eye-tracking

问题 I am trying to build a robot that I can control with basic eye movements. I am pointing a webcam at my face, and depending on the position of my pupil, the robot would move a certain way. If the pupil is in the top, bottom, left corner, right corner of the eye the robot would move forwards, backwards, left, right respectively. My original plan was to use an eye haar cascade to find my left eye. I would then use houghcircle on the eye region to find the center of the pupil. I would determine

问题 I am trying to build a robot that I can control with basic eye movements. I am pointing a webcam at my face, and depending on the position of my pupil, the robot would move a certain way. If the pupil is in the top, bottom, left corner, right corner of the eye the robot would move forwards, backwards, left, right respectively. My original plan was to use an eye haar cascade to find my left eye. I would then use houghcircle on the eye region to find the center of the pupil. I would determine

问题 I am trying to build a robot that I can control with basic eye movements. I am pointing a webcam at my face, and depending on the position of my pupil, the robot would move a certain way. If the pupil is in the top, bottom, left corner, right corner of the eye the robot would move forwards, backwards, left, right respectively. My original plan was to use an eye haar cascade to find my left eye. I would then use houghcircle on the eye region to find the center of the pupil. I would determine

问题 The ARFaceTrackingConfiguration of ARKit places ARFaceAnchor with information about the position and orientation of the face onto the scene. Among others, this anchor has the lookAtPoint property that I'm interested in. I know that this vector is relative to the face. How can I draw a point on the screen for this position, meaning how can I translate this point's coordinates? 回答1: .lookAtPoint instance property is for direction's estimation only. Apple documentation says: .lookAtPoint is a

问题 The ARFaceTrackingConfiguration of ARKit places ARFaceAnchor with information about the position and orientation of the face onto the scene. Among others, this anchor has the lookAtPoint property that I'm interested in. I know that this vector is relative to the face. How can I draw a point on the screen for this position, meaning how can I translate this point's coordinates? 回答1: .lookAtPoint instance property is for direction's estimation only. Apple documentation says: .lookAtPoint is a

问题 I've been able to detect pupil and the eye corners accurately so far. You can see a few snaps i uploaded in my answer to my own question here: Performing stable eye corner detection Here's what i've done so far. I calibrated the gaze of the user by looking at TLCP, TRCP and BLCP where CP = calibration point; a screen point used for calibration B = bottom T = top L= left R = right gaze_width = TRCP.x - TLCP.x gaze_height = BLCP.y- TLCP.y And the corresponding gaze points i get by looking at

问题 I used to work with an eye tracker Tobii Pro and wrote a Python script using PyGaze . I recently had to change of tracker and got a Tobii 4C , which doesn't seem to work with that PyGaze library. I've searched the internet for hours but I couldn't find an alternative to PyGaze. Do you know some library/API/... that I can use ? (Python is not an obligation) Thanks in advance. 回答1: You can see the various available SDKs for their products on their website. Apparently you have no less than three

问题 I am developing an application that maps users eye movements with the cursor movements, hence developing ahands free cursor control system. I am using Open CV library's .NET Wrapper for C# i.e. Emgu CV for development. I am stuck at a point where I want to open a file/folder such that when a cursor is placed over a file/folder for say 3 to 5 seconds, the file/folder should open up or just perform a double-click event of a conventional mouse. What could I use so as to solve this problem? 回答1:

问题 I am working on a project aimed to track eye pupil . For this I have made a head-mounted system that captures the images of the eye. Completed with the hardware portion I am struck in software part. I am using opencv . Please let me know what would be the most efficient way to track the pupil. Houghcircles didn't performing well. After that I have also tried with HSV filter and here is the code and link to screenshot of the raw-image and processed one. Please help me to resolve this issue.

问题 How can I detect irises in a face with opencv? 回答1: Have a look at this forum thread. There's some source code there to get you started, but be careful about using it directly -- the original author seemed to have problems compiling it. 回答2: Start with detecting circles - see cvHoughCircles - hint, eyes have a series of concentric circles. 回答3: OpenCV has Face Detection module which uses Haar Cascade. You can use the same method to detect Iris. You collect some iris images and make it as