- SIFT  [Demo program][SIFT Library] [VLFeat]
- PCA-SIFT  [Project]
- Affine-SIFT  [Project]
- SURF  [OpenSURF] [Matlab Wrapper]
- Affine Covariant Features  [Oxford project]
- MSER  [Oxford project] [VLFeat]
- Geometric Blur  [Code]
- Local Self-Similarity Descriptor  [Oxford implementation]
- Global and Efficient Self-Similarity  [Code]
- Histogram of Oriented Graidents  [INRIA Object Localization Toolkit] [OLT toolkit for Windows]
- GIST  [Project]
- Shape Context  [Project]
- Color Descriptor  [Project]
- Pyramids of Histograms of Oriented Gradients [Code]
- Space-Time Interest Points (STIP) [Project] [Code]
- Boundary Preserving Dense Local Regions [Project]
- Weighted Histogram[Code]
- Histogram-based Interest Points Detectors[Paper][Code]
- An OpenCV - C++ implementation of Local Self Similarity Descriptors [Project]
- Fast Sparse Representation with Prototypes[Project]
- Corner Detection [Project]
- AGAST Corner Detector: faster than FAST and even FAST-ER[Project]
- Real-time Facial Feature Detection using Conditional Regression Forests[Project]
- Global and Efficient Self-Similarity for Object Classification and Detection[code]
- WαSH: Weighted α-Shapes for Local Feature Detection[Project]
- Online Selection of Discriminative Tracking Features[Project]
- Normalized Cut  [Matlab code]
- Gerg Mori’ Superpixel code  [Matlab code]
- Efficient Graph-based Image Segmentation  [C++ code] [Matlab wrapper]
- Mean-Shift Image Segmentation  [EDISON C++ code] [Matlab wrapper]
- OWT-UCM Hierarchical Segmentation  [Resources]
- Turbepixels  [Matlab code 32bit] [Matlab code 64bit] [Updated code]
- Quick-Shift  [VLFeat]
- SLIC Superpixels  [Project]
- Segmentation by Minimum Code Length  [Project]
- Biased Normalized Cut  [Project]
- Segmentation Tree [11-12] [Project]
- Entropy Rate Superpixel Segmentation  [Code]
- Fast Approximate Energy Minimization via Graph Cuts[Paper][Code]
- Efﬁcient Planar Graph Cuts with Applications in Computer Vision[Paper][Code]
- Isoperimetric Graph Partitioning for Image Segmentation[Paper][Code]
- Random Walks for Image Segmentation[Paper][Code]
- Blossom V: A new implementation of a minimum cost perfect matching algorithm[Code]
- An Experimental Comparison of Min-Cut/Max-Flow Algorithms for Energy Minimization in Computer Vision[Paper][Code]
- Geodesic Star Convexity for Interactive Image Segmentation[Project]
- Contour Detection and Image Segmentation Resources[Project][Code]
- Biased Normalized Cuts[Project]
- Chan-Vese Segmentation using Level Set[Project]
- A Toolbox of Level Set Methods[Project]
- Re-initialization Free Level Set Evolution via Reaction Diffusion[Project]
- Improved C-V active contour model[Paper][Code]
- A Variational Multiphase Level Set Approach to Simultaneous Segmentation and Bias Correction[Paper][Code]
- Level Set Method Research by Chunming Li[Project]
- ClassCut for Unsupervised Class Segmentation[code]
- SEEDS: Superpixels Extracted via Energy-Driven Sampling [Project][other]
- A simple object detector with boosting [Project]
- INRIA Object Detection and Localization Toolkit  [Project]
- Discriminatively Trained Deformable Part Models  [Project]
- Cascade Object Detection with Deformable Part Models  [Project]
- Poselet  [Project]
- Implicit Shape Model  [Project]
- Viola and Jones’s Face Detection  [Project]
- Bayesian Modelling of Dyanmic Scenes for Object Detection[Paper][Code]
- Hand detection using multiple proposals[Project]
- Color Constancy, Intrinsic Images, and Shape Estimation[Paper][Code]
- Discriminatively trained deformable part models[Project]
- Gradient Response Maps for Real-Time Detection of Texture-Less Objects: LineMOD [Project]
- Image Processing On Line[Project]
- Robust Optical Flow Estimation[Project]
- Where's Waldo: Matching People in Images of Crowds[Project]
- Scalable Multi-class Object Detection[Project]
- Class-Specific Hough Forests for Object Detection[Project]
- Deformed Lattice Detection In Real-World Images[Project]
- Discriminatively trained deformable part models[Project]
- Itti, Koch, and Niebur’ saliency detection  [Matlab code]
- Frequency-tuned salient region detection  [Project]
- Saliency detection using maximum symmetric surround  [Project]
- Attention via Information Maximization  [Matlab code]
- Context-aware saliency detection  [Matlab code]
- Graph-based visual saliency  [Matlab code]
