Package org.springframework.cloud.fn.object.detection

Class ObjectDetectionOutputConverter

java.lang.Object

org.springframework.cloud.fn.object.detection.ObjectDetectionOutputConverter

All Implemented Interfaces:

Function<Map<String,org.tensorflow.Tensor<?>>,List<List<ObjectDetection>>>

public class ObjectDetectionOutputConverter
extends Object
implements Function<Map<String,org.tensorflow.Tensor<?>>,List<List<ObjectDetection>>>

Converts the Tensorflow Object Detection result into ObjectDetection list. The pre-trained Object Detection models (http://bit.ly/2osxMAY) produce 3 tensor outputs: (1) detection_classes - containing the ids of detected objects, (2) detection_scores - confidence probabilities of the detected object and (3) detection_boxes - the object bounding boxes withing the images. The MASK based models provide to 2 additional tensors: (4) num_detections and (5) detection_masks. All outputs tensors are float arrays, having: - 1 as the first dimension - maxObjects as the second dimension While boxesT will have 4 as the third dimension (2 sets of (x, y) coordinates). This can be verified by looking at scoresT.shape() