Hi folks, I am planning to start a computer vision based project on a smart phone platform. I know iPhone ( http://niw.at/articles/2009/03/14/using-opencv-on-iphone/en ) and Andriod ( http://github.com/billmccord/OpenCV-Android ) have openCV support. I am interested in knowing how was your experience with the level of integration, sup...
When you're using Haar-like features for your training data for an Adaboost algorithm, how do you build your data sets? Do you literally have to find thousands of positive and negative samples? There must be a more efficient way of doing this... I'm trying to analyze images in matlab (not faces) and am relatively new to image processing...
I want to use SMO (Sequential Minimal Optimization) in order to train an SVM (Support Vector Machine). Can anyone suggest existing C++ libraries which implement SMO? I plan to use this to train an SVM to find an object in a picture (probably a human). ...
I've developed a simple and fast algorithm in PHP to compare images for similarity. Its fast (~40 per second for 800x600 images) to hash and a unoptimised search algorithm can go through 3,000 images in 22 mins comparing each one against the others (3/sec). The basic overview is you get a image, rescale it to 8x8 and then convert those...
Hi, I'm trying to implement face detection in C#. I currently have a black + white outline of a photo with a face within it (Here). However i'm now trying to remove the noise and then dilate the image in order to improve reliability when i implement the detection. The method I have so far is here: using System; using System...
Hi, I am supposed to implement Dynamic programming algorithm for Stereo matching problem. I have read 2 research papers but still haven't understood as to how do I write my own c++ program for that ! Is there any book or resource that's available somewhere that I can use to get an idea as to how to start coding actually ? Internet sea...
I'm trying to get an image of a blackboard readable by OCR. Naturally, most OCR software doesn't like dirty images. What image processing should I try to put the image through to clean the image up? ...
I am looking for an analytics solution that can give me loitering detection, line crossing, and people counting. I prefer an API over an entire software solution due to the specific requirements of the project. I have found two companies that provide video analytics, but neither seem to be in a hurry to give me pricing :P. Is there an...
Hi, I have a client who is looking for a solution to integrate cctv with a (any) ANPR solution that can,I assume recognize the number plate of cars and store in a database and has the ability to post this data to other backoffice applications, crm, marketing app. etc. Is there any ready software to do this ? Or your recommendations ?...
I believe, there is an algorithm, which can equal two strings with similar typefaces of a characters, but different symbols (digits, Cyrillic, Latin or other alphabets). For example: "hello" (Latin symbols) equals to "he11o" (digits and Latin symbols) "HELLO" (Latin symbols) equals to "НЕLLО" (Cyrillic and Latin symbols) "really" (Lati...
How does reconstruction using video compare to using standard reconstruction using still images? What similarities and differences are there. Finally what can and cannot be reconstructed using standard stereo methods? ...
How do Harris-Stevens interests points compare to other interest points detectors, and which should I use? ...
Hi, I wrote the code for hough transformation and it works well. Also I can crop the eye location of a face. Now I want to detect the iris of the crop image with applying the Hough transformation(cvHoughCircle). However when I try this procedure, the system is not able to find any circle on the image. Maybe, the reason is, there are noi...
What is the matrix of sobel operator of size 3x3 if the operator is said to be diagonal (Left or right diagonal)? EDIT: or may be with more bigger size ...
I have looked a little bit into face recognition recently. However I am overwelmed by the number of algorithm that there are. PCA, LDA, IDA, Gabor Wavelets, AAM ... Say you wanted to make something like this... Which algorithms would you use or which papers would you read? ...
What can be Questions and Answers for Interview on job position for objects recognition and Computer vision? Please only Qs with links to As. Please keep being on topic (no general Qs). ...
I am investigating the possibility of image processing to identify certain objects and also count them in an image. I will be given a picture and I need to identify the number of boxes present in that image. Does anybody have any experience with any Machine Vision/ Image Processing libraries like ImageJ, Fiji, JAI, jMagick ,Java Visio...
I would like to draw a rectangle around a video playing on my screen. For example, I am watching a YouTube video in my browser. I would like to be able to take a screenshot, analyze that screenshot, and then draw a rectangle around where the YouTube video is playing. I have just started looking into how I might be able to to this. I came...
Thank you for help. ...
I am looking in to learning a programming language (take a course) for use in image analysis and processing. Possibly Bioinformatics too. Which language should I go for? C or Java? Other languages are not an option for me. Also please explain why either of the languages is a better option for my application. ...