- Saliency detection: A spectral residual approach.  [Matlab code]
- Segmenting salient objects from images and videos.  [Matlab code]
- Saliency Using Natural statistics.  [Matlab code]
- Discriminant Saliency for Visual Recognition from Cluttered Scenes.  [Code]
- Learning to Predict Where Humans Look  [Project]
- Global Contrast based Salient Region Detection  [Project]
- Bayesian Saliency via Low and Mid Level Cues[Project]
- Top-Down Visual Saliency via Joint CRF and Dictionary Learning[Paper][Code]
- Saliency Detection: A Spectral Residual Approach[Code]
五、图像分类、聚类Image Classification, Clustering
- Pyramid Match  [Project]
- Spatial Pyramid Matching  [Code]
- Locality-constrained Linear Coding  [Project] [Matlab code]
- Sparse Coding  [Project] [Matlab code]
- Texture Classification  [Project]
- Multiple Kernels for Image Classification  [Project]
- Feature Combination  [Project]
- SuperParsing [Code]
- Large Scale Correlation Clustering Optimization[Matlab code]
- Detecting and Sketching the Common[Project]
- Self-Tuning Spectral Clustering[Project][Code]
- User Assisted Separation of Reflections from a Single Image Using a Sparsity Prior[Paper][Code]
- Filters for Texture Classification[Project]
- Multiple Kernel Learning for Image Classification[Project]
- SLIC Superpixels[Project]
- A Closed Form Solution to Natural Image Matting [Code]
- Spectral Matting [Project]
- Learning-based Matting [Code]
- A Forest of Sensors - Tracking Adaptive Background Mixture Models [Project]
- Object Tracking via Partial Least Squares Analysis[Paper][Code]
- Robust Object Tracking with Online Multiple Instance Learning[Paper][Code]
- Online Visual Tracking with Histograms and Articulating Blocks[Project]
- Incremental Learning for Robust Visual Tracking[Project]
- Real-time Compressive Tracking[Project]
- Robust Object Tracking via Sparsity-based Collaborative Model[Project]
- Visual Tracking via Adaptive Structural Local Sparse Appearance Model[Project]
- Online Discriminative Object Tracking with Local Sparse Representation[Paper][Code]
- Superpixel Tracking[Project]
- Learning Hierarchical Image Representation with Sparsity, Saliency and Locality[Paper][Code]
- Online Multiple Support Instance Tracking [Paper][Code]
- Visual Tracking with Online Multiple Instance Learning[Project]
- Object detection and recognition[Project]
- Compressive Sensing Resources[Project]
- Robust Real-Time Visual Tracking using Pixel-Wise Posteriors[Project]
- Tracking-Learning-Detection[Project][OpenTLD/C++ Code]
- the HandVu：vision-based hand gesture interface[Project]
- Learning Probabilistic Non-Linear Latent Variable Models for Tracking Complex Activities[Project]
- 3D Reconstruction of a Moving Object[Paper] [Code]
- Shape From Shading Using Linear Approximation[Code]
- Combining Shape from Shading and Stereo Depth Maps[Project][Code]
- Shape from Shading: A Survey[Paper][Code]
- A Spatio-Temporal Descriptor based on 3D Gradients (HOG3D)[Project][Code]
- Multi-camera Scene Reconstruction via Graph Cuts[Paper][Code]
- A Fast Marching Formulation of Perspective Shape from Shading under Frontal Illumination[Paper][Code]
- Reconstruction:3D Shape, Illumination, Shading, Reflectance, Texture[Project]
- Monocular Tracking of 3D Human Motion with a Coordinated Mixture of Factor Analyzers[Code]
- Learning 3-D Scene Structure from a Single Still Image[Project]
- Matlab class for computing Approximate Nearest Nieghbor (ANN) [Matlab class providing interface toANN library]
- Random Sampling[code]
- Probabilistic Latent Semantic Analysis (pLSA)[Code]
- FASTANN and FASTCLUSTER for approximate k-means (AKM)[Project]
- Fast Intersection / Additive Kernel SVMs[Project]
- Ensemble learning[Project]
- Deep Learning[Net]
- Deep Learning Methods for Vision[Project]
- Neural Network for Recognition of Handwritten Digits[Project]
- Training a deep autoencoder or a classifier on MNIST digits[Project]
- THE MNIST DATABASE of handwritten digits[Project]
- Ersatz：deep neural networks in the cloud[Project]
- Deep Learning [Project]
- sparseLM : Sparse Levenberg-Marquardt nonlinear least squares in C/C++[Project]
- Weka 3: Data Mining Software in Java[Project]
- Invited talk "A Tutorial on Deep Learning" by Dr. Kai Yu (余凯)[Video]
- CNN - Convolutional neural network class[Matlab Tool]
- Yann LeCun's Publications[Wedsite]
- LeNet-5, convolutional neural networks[Project]
