malharjajoo's profile - activity

So why doesn't the direction of cv::Rodrigues ( error_mat ) matter ? ( If I have an angle around an axis, and then the s

Random flickers in BackgroundSubMOG2 Hi, I have been trying out the various background subtraction models in openCV fro

Random flickers in BackgroundSubMOG2 Hi, I have been trying out the various background subtraction models in openCV fro

Hi, thanks for pointing those out. I do recall now having read that somehwere ( so annoying !) but I came across this th

But then we only find the norm of the error vector ? What about the direction then

Hi, thanks for point those out. I do recall now having read that somehwere ( so annoying !) but I came across this thesi

Hi,

Recently I have been trying out the various PnP algorithms that are part of the openCV library, such as:

1. P3P
2. EPNP
3. ITERATIVE
4. UPNP
5. DLS

After manually annotating a few images for the 2D correspondences (like in this tutorial), I ran into a few issues and hence

My question:

1. UPNP , EPNP and DLS gave me the same result for all images I used. I think that UPNP and EPNP may have same result since UPNP is like EPNP for uncalibrated cameras (while my camera is calibrated), but I don't understand why DLS is giving me the same result.

2. Can P3P algorithm accept more than 4 inputs ? Currently openCV throws an assertion error if I pass in >4 points using the P3P flag to the cv::solvePnP() method.

Clarification of PnP variants Hi, Recently I have been trying out the various PnP algorithms that are part of the openC

Clarification of PnP variants Hi, Recently I have been trying out the various PnP algorithms that are part of the openC

> 4 points to P3P algorithm Hi, Recently I have been trying out the various PnP algorithms that are part of the open

> 4 points to P3P algorithm Hi, Recently I have been trying out the various PnP algorithms that are part of the open

Hi, thanks for point that out. Yes, I tried searching the literature but couldn't really find much on this. Also, why do

In my second case I am not comparing the direction vector of the axis angle. Yes, but that is not being done in method 1

Detecting bright points in zoomed in image. Hi, Let's say I want to detect the (x,y) coordinates of some number (>1)

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Combining pose estimates from multiple sources Hi, I am receiving 6 DOF pose estimates of an object from 3 cameras. I t

Combining pose estimates from multiple sources Hi, I am receiving 6 DOF pose estimates of an object from 3 cameras. I t

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Method for finding Orientation Error using Axis-Angle Hi, I have a reference value for Roll, pitch and yaw (Euler Angle

Hey, did you find a solution this ? I am currently looking to use this as well to refine some pose estimates.

Hi, I would prefer a more robust solution .... I thought this would have been a common problem, but seems that is not t

Hello, did anyone find a decent solution for this ? I tried using sparse optical flow on the HSV thresholded image, but

Hi, My experiment is using LED in visible spectrum, IR leds would have been easy to detect (although I dont see much su

Hi, thanks for replying, I have updated the question with sample images. My main issue is avoiding random white specks g

Hi, thanks for replying, I have updated the question with sample images. My main issue is avoiding random white specks g

Hi, thanks for replying, I have updated the question with sample images. My main issue is avoiding clutter gets harder a

Distinguishing between white and luminous objects Hi, Update: Sample Image - ============= I am trying to detect m

Distinguishing between white and luminous objects Hi, Update: Sample Image - I am trying to detect moving white LE

Covariance matrices for Kalman Filter Hi, While going through this tutorial on real time pose estiamtion , the Linear K

Distinguishing between white and luminous objects Hi, I am trying to detect moving white LEDs (non-blinking, always ON)

I dont think so, I tried installing openCV 3.4 and it couldn't. What this accepted answer has suggested worked perfectly

Hi, I have now updated the question. what I meant earlier was that their colour was too bright (for the given camera) a

Tracking of LED on UAV Hi, Update: Since LED's appear really tiny once the drone starts moving away, is there some way

Hi, I have now updated the question. what I meant earlier was that their colour was too bright (for the given camera) a

Tracking of LED Hi, I wish to track (using external cameras) some LED strips ( see this for the exact LED type) on my r

Tracking of LED Hi, I wish to track (using external cameras) some LED strips ( see this for the exact LED type) on my r

Tracking of LED on UAV Hi, I wish to track (using external cameras) some LED strips ( see this for the exact LED type)

Tracking of LED on UAV Hi, I wish to track (using external cameras) some LED strips ( see this for the exact LED type)

Tracking of LED on UAV Hi, I wish to track (using external cameras) some LED strips ( see this for the exact LED type)