Method for video surveillance in a video-surveillance system, the method comprising the steps of: capturing video images by a video camera observing an area of surveillance, the video camera being controlled by software; wherein the capturing the video images comprises making objects in the area of surveillance invisible in captured video images by zooming-in the area of surveillance to an extent such that merely a small part of the area of surveillance is captured by the video camera excluding any individuals, vehicles, and any item; receiving, by a processor, a predetermined signal; based on the received predetermined signal, generating a first control signal by the processor and transmitting the first control signal to the video camera; receiving the first control signal by the video camera; based on the received first control signal, stopping making objects in the area of surveillance invisible in the captured video images by zooming-out the area of surveillance resulting in captured video images in which the objects are visible; further comprising the steps of: starting a timer when the first control signal has been transmitted to the video camera; when the timer elapses, generating a second control signal by the processor; transmitting the second control signal to the video camera; receiving the second control signal by the video camera; and based on the received second control signal, starting making objects in the area of surveillance invisible in the captured video images by zooming-in the area of surveillance to an extent such that merely a small part of the area of surveillance is captured by the video camera excluding any individuals, vehicles, and any item. capturing video images by a video camera observing an area of surveillance, the video camera being controlled by software; wherein the capturing the video images comprises making objects in the area of surveillance invisible in captured video images by zooming-in the area of surveillance to an extent such that merely a small part of the area of surveillance is captured by the video camera excluding any individuals, vehicles, and any item; receiving, by a processor, a predetermined signal; based on the received predetermined signal, generating a first control signal by the processor and transmitting the first control signal to the video camera; receiving the first control signal by the video camera; based on the received first control signal, stopping making objects in the area of surveillance invisible in the captured video images by zooming-out the area of surveillance resulting in captured video images in which the objects are visible; further comprising the steps of: starting a timer when the first control signal has been transmitted to the video camera; when the timer elapses, generating a second control signal by the processor; transmitting the second control signal to the video camera; receiving the second control signal by the video camera; and based on the received second control signal, starting making objects in the area of surveillance invisible in the captured video images by zooming-in the area of surveillance to an extent such that merely a small part of the area of surveillance is captured by the video camera excluding any individuals, vehicles, and any item. starting a timer when the first control signal has been transmitted to the video camera; when the timer elapses, generating a second control signal by the processor; transmitting the second control signal to the video camera; receiving the second control signal by the video camera; and based on the received second control signal, starting making objects in the area of surveillance invisible in the captured video images by zooming-in the area of surveillance to an extent such that merely a small part of the area of surveillance is captured by the video camera excluding any individuals, vehicles, and any item.