I am interested in learning about topics like AI, machine learning, computer vision, computational geometry, etc. I'm not sure which field I'd like to focus more on yet, but these are topics that are of general interest to me. My school is offering a course tagged as a "parallel and multicore computing" course, and I spoke t...
Dear Sir I want to count no of objects in an image using open cv. I have a soybean image and now I want to count the soybean numbers. If possible please help me and let me know the counting algorithms. Thanks and I look forward to hear from you. Regards, Sumon ...
As a practical developer I would like to make a good algorithm for my specific task, built from blocks, like a 'boundary extraction', or 'gamma correction' and so on, but I don't want to implement the wheel, making all that stuff, so I wander - if there's any powerful CV library, like C++'s OpenCV? Saying "the best", I mean library havi...
Hi, I'm currently extending an image library used to categorize images and i want to find duplicate images, transformed images, and images that contain or are contained in other images. I have tested the SIFT implementation from OpenCV and it works very well but would be rather slow for multiple images. Too speed it up I thought I could ...
Hi guys I have one problem in the second step which is to accumulate weighted votes for gradient orientation over spatial cells. Assuming the cell is 8*8. Let me use two matrix GO[8][8]([1 9]), GM[8][8] to represent the gradient orientation and gradient magnitude respectively. The gradient orientation ranges from 0 - 180 and there are ...
I need to count out boxes in a warehouse by using edge detection techniques, images will be taken from a 3D model of a warehouse and the propose system will be used 3 images in 3 different angles to cover the whole area of a warehouse. As I have no experience in image processing before I'm a bit confused about which algorithm to use. ...
Possible Duplicate: Image processing - edge detection I need to count out boxes in a warehouse by using edge detection techniques, images will be taken from a 3D model of a warehouse and the propose system will be used 3 images in 3 different angles to cover the whole area of a warehouse. Does anyone know how to get length of ...
I am using openCV but I can't find anything in the documentation about what the parameter returnDFVal means in the predict method for support vector machines. Does anybody else know? ...
I want to make a program for checking the printed paper for errors. PDF File: please refer to the second page, top right picture As you see, that system could identify the errors made by printer. I want to know how was it achieved. What are existing documents about this? Or any ideas you have? Thank you ...
Hi everybody, I have some images that contain numbers written perfectly. These numbers can go from one to 4 characters. Is there a way to recognize and convert these numbers to text with PHP or Javascript? Thank you, Regards. ...
In my template-matching code I need the user to pass a floating-point parameter, which specifies whether the algorithm should concentrate only on the best matches (thus work faster) or analyse even low-probability areas (making it slower). The parameter is linear and normalized such that possible values are in range <0, 1>. It doesn't m...
Hi, I am trying to implement the codebook foreground detection algorithm outlined here in the book Learning OpenCV. The algorithm only describes a codebook based approach for each pixel of the picture. So I took the simplest approach that came to mind - to have a array of codebooks, one for each pixel, much like the matrix structure und...
Hi all: i am developing a programme which is capable of recognizing several hand gestures.Now the requirement need a language using the hand gestures.So, how can i construct one ? My current idea is using regular expression and Backus Naur Form to define the syntax,but i get stuck in the design. PLUS : the gestures is merely finger ...
I create simple test application to perform translation(T) and rotation (R) estimaiion from essential matrix. Generate 50 random Points. Calculate projection pointSet1. Transform Points via matrix (R|T). Calculate new projection pointSet2. Then calculate fundamental matrix F. Extruct essential matrix like E = K2^*F*K1 (K1, K2 - int...
With StompChicken's corrections (I miscomputed one dot product, ugh!) the answer appears to be yes. I have since tested the same problem using a precomputed kernel with the same correct results. If you are using libsvm StompChickens clear, organized computations are a very nice check. Original Question: I am about to start using precom...
I am looking for a library or method to decode a QR Code (or potentially another form of 2d barcode) and to be able to actually determine the camera position and orientation. This seems like it should be doable, but I am not entirely sure. Does anyone know what the best route for this is? Or if it is even possible? ...
When I try to capture video from webcam using OpenCV, it opens a new window and the video is shown there. Instead of showing in a separate window, I want the video to be shown in a windows form element like picturebox. I am using visual c++ 2008 for developing windows forms. Plz help me. ...
I'm looking for an open source project or library (c++, c) that can give me a method to calculate the distance to a certain object (pixel) in the image, assuming I have all the info about the cameras - The field of view, focal length, distance between cameras, etc.. ...
So in general, when we think of Single View Reconstruction we think of working with planes, simple textures and so on... Generally, simple objects from nature's point of view. But what about such thing as wet beach stones? I wonder if there are any algorithms that could help with reconstructing 3d from single picture of stones? ...
I recently watched a youtube video of a computer program tracking particles and other objects. Since I dont tend to find much about multi object tracking when searching, does any one have any ideas what algorithms could be in use here? ...