A medical viewing system for displaying a sequence of medical images that represents moving and/or positioning a guide-wire in a blood vessel, which guide-wire has a guide-wire tip that is contrasted with respect to the guide wire, this system comprising: - acquisition means that acquires an original sequence of noisy images called live sequence; and - processing means for processing said live sequence of images in real time, the processing means comprising: first means for automatically detecting the guide-wire tip, yielding skeleton information of the guide-wire tip and a field of motion vectors based on said skeleton information; second means for automatically registering the guide-wire tip with respect to a reference based on the field of motion vectors and for enhancing the guide-wire and the vessel walls while blurring the background in the registered images; and comprising: - display means for displaying a live sequence of processed images; wherein the processing means comprises selecting means for selecting a Region Of Interest in the sequence of images comprising the guide-wire tip, and processing the data in said Region Of Interest; and wherein the medical viewing system is having control means for a user to activate, to control the duration or to stop the processing means applied to the sequence of images in connection to a selected instant of the sequence, comprising starting means and stopping means for the user to activate or stop, at said selected instant, the processing means applied to the sequence of images for improving the visibility of the selected Region Of Interest. - acquisition means that acquires an original sequence of noisy images called live sequence; and - processing means for processing said live sequence of images in real time, the processing means comprising: first means for automatically detecting the guide-wire tip, yielding skeleton information of the guide-wire tip and a field of motion vectors based on said skeleton information; second means for automatically registering the guide-wire tip with respect to a reference based on the field of motion vectors and for enhancing the guide-wire and the vessel walls while blurring the background in the registered images; first means for automatically detecting the guide-wire tip, yielding skeleton information of the guide-wire tip and a field of motion vectors based on said skeleton information; second means for automatically registering the guide-wire tip with respect to a reference based on the field of motion vectors and for enhancing the guide-wire and the vessel walls while blurring the background in the registered images; - display means for displaying a live sequence of processed images; wherein the processing means comprises selecting means for selecting a Region Of Interest in the sequence of images comprising the guide-wire tip, and processing the data in said Region Of Interest; and wherein the medical viewing system is having control means for a user to activate, to control the duration or to stop the processing means applied to the sequence of images in connection to a selected instant of the sequence, comprising starting means and stopping means for the user to activate or stop, at said selected instant, the processing means applied to the sequence of images for improving the visibility of the selected Region Of Interest.