matching

I want to match feature points in stereo images. I've already found and extracted the feature points with different algorithms and now I need a good matching. In this case I'm using the FAST algorithms for detection and extraction and the BruteForceMatcher for matching the feature points. The matching code: vector< vector<DMatch> > matches; //using either FLANN or BruteForce Ptr<DescriptorMatcher> matcher = DescriptorMatcher::create(algorithmName); matcher->knnMatch( descriptors_1, descriptors_2, matches, 1 ); //just some temporarily code to have the right data structure vector< DMatch > good

I have a column of numbers of over 500 rows. I need to use VBA to check if variable X matches any of the values in the column. Can someone please help me? If you want to do this without VBA, you can use a combination of IF , ISERROR , and MATCH . So if all values are in column A, enter this formula in column B: =IF(ISERROR(MATCH(12345,A:A,0)),"Not Found","Value found on row " & MATCH(12345,A:A,0)) This will look for the value "12345" (which can also be a cell reference). If the value isn't found, MATCH returns "#N/A" and ISERROR tries to catch that. If you want to use VBA, the quickest way is

What is the best way to match fully qualified Java class name in a text? Examples: java.lang.Reflect , java.util.ArrayList , org.hibernate.Hibernate . Tomalak A Java fully qualified class name (lets say "N") has the structure N.N.N.N The "N" part must be a Java identifier. Java identifiers cannot start with a number, but after the initial character they may use any combination of letters and digits, underscores or dollar signs: ([a-zA-Z_$][a-zA-Z\d_$]*\.)*[a-zA-Z_$][a-zA-Z\d_$]* ------------------------ ----------------------- N N They can also not be a reserved word (like import , true or

Is there a regex flavor that allows me to count the number of repetitions matched by the * and + operators? I'd specifically like to know if it's possible under the .NET Platform. You're fortunate because in fact .NET regex does this (which I think is quite unique). Essentially in every Match , each Group stores every Captures that was made. So you can count how many times a repeatable pattern matched an input by: Making it a capturing group Counting how many captures were made by that group in each match You can iterate through individual capture too if you want! Here's an example: Regex r =