Matlab book on geometry and image processing
Hi everyone, Does anyone know an easy to understand geometry and image processing book that has source code in matlab? Thanks alot! ...
computer-vision
Beginning at Computer Vision and Image Processing (Machine Vision, Third Edition: Theory...book review?)
Hi, I am interested in computer vision and image processing (object recognition). However my knowledge about these is equal to 0. I'm trying to find some recommendation about books that I should start with... I found this book really interesting, at least by looking at table of contents and few customer reviews. They all seemed fine, ...
What is projective geometry and cross ratio in computer vision?
Please explain a layman's way. I was reading this tutorial http://lear.inrialpes.fr/people/triggs/pubs/isprs96/node27.html but i am not able to understand. ...
MATLAB: How to find the image of the line at infinity corresponding to a plane?
There is an image of two separated papers on the floor. How to find the image of the line at infinity corresponding to the plane of the floor? See the image at: (larger) Anyone has some idea on how to start with MATLAB? Thank you, ...
What is affine invariant?
What is affine invariant? Please explain affine invariant intuitively. ...
Matlab implementation of Haar feature extraction
Does anyone know of a (purely) matlab implementation of Haar feature extraction (the kind used in Viola&Jones object detection algorithm)? (I ran across a matlab binding to Opencv's implementation but this is not what I am looking for) ...
Computer vision application for automotive telematics application
What sort of application can be considered to be the really business winner for automotive telematics applications related to image processing/computer vision ? here are the criteria : 1. Innovative 2. Social 3. Fun. ...
Calculating displacement moved in Matlab
Hello, I need to compare 2 or more images to calculate how much a point shifted in the x and y direction. May I know how do I go about doing this in Matlab? Thanks! ...
Houghlines in Matlab
Hello, After detecting the lines in an image using Houghlines, how can I use it to calculate the change in angle(rotation) of the lines of a reference image? Thanks. ...
Finding location of rectangles in an image with OpenCV
I'm trying to use OpenCV to "parse" screenshots from the iPhone game Blocked. The screenshots are cropped to look like this: I suppose for right now I'm just trying to find the coordinates of each of the 4 points that make up each rectangle. I did see the sample file squares.c that comes with OpenCV, but when I run that algorithm on t...
Programmable cameras C# for vehicle system
Hi folks ! I recently joined a project where I need to get some vehicle based computer vision system. So what sort of special functionalities does a camera need, to be able to capture images while traveling at varying speeds ? for example how high a frame rate is required, and the exposure duration, shutter speed? Do you think that webca...
Logo recognition in images
Does anyone know of recent academic work which has been done on logo recognition in images? Please answer only if you are familiar with this specific subject (I can search Google for "logo recognition" myself, thank you very much). Anyone who is knowledgeable in computer vision and has done work on object recognition is welcome to commen...
OCR for Devanagari (Hindi / Marathi / Sanskrit)
Does anybody have any idea about any recent work being done on optical character recognition for Indian scripts using modern Machine Learning techniques ? I know of some research being done at ISI, calcutta, but nothing new has come up in the last 3-4 years to the best of my knowledge, and OCR for Devanagari is sadly lacking! ...
Normal of an equilateral triangle that has been arbitrarily transformed in 3D space
I have an issue that I can't quite seem to find a starting point on; I'm not even sure I can describe it well enough to get an answer. I need to find the normal of an equilateral triangle in 3D space without knowing the points of the triangle beforehand. Think about taking a photo of a triangular "yield" street sign from any angle, and...
How to input the image to the neural network?
I understand the way how the neural net is working, but if I want it to use for image processing, actually character recognition, I can't understand, how can I input the image data to the neural net, if I can have a very big image of an A letter! May be I should try to get some info from the image, some specifications of the image, and ...
An iPhone library for shape recognition via the camera.
Hi I hope this falls within the "programming question" category. Im all lightheaded from Googling (and reading every post in here on the subject) on the subject "Computer Vision", but Im getting more confused than enlightened. I have 6 abstract shapes printed on a piece of paper and I would like to have the camera on the iPhone identi...
how to recognize the object I detect in video frames is a people or a car.
I have a problem to detect object in images or video frames. I have a task that is detect some people or something who enter into the sight of web camera, and then my system will be alarm. Next step is recognize which kind of thing the object is, in this phase I know use Hough transform to detect line, circle, even rectangle. But when ...
how to remove background image and get fore image
there are two images one is background image another one is a person's photo with the same background ,same size,what i want to do is remove the second image's background and distill the person's profile only. the common method is subtract first image from the second one,but my problem is if the color of person's wear is similar to ...
how to recognize the kind of object we intrest in picture
this is a picture of a dog's contour and a horse's contour how to make computer know it is a horse or a dog or a person. ...
who recommend me a professional computer vision web site so i can ask question in it.
who recommend me a professional computer vision web site so i can ask question in it. thanks a lot ...