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我需要在 matlab 中实现 RANSAC 算法以实现图像拼接。我在 bestMatches 矩阵 (2 x 500) 中有两个图像的最佳匹配点现在我需要实现 RANSAC，这是我到目前为止所做的。我已经对需要做的事情发表了评论，任何人都可以帮我实现它作为一个整体。我已经努力了好几天来做到这一点，但没有成功。请帮忙。

% ---- run RANSAC  ----
% define RANSAC parameters
threshDistBetPoints = 0.1;
numOfIteration = 50;
numOfRandomPoints = 3;
inlierRatio = 0.6;

% output parameters of RANSAC
best_transform = [];
best_num_inliers = 0;

% Plot the data points
for i=1:numOfIteration
%    1) select 3 random points
        idx = randperm(size(bestMatches,2),numOfRandomPoints); 
        sample = bestMatches(:,idx); 

%    2) compute affine transform T'

%    3) take all 500 matching points
        % map all Q(right image) to P'(left image) (transformation)
        % Compute distances between P' and P point (Left Image) 
        % compute no. of inliers
%    4) store the currently best affine transform
        % output of first iteration - T' and no. of inliers     
        if inlierNum >= best_num_inliers 
             best_num_inliers =  inlierNum
        if end
for end
% End of algorithm best transform = T' with largest numbers of inliers
% stitch function - already implemented

Additional information 
sample =

        3677        6527        2759
        3413        6343        2485
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