A medical system (100, 300, 500) comprising: - a memory storing machine executable instructions, at least one set of predetermined coordinates, and a position identifying algorithm, wherein the position identifying algorithm is configured for outputting a set of current coordinates for each of the at least one set of predetermined coordinates in response to receiving a current image descriptive of an object (306, 310), wherein the at least one set of predetermined coordinates are anatomical locations, and wherein the object is a subject; - a camera system; - a user interface (108, 308, 416, 418) comprising a display; - a medical imaging system, wherein the medical imaging system is any one of the following: an x-ray system, a digital fluoroscope, a magnetic resonance imaging system, a diagnostic ultrasound system, a computed tomography system, a positron emission tomography system, and a single photon emission tomography system, wherein each of the at least one set of predetermined coordinates defines a three-dimensional position and orientation of a body part of the subject relative to an imaging zone of the medical imaging system; and - a computational system configured for controlling the medical system, wherein execution of the machine executable instructions causes the computational system to repeatedly receive the current image from the camera system, wherein execution of the machine executable instructions further causes the computational system to perform the following for the current image: - receive the set of current coordinates for each of the at least one set of predetermined coordinates in response to inputting the current image into the position identifying algorithm; - calculate a positional difference between the at least one set of predetermined coordinates and its set of current coordinates; - calculate a one-dimensional value for each of the at least one set of predetermined coordinates by inputting the positional difference for each of the at least one set of predetermined coordinates into an objective function; and - provide a one-dimensional position indicator (136, 314, 600, 602, 608, 800, 900, 1002) for each of and controlled by each one-dimensional value in real time using the user interface (108, 308, 416, 418). - a memory storing machine executable instructions, at least one set of predetermined coordinates, and a position identifying algorithm, wherein the position identifying algorithm is configured for outputting a set of current coordinates for each of the at least one set of predetermined coordinates in response to receiving a current image descriptive of an object (306, 310), wherein the at least one set of predetermined coordinates are anatomical locations, and wherein the object is a subject; - a camera system; - a user interface (108, 308, 416, 418) comprising a display; - a medical imaging system, wherein the medical imaging system is any one of the following: an x-ray system, a digital fluoroscope, a magnetic resonance imaging system, a diagnostic ultrasound system, a computed tomography system, a positron emission tomography system, and a single photon emission tomography system, wherein each of the at least one set of predetermined coordinates defines a three-dimensional position and orientation of a body part of the subject relative to an imaging zone of the medical imaging system; and - a computational system configured for controlling the medical system, wherein execution of the machine executable instructions causes the computational system to repeatedly receive the current image from the camera system, wherein execution of the machine executable instructions further causes the computational system to perform the following for the current image: - receive the set of current coordinates for each of the at least one set of predetermined coordinates in response to inputting the current image into the position identifying algorithm; - calculate a positional difference between the at least one set of predetermined coordinates and its set of current coordinates; - calculate a one-dimensional value for each of the at least one set of predetermined coordinates by inputting the positional difference for each of the at least one set of predetermined coordinates into an objective function; and - provide a one-dimensional position indicator (136, 314, 600, 602, 608, 800, 900, 1002) for each of and controlled by each one-dimensional value in real time using the user interface (108, 308, 416, 418).