- Training a deep autoencoder or a classifier on MNIST digits[Project]
- Deep Learning 大牛Geoffrey E. Hinton's HomePage[Website]
- Multiple Instance Logistic Discriminant-based Metric Learning (MildML) and Logistic Discriminant-based Metric Learning (LDML)[Code]
- Sparse coding simulation software[Project]
- Visual Recognition and Machine Learning Summer School[Software]
十一、目标、行为识别Object, Action Recognition：
- Action Recognition by Dense Trajectories[Project][Code]
- Action Recognition Using a Distributed Representation of Pose and Appearance[Project]
- Recognition Using Regions[Paper][Code]
- 2D Articulated Human Pose Estimation[Project]
- Fast Human Pose Estimation Using Appearance and Motion via Multi-Dimensional Boosting Regression[Paper][Code]
- Estimating Human Pose from Occluded Images[Paper][Code]
- Quasi-dense wide baseline matching[Project]
- ChaLearn Gesture Challenge: Principal motion: PCA-based reconstruction of motion histograms[Project]
- Real Time Head Pose Estimation with Random Regression Forests[Project]
- 2D Action Recognition Serves 3D Human Pose Estimation[Project]
- A Hough Transform-Based Voting Framework for Action Recognition[Project]
- Motion Interchange Patterns for Action Recognition in Unconstrained Videos[Project]
- 2D articulated human pose estimation software[Project]
- Learning and detecting shape models [code]
- Progressive Search Space Reduction for Human Pose Estimation[Project]
- Learning Non-Rigid 3D Shape from 2D Motion[Project]
- Distance Transforms of Sampled Functions[Project]
- The Computer Vision Homepage[Project]
- Efficient appearance distances between windows[code]
- Image Exploration algorithm[code]
- Motion Magnification 运动放大 [Project]
- Bilateral Filtering for Gray and Color Images 双边滤波器 [Project]
- A Fast Approximation of the Bilateral Filter using a Signal Processing Approach [Project]
- EGT: a Toolbox for Multiple View Geometry and Visual Servoing[Project] [Code]
- a development kit of matlab mex functions for OpenCV library[Project]
- Fast Artificial Neural Network Library[Project]
- finger-detection-and-gesture-recognition [Code]
- Hand and Finger Detection using JavaCV[Project]
- Hand and fingers detection[Code]
- Nonparametric Scene Parsing via Label Transfer [Project]
- High accuracy optical flow using a theory for warping [Project]
- Dense Trajectories Video Description [Project]
- SIFT Flow: Dense Correspondence across Scenes and its Applications[Project]
- KLT: An Implementation of the Kanade-Lucas-Tomasi Feature Tracker [Project]
- Tracking Cars Using Optical Flow[Project]
- Secrets of optical flow estimation and their principles[Project]
- implmentation of the Black and Anandan dense optical flow method[Project]
- Optical Flow Computation[Project]
- Beyond Pixels: Exploring New Representations and Applications for Motion Analysis[Project]
- A Database and Evaluation Methodology for Optical Flow[Project]
- optical flow relative[Project]
- Robust Optical Flow Estimation [Project]
- optical flow[Project]
十八、马尔科夫随机场Markov Random Fields：
- Markov Random Fields for Super-Resolution [Project]
- A Comparative Study of Energy Minimization Methods for Markov Random Fields with Smoothness-Based Priors [Project]
- Moving Object Extraction, Using Models or Analysis of Regions [Project]
- Background Subtraction: Experiments and Improvements for ViBe [Project]
- A Self-Organizing Approach to Background Subtraction for Visual Surveillance Applications [Project]
- changedetection.net: A new change detection benchmark dataset[Project]
- ViBe - a powerful technique for background detection and subtraction in video sequences[Project]
- Background Subtraction Program[Project]
- Motion Detection Algorithms[Project]
- Stuttgart Artificial Background Subtraction Dataset[Project]
- Object Detection, Motion Estimation, and Tracking[Project]
Feature Detection and Description
- VLFeat – Implementation of various feature descriptors (including SIFT, HOG, and LBP) and covariant feature detectors (including DoG, Hessian, Harris Laplace, Hessian Laplace, Multiscale Hessian, Multiscale Harris). Easy-to-use Matlab interface. See Modern features: Software – Slides providing a demonstration of VLFeat and also links to other software. Check also VLFeat hands-on session training
- OpenCV – Various implementations of modern feature detectors and descriptors (SIFT, SURF, FAST, BRIEF, ORB, FREAK, etc.)
