| 摘要 |
This disclosure provides devices, computer programs, and methods for estimating reliability metrics. In one aspect, a mobile device includes sensors for measuring acceleration data, a processor, and a memory storing instructions that implement a plurality of modules. The modules include a motion direction estimation module for estimating a motion direction based on the acceleration data. The modules also include a reliability metric computation module for estimating reliability metrics. For example, the reliability metric computation module can estimate a first reliability metric based on a process used to estimate the motion direction, a second reliability metric based on a measure of stability of the device, and a third reliability metric based on a measure of consistency in the estimated motion direction over a period. The reliability metric computation module calculates a composite reliability metric that indicates a measure of certainty in the estimated motion direction based on the estimated reliability metrics. |
