System for detecting persons in an area of interest

System for detecting persons in an area of interest, comprising:

• At least one camera, arranged for generating a stream of images of the area of interest;
• Processing means, for processing the generated stream of images, configured for:
• Determining the actual locations of presence of persons in each image of the stream of images, thus generating a stream of actual locations of presence of persons;
• Incorporating the stream of actual locations of persons in a schematic view of the area, thus generating a stream of images comprising a schematic view of the area with actual locations of presence of persons;
• Display means, for displaying the stream of images comprising a schematic view of the area with actual locations of presence of persons wherein setting which area may be entered by a person can be performed manually by an operator, automatically by following machine conditions or positions based on information given by the machine, or their position be determined based on machine conditions or positions derived from camera images.