Fast Keypoint Detectors for Real-time Applications:
- FAST – High-speed corner detector implementation for a wide variety of platforms
- AGAST – Even faster than the FAST corner detector. A multi-scale version of this method is used for the BRISK descriptor (ECCV 2010).
Binary Descriptors for Real-Time Applications:
- BRIEF – C++ code for a fast and accurate interest point descriptor (not invariant to rotations and scale) (ECCV 2010)
- ORB – OpenCV implementation of the Oriented-Brief (ORB) descriptor (invariant to rotations, but not scale)
- BRISK – Efficient Binary descriptor invariant to rotations and scale. It includes a Matlab mex interface. (ICCV 2011)
- FREAK – Faster than BRISK (invariant to rotations and scale) (CVPR 2012)
SIFT and SURF Implementations:
- SIFT: VLFeat, OpenCV, Original code by David Lowe, GPU implementation, OpenSIFT
- SURF: Herbert Bay’s code, OpenCV, GPU-SURF
Other Local Feature Detectors and Descriptors:
- VGG Affine Covariant features – Oxford code for various affine covariant feature detectors and descriptors.
- LIOP descriptor – Source code for the Local Intensity order Pattern (LIOP) descriptor (ICCV 2011).
- Local Symmetry Features – Source code for matching of local symmetry features under large variations in lighting, age, and rendering style (CVPR 2012).
Global Image Descriptors:
- GIST – Matlab code for the GIST descriptor
- CENTRIST – Global visual descriptor for scene categorization and object detection (PAMI 2011)
Feature Coding and Pooling
- VGG Feature Encoding Toolkit – Source code for various state-of-the-art feature encoding methods – including Standard hard encoding, Kernel codebook encoding, Locality-constrained linear encoding, and Fisher kernel encoding.
- Spatial Pyramid Matching – Source code for feature pooling based on spatial pyramid matching (widely used for image classification)
Convolutional Nets and Deep Learning
- EBLearn – C++ Library for Energy-Based Learning. It includes several demos and step-by-step instructions to train classifiers based on convolutional neural networks.
- Torch7 – Provides a matlab-like environment for state-of-the-art machine learning algorithms, including a fast implementation of convolutional neural networks.
- Deep Learning - Various links for deep learning software.
- Deformable Part-based Detector – Library provided by the authors of the original paper (state-of-the-art in PASCAL VOC detection task)
- Efficient Deformable Part-Based Detector – Branch-and-Bound implementation for a deformable part-based detector.
- Accelerated Deformable Part Model – Efficient implementation of a method that achieves the exact same performance of deformable part-based detectors but with significant acceleration (ECCV 2012).
- Coarse-to-Fine Deformable Part Model – Fast approach for deformable object detection (CVPR 2011).
- Poselets – C++ and Matlab versions for object detection based on poselets.
- Part-based Face Detector and Pose Estimation – Implementation of a unified approach for face detection, pose estimation, and landmark localization (CVPR 2012).
Attributes and Semantic Features
- Relative Attributes – Modified implementation of RankSVM to train Relative Attributes (ICCV 2011).
- Object Bank – Implementation of object bank semantic features (NIPS 2010). See also ActionBank
- Classemes, Picodes, and Meta-class features – Software for extracting high-level image descriptors (ECCV 2010, NIPS 2011, CVPR 2012).
- Additive Kernels – Source code for fast additive kernel SVM classifiers (PAMI 2013).
- LIBLINEAR – Library for large-scale linear SVM classification.
- VLFeat – Implementation for Pegasos SVM and Homogeneous Kernel map.
Fast Indexing and Image Retrieval
- FLANN – Library for performing fast approximate nearest neighbor.
- Kernelized LSH – Source code for Kernelized Locality-Sensitive Hashing (ICCV 2009).
- ITQ Binary codes – Code for generation of small binary codes using Iterative Quantization and other baselines such as Locality-Sensitive-Hashing (CVPR 2011).
- INRIA Image Retrieval – Efficient code for state-of-the-art large-scale image retrieval (CVPR 2011).
- See Part-based Models and Convolutional Nets above.
- Pedestrian Detection at 100fps – Very fast and accurate pedestrian detector (CVPR 2012).
