Difference between revisions of "Local Features"
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|description=Helpful resources for your journey with artificial intelligence; videos, articles, techniques, courses, profiles, and tools | |description=Helpful resources for your journey with artificial intelligence; videos, articles, techniques, courses, profiles, and tools | ||
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| − | [ | + | [https://www.youtube.com/results?search_query=Local+Features+machine+learning+artificial+intelligence YouTube search...] |
| − | [ | + | [https://www.google.com/search?q=Local+Features+machine+learning+artificial+intelligence ...Google search] |
* [[Deep Features]] | * [[Deep Features]] | ||
| + | * [[Attention]] Mechanism ...[[Transformer]] ...[[Generative Pre-trained Transformer (GPT)]] ... [[Generative Adversarial Network (GAN)|GAN]] ... [[Bidirectional Encoder Representations from Transformers (BERT)|BERT]] | ||
| + | * [[Vision]] | ||
| + | * [https://openreview.net/forum?id=SkfMWhAqYQ Approximating CNNs with Bag-of-local-Features models works surprisingly well on ImageNet | Wieland Brendel, Matthias Bethge] | ||
| + | * [https://www.semanticscholar.org/paper/Image-Retrieval-with-Deep-Local-Features-and-Noh-Araujo/0e04af52fc230986064994d47207074fe1bccaf2 Image Retrieval with Deep Local Features and Attention-based Keypoints | H. Noh, A. Araujo, and B Han] DELF (DEep Local Feature) | ||
| − | <youtube> | + | Local features refer to a pattern or distinct structure found in an image, such as a point, edge, or small image patch. They are usually associated with an image patch that differs from its immediate surroundings by texture, color, or intensity. []https://www.mathworks.com/help/vision/ug/local-feature-detection-and-extraction.html Local Feature Detection and Extraction | MathWorks] |
| + | |||
| + | https://opencv-python-tutroals.readthedocs.io/en/latest/_images/sift_scale_invariant.jpg | ||
| + | |||
| + | <youtube>dlqn-wPvjxg</youtube> | ||
| + | <youtube>c3IRD4P2EnA</youtube> | ||
| + | |||
| + | == SIFT == | ||
| + | |||
| + | So, in 2004, D.Lowe, University of British Columbia, came up with a new algorithm, Scale Invariant Feature Transform (SIFT) in his paper, Distinctive Image Features from Scale-Invariant Keypoints, which extract keypoints and compute its descriptors. (This paper is easy to understand and considered to be best material available on SIFT. So this explanation is just a short summary of this paper). [https://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_feature2d/py_sift_intro/py_sift_intro.html Introduction to SIFT (Scale-Invariant Feature Transform) | OpenCV] | ||
| + | |||
| + | <youtube>NPcMS49V5hg</youtube> | ||
| + | |||
| + | == LF-Net == | ||
| + | LF-Net has two main components. The first one is a dense, multi-scale, fully convolutional network that returns keypoint locations, scales, and orientations. It is designed to achieve fast inference time, and to be agnostic to image size. The second is a network that outputs local descriptors given patches cropped around the keypoints produced by the first network. We call them detector and descriptor. ...presented a novel deep architecture and a training strategy to learn a local feature pipeline from scratch, using collections of images without the need for human supervision ... propose a sparse-matching method with a novel deep architecture, which we name LF-Net, for Local Feature Network, that is trainable end-to-end and does not require using a hand-crafted detector to generate training data. ...local features have played a crucial role in computer vision, becoming the de facto standard for wide-baseline image matching https://papers.nips.cc/paper/7861-lf-net-learning-local-features-from-images.pdf | Y. Ono, E. Trulls, P Fua, and K.Yi] | ||
Latest revision as of 12:41, 3 May 2023
YouTube search... ...Google search
- Deep Features
- Attention Mechanism ...Transformer ...Generative Pre-trained Transformer (GPT) ... GAN ... BERT
- Vision
- Approximating CNNs with Bag-of-local-Features models works surprisingly well on ImageNet | Wieland Brendel, Matthias Bethge
- Image Retrieval with Deep Local Features and Attention-based Keypoints | H. Noh, A. Araujo, and B Han DELF (DEep Local Feature)
Local features refer to a pattern or distinct structure found in an image, such as a point, edge, or small image patch. They are usually associated with an image patch that differs from its immediate surroundings by texture, color, or intensity. []https://www.mathworks.com/help/vision/ug/local-feature-detection-and-extraction.html Local Feature Detection and Extraction | MathWorks]
SIFT
So, in 2004, D.Lowe, University of British Columbia, came up with a new algorithm, Scale Invariant Feature Transform (SIFT) in his paper, Distinctive Image Features from Scale-Invariant Keypoints, which extract keypoints and compute its descriptors. (This paper is easy to understand and considered to be best material available on SIFT. So this explanation is just a short summary of this paper). Introduction to SIFT (Scale-Invariant Feature Transform) | OpenCV
LF-Net
LF-Net has two main components. The first one is a dense, multi-scale, fully convolutional network that returns keypoint locations, scales, and orientations. It is designed to achieve fast inference time, and to be agnostic to image size. The second is a network that outputs local descriptors given patches cropped around the keypoints produced by the first network. We call them detector and descriptor. ...presented a novel deep architecture and a training strategy to learn a local feature pipeline from scratch, using collections of images without the need for human supervision ... propose a sparse-matching method with a novel deep architecture, which we name LF-Net, for Local Feature Network, that is trainable end-to-end and does not require using a hand-crafted detector to generate training data. ...local features have played a crucial role in computer vision, becoming the de facto standard for wide-baseline image matching https://papers.nips.cc/paper/7861-lf-net-learning-local-features-from-images.pdf | Y. Ono, E. Trulls, P Fua, and K.Yi]
