Method and apparatus for distributed analysis of images
View Patent ↗A method and apparatus for intelligent distributed analyses of images including capturing the images and analyzing the captured images, where feature information is extracted from the captured images. The extracted feature information is used in determining whether a predefined condition is met, and the extracted feature information is transmitted for further analysis when the predefined condition is met. The extracted feature information is stored and is used to generate statistical information related to the extracted feature information. Further, additional feature information is provided from other databases to implement further analysis including an event detection or recognition. Accordingly, distributed intelligent analyses of images is provided for analyzing captured images to efficiently and effectively implement event detection or recognition.
1. A method for extracting information from images comprising the steps of:
capturing a plurality of images;
extracting by a computer device feature information from the captured images;
determining whether the extracted feature information meets a first predefined condition; and
transmitting the extracted feature information for further analysis, if the extracted feature information meets the first predefined condition;
wherein the extracted feature information is analyzed by another device, and
capturing the plurality of images includes capturing low resolution images; and
combining the low resolution images into a high resolution image; and further includes
extracting feature information from the high resolution image, and
determining whether the extracted feature information meets the first predefined condition;
wherein the other device includes the following steps:
analyzing the high resolution image, and
providing an event detection upon determining that the high resolution image includes information that meets a second predefined condition; and
the second predefined condition is only examined, if the first predefined condition is met.
2. The method of claim 1 , wherein the other device is a remote terminal.
3. The method of claim 1 , wherein the other device is a local terminal.
4. The method of claim 1 , wherein the other device analyses the extracted feature information, based on a stored feature information.
5. The method of claim 1 , wherein the second predefined condition is different from the first predefined condition.
6. The method of claim 1 , wherein
capturing the plurality of images includes receiving images from multiple cameras that observe a scene from different points of view.
7. The method of claim 6 , wherein
the feature information is extracted from the images received from the multiple cameras, and
the feature information is transmitted for further analysis, if the feature information meets the first predefined condition.
8. A distributed event detection apparatus comprising:
multiple sensors for capturing image data, each sensor extracting a first feature information for further analysis;
a centralized processor for receiving the extracted first feature information from the multiple sensors; and
the centralized processor for analyzing the received extracted first feature information, and providing a first event detection based on the analysis;
wherein a sensor of the multiple sensors analyses the captured image data and extracts the first feature information, only if a predefined condition is met; and
the centralized processor receives the first feature information including low resolution image data, and combines the low resolution image data into a high resolution image data; and further includes
a remote processor for receiving the high resolution image data from the centralized processor, and
the remote processor for further analyzing the high resolution image data, and providing a second event detection, if the high resolution image data meets another predefined condition.
9. The apparatus of claim 8 , wherein the second event detection is different from the first event detection.
10. The apparatus of claim 8 , wherein the remote processor and the centralized processor are connected by way of a communications link.
11. A plurality of detection apparatus comprising:
a first level detector for receiving a first set of data and determining whether the first set of received data includes a first event;
a second level detector for receiving a second set of data from the first level detector and determining whether the second set of received data includes a second event,
an alarm provided as an output, when the second set of received data includes the second event, and
a third level detector for receiving a third set of data from the second level detector,
wherein the third set of data is received from the second level detector, only if the second set of received data includes the second event.
12. The apparatus of claim 11 , wherein the second set of data is transmitted to the second level detector, only if the first set of received data includes the first event.
13. The apparatus of claim 11 , wherein
the third level detector provides another alarm, when the third set of data includes a third event.
14. The apparatus of claim 13 , wherein the first, second and third events are different from each other.