A volumetric image display device for providing a user interface using a visual indicator, the device comprising: a recognition unit having a capacity to recognize an input object in a predetermined three-dimensional, 3D, recognition space; a visual indicator location determining unit having a capacity to determine a location of the visual indicator in a predetermined volumetric image display space based on the input object recognized by the recognition unit, wherein the predetermined 3D recognition space and the predetermined volumetric image display space, at least partially, overlap each other; and a display unit having a capacity to display the visual indicator in the predetermined volumetric image display space based on the location of the visual indicator determined by the visual indicator location determining unit, CHARACTERISED IN THAT the visual indicator location determining unit is configured to: estimate a location of a valid input point associated with the input object by extracting a valid input point and a valid joint point associated with a tip segment of a finger by generating an orientation vector from the location of the valid input point and the location of the valid joint point thereby determining an orientation vector of the tip segment of the finger, determine a location apart from the estimated location of the valid input point by a distance corresponding to the correction value, based on an estimation error which occurs when estimating the location of the valid input point, in a direction of the orientation vector to be a location of the visual indicator in the predetermined volumetric image display space, so that the visual indicator is displayed outside the input object. a recognition unit having a capacity to recognize an input object in a predetermined three-dimensional, 3D, recognition space; a visual indicator location determining unit having a capacity to determine a location of the visual indicator in a predetermined volumetric image display space based on the input object recognized by the recognition unit, wherein the predetermined 3D recognition space and the predetermined volumetric image display space, at least partially, overlap each other; and a display unit having a capacity to display the visual indicator in the predetermined volumetric image display space based on the location of the visual indicator determined by the visual indicator location determining unit, CHARACTERISED IN THAT the visual indicator location determining unit is configured to: estimate a location of a valid input point associated with the input object by extracting a valid input point and a valid joint point associated with a tip segment of a finger by generating an orientation vector from the location of the valid input point and the location of the valid joint point thereby determining an orientation vector of the tip segment of the finger, determine a location apart from the estimated location of the valid input point by a distance corresponding to the correction value, based on an estimation error which occurs when estimating the location of the valid input point, in a direction of the orientation vector to be a location of the visual indicator in the predetermined volumetric image display space, so that the visual indicator is displayed outside the input object. estimate a location of a valid input point associated with the input object by extracting a valid input point and a valid joint point associated with a tip segment of a finger by generating an orientation vector from the location of the valid input point and the location of the valid joint point thereby determining an orientation vector of the tip segment of the finger, determine a location apart from the estimated location of the valid input point by a distance corresponding to the correction value, based on an estimation error which occurs when estimating the location of the valid input point, in a direction of the orientation vector to be a location of the visual indicator in the predetermined volumetric image display space, so that the visual indicator is displayed outside the input object.