If we replace the source with some other media source like the video camera, laser radar, etc we can query that source in order to find the required object. The corresponding algorithm for the transformational operator will be:

1. locate the media source in the query
2. check the time-slot
3. get the groups of images for that particular time slot from the media source
4. apply the feature extraction algorithm
5. compare the object with the existing objects in the database
6. check the query for additional parameters like color
7. compare it with the objects 
8. output the result of the query