| 摘要 |
PROBLEM TO BE SOLVED: To improve operability in inputting a sentence with flick input to a software keyboard.SOLUTION: An input character estimation device includes: a time-series input coordinate storage unit 3 for storing input coordinates when a user touches a touch panel display, in a time series; a character model storage unit 4 for defining character models for plural types of operation states for each character allocated to an operation button of a software keyboard, defining a probability density function for each state with two-dimensional coordinates being as a feature quantity, and storing the probability density function defined for each state for each character; a probability computation unit 5 for computing an occurrence probability of each character on the basis of the input coordinates and the character models; a cumulative probability memory unit 6 for storing a cumulative probability value obtained by cumulating probability values from the start of input by the user as a cumulative occurrence probability of each character; and an input candidate character selection unit 7 for selecting a character having the highest cumulative occurrence probability as an input candidate character. |
