matlab 计算机视觉工具箱step含义

最新推荐文章于 2025-05-16 12:53:46 发布

Sousky

最新推荐文章于 2025-05-16 12:53:46 发布

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分类专栏： matlab编程

本文链接：https://blog.youkuaiyun.com/Sousky/article/details/76443807

这篇博客介绍了MATLAB计算机视觉工具箱中，`step`函数在CascadeObjectDetector和PointTracker中的应用。在CascadeObjectDetector中，`step`调用后，bbox返回的是1*4向量，表示边界框位置和大小；而在PointTracker中，`step`用于跟踪特征点，points数组存储了特征点坐标，isFound数组则标记了每个特征点是否成功跟踪。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

% Create a cascade detector object.
faceDetector = vision.CascadeObjectDetector();
% Read a video frame and run the face detector.
videoFileReader = vision.VideoFileReader(infilename);
videoFrame      = step(videoFileReader);
bbox            = step(faceDetector,videoFrame);

上面code中，第二个step会call CascadeObjectDetector.m

%CascadeObjectDetector Detect objects using the Viola-Jones algorithm
%   DETECTOR = vision.CascadeObjectDetector creates a System object
%   that detects objects using the Viola-Jones algorithm. The DETECTOR
%   is capable of detecting a variety of objects, including faces and a
%   person's upper body. The type of object to detect is controlled by
%   the ClassificationModel property. By default, the DETECTOR is
%   configured to detect faces.
%
%   …………
%
%   BBOXES = step(DETECTOR,I) performs multi-scale object detection on
%   the input image, I, and returns, BBOXE