| Face Engine SDK 5.7.0 A face detection, recognition and tracking engine.

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IIndex.h
1 #pragma once
2
3 #include "IAsyncContext.h"
4 #include "IDescriptor.h"
5
6 namespace fsdk {
7
8 #ifndef DOXYGEN_SHOULD_SKIP_THIS
9 DECLARE_SMARTPTR(IStaticDescriptorStorage);
10 DECLARE_SMARTPTR(IDynamicDescriptorStorage);
11 DECLARE_SMARTPTR(IIndex);
12 DECLARE_SMARTPTR(IDenseIndex);
13 DECLARE_SMARTPTR(IDynamicIndex);
14 DECLARE_SMARTPTR(IIndexBuilder);
15 #endif
16
18 using DescriptorId = size_t;
19
23 struct SearchResult : MatchingResult {
25 DescriptorId index;
26
28 SearchResult() noexcept
29 : MatchingResult()
30 , index(std::numeric_limits<DescriptorId>::max())
31 {}
32
39 SearchResult(
40 float distance,
41 float similarity,
42 DescriptorId index) noexcept
43 : MatchingResult(distance, similarity)
44 , index(index)
45 {}
46 };
47
52 struct IStaticDescriptorStorage {
63 virtual Result<FSDKError> descriptorByIndex(
64 const DescriptorId index,
65 IDescriptor* descriptor) const noexcept = 0;
66
71 virtual uint32_t getDescriptorVersion() const noexcept = 0;
72
77 virtual uint64_t size() const noexcept = 0;
78 };
79
84 struct IDynamicDescriptorStorage
85 : IStaticDescriptorStorage {
97 virtual ResultValue<FSDKError, DescriptorId> appendDescriptor(
98 const IDescriptor* descriptor) noexcept = 0;
99
112 virtual ResultValue<FSDKError, DescriptorId> appendBatch(
113 const IDescriptorBatch* batch) noexcept = 0;
114
130 virtual Result<FSDKError> removeDescriptor(const DescriptorId index) noexcept = 0;
131 };
132
137 struct IIndex
138 : IRefCounted {
149 virtual ResultValue<FSDKError, int> search(
150 const IDescriptor* reference,
151 int maxResultsCount,
152 SearchResult* results) const noexcept = 0;
153 };
154
158 struct IDenseIndex
159 : IStaticDescriptorStorage
160 , IIndex {
161
162 };
163
167 struct IDynamicIndex
168 : IDynamicDescriptorStorage
169 , IIndex {
179 virtual Result<FSDKError> saveToDenseIndex(const char* path) const noexcept = 0;
180
190 virtual Result<FSDKError> saveToDynamicIndex(const char* path) const noexcept = 0;
191
205 virtual uint64_t countOfIndexedDescriptors() const noexcept = 0;
206 };
207
212 struct IProgressTracker {
217 virtual void progress(const float completion) const noexcept = 0;
218 };
219
223 struct IIndexBuilder
224 : IDynamicDescriptorStorage
225 , IRefCounted {
234 virtual ResultValue<FSDKError, IDynamicIndex*> buildIndex(
235 const IProgressTracker* const progressTracker = nullptr) noexcept = 0;
236
246 virtual ResultValue<FSDKError, Future<ResultValue<FSDKError, IDynamicIndex*>>>
247 buildIndexAsync(
248 IAsyncContext* const asyncContext,
249 const IProgressTracker* const progressTracker = nullptr) noexcept = 0;
250 };
251
252
253 }
254
fsdk::IDynamicDescriptorStorage::appendDescriptor
virtual ResultValue< FSDKError, DescriptorId > appendDescriptor(const IDescriptor *descriptor) noexcept=0
Appends descriptor to internal storage. If used on.
DECLARE_SMARTPTR
#define DECLARE_SMARTPTR(X)
Smart ptr declaration helper macro.
Definition: Def.h:59
fsdk::IStaticDescriptorStorage::getDescriptorVersion
virtual uint32_t getDescriptorVersion() const noexcept=0
Return version of stored descriptors.
fsdk::IDynamicDescriptorStorage::removeDescriptor
virtual Result< FSDKError > removeDescriptor(const DescriptorId index) noexcept=0
Removes descriptor out of internal storage. If used on.
fsdk::IDynamicIndex::saveToDenseIndex
virtual Result< FSDKError > saveToDenseIndex(const char *path) const noexcept=0
Saves index as dense.
fsdk::Result
A structure that encapsulates an action result enumeration.
