Aircraft detection device, aircraft detection system, aircraft detection method, and computer program

Claims

1. An acquisition means for acquiring captured images taken by a camera that photographs a monitoring area, Extraction means for extracting image regions from the captured image that are associated with each of a plurality of airspaces at different distances from the aforementioned imaging device, A reduction means for generating an image to be analyzed by reducing each image region extracted from the captured image by a reduction degree determined using the distance between the airspace associated with the image region and the imaging device, A detection means for detecting the target aircraft from the image to be analyzed, A generation means for generating an image reflecting the detection result by superimposing a figure representing the position of the detected aircraft onto an image in which the detected aircraft is captured from the image to be analyzed. Output means for outputting an image reflecting the detection result An aircraft detection device equipped with the following features.

2. Assuming that the same size aircraft is captured in each of the image regions associated with multiple airspaces at different distances from the aforementioned imaging device, the degree of reduction for each of these image regions is such that the size of the aircraft captured in each of the analysis images generated by the image reduction is consistent. The aircraft detection device according to claim 1.

3. The system further includes a calculation means for calculating the extraction range of the image region to be extracted by the extraction means in the captured image, using the distance between the airspace related to the image region to be extracted from the captured image and the capturing device, information representing the field of view of the capturing device, and information on the height at which the capturing device is installed. The aircraft detection device according to claim 1.

4. The detection means distinguishes and detects multiple types of aircraft that are targets for detection. The aircraft detection device according to claim 1.

5. The output means performs display control to enlarge the image of the detected aircraft in response to a request to enlarge the image of the aircraft on the display device. The aircraft detection device according to claim 1.

6. When the output means detects an aircraft from the image being analyzed, it outputs information indicating that an aircraft has been detected to a predetermined notification destination other than the display device. The aircraft detection device according to claim 1.

7. It features a detection model generated by learning from images of the aircraft being detected. The detection means performs aircraft detection processing using the same detection model for each of the multiple image regions extracted from the captured image and associated with the corresponding images. The aircraft detection device according to claim 1.

8. A camera that photographs the area being monitored, The captured image taken by the aforementioned camera is used. An aircraft detection device according to any one of claims 1 to 7 and An aircraft detection system equipped with the following features.

9. By computer, The captured image is obtained by the imaging device that photographs the monitoring area. Image regions related to each of several airspaces at different distances from the aforementioned imaging device are extracted from the captured image. Each image region extracted from the captured image is reduced in size by a degree determined using the distance between the airspace associated with that image region and the imaging device, thereby generating an image to be analyzed. The system detects the target aircraft from the image being analyzed. By superimposing a shape representing the position of the detected aircraft onto the image in which the detected aircraft was captured, a detection result-reflecting image is generated. Output an image reflecting the detection results. Methods for detecting flying objects.

10. The process of acquiring images captured by a camera that photographs the monitoring area, A process for extracting image regions from the captured image that are associated with each of several airspaces that are at different distances from the aforementioned imaging device, The process involves generating an image to be analyzed by reducing each image region extracted from the captured image by a reduction degree determined using the distance between the airspace associated with that image region and the imaging device, The process involves detecting the target aircraft from the image being analyzed, The process involves generating an image reflecting the detection results by superimposing a shape representing the position of the detected aircraft onto the image in which the detected aircraft is captured from the image to be analyzed. Process to output an image reflecting the detection results A computer program that causes a computer to execute a command.