Non-Touch Eye Tracking Control System for Hygienic Operation
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Solution Overview
Problem
Current computer systems require direct physical intervention for operation, which can spread diseases and are inaccessible to individuals with disabilities, and existing eye-controlled systems still necessitate physical contact and infrared beam generators.
Innovation Solution
A non-touch operation system comprising a display unit, image capture unit, image processing unit, line of sight analysis unit, notification unit, action analysis unit, and operation execution unit, which calculates head and eye position parameters to determine the operator's line of sight and actions, allowing for visual notification and execution of commands without physical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If direct physical intervention via input devices is used, then ease of operation is improved, but disease transmission risk increases and accessibility for disabled users deteriorates
Solution Approach 1:
The patent replaces mechanical input devices (mouse, keyboard, touch screen) with an eye-tracking based control system. The image capture unit captures eye movement data, and the line of sight analysis unit processes this data to determine user intent, eliminating the need for physical contact with input devices and thus reducing disease transmission risk while maintaining ease of operation.
2Ease of operation
If direct physical intervention via input devices is used, then ease of operation is improved, but accessibility for disabled users deteriorates
Solution Approach 1:
The patent replaces mechanical input devices with an eye-tracking based control system that can be operated by users with various disabilities. The system captures eye movement data and processes it to determine user intent, providing a universal interface that accommodates users with motor impairments, visual impairments, or other disabilities that limit their ability to use traditional input devices.
3Object-affected harmful factors
If eye-controlled operation system is implemented, then physical contact requirement is eliminated, but device complexity increases due to multiple units required
Solution Approach 1:
The patent implements a multi-functional integrated system where the image capture unit serves multiple purposes: capturing eye movement data for control, providing feedback for notification, and enabling action recognition. The line of sight analysis unit performs multiple functions including determining watching points, identifying operating objects, and analyzing user actions. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The patent merges the image capture unit, line of sight analysis unit, notification unit, and action analysis unit into an integrated system. These units work together in a coordinated manner where the image capture unit provides data to the line of sight analysis unit, which then determines watching points and operating objects, and finally the action analysis unit identifies user actions. This merging of functions into a unified system reduces overall device complexity compared to having separate independent components.
4Object-affected harmful factors
If existing eye-controlled systems are used, then non-contact operation is achieved, but additional components like infrared beam generators are required
Solution Approach 1:
The patent replaces complex optical systems including infrared beam generators with a simpler image capture unit that uses standard cameras to capture eye movement data. The line of sight analysis unit processes this image data to determine user intent, eliminating the need for specialized infrared components while maintaining non-contact operation capability.
Data Source
AI summary
Techniques to control computing systems without the physical touches by operators are disclosed. According to one aspect of the techniques, a non-touch operation system comprises a display unit for displaying operating objects, a capture unit for capturing images of an operator, an image processing unit, a line of sight analysis unit, a notification unit, an action analysis unit and an operation execution unit. The image processing unit is provided for calculating head's position parameters and eye's position parameters according to the captured images. The line of sight analysis unit is provided for determining a watching point of the operator on the display unit according to the calculated head's and eye's parameters and further determining one operating object according to the watching point. The notification unit is provided for informing the operator of the determined operating object in an apperceive way. The action analysis unit is provided for identifying an action of the operator according to one parameter of the calculated head' and eye's position parameters and further determining an action instruction corresponding to the action of the operator. The operation execution unit is provided for executing operation depending on the determined operator object and the determined action instruction.