Definition: Result.h:29
fsdk::IIndex
Base index interface.
Definition: IIndex.h:137
fsdk::IProgressTracker
Progress tracker interface.
Definition: IIndex.h:212
fsdk::SearchResult
Result of index search.
Definition: IIndex.h:23
fsdk::IDescriptorBatch
Descriptor batch interface.
Definition: IDescriptor.h:139
fsdk::IIndexBuilder::buildIndexAsync
virtual ResultValue< FSDKError, Future< ResultValue< FSDKError, IDynamicIndex * > > > buildIndexAsync(IAsyncContext *const asyncContext, const IProgressTracker *const progressTracker=nullptr) noexcept=0
Builds index with every descriptor appended. Non blocking operation.
fsdk::IStaticDescriptorStorage::size
virtual uint64_t size() const noexcept=0
Return size of internal storage.
fsdk::IDynamicIndex::countOfIndexedDescriptors
virtual uint64_t countOfIndexedDescriptors() const noexcept=0
Returns count of indexed descriptors.
fsdk::IRefCounted
Base strong reference counted object interface.
Definition: IRefCounted.h:36
fsdk::IAsyncContext
Interface for running tasks asynchronously.
Definition: IAsyncContext.h:24
fsdk::SearchResult::SearchResult
SearchResult() noexcept
Default constructor.
Definition: IIndex.h:28
fsdk::IStaticDescriptorStorage::descriptorByIndex
virtual Result< FSDKError > descriptorByIndex(const DescriptorId index, IDescriptor *descriptor) const noexcept=0
Requests descriptor data out of internal storage.
IDescriptor.h
Descriptor extractor and matcher interfaces.
fsdk::MatchingResult::similarity
float similarity
similarity (normalized in [0..1] range).
Definition: IDescriptor.h:36
fsdk::IDynamicIndex
Dynamic index interface.
Definition: IIndex.h:167
fsdk::DescriptorId
size_t DescriptorId
Intergral type used as identification of descriptor in internal storage.
Definition: IIndex.h:18
fsdk::IDynamicIndex::saveToDynamicIndex
virtual Result< FSDKError > saveToDynamicIndex(const char *path) const noexcept=0
Saves index as dynamic.
fsdk::ResultValue
Addon for Result to output some value aside the result. Specialization for copiable types...
Definition: ResultValue.h:25
fsdk::MatchingResult::MatchingResult
MatchingResult(void) noexcept
Initializes result to default values.
Definition: IDescriptor.h:41
IAsyncContext.h
Async context interface.
fsdk::SearchResult::SearchResult
SearchResult(float distance, float similarity, DescriptorId index) noexcept
Construct structure with parameters.
Definition: IIndex.h:39
fsdk::IDenseIndex
Dense (read only) index interface.
Definition: IIndex.h:158
fsdk::MatchingResult
Result of descriptor matching.
Definition: IDescriptor.h:34
fsdk::SearchResult::index
DescriptorId index
Identificator of descriptor in some storage.
Definition: IIndex.h:25
fsdk::IIndex::search
virtual ResultValue< FSDKError, int > search(const IDescriptor *reference, int maxResultsCount, SearchResult *results) const noexcept=0
Search for descriptors with the shorter distance to passed descriptor.
fsdk::IDescriptor
Descriptor interface.
Definition: IDescriptor.h:91
fsdk::MatchingResult::distance
float distance
distance between descriptor vectors.
Definition: IDescriptor.h:35
fsdk::IIndexBuilder::buildIndex
virtual ResultValue< FSDKError, IDynamicIndex * > buildIndex(const IProgressTracker *const progressTracker=nullptr) noexcept=0
Builds index with every descriptor appended. Blocks until completed.
fsdk::IDynamicDescriptorStorage
Dynamic descriptor storage interface.
Definition: IIndex.h:84
fsdk::IIndexBuilder
Index builder interface.
Definition: IIndex.h:223
fsdk::IDynamicDescriptorStorage::appendBatch
virtual ResultValue< FSDKError, DescriptorId > appendBatch(const IDescriptorBatch *batch) noexcept=0
Appends batch of descriptors to internal storage. If used on.
fsdk::IStaticDescriptorStorage
Static descriptor storage interface.
Definition: IIndex.h:52
fsdk::IProgressTracker::progress
virtual void progress(const float completion) const noexcept=0
Function is called on some operation progress change.