Display user interface method and system

1. A system for user interaction, the system comprising:

a display including a screen for displaying images;

at least one hardware processor configured to:

receive input from at least one sensor detecting at least a position of a user's fingertip in front of the display, the fingertip belonging to a finger extended in a direction of the screen;

determine, from the input from the at least one sensor, an aim of the finger, wherein the aim corresponds to an intersection of the screen and a vector extending the finger;

display on the screen, on condition that the fingertip is in a first zone, an indicator at a position corresponding to the aim; and

select an object displayed in an image on the screen, the object located at the position on the screen corresponding to the aim, on condition that the fingertip is in a second zone, the second zone being closer to the screen than the first zone and distant from the screen, wherein, in case the indicator extends over a plurality of selectable objects in the image, the at least one processor is further configured to determine, based on input from the at least one sensor, a direction of movement of the finger parallel to the screen and to select the object corresponding to the direction of the movement.

2. The system of claim 1 , wherein the at least one hardware processor is further configured to perform at least one action intended to keep the user from touching the screen when the fingertip is in a third zone, the third zone being closer to the screen than the second zone.

3. The system of claim 2 , wherein the at least one action is giving an alarm by changing the image displayed on the screen or rendering sound on a speaker.

4. The system of claim 1 , further comprising the at least one sensor and wherein the display, the at least one hardware processor and the at least one sensor are included in a single device.

5. The system of claim 1 , wherein the at least one processor is included in a processing device configured to provide the images to the display.

6. The system of claim 1 , wherein, in case the user extends more than one finger, the at least one hardware processor is configured to determine the aim based on a single finger.

7. The system of claim 1 , wherein the indicator is rendered differently depending on at least one of the distance of the fingertip from the screen, the number of fingers extended by the user, and what can be done to an object underlying the indicator in the image.

8. The system of claim 1 , wherein the system is configured to use, in a fourth zone further from the screen than the first zone, a gesture detection user interface, different from the aiming user interface used in the first and second zones.

9. A method of user interaction, the method comprising, in at least one hardware processor of a device:

receiving input from at least one sensor detecting at least a position of a user's fingertip in front of the display, the fingertip belonging to a finger extended in a direction of a screen;

determining, from the input from the at least one sensor, an aim of the finger, wherein the aim corresponds to an intersection of the screen and a vector extending the finger;

displaying on the screen, on condition that the fingertip is in a first zone, at a position corresponding to the aim, an indicator; and

selecting an object displayed in an image on the screen, the object located at the position on the screen corresponding to the aim, on condition that the fingertip is in a second zone, the second zone being closer to the screen than the first zone and distant from the screen, wherein, in case the indicator extends over a plurality of selectable objects in the image, based on input from the at least one sensor, a direction of movement of the finger parallel to the screen is determined and the object corresponding to the direction of the movement is selected.

10. The method of claim 9 , further comprising performing at least one action intended to keep the user from touching the screen when the fingertip is in a third zone, the third zone being closer to the screen than the second zone.

11. A non-transitory computer-readable storage medium storing instructions that, when executed, cause at least one hardware processor to perform a method of claim 9 .