# MultiFrameResultCrossFilter The `MultiFrameResultCrossFilter` class is responsible for filtering captured results. As a default implementation of `CapturedResultFilter`, it provides results verification and duplicate results filtering features. ## Definition *Package:* com.dynamsoft.utility *Inheritance:* [CapturedResultFilter](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/capture-vision-router/auxiliary-classes/captured-result-filter.md) -> MultiFrameResultCrossFilter ```java public final class MultiFrameResultCrossFilter extends CapturedResultFilter ``` ## Methods | Method | Description | | ----------------------------------------------------------------- | ---------------------------------------------------- | | [`MultiFrameResultCrossFilter`](#multiframeresultcrossfilter) | Initializes a new instance of the `MultiFrameResultCrossFilter` class. | | [`enableResultCrossVerification`](#enableresultcrossverification) | Enable result cross verification feature to improve the accuracy of video streaming recognition results. | | [`isResultCrossVerificationEnabled`](#isresultcrossverificationenabled) | Determines whether the result cross verification feature is enabled for the specific captured result item type. | | [`enableResultDeduplication`](#enableresultdeduplication) | Enable result deduplication feature to filter out the duplicate results in the period of `duplicateForgetTime` for video streaming recognition. | | [`isResultDeduplicationEnabled`](#isresultdeduplicationenabled) | Determines whether the result deduplication feature is enabled for the specific result item type. | | [`setDuplicateForgetTime`](#setduplicateforgettime) | Sets the duplicate forget time for the specific captured result item types. | | [`getDuplicateForgetTime`](#getduplicateforgettime) | Gets the duplicate forget time for a specific captured result item type. | | [`setMaxOverlappingFrames`](#setmaxoverlappingframes) | Sets the max referencing frames count for the to-the-latest overlapping feature. | | [`getMaxOverlappingFrames`](#getmaxoverlappingframes) | Gets the max referencing frames count for the to-the-latest overlapping feature. | | [`enableLatestOverlapping`](#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. | | [`isLatestOverlappingEnabled`](#islatestoverlappingenabled) | Determines whether the to-the-latest overlapping feature is enabled for the specific result item type. | | [`setResultCrossVerificationCriteria`](#setresultcrossverificationcriteria) | Sets the cross-verification criteria for specified result item types. | | [`getResultCrossVerificationCriteria`](#getresultcrossverificationcriteria) | Gets the cross-verification criteria for a specified result item type. | ### MultiFrameResultCrossFilter Initializes a new instance of the `MultiFrameResultCrossFilter` class. ```java MultiFrameResultCrossFilter() MultiFrameResultCrossFilter(CaptureVisionRouter router) ``` **Parameters** `router` A `CaptureVisionRouter` object. **See Also** [CaptureVisionRouter](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/capture-vision-router/capture-vision-router.md) ### enableResultCrossVerification Enable result cross verification feature to improve the accuracy of video streaming recognition results. ```java void enableResultCrossVerification(int resultItemTypes, boolean enabled) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `enabled` Set whether to enable result verification. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### isResultCrossVerificationEnabled Determines whether the result cross verification feature is enabled for the specific captured result item type. ```java boolean isResultCrossVerificationEnabled(@EnumCapturedResultItemType int type) ``` **Parameters** `type` The specific captured result item type. It is a value from the `EnumCapturedResultItemType` enumeration. **Return Value** Returns a boolean value indicating whether result verification is enabled for the specific captured result item type. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### enableResultDeduplication Enable result deduplication feature to filter out the duplicate results in the period of `duplicateForgetTime` for video streaming recognition. ```java void enableResultDeduplication(int resultItemTypes, boolean enabled) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `enabled` Set whether to enable result result deduplication. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### isResultDeduplicationEnabled Determines whether the result deduplication feature is enabled for the specific result item type. ```java boolean isResultDeduplicationEnabled(@EnumCapturedResultItemType int type) ``` **Parameters** `type` The specific captured result item type. It is a value from the `EnumCapturedResultItemType` enumeration. **Return Value** Returns a boolean value indicating whether result deduplication is enabled for the specific captured result item type. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### setDuplicateForgetTime Sets the duplicate forget time for the specific captured result item types. ```java void setDuplicateForgetTime(int resultItemTypes, int time) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `time` The duplicate forget time in milliseconds. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### getDuplicateForgetTime Gets the duplicate forget time for a specific captured result item type. ```java int getDuplicateForgetTime(@EnumCapturedResultItemType int resultItemTypes) ``` **Parameters** `resultItemTypes` The specific captured result item type. It is a value from the `EnumCapturedResultItemType` enumeration. **Return Value** Returns the duplicate forget time in milliseconds for the specific captured result item type. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### setMaxOverlappingFrames Sets the max referencing frames count for the to-the-latest overlapping feature. ```java void setMaxOverlappingFrames(int resultItemTypes, int maxOverlappingFrames) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `maxOverlappingFrames` The max referencing frames count. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### getMaxOverlappingFrames Gets the max referencing frames count for the to-the-latest overlapping feature. ```java int getMaxOverlappingFrames(@EnumCapturedResultItemType int resultItemType) ``` **Parameters** `resultItemType` The specific captured result item type. It is a value from the `EnumCapturedResultItemType` enumeration. **Return Value** Returns the max referencing frames count for the specific captured result item type. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### 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. ```java void enableLatestOverlapping(int resultItemTypes, boolean enabled) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `enabled` Set whether to enable the to-the-latest overlapping feature. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### isLatestOverlappingEnabled Determines whether the to-the-latest overlapping feature is enabled for the specific result item type. ```java boolean isLatestOverlappingEnabled(@EnumCapturedResultItemType int type) ``` **Parameters** `type` The specific captured result item type. It is a value from the `EnumCapturedResultItemType` enumeration. **Return Value** Returns a boolean value indicating whether to-the-latest overlapping is enabled for the specific captured result item type. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) ### setResultCrossVerificationCriteria Sets the cross-verification criteria for specified result item types. This method allows customization of the multi-frame verification parameters, controlling how many frames are analyzed and how many consistent results are required. ```java void setResultCrossVerificationCriteria(int resultItemTypes, int frameWindow, int minConsistentFrames) ``` **Parameters** `resultItemTypes` A bitwise OR combination of one or more values from the `EnumCapturedResultItemType` enumeration. `frameWindow` The number of frames to consider for cross-verification. `minConsistentFrames` The minimum number of frames that must contain consistent results for verification to succeed. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) **Remarks** Introduced in Dynamsoft Barcode Reader SDK version 11.4.1000 and Dynamsoft Capture Vision version 3.4.1000. ### getResultCrossVerificationCriteria Gets the cross-verification criteria for a specified result item type. ```java int[] getResultCrossVerificationCriteria(@EnumCapturedResultItemType int resultItemType) ``` **Parameters** `resultItemType` The result item type to query. It is a value from the `EnumCapturedResultItemType` enumeration. **Return value** Returns an int array where the first element is the frame window size and the second element is the minimum consistent frames count. **See Also** [EnumCapturedResultItemType](https://www.dynamsoft.com/capture-vision/docs/server/programming/java/api-reference/core/enum-captured-result-item-type.md) **Remarks** Introduced in Dynamsoft Barcode Reader SDK version 11.4.1000 and Dynamsoft Capture Vision version 3.4.1000.