Which of the following is a stage in data fusion? a. Decision level b. Feature level c. Pixel level d. All of the above

d. All of the above

Explanation:

Data fusion involves combining data from multiple sources to create a more comprehensive understanding of a subject or situation. This process can occur at several stages:

a. Decision level: This is the highest level of data fusion. At this stage, the system makes a final decision based on the combined data from all sources.

b. Feature level: This is the intermediate level of data fusion. At this stage, features extracted from the data are combined. This can lead to a reduction in the amount of data that needs to be processed and can improve the performance of the system.

c. Pixel level: This is the lowest level of data fusion. At this stage, raw data from each of the sources is combined. This can lead to a more detailed and complete picture of the subject or situation.