SIFT 是做什么的?
SIFT 是做什么的?它是否建立了视图之间的特征对应关系?它是否接收图像的角并删除那些不具有描述性的角?它会进行匹配吗?
What does SIFT do? does it establish the feature correspondences between views? Does it receive the corners of the image sand remove the ones which are not descriptive? Does it do the matching?
如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱,如果其他用户或者作者回复了您的评论,将不能在第一时间通知您!
发布评论
评论(1)
SIFT 是“尺度不变特征变换”的缩写。
SIFT 特征通常用于定位图像中的描述点。
对于图像拼接,SIFT 特征位于两个图像中。然后,您在两个图像中寻找相似的点/特征。如果找到足够的对应关系并且图像包含一些共同部分。
SIFT 特征在图像中具有位置,此外该特征还包含图像附近区域的粗略描述(该区域的大小取决于比例)。
该描述用于测试两个 SIFT 特征是否描述同一位置。
SIFT is a short cut for "Scale Invariant Feature Transform".
SIFT features are often used to locate descriptive points in images.
For image stitching SIFT features are located in two images. Then you look for similar points / features in both images. If enough correspondences are found and the images contain some common part.
SIFT features have a location in an image, in addition the feature contains a rough description of nearby area of the image (the size of this area depends on the scale).
This description is used test if two SIFT features are describing the same location.