CMultiFrameResultCrossFilter

The CMultiFrameResultCrossFilter class is responsible for filtering captured results. As a default implementation of CCapturedResultFilter, it provides results verification and duplicate results filtering features.

Definition

Namespace: dynamsoft::utility

Assembly: DynamsoftUtility

class CMultiFrameResultCrossFilter: public CCapturedResultFilter

Methods Summary

EnableResultCrossVerification

Enable result cross verification feature to improve the accuracy of video streaming recognition results.

void EnableResultCrossVerification(int resultItemTypes, bool enabled);

Parameters

[in] resultItemTypes The or value of the captured result item types.
[in] enabled Sets whether to enable result verification.

See Also

CapturedResultItemType

IsResultCrossVerificationEnabled

Determines whether the result cross verification feature is enabled for the specific captured result item type.

bool IsResultCrossVerificationEnabled(CapturedResultItemType type);

Parameters

[in] type The specific captured result item type.

Return value

Returns a bool value indicating whether result verification is enabled for the specific captured result item type.

See Also

CapturedResultItemType

EnableResultDeduplication

Enable result deduplication feature to filter out the duplicate results in the period of duplicateForgetTime for video streaming recognition. The default value of duplicateForgetTime is 3000ms.

• CRIT_BARCODE: When the text and format are identical, it is considered as the same barcode.
• CRIT_TEXT_LINE: When the text is exactly the same, it is considered as the same text line.
• CRIT_DETECTED_QUAD: When the quadrilateral is approximately the same, it is considered as the same quadrilateral.

void EnableResultDeduplication(int resultItemTypes, bool enabled);

Parameters

[in] resultItemTypes The or value of the captured result item types.
[in] enabled Sets whether to enable result result deduplication.

See Also

CapturedResultItemType

IsResultDeduplicationEnabled

Determines whether the result deduplication feature is enabled for the specific result item type.

bool IsResultDeduplicationEnabled(CapturedResultItemType type);

Parameters

[in] type The specific captured result item type.

Return value

Returns a bool value indicating whether result deduplication is enabled for the specific result item type.

See Also

CapturedResultItemType

SetDuplicateForgetTime

Sets the duplicate forget time for the specific captured result item types. The same captured result item will be returned only once during the period.

• CRIT_BARCODE: When the text and format are identical, it is considered as the same barcode.
• CRIT_TEXT_LINE: When the text is exactly the same, it is considered as the same text line.
• CRIT_DETECTED_QUAD: When the quadrilateral is approximately the same, it is considered as the same quadrilateral.

void SetDuplicateForgetTime(int resultItemTypes, int time);

Parameters

[in] resultItemTypes The or value of the captured result item types.
[in] time The duplicate forget time measured in milliseconds. The value rang is [1, 180000].

See Also

CapturedResultItemType

GetDuplicateForgetTime

Gets the duplicate forget time for a specific captured result item type.

int GetDuplicateForgetTime(CapturedResultItemType type);

Parameters

[in] type The specific captured result item type.

Return value

Returns the duplicate forget time for the specific captured result item type.

See Also

CapturedResultItemType

SetMaxOverlappingFrames

Sets the max referencing frames count for the to-the-latest overlapping feature.

void SetMaxOverlappingFrames(int resultItemTypes, int maxOverlappingFrames);

Parameters

[in] resultItemTypes The or value of the captured result item types.

[in] maxOverlappingFrames The max referencing frames count for the to-the-latest overlapping feature.

See Also

CapturedResultItemType

GetMaxOverlappingFrames

Gets the max referencing frames count for the to-the-latest overlapping feature.

int GetMaxOverlappingFrames(CapturedResultItemType resultItemType) const;

Parameters

[in] resultItemType Specifies a specific result item type, which can be defined using CapturedResultItemType.

Return value

Returns the max referencing frames count for the to-the-latest overlapping feature.

See Also

CapturedResultItemType

EnableLatestOverlapping

Enables the to-the-latest overlapping feature. The output captured result will become a combination of the recent results if the latest frame is proved to be similar with the previous.

void EnableLatestOverlapping(int resultItemTypes, bool enabled);

Parameters

[in] resultItemTypes The or value of the captured result item types.
[in] enabled Sets whether to enable the to-the-latest overlapping feature.

See Also

CapturedResultItemType

IsLatestOverlappingEnabled

Determines whether the to-the-latest overlapping feature is enabled for the specific result item type.

bool IsLatestOverlappingEnabled(CapturedResultItemType type) const;

Parameters

[in] type The specific captured result item type.

Return value

Returns a bool value indicating whether the to-the-latest overlapping feature is enabled for the specific result item type.

See Also

CapturedResultItemType