--- layout: default-layout title: MultiFrameResultCrossFilter - Dynamsoft Capture Vision Android Edition API Reference description: The class MultiFrameResultCrossFilter of Dynamsoft Capture Vision Android is responsible for filtering captured results. keywords: multi-frame result cross filter, Filter needGenerateH3Content: true needAutoGenerateSidebar: true noTitleIndex: true --- # MultiFrameResultCrossFilter The `MultiFrameResultCrossFilter` class is responsible for filtering captured results. ## Definition *Namespace:* com.dynamsoft.utility *Assembly:* DynamsoftCaptureVisionBundle.aar ```java class MultiFrameResultCrossFilter implements CapturedResultFilter ``` ## Methods | Method | Description | | ------ | ----------- | | [`MultiFrameResultCrossFilter`](#multiframeresultcrossfilter-1) | The constructor. | | [`enableLatestOverlapping`](#enablelatestoverlapping) | Enables or disables the to-the-latest overlapping feature of one or multiple specific result item types. This feature can sharpenly increase the read-rate performance when decoding multiple barcodes under the video streaming. | | [`enableResultCrossVerification`](#enableresultcrossverification) | Enables or disables the verification of one or multiple specific result item types. | | [`enableResultDeduplication`](#enableresultdeduplication) | Enables or disables the deduplication process for one or multiple specific result item types. | | [`getDuplicateForgetTime`](#getduplicateforgettime) | Gets the interval during which duplicates are disregarded for a given result item type. | | [`getMaxOverlappingFrames`](#getmaxoverlappingframes) | Get the maximum overlapping frames count for a given result item type. | | [`isLatestOverlappingEnabled`](#islatestoverlappingenabled) | Checks if to-the-latest overlapping is active for a given result item type. | | [`isResultCrossVerificationEnabled`](#isresultcrossverificationenabled) | Checks if verification is active for a given result item type. | | [`isResultDeduplicationEnabled`](#isresultdeduplicationenabled) | Checks if deduplication is active for a given result item type. | | [`setDuplicateForgetTime`](#setduplicateforgettime) | Sets the interval during which duplicates are disregarded for specific result item types. | | [`setMaxOverlappingFrames`](#setmaxoverlappingframes) | Set the maximum overlapping frames count for a given 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 The constructor. ```java MultiFrameResultCrossFilter(); ``` ### enableResultCrossVerification Enables or disables the verification of one or multiple specific result item types. ```java void enableResultCrossVerification(@EnumCapturedResultItemType int resultItemTypes, boolean enable); ``` **Parameters** `[in] type`: Specifies one or multiple specific result item types, which can be defined using [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). `[in] enable`: Boolean to toggle verification on or off. > [!Note] > > The verification is enabled by default for `CRIT_TEXT_LINE` & `CRIT_DETECTED_QUAD` type result items. ### isResultCrossVerificationEnabled Checks if verification is active for a given result item type. ```java boolean isResultCrossVerificationEnabled(@EnumCapturedResultItemType int type); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). **Return Value** Boolean indicating the status of verification for the specified type. ### enableResultDeduplication Enables or disables the deduplication process for one or multiple specific result item types. ```java void enableResultDeduplication(@EnumCapturedResultItemType int resultItemTypes, boolean enable); ``` **Parameters** `[in] type`: Specifies one or multiple specific result item types, which can be defined using [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). `[in] enable`: Boolean to toggle deduplication on or off. **Remarks** Result deduplication is disabled by default. You can enable it and adjust the `DuplicateForgetTime` based on your requirements. ### isResultDeduplicationEnabled Checks if deduplication is active for a given result item type. ```java boolean isResultDeduplicationEnabled(@EnumCapturedResultItemType int type); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). **Return Value** Boolean indicating the deduplication status for the specified type. ### setDuplicateForgetTime Sets the interval during which duplicates are disregarded for a given result item type. ```java void setDuplicateForgetTime(@EnumCapturedResultItemType int resultItemTypes, int time); ``` **Parameters** `[in] type`: Specifies one or multiple specific result item types, which can be defined using [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). `[in] time`: Time in milliseconds during which duplicates are disregarded. **Remarks** The default value is 3,000 milliseconds. This means that when result deduplication is enabled, identical results appearing within 3 seconds of each other will be filtered out by default. The maximum allowed value is 180,000 milliseconds. ### getDuplicateForgetTime Gets the interval during which duplicates are disregarded for a given result item type. ```java int getDuplicateForgetTime(@EnumCapturedResultItemType int type); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). **Return Value** The set interval for the specified item type. ### enableLatestOverlapping Enables or disables the to-the-latest overlapping feature of one or multiple specific result item types. This feature can sharpenly increase the read-rate performance when decoding multiple barcodes under the video streaming. ```java void enableLatestOverlapping(@EnumCapturedResultItemType int resultItemTypes, boolean enable); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). `[in] enable`: Boolean to toggle to-the-latest overlapping on or off. ### isLatestOverlappingEnabled Checks if to-the-latest overlapping is active for a given result item type. ```java boolean isLatestOverlappingEnabled(@EnumCapturedResultItemType int type); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). **Return Value** Boolean indicating the to-the-latest overlapping status for the specified type. ### setMaxOverlappingFrames Set the maximum overlapping frames count for a given result item type. You can set it higher if: - You capture device is stationary or moving stably. - You want to further improve the read-rate. ```java void setMaxOverlappingFrames(@EnumCapturedResultItemType int resultItemTypes, int maxFramesToCheck); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). `[in] maxOverlappingFrames`: The maximum overlapping frame count for the overlapping. ### getMaxOverlappingFrames Get the maximum overlapping frames count for a given result item type. ```java int getMaxOverlappingFrames(@EnumCapturedResultItemType int type); ``` **Parameters** `[in] type`: Specifies the result item type with [`EnumCapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html?lang=android). **Return Value** The maximum overlapping frame count for the overlapping. ### setResultCrossVerificationCriteria Sets the cross-verification criteria for specified result item types. This function 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, CrossVerificationCriteria criteria); ``` **Parameters** `[in] resultItemTypes`: Specifies the result item types with [`CapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html). `[in] criteria`: Specifies the cross-verification criteria with a [`CrossVerificationCriteria`]({{ site.dcv_android_api }}utility/cross-verification-criteria.html) object. **Remarks** The default criteria per result type are: | Result Type | `frameWindow` | `minConsistentFrames` | | --- | --- | --- | | Barcode (DBR) | 5 | 2 | | Text Line (DLR) | 5 | 2 | | Detected Quad / Deskewed Image (DDN) | 6 | 4 | ### getResultCrossVerificationCriteria Gets the cross-verification criteria for a specified result item type. ```java CrossVerificationCriteria getResultCrossVerificationCriteria(CapturedResultItemType resultItemType); ``` **Parameters** `[in] resultItemType`: Specifies the result item type with [`CapturedResultItemType`]({{ site.dcv_android_api }}core/enum/captured-result-item-type.html). **Return Value** The cross-verification criteria for the specified result item type, of type [`CrossVerificationCriteria`]({{ site.dcv_android_api }}utility/cross-verification-criteria.html).