Showing posts with label Pattern recognition. Show all posts
Showing posts with label Pattern recognition. Show all posts

Computer Vision and Image Understanding

The focus of this journal is the computer analysis of image information It is a open Journal and has many topics on all areas of image analysis.

Link to Journal:

ISSN: 1077-3142
Impact factor: 2.22

Acoustics, Speech and Signal Processing, IEEE Transactions on

Good journal well regarded and lots of info on "machine learning and pattern analysis" as applied to articles on speech, music DSP.

Link to Journal:


ISSN: 0096-3518
Impact factor: 1.675

Statistical pattern recognition: a review

May give me a different perspective to my Neural net:


Abstract:

The primary goal of pattern recognition is supervised or unsupervised classification. Among the various frameworks in which pattern recognition has been traditionally formulated, the statistical approach has been most intensively studied and used in practice. More recently, neural network techniques and methods imported from statistical learning theory have been receiving increasing attention. The design of a recognition system requires careful attention to the following issues: definition of pattern classes, sensing environment, pattern representation, feature extraction and selection, cluster analysis, classifier design and learning, selection of training and test samples, and performance evaluation. In spite of almost 50 years of research and development in this field, the general problem of recognizing complex patterns with arbitrary orientation, location, and scale remains unsolved. New and emerging applications, such as data mining, web searching, retrieval of multimedia data, face recognition, and cursive handwriting recognition, require robust and efficient pattern recognition techniques. The objective of this review paper is to summarize and compare some of the well-known methods used in various stages of a pattern recognition system and identify research topics and applications which are at the forefront of this exciting and challenging field

Link to:


Published in: Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:22 ,  Issue: 1 )
Date of Publication: Jan 2000Page(s):4 - 37

A machine vision system for grading lentils

A machine vision system for color grading of lentils was developed using a flatbed scanner as the image-gathering device. Grain samples belonging to different grades of large green lentils were scanned and analyzed over a two-crop season period. Image color, color distribution, and textural features were found to begood indicators of lentil grade. Linear discriminant analysis, k-nearest neighbors, and neural network based classifiers performed equally well in predicting sample grade. An online classification system was developed with a neural classifier that achieved an overall accuracy (agreement with the grain inspectors) of more than 90%.
Keywords: lentils, grading, inspection, machine vision, color, image analysis, image classification, flatbed scanner

Publication Number GRL# 809. Shahin, M.A. and Symons, S.J. 2001.

Wi-Vi system uses Wi-Fi to see through walls

Researchers at MIT's Computer Science and Artificial Intelligence Laboratory have developed what could become low-cost, X-ray vision. The system, known as "Wi-Vi," is based on a concept similar to radar and sonar imaging, but rather than using high-power signals, this tech uses reflected Wi-Fi signals to track the movement of people behind walls and closed doors.
Journal
http://people.csail.mit.edu/fadel/papers/wivi-paper.pdf

conclusions .... So far

Using pattern recognition to analysis a Image to extract particular frequency’s from the sample

Specific wave length colorimeter , using the Arduino we can build a quick embedded circuit, to read the intensity of light passing though a liquid

can prove beers Lambert law
add a base solution to get calibration
add a pattern we want to find i.e. caffeine
use software to process signal
test different liquids to see if pattern exists

may not happen as hard to pull out signals unless have a reaction agent.

As all these solutions require signal processing that the next stop so after lots of research on alagroms .see keyworks this lead me onto Back propergation nureal networks seem to be the answer , as I will know the output signal Im looking for


colorimeter problem but this device has a disadvantage that the sensing area is very small. as only specfic wavelenghts , need either lots of differnt LED including IR and uv....? or full spectrometer.... but is very simple to implement , and that what im looking for

Pattern recognition