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Questions tagged [motion-detection]

Related to detection of motion related to programming issues, like computer vision, sensor control, etc.

Motion detection is a process of confirming a change in position of an object relative to its surroundings or the change in the surroundings relative to an object. This detection can be achieved by both mechanical and electronic methods. In addition to discrete, on or off motion detection, it can also consist of magnitude detection that can measure and quantify the strength or speed of this motion or the object that created it.

Motion can be detected by: sound (acoustic sensors), opacity (optical and infrared sensors and video image processors), geomagnetism (magnetic sensors, magnetometers), reflection of transmitted energy (infrared laser radar, ultrasonic sensors, and microwave radar sensors), electromagnetic induction (inductive-loop detectors), and vibration (triboelectric, seismic, and inertia-switch sensors).

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motion tracking by accelerometer inertial sensor

I'm trying to make the hand tracking by an acceloremeter. I don't know if it is a good idea, or is better the optical tracking system. In particular there is an accelerometer mounted on the back of the hand and I want to get the position of the hand…
Luigi Biasi
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track user translation movement on ios using sensors for vr game?

I'm starting to experiment VR game development on ios. I learned a lot from google cardboard sdk. It can track user's head orientation, but it can not track user's translation. This shortage cause the use can only look at the virtual environment…
Zhiqiang Li
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Camera/Observer motion (egomotion) from optical flow

I have a camera (actually: a stereo pair) moving towards a target. While doing so the target is imaged at a constant Hz rate. From these images I would like to retrieve the motion of the cameras based on the images. The target itself is steady. At…
Zwähnia
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Difference between Kivy camera and opencv camera

What is the difference between Kivy Camera and opencv ? I am asking this because in Kivy Camera the image gets adjusted according to frame size but in opencv this does not happen. Also I am not able to do motion detection in kivy camera whereas I…
Arnav Goel
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How can I make my motion detector in OpenCV less sensitive for light conditions?

I tried to make a motion detector but as I saw, it is very sensitive because of lighting conditions. I would like to detect if there was a change on a dart board (so when somebody throws a dart, detect it). This is how I tried it: """ Vecsei…
Gabe
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How to get background from cv2.BackgroundSubtractorMOG2?

Is there any way to obtain background from cv2.BackgroundSubtractorMOG2 in python? In other words, is there any technique to compute an image based on last n frames of a video, which can be used as background?
Leopoldo
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Motion detection using C# and EmguCV

I am kind new with emgucv and optical flow. I am trying to recognize object in motion on video and draw around them circle or rectangle or some other shape. I must use opticalflow.HS and opticalflow.LK. That is the first thing I want to do. I am…
vale
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Using Picamera for motion detection

I am using Pi camera and motion detection software to detect motion. I have installed motion by " sudo apt-get install motion" and have edited the configuration file "/etc/motion/motion.conf" to start in daemon mode. But i am unable to understand…
Akriti Gupta
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upload photos to s3 from raspberry pi without delay

I am writing a program to capture motion, take a picture, sleep, blink etc. Here is the code so far without the functions because those aren't the problem. try: starting() while duration < 3: previous_state = current_state …
John Raesly
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Using Accelerometer and Gyroscope to Get a Phone's Approximate Position in Space

I am familiar with traditional motion and object tracking techniques, however, I am wondering if there is a way I can track a modern phone in 3D space without imaging. By modern I mean it has a touch screen, a gyroscope, and an accelerometer. Is…
Dylan Siegler
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What changes should be done in the algorithm/ MATLAB code to detect vehicles in proper shape?

I am working on a project in image processing which is based on importance of phase only reconstruction of a signal obtained using Fourier transform.For more information about phase only reconstruction,you can see the answer given by geometrikal in…
sagar
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findHomography usage opencv

I am using opencv c++ and am a new user. I am interested in object detection problems . So far I have studies and implemented the use of sparse optical flow( Lucas Kanade method) in a video from a stationary camera.After trying k means and…
george_t
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Writing Real-Time data from Motion Capture System to a CSV file?

I am currently working on a project that incorporates the VICON Motion Capture System to analyze step length in subjects. The system uses infrared cameras with markers to create 3D models. The VICON system is currently set-up to use DataStreamSDK to…
Gabrielle
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detecting move in different directions. is it even possible?

I'm wondering about one thing. Is it possible to detect move of my phone up/down in vertical axis ? I mean straight up or down with standard smartphone ? By "standard" I mean device with out barometer. My second question. Is it possible do detect…
Fixus
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Kinect robotic arm detection

can i use Kinect sensor to detect the motion of a robotic arm (KUKA LBR iiwa 7R800) and calculate it's links angles in order to make it control another robotic arm.
Mohanad Mansour
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