Surveillance Image Transmission with Region-Specific Resolution
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Solution Overview
Problem
Current surveillance systems face challenges in transmitting high-resolution live-view moving images over communication networks, resulting in low-quality images being received by client apparatuses due to data limitations.
Innovation Solution
The method involves generating two frame images with different resolutions, extracting and combining the image of a setting region from one frame with the other, and transmitting the combined frame image to ensure effective image transmission with reduced data usage, allowing for clear viewing of regions of interest while minimizing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the host apparatus transmits a live-view moving image with high resolution from a camera through a communication network, then the image quality is improved, but the data transmission amount increases making it almost impossible to transmit
Solution Approach 1:
The patent divides the image transmission into two segments: a low-resolution full-frame image and a high-resolution setting region image. The host apparatus transmits the complete frame at low resolution while separately transmitting only the setting region (area of interest) at high resolution. This segmentation allows the system to maintain overall image coverage while providing enhanced detail where needed, resolving the contradiction between image quality and data transmission amount.
Solution Approach 2:
The patent applies local quality by transmitting different resolution qualities for different regions of the same image. The setting region (area of interest) is transmitted at high resolution while the rest of the frame is transmitted at low resolution. This allows the system to optimize data usage by allocating high transmission quality only where necessary, rather than uniformly across the entire image, thus resolving the contradiction between maintaining image quality and reducing data transmission.
2Quantity of substance
If the host apparatus drastically reduces the resolution of a moving image to reduce data amount, then the data transmission amount is reduced, but the user feels inconvenience due to an unclear moving image in a region of interest
Solution Approach 1:
The patent segments the image transmission to separate the setting region from the rest of the frame. By transmitting the setting region image at high resolution separately from the low-resolution full-frame image, the system ensures that the region of interest maintains high clarity while the overall data transmission amount remains reduced. This directly resolves the contradiction by providing high resolution only where needed.
Solution Approach 2:
The patent implements local quality enhancement by transmitting the setting region at high resolution while keeping the rest of the frame at low resolution. This allows the user to view the complete scene at low data cost while still obtaining clear, detailed views of the area of interest when needed, thus resolving the contradiction between reducing data transmission and maintaining region-of-interest image quality.
3Quantity of substance
If the host apparatus transmits only a low-resolution moving image to reduce data amount, then the data transmission is feasible, but the overall image quality deteriorates
Solution Approach 1:
The patent segments the transmitted image data into two components: a low-resolution full-frame image providing overall scene coverage and a high-resolution setting region image providing detailed view of the area of interest. This segmentation allows the system to maintain feasible data transmission amounts while preserving overall image quality through the combination of both segments, resolving the contradiction between data reduction and quality maintenance.
Solution Approach 2:
The patent merges two image transmissions of different resolutions into a unified output. The client apparatus combines the low-resolution full-frame image with the high-resolution setting region image to produce a composite image that maintains both overall scene context and detailed region quality. This merging resolves the contradiction by allowing low data transmission while preserving overall image quality through intelligent combination of multiple resolution layers.
Data Source
AI summary
A method of transmitting a moving image and surveillance system using the method are provided. The method includes: receiving a frame image having a first resolution from a camera; generating a first frame image having the first resolution and a second frame image having a second resolution with respect to the frame image of a moving image; extracting an image of a setting region from the first frame image having the first resolution that is higher than the second resolution; generating a combined frame image by combining the extracted image of the setting region and the second frame image having the second resolution; and transmitting the combined frame image to a client apparatus.