- Caltech Pedestrian Detection Benchmark – Excellent resource for pedestrian detection, with various links for state-of-the-art implementations.
- OpenCV – Enhanced implementation of Viola&Jones real-time object detector, with trained models for face detection.
- Efficient Subwindow Search – Source code for branch-and-bound optimization for efficient object localization (CVPR 2008).
- Point-Cloud Library – Library for 3D image and point cloud processing.
- ActionBank – Source code for action recognition based on the ActionBank representation (CVPR 2012).
- STIP Features – software for computing space-time interest point descriptors
- Independent Subspace Analysis – Look for Stacked ISA for Videos (CVPR 2011)
- Velocity Histories of Tracked Keypoints - C++ code for activity recognition using the velocity histories of tracked keypoints (ICCV 2009)
- Animals with Attributes – 30,475 images of 50 animals classes with 6 pre-extracted feature representations for each image.
- aYahoo and aPascal – Attribute annotations for images collected from Yahoo and Pascal VOC 2008.
- FaceTracer – 15,000 faces annotated with 10 attributes and fiducial points.
- PubFig – 58,797 face images of 200 people with 73 attribute classifier outputs.
- LFW – 13,233 face images of 5,749 people with 73 attribute classifier outputs.
- Human Attributes – 8,000 people with annotated attributes. Check also this link for another dataset of human attributes.
- SUN Attribute Database – Large-scale scene attribute database with a taxonomy of 102 attributes.
- ImageNet Attributes – Variety of attribute labels for the ImageNet dataset.
- Relative attributes – Data for OSR and a subset of PubFig datasets. Check also this link for the WhittleSearch data.
- Attribute Discovery Dataset – Images of shopping categories associated with textual descriptions.
Fine-grained Visual Categorization
- Caltech-UCSD Birds Dataset – Hundreds of bird categories with annotated parts and attributes.
- Stanford Dogs Dataset – 20,000 images of 120 breeds of dogs from around the world.
- Oxford-IIIT Pet Dataset – 37 category pet dataset with roughly 200 images for each class. Pixel level trimap segmentation is included.
- Leeds Butterfly Dataset – 832 images of 10 species of butterflies.
- Oxford Flower Dataset – Hundreds of flower categories.
- FDDB – UMass face detection dataset and benchmark (5,000+ faces)
- CMU/MIT – Classical face detection dataset.
- Face Recognition Homepage – Large collection of face recognition datasets.
- LFW – UMass unconstrained face recognition dataset (13,000+ face images).
- NIST Face Homepage – includes face recognition grand challenge (FRGC), vendor tests (FRVT) and others.
- CMU Multi-PIE – contains more than 750,000 images of 337 people, with 15 different views and 19 lighting conditions.
- FERET – Classical face recognition dataset.
- Deng Cai’s face dataset in Matlab Format – Easy to use if you want play with simple face datasets including Yale, ORL, PIE, and Extended Yale B.
- SCFace – Low-resolution face dataset captured from surveillance cameras.
- MNIST – large dataset containing a training set of 60,000 examples, and a test set of 10,000 examples.
- Caltech Pedestrian Detection Benchmark – 10 hours of video taken from a vehicle,350K bounding boxes for about 2.3K unique pedestrians.
- INRIA Person Dataset – Currently one of the most popular pedestrian detection datasets.
- ETH Pedestrian Dataset – Urban dataset captured from a stereo rig mounted on a stroller.
- TUD-Brussels Pedestrian Dataset – Dataset with image pairs recorded in an crowded urban setting with an onboard camera.
- PASCAL Human Detection – One of 20 categories in PASCAL VOC detection challenges.
- USC Pedestrian Dataset – Small dataset captured from surveillance cameras.
Generic Object Recognition
- ImageNet – Currently the largest visual recognition dataset in terms of number of categories and images.
- Tiny Images – 80 million 32x32 low resolution images.
- Pascal VOC – One of the most influential visual recognition datasets.
- Caltech 101 / Caltech 256 – Popular image datasets containing 101 and 256 object categories, respectively.
- MIT LabelMe – Online annotation tool for building computer vision databases.
- MIT SUN Dataset – MIT scene understanding dataset.
- UIUC Fifteen Scene Categories – Dataset of 15 natural scene categories.
Feature Detection and Description
- VGG Affine Dataset – Widely used dataset for measuring performance of feature detection and description. CheckVLBenchmarks for an evaluation framework.
- Benchmarking Activity Recognition – CVPR 2012 tutorial covering various datasets for action recognition.
- RGB-D Object Dataset – Dataset containing 300 common household objects