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libvot
0.1.3
A C++11 multithread library for image retrieval
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The vocabulary tree class. The depth of the root is 0. The depth of the leaf nodes is depth+1. More...
#include <vocab_tree.h>
Public Member Functions | |
| VocabTree () | |
| VocabTree (int depth_, int branch_num_, int dim_=128, DistanceType dis_type_=L2) | |
| ~VocabTree () | |
| bool | BuildTree (size_t num_keys, int dim, int depth, int bf, DTYPE **p, int thread_num=1) |
| build a vocabulary tree from a set of features More... | |
| bool | WriteTree (const char *filename) const |
| save the vocabulary tree in a file More... | |
| bool | ReadTree (const char *filename) |
| read a vocabulary tree from a file More... | |
| bool | ClearTree () |
| release the memory More... | |
| bool | Compare (VocabTree &v) const |
| compare two vocabulary tree and returns whether they are the same More... | |
| double | AddImage2Tree (size_t image_index, tw::SiftData &sift, int thread_num) |
| add an image into the database (support multi-thread) More... | |
| void | Show () const |
| a test function More... | |
| bool | SetConstantWeight () |
| set a constant weight to the leaf nodes More... | |
| bool | ComputeTFIDFWeight (size_t image_num) |
| compute TF-IDF weight and pre-apply weight adjusting to inverted lists More... | |
| bool | NormalizeDatabase (size_t start_id, size_t image_num) |
| normalize the inverted list score by the magnitude of image vector More... | |
| bool | Query (tw::SiftData &sift, float *scores) |
| query database and return the scores More... | |
| size_t | IndexLeaves () |
| index the leaf nodes More... | |
Public Attributes | |
| int | branch_num |
| the branch number of a node More... | |
| int | depth |
| the depth of the tree More... | |
| int | dim |
| the dimension of the descriptor More... | |
| size_t | database_image_num |
| the number of the database images More... | |
| size_t | num_nodes |
| the number of nodes in the tree More... | |
| size_t | num_leaves |
| the number of leaf nodes in the tree More... | |
| DistanceType | dis_type |
| the distance type More... | |
| TreeNode * | root |
| the root of the tree More... | |
The vocabulary tree class. The depth of the root is 0. The depth of the leaf nodes is depth+1.
| vot::VocabTree::VocabTree | ( | ) |
VocabTree Class Implementation
| vot::VocabTree::VocabTree | ( | int | depth_, |
| int | branch_num_, | ||
| int | dim_ = 128, |
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| DistanceType | dis_type_ = L2 |
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| ) |
| vot::VocabTree::~VocabTree | ( | ) |
| double vot::VocabTree::AddImage2Tree | ( | size_t | image_index, |
| tw::SiftData & | sift, | ||
| int | thread_num | ||
| ) |
add an image into the database (support multi-thread)
| bool vot::VocabTree::BuildTree | ( | size_t | num_keys, |
| int | dim, | ||
| int | depth, | ||
| int | bf, | ||
| DTYPE ** | p, | ||
| int | thread_num = 1 |
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| ) |
build a vocabulary tree from a set of features
| bool vot::VocabTree::ClearTree | ( | ) |
release the memory
| bool vot::VocabTree::Compare | ( | VocabTree & | v | ) | const |
compare two vocabulary tree and returns whether they are the same
| bool vot::VocabTree::ComputeTFIDFWeight | ( | size_t | image_num | ) |
compute TF-IDF weight and pre-apply weight adjusting to inverted lists
| size_t vot::VocabTree::IndexLeaves | ( | ) |
index the leaf nodes
| bool vot::VocabTree::NormalizeDatabase | ( | size_t | start_id, |
| size_t | image_num | ||
| ) |
normalize the inverted list score by the magnitude of image vector
| bool vot::VocabTree::Query | ( | tw::SiftData & | sift, |
| float * | scores | ||
| ) |
query database and return the scores
| bool vot::VocabTree::ReadTree | ( | const char * | filename | ) |
read a vocabulary tree from a file
| bool vot::VocabTree::SetConstantWeight | ( | ) |
set a constant weight to the leaf nodes
| void vot::VocabTree::Show | ( | ) | const |
a test function
| bool vot::VocabTree::WriteTree | ( | const char * | filename | ) | const |
save the vocabulary tree in a file
| int vot::VocabTree::branch_num |
the branch number of a node
| size_t vot::VocabTree::database_image_num |
the number of the database images
| int vot::VocabTree::depth |
the depth of the tree
| int vot::VocabTree::dim |
the dimension of the descriptor
| DistanceType vot::VocabTree::dis_type |
the distance type
| size_t vot::VocabTree::num_leaves |
the number of leaf nodes in the tree
| size_t vot::VocabTree::num_nodes |
the number of nodes in the tree
| TreeNode* vot::VocabTree::root |
the root of the tree
1.8.9.1
