---
layout: default-layout
title: DSDetectedQuadResultItem - Dynamsoft Document Normalizer module iOS Edition API Reference
description: The class DSDetectedQuadResultItem of Dynamsoft Document Normalizer module represents a captured result whose type is detected quads, which contains the location and confidence as a document boundary.
keywords: detected quads, objective-c, swift
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---

# DSDetectedQuadResultItem

The `DetectedQuadResultItem` class is an extension of the [`DSCapturedResultItem`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html) that represents a detected quadrilateral. This is the most basic unit of a detected quadrilateral, one of the captured result types that the Capture Vision Router can output.

## Definition

*Assembly:* DynamsoftCaptureVisionBundle.xcframework

<div class="sample-code-prefix"></div>
>- Objective-C
>- Swift
>
>1. 
```objc
NS_SWIFT_NAME(DetectedQuadResultItem)
@interface DSDetectedQuadResultItem: DSCapturedResultItem
```
2. 
```swift
class DetectedQuadResultItem: CapturedResultItem
```

## Attributes

| Attributes | Type | Description |
| ---------- | ---- | ----------- |
| [`location`](#location) | *DSQuadrilateral* | A DSQuadrilateral object as the location of current object. |
| [`confidenceAsDocumentBoundary`](#confidenceasdocumentboundary) | *NSInteger* | TThe confidence score of the detected quadrilateral's boundary, measuring the certainty that the detected quadrilateral represents the boundary of a document. |
| [`crossVerificationStatus`](#crossverificationstatus) | *DSCrossVerificationStatus* | The cross verification status of the result item. |

The following attributes are inherited from [`DSCapturedResultItem`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html).

| Attributes | Type | Description |
| ---------- | ---- | ----------- |
| [`type`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html#type) | *DSCapturedResultItemType* | The type of the captured result item. |
| [`referencedItem`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html#referenceditem) | *DSCapturedResultItem \** | The referenced captured result item. The reference dependencies is defined in the Capture Vision settings. |
| [`targetROIDefName`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html#targetroidefname) | *NSString* | The name of the [`TargetROIDef`]({{ site.dcv_parameters_reference }}target-roi-def/){:target="_blank"} object which includes a task that generated the result. |
| [`taskName`]({{ site.dcv_ios_api }}core/basic-structures/captured-result-item.html#taskname) | *NSString* | The name of the task that generated the result. |

### location

A [DSQuadrilateral]({{ site.dcv_ios_api }}core/basic-structures/quadrilateral.html) object that represents the location of the detected quadrilateral within the image or frame.

<div class="sample-code-prefix"></div>
>- Objective-C
>- Swift
>
>1. 
```objc
@property(nonatomic, nullable, readonly) DSQuadrilateral *location;
```
2. 
```swift
var location: DSQuadrilateral? { get }
```

### confidenceAsDocumentBoundary

The confidence score of the detected quadrilateral's boundary, measuring the certainty that the detected quadrilateral represents the boundary of a document.

<div class="sample-code-prefix"></div>
>- Objective-C
>- Swift
>
>1. 
```objc
@property(nonatomic, assign, readonly) NSInteger confidenceAsDocumentBoundary;
```
2. 
```swift
var confidenceAsDocumentBoundary: Int { get }
```

### crossVerificationStatus

The cross verification status of the result. The cross verification status determines whether the result item is approved by the multi-frame cross verification mechanism. If approved, the cross verification status is `CVS_PASSED`. Otherwise, it is `CVS_FAILED`.

<div class="sample-code-prefix"></div>
>- Objective-C
>- Swift
>
>1. 
```objc
@property (nonatomic, readonly) DSCrossVerificationStatus crossVerificationStatus;
```
2. 
```swift
var crossVerificationStatus: CrossVerificationStatus { get }
```

Related API:

- [`DSCrossVerificationStatus`]({{ site.dcv_enumerations }}core/cross-verification-status.html)