US 11,539,934 B2 · Image display method and image surveillance system

Abstract

An image display method used by an image surveillance system is provided. The image surveillance system includes a plurality of cameras. The camera is configured to shoot a part of a physical environment to form a real-time image. The image display method has the following steps: First, a three-dimensional space model corresponding to the physical environment is established. Next, based on the height, the shooting angle and the focal length of the camera, a corresponding viewing frustum is established for each of the camera. According to the viewing frustum, a shooting coverage area of the camera in the physical environment is obtained. Next, a virtual coverage area corresponding to the shooting coverage area is searched out in the three-dimensional space model. Next, the real-time image is imported to a three-dimensional space model and projected to the virtual coverage area.

Claims10

Dependent claims

An image display method used to an image surveillance system, the image surveillance system comprising a plurality of cameras, the camera shooting a part of a physical environment to form a real-time image, the image display method comprising:

(a) establishing a three-dimensional spatial model, the three-dimensional spatial model corresponding to the physical environment;
(b) establishing a corresponding viewing frustum for each camera according to a height, a shooting angle, and a focal length of the camera, obtaining a shooting coverage area of the camera in the physical environment according to the viewing frustum;
(c) searching out a virtual coverage area in the three-dimensional space model and the virtual coverage area is corresponding to the shooting coverage area;
and
(d) importing the real-time image to the three-dimensional space model and projecting the real-time image to the virtual coverage area.

2 more elements

An image surveillance system comprising:

a plurality of cameras, the camera shooting a part of a physical environment to form a real-time image;
a storage device, storing a three-dimensional spatial model, the three-dimensional spatial model corresponding to the physical environment;
an image processing device, connected to the camera, the image processing device comprising:
an adjusting component, establishing a corresponding viewing frustum for each camera according to a height, a shooting angle, and a focal length of the camera, obtaining a shooting coverage area of the camera in the physical environment according to the viewing frustum;
a searching component, searching out a virtual coverage area in the three-dimensional space model, and the virtual coverage area is corresponding to the shooting coverage area;
and
an image import component, importing the real-time image to the three-dimensional space model and projecting the real-time image to the virtual coverage area.

4 more elements

Dependencies are inferred from the claim text.

Image display method and image surveillance system

Life of this patent

Image display method and image surveillance system

Life of this patent

Abstract

Claims10