Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 21 for “"Fitts' law"”.
-
Coordination between hand and trunk movements in a Fitts' Law task
… are coupled in space and time in a bimanual Fitts' task. The present study was designed to examine whether coordination of hand and trunk share some sets of coordinative principles with bimanual coordination. Participants (n = 28) were required to perform a Fitts' task with the dominant hand …
-
Fitts' Law and human control of an electromyographic signal from the biceps brachii muscle group
Six human subjects performed a modified Fitts' test by moving an electromyographic signal between two targets on a computer screen. For five out of six subjects, the results were consistent with Fitts' Law with correlation coefficients ranging between 29% and 72%. The low correlation of the sixth …
-
A virtual training environment for wheelchair mounted robot
… obtained from the model is evaluated by using Fitts' Law. Several works have been written using it as a model of prediction of human performance for Human-Computer Interaction. This work uses structured virtual environments where the variables required for Fitts' Law application are known and …
-
Analysis of Performance Resulting from the Design of Selected Hand-Held Input Control Devices and Visual Displays
… Finally, the study demonstrated that the Fitts' law model could be applied to hand-operated pointing devices for wearable computers. This is important because it allows the future development of pointing devices to be compared with the devices tested in this research using the Fitts' Law …
-
HUMAN FACTORS EVALUATION OF OPERATOR INTERFACES FOR TELEOPERATION OF A DEXTEROUS MANIPULATOR
… operation of a remote dexterous manipulator. A Fitts' Law experiment was designed to determine the effectiveness of the commanded display in reducing the impact of time delay. The experiment was conducted with a six degree of freedom manipulator over a range of time delays, from 0.0 to 6.0 …
-
A controlled experiment to identify and test a representative primitive set of user object-oriented cursor actions
… and the data were also shown to conform to Fitts' Law. A description of the experiment, the data collected, and the analysis of these data are included.
-
Novel text entry and mobile interaction techniques for Arabic language users
… devices and tablets. The approach is based on Fitts' Law to identify a performance measure estimate equation for each of the introduced interactions. Three prototypes were developed to serve as a test environment in validating Fitts equations and estimating the parameters for these …
-
Evaluating Human Performance for Image-Guided Surgical Tasks
… AR application. It was determined that the Fitts’ Law methodology can be applied for evaluation of tasks performed in each surgical scenario, and was sensitive to differentiate performance across a range which spanned experienced and novice users. This methodology is valuable for future …
-
Multi-Scale Cursor: Optimizing Mouse Interaction for Large Personal Workspaces
… larger and faster for long movements. Using Fitts' Law methods, we experimentally compare different implementations to optimize the mouse design for large displays and to test how they scale to large displays. We also compare them to techniques that integrate absolute pointing with head …
-
Alcohol, task difficulty, and incentives in drill press operation
… from a portion of Welford's (1968) version of Fitts' Law. For every level of task difficulty each subject received two levels of incentive: productivity and accuracy which were enforced by monetary rewards. The subject's response was measured by hits and misses. A Hit was defined as placing the …
-
An evaluation of display/control gain in the context of control-display interface optimization
… performance. In addition, the inadequacy of Fitts' Law as it applies to the given interfaces is discussed.
-
Wrist posture during computer mouse usage: the effects of wrist support and surface height
… between targets became longer (as predicted by Fitts' Law).
-
A Virtual Muscle Model of the Arm for EMG-Driven Control of Prostheses
… the speed-accuracy tradeoff as quantified by Fitts' Law and achieves some degree of graded control. These results demonstrate how patient-specific neuromuscular models can replicate characteristics of volitional motor control. The highly intuitive control and restoration of native biomechanics …
-
Exploring the Usability of Non-verbal Vocal Interaction (NVVI) and a Pitch Based Implementation
… technique used in this study does not follow Fitts' Law, is not as performant as the computer mouse, humming is a more performant modality with the NVVI technique than whistling, and that participants experienced a significantly higher task workload using the NVVI technique than the computer …
-
Optimising for holistic VR interaction.
… the necessity for a filter to accommodate Fitts' Law, demonstrating that as interaction distance increases, so does completion time. By exploiting our proprioception ability, the creation of the modular 3D interface was then developed and studied through an iterative, accessible first …
-
Handheld Virtual Reality for Informal STEAM Education: Exploring its Application, User Experience, and User Interface
… alignment with established frameworks such as Fitts' Law.
-
Brain-Machine Interface for Reaching: Accounting for Target Size, Multiple Motor Plans, and Bimanual Coordination
… of the speed-accuracy tradeoff known as Fitts' law. Similarly, I analyzed cortical motor processing during tasks where the motor plan is quickly reprogrammed. In each study, I found that parameters relevant to the reach, such as target size or alternative movement plans, could be …
-
Prediction of user action in moving-target selection tasks
… selection tasks are developed based on Fitts’ Law, and evaluated in an online experiment. Finally, MT models with the same structural form of the aforementioned PD models are evaluated in a 3-D moving-target selection experiment deployed in VR. Aside from intention predictions on …
-
Understanding and Improving Distal Pointing Interaction
… model of distal pointing that is inspired by Fitts' law, but which contains some unique features. The difficulty of a distal pointing task is best described by the angular size of the target and the angular distance that the cursor needs to go across to reach the target from the input device …
Page 1 of 2