Apparatus and method for estimating and using a predicted vehicle speed in an indirect vision driving task
First Claim
1. A method for aiding an operator during performance of an indirect vision driving task while viewing a display of a video camera return of a driving scene via a display device, comprising:
- determining parameters for both of a display being viewed during an indirect vision driving task and of a camera providing a camera return that is being displayed;
determining characteristics of a plurality of sections of a course in the driving scene being displayed to the operator via the display device;
determining an actual speed of the vehicle during the indirect vision driving task;
calculating an estimated operator-perceived vehicle speed as would be expected to be visually perceived and interpreted as being the actual vehicle speed by the operator during performance of the indirect vision driving task while viewing the display device for each of a plurality of sections of the course in the driving scene based on the above determinations; and
adaptively controlling, via a processor, the display of the driving scene on the display device to the operator in a manner so as to mitigate the difference between the estimated operator-perceived vehicle speed for the operator and the actual vehicle speed during the performance of the indirect vision driving task.
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Abstract
A method and apparatus for predicting vehicle speed during an indirect vision driving task. A further method and apparatus for optimizing the display of a camera return during an indirect vision driving task based on operator perceived vehicle speed as set by the display characteristics and the field-of-view of the camera. A further method and apparatus for using the perceived speed as a driving task aid, in particular, as an electronic aider for optimizing the driving scene display characteristics of scene compression and camera field-of view. In this manner, the invention adjusts the perceived speed in order to match the operator'"'"'s cognitive flow to the control dynamics needed from the operator for the task. The invention has application to autonomous driving where manual intervention is incorporated during critical events for particular tasks; and with limited display space within the vehicle, the display format is adjusted by the invention according to the operator'"'"'s task needs.
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Citations
20 Claims
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1. A method for aiding an operator during performance of an indirect vision driving task while viewing a display of a video camera return of a driving scene via a display device, comprising:
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determining parameters for both of a display being viewed during an indirect vision driving task and of a camera providing a camera return that is being displayed; determining characteristics of a plurality of sections of a course in the driving scene being displayed to the operator via the display device; determining an actual speed of the vehicle during the indirect vision driving task; calculating an estimated operator-perceived vehicle speed as would be expected to be visually perceived and interpreted as being the actual vehicle speed by the operator during performance of the indirect vision driving task while viewing the display device for each of a plurality of sections of the course in the driving scene based on the above determinations; and adaptively controlling, via a processor, the display of the driving scene on the display device to the operator in a manner so as to mitigate the difference between the estimated operator-perceived vehicle speed for the operator and the actual vehicle speed during the performance of the indirect vision driving task. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Apparatus for aiding an operator during performance of an indirect vision driving task performed by a vehicle operator while viewing a display of a video camera return of a driving scene via a display device, comprising:
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a camera for generating a video camera return signal representative of an driving scene; a video signal processor for applying the video camera return signal to a display for viewing of the driving scene by the vehicle operator; a speed prediction modeler for predicting a driving speed, where the speed prediction modeler determines parameters for both of the display and of the video camera, determines characteristics of a plurality of sections of a course in the driving scene being displayed, determines an actual speed of the vehicle during the indirect vision driving task, and then calculates an estimated operator-perceived vehicle speed as would be expected to be visually perceived and interpreted as being the actual vehicle speed by the operator during performance of the indirect vision driving task while viewing the display device for each of a plurality of sections of the course in the driving scene based on the above determinations; and an adapter aider for adaptively controlling the display of the driving scene on the display device to the operator in a manner so as to mitigate the difference between the estimated operator-perceived vehicle speed for the operator and the actual vehicle speed during the performance of the indirect vision driving task. - View Dependent Claims (17, 18, 19, 20)
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Specification