Method for evaluating operating gestures on a touch-sensitive input surface and corresponding device
Operating gestures on a touch-sensitive input surface for controlling a display element are evaluated using characteristic data belonging to an operating gesture from a point in time t 1 to a point in time tend. Control signals are continuously determined from the input positions comprised by the characteristic data of POS(t 1 ) to POS(tend) for controlling the display element on the display unit. Characteristic data belonging to the operating gesture is evaluated and the gesture classified regarding a degree of error by a pre-trained algorithm trained. If the degree of error lies below a predetermined threshold value, then the determined control signals are conveyed to the display unit. If the degree of error in a period of time from t 2 to t 3 with t 1 <t 2 <t 3 ≤tend lies above the predetermined threshold value, conveying of the control signals determined in the period of time from t 2 to t 2 ′≤t 3 is suspended.
1 . A method for evaluating operating gestures on a touch-sensitive input surface to control a display element configured to select an object on a display unit assigned to the touch-sensitive input surface, the method comprising:
determining characteristic data belonging to an operating gesture in a period of time from a point in time t 1 until a point in time t_end, wherein t 1 <t_end;
continuously determining control signals having displacement vectors from input positions in the characteristic data of POS(t 1 ) to POS(t_end) to control the display element on the display unit;
evaluating, in parallel with the continuously determining control signals having the displacement vectors, the characteristic data belonging to the operating gesture and classifying the operating gesture regarding a degree of error using a pre-trained algorithm;
conveying the determined control signals to the display unit when the degree of error lies below a predetermined threshold value; and
suspending the conveying of the control signals, when the degree of error in a period of time from t 2 to t 3 is above the predetermined threshold value, during a period of time from t 2 to t 3 , wherein t 1 <t 2 <t 3 ≤t_end.
2 . The method of claim 1 , wherein the pre-trained algorithm is trained in advance with operating gestures and is a neural network.
3 . The method of claim 1 , wherein the characteristic data for the classifying of the operating gesture additionally comprises a finger contact surface, a finger contact force, or finger movement speed.
4 . The method of claim 1 , wherein the conveying of the control signals in the period of time from t 2 to t 3 is only suspended in a period of time from t 2 to t 2 ′ when a timer expires at t 2 ′, wherein t 2 ′<t 3 .
5 . The method of claim 1 , wherein the conveying of the control signals in the period of time from t 2 to t 3 is only suspended in a period of time from t 2 to t 2 ′ based on the degree of error, wherein t 2 ′<t 3 , and wherein a longer a time period from t 2 to t 2 ′ in which the conveying of the control signals is suspended, a greater a degree of error of the operating gesture, wherein t 2 ′≤t 3 .
6 . The method of claim 1 , wherein, in addition to the degree of error, the pre-trained algorithm classifies a movement direction based on the characteristic data.
7 . The method of claim 6 , wherein when the determined degree of error is above the predetermined degree of error and the movement direction output by the pre-trained algorithm corresponds to the movement direction determined from the input positions POS(t 1 ) to POS(t_end), the period of time for suspending the conveying of the control signals from t 2 to t 2 ′ is reduced.
8 . The method of claim 6 , wherein when the movement direction output by the pre-trained algorithm is unambiguous, the movement direction determined from the input positions POS(t 1 ) to POS(t_end) is overwritten by the movement direction recognized by the pre-trained algorithm.
9 . A device, comprising:
an evaluating device configured to evaluate operating gestures on a touch-sensitive input surface configured to control a display element to select an object on a display unit allocated to the input surface, wherein the evaluating device is configured to
determine characteristic data belonging to an operating gesture in a period of time from a point in time t 1 until a point in time t_end, wherein t 1 <t_end;
continuously determine control signals having displacement vectors from input positions in the characteristic data of POS(t 1 ) to POS(t_end) to control the display element on the display unit;
evaluate, in parallel with the continuously determining control signals having the displacement vectors, the characteristic data belonging to the operating gesture and classifying the operating gesture regarding a degree of error using a pre-trained algorithm;
convey the determined control signals to the display unit when the degree of error lies below a predetermined threshold value; and
suspend the conveying of the control signals, when the degree of error in a period of time from t 2 to t 3 is above the predetermined threshold value, during a period of time from t 2 to t 3 , wherein t 1 <t 2 <t 3 ≤t_end.