Dynamic object-based assessment and training of expert visual search and scanning skills for operating motor vehicles

• US 20110123961A1
• Filed: 11/25/2009
• Published: 05/26/2011
• Est. Priority Date: 11/25/2009
• Status: Active Grant

• Current Assignee: Transanalytics Health & Safety Services, LLC
• Original Assignee: Loren J. Staplin
• Inventors: Staplin, Loren J.
• Granted Patent: US 8,597,027 B2
• Time in Patent Office: Days
• US Class Current: 434/64
• CPC Class Codes: G09B 19/167 Control of land vehicles
• CPC Class Codes: G09B 9/052 characterised by provision for recording or measuring trainee's performance devices for psychotechnics, e.g. for vehicle drivers A61B5/16, A61B5/18

Abstract

The present invention is a method and system to permit assessment and measurement of a combination of visual and cognitive processes necessary for safe driving-object detection, by recognition of particular objects as actual or potential safety hazards or traffic hazards, through the continuous switching of visual attention between and among objects while virtually driving, according to an object'"'"'s instantaneous priority as a safety threats or traffic hazard, that together are termed expert search and scanning skills. The present invention will reference the driver'"'"'s performance against that of acknowledged experts in this skill; and then provide precise feedback about the type, location, and timing of search and scanning performance errors, plus remedial strategies to correct such errors.

Claims

1. A method for permitting the measurement of a combination of visual and cognitive processes necessary for safe driving-object detection, recognition of particular objects as actual or potential safety threats or traffic hazards, and the continuous switching of visual attention between objects while driving according to their instantaneous priority as safety threats or traffic hazards, using a computing device including a high speed graphics card, an internal hard drive with high speed access, a monitor or display unit, and a pointing device, by a user comprising the steps of:

initializing the computing device to play the dynamic driving video to measure a user'"'"'s skill in visually searching and scanning the roadway environment;

playing the dynamic driving video on the user'"'"'s command to rapidly direct and re-direct the user'"'"'s attention to objects in or near the user'"'"'s virtual driving path according to the objects'"'"' priority as safety threats or traffic hazards;

moving an icon across the display under the user'"'"'s command, said icon being superimposed on the dynamic driving video, to indicate how the user directs and redirects the attention to objects in or near the user'"'"'s virtual driving path according to the user'"'"'s perception of the objects'"'"' priority as safety threats or safety hazards;

dynamically storing the user'"'"'s selection of objects and referencing those selections according to time and video frame imagery;

comparing the user'"'"'s selection of objects against stored information obtained from acknowledged experts in this skill area; and

providing feedback to the user about the type, location, timing of search and scanning performance errors, and remedial strategies to correct such errors.

2. The method of claim 1, wherein the step of dynamically storing the user'"'"'s selection of objects comprises the additional steps of:

creating interactive target areas that overlay the image display for each of the objects, which interactive target area automatically resizes as the size of the image of the individual object changes with the forward movement of the virtual vehicle along the user'"'"'s virtual driving path as the dynamic driving video is shown on the display;

interacting with the display of the computing device via the pointing device to move the icon representing the position of the pointing device on the display to point at objects in the dynamic video display the user judges to be of instantaneous importance as a safety threat or traffic hazard, and

dynamically selecting the objects to be of importance as safety threats or traffic hazards in the dynamic driving video in real time by moving the icon over the interactive target areas for each of the objects.

3. The method of claim 1, wherein the step of providing feedback to the user comprises the additional step of:

displaying testing assessment results for the user with interactive links to graphical representations of analysis and measurement of performance skill of the user in detecting safety threats and traffic hazards in the dynamic driving video.

4. The method of claim 3, wherein the step of providing feedback to the user further comprises the additional steps of:

providing an overview of the different measures of the user'"'"'s performance in the form of a results display by providing interactive links to each of several reports for each assessment or measure of the user'"'"'s performance skill, and

accessing the several reports in a preprogrammed or user selectable sequence allowing the user to sequentially display one report after another, and then return to the results display.

5. The method of claim 4, wherein the step of accessing the several reports comprises the additional step of:

replaying the portion of the dynamic driving video immediately prior to the user selection of the safety threat or traffic hazard for the user to review.

6. The method of claim 1, wherein the step of dynamically storing the user'"'"'s selection of objects comprising the additional steps of collecting information by:

capturing the time and video frame imagery of each of the user selections of safety threat or traffic hazard objects;

monitoring the length of time the user keeps the icon on a selected interactive target area representing one object and the number of times the user returns to the same selected interactive target area representing the same object;

monitoring the length of time as the user moves the icon to a different interactive target area representing another object and the number of times the user returns to any of the previously selected interactive target areas representing objects; and

storing all of the collected information for use in assessing and measuring the user'"'"'s performance.

7. The method of claim 1, wherein the step of comparing the user'"'"'s selection of objects comprising the additional steps of collecting information by:

calculating the activity of the user in continuous switching of visual attention between objects that are deemed safety threats of traffic hazards;

calculating the fixation of the user on any selected object or objects;

tabulating the number of objects recognized by the user as safety threat or traffic hazard objects; and

determining the distribution of user search efforts for objects in different viewing areas.

8. The method of claim 7, wherein the collected information of user performance is compared to the stored information obtained from acknowledged experts for the same dynamic driving video to create unique reports of user assessment and performance.