance. This preliminary recording ensures that when motion is detected, the system already has background footage available, preventing information loss while maintaining storage efficiency.
Solution Approach 2:
The recording system is segmented into continuous low-resolution background recording and event-triggered high-resolution recording. This segmentation allows pre-event context to be captured efficiently at low resolution while preserving storage capacity by using high resolution only when necessary.
4Productivity
If low-resolution video is used to maintain device performance, then processing requirements are reduced, but event understanding and identification capability deteriorates
Solution Approach 1:
The system applies different quality levels to different portions of the video data. Low-resolution footage is used for general context and background information where high detail is not critical, while high-resolution footage is applied locally to motion-detected events where detailed identification is necessary, optimizing both performance and identification capability.
Solution Approach 2:
The video quality dynamically adjusts based on the significance of the captured content. Routine scenes are recorded at low resolution to maintain device performance, while detected events automatically trigger high-resolution capture to preserve event identification capability, creating a dynamic quality adaptation system.
Data Source
AI summary
Audio/video (A/V) recording and communication devices with multiple cameras for superimposing image data in accordance with various embodiments of the present disclosure are provided. In one embodiment, an audio/video (A/V) recording and communication device comprising: a first camera configured to capture image data at a first resolution; a second camera configured to capture image data at a second resolution that is higher than the first resolution; a memory including a rolling buffer; a communication module; and a processing module comprising: a processor; and a camera application that configures the processor to: capture first image data using the first camera; store the first image data in the rolling buffer of the memory; maintain the second camera in a low-power state; power up the second camera in response to motion detection; capture second image data using the second camera; and superimpose the first image data onto the second image data.