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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 detection of a specific object in .net

I need to make a .net application where I must detect a specific object the user is holding, using a camera. If the object must have some specific characteristics so that it can be easily recognized and detected from the surrounding space, please…
abinop
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Android rotation matrix sensor to get rotation angles failed

I am currently working on the motion sensor about measure the orientation angle of my Android device. When it comes to implementation , the device turns to zero no matter how we turn or not. Are there any conditions to initialize the float array…
Jeff Bootsholz
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iOS Track movement of ball shaped object in video

I am wondering if there are any good frameworks available that would allow me to: Identify a "ball" object in a video. There will ALWAYS be a ball object, usually an identifiable color, but not always the same darkness, etc Track the movement of…
user3328887
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detecting only slow moving objects using opencv

I am using OpenCV for motion detection and using back ground subtraction algo for this. I got the following code from net. cv::Mat frame; cv::Mat back; cv::Mat fore; cv::VideoCapture cap(0); bg.nmixtures = 3; bg.bShadowDetection…
user2588495
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iphone detect shake throughout app

I need to have a function that detects a shake without having to add the - (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event in every viewController. But when I add the function to the appDelegate, the motion isn't detected. I…
Swissdude
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Tracking ONE person in a scene with many people

I need to identify and track one person in a video scene which may contain other objects/people. Currently, using OpenCV, I can track all people in the frame. (my code is based on the OpenCV examples using Haar CascadeClassifiers) I have few images…
okkhoy
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Motion effect for SKNode

I'm getting int SpriteKit. And would like to know how to create motion effect on SKNode object. For UIView I use following method : +(void)registerEffectForView:(UIView *)aView depth:(CGFloat)depth { UIInterpolatingMotionEffect…
haawa
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Kinect Library for Skeletal Tracking

I'm embarking on a project to do an electronic boxing trainier, designed to help beginners learn the basic building blocks of boxing and also give people an opportunity to shadow box and for it to pick out their faults. I need to do the project now…
Azureaus
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Motion detection with OpenCV c++

I'm trying to play with my webcam and OpenCV. I follow this tuto : http://mateuszstankiewicz.eu/?p=189. But the only result I have is one red border and I don't understand why. Could anyone help me to make it right and fix this ? Here is my code :…
Lenjyco
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iphone app is crashing because of memory allocations

i am writing an app that draws something in a view and it draws based on the devicemotion. But after 4 minutes or so the app crashes and i get this warning: 2014-01-15 17:04:16.605 appName[3427:60b] Received memory warning. This is the code i…
Woudwijk84
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Tracking linear movement on mobile devices

I know this question has already been asked, but all of the posts I can find are at least 2 years old, has everybody given up? I would like to use iOS/Android devices to measure small distances (around 3D objects), is it possible to do it with an…
aledalgrande
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Motion/differences detection between 2 images

I am doing a motion detection app as A c# winform app. I use openCV and the emgu wrapper to discern motion (that I want to trap). A lot of the time there are no motion changes but I still have to check this within my code. I gave md5 a go just to…
Andrew Simpson
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Gesture Recognition in Google Glass

I need to know about a feature in Google glass, whether it is available or not. I have been told that google glass contains a feature called "Gesture Detection using Camera". In other words, a system where it responds to hand commands and signals. I…
PeakGen
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How to recording P‑frame in c#

i am doing motion detection in c# using emgu. i am comparing a jpeg to jpeg in a constant 'stream'. I want to record only the P‑frame. Does anyone have any links? I tried googling but nothing came up.. Thanks
Andrew Simpson
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Best way of storing differences between 2 images

I am doing motion detection. I compare 2 images at a time. The differences are compared at the pixel level. I want to store the differences in a file. I have tried saving the hex value into 2 dimensional string and using the binary formatter…
Andrew Simpson
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