Surveillance Camera Layout Using Spatially Oriented Video Tiles
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Solution Overview
Problem
Modern video surveillance systems face challenges in intuitively and meaningfully displaying video streams from a mix of stationary and movable cameras, requiring improved user interface layouts to enhance user awareness of surroundings.
Innovation Solution
A video management system that determines the geographical position of movable and stationary cameras, selects nearby stationary cameras, and arranges their video streams in a user interface window with tiles that reflect relative field of view orientations, creating an immersive environment for the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If video streams from multiple stationary and movable cameras are displayed in a traditional grid layout, then all camera feeds can be shown, but the user cannot intuitively understand the spatial relationships and relative orientations between different camera fields of view
Solution Approach 1:
The patent transforms the traditional two-dimensional grid layout into a three-dimensional spatial representation where tiles are positioned in 3D space relative to each other. The processing unit calculates real-world coordinates and orientations of cameras, then renders tiles with appropriate positioning, scaling, and rotation to reflect their actual spatial relationships. This dimensional transformation preserves spatial information that would be lost in a flat grid layout.
Solution Approach 2:
The patent applies different visual properties to different tiles based on their local characteristics. Each tile's position, size, and rotation are individually adjusted to match its camera's field of view orientation and distance from the reference camera. This local customization of tile properties allows users to intuitively understand the specific spatial relationship of each camera feed without requiring a uniform layout approach.
2Loss of information
If the user interface displays detailed spatial information from multiple cameras, then user awareness of surroundings is enhanced, but the interface complexity and computational requirements increase
Solution Approach 1:
The system performs preliminary calculations of camera positions, orientations, and field of view parameters when cameras are first added or when their configurations change. This pre-computation of spatial relationships allows the interface to efficiently render tiles without requiring complex real-time calculations during user interaction, reducing operational complexity while maintaining detailed spatial information display.
Solution Approach 2:
The patent creates simplified visual copies (tiles) of camera feeds that represent the actual camera fields of view. These tile copies contain the essential spatial information needed for user awareness but use simplified graphical representations rather than full-precision spatial data, reducing processing complexity while preserving the necessary spatial relationships for user understanding.
Data Source
AI summary
A video surveillance system including a movable video camera, a plurality of stationary video cameras, wherein the movable video camera is geographically dynamic while recording or streaming video, and a video management system comprising a processing unit, and a user screen or display comprising a user interface window. The processing unit is configured todetermine a geographical position and a time instant of the movable video camera, and respective geographical positions of the plurality of stationary video cameras,select a subset of stationary video cameras arranged nearby the movable video camera,present a video stream of the movable video camera in a primary tile,present the respective video streams of the subset of stationary video cameras in respective secondary tiles of the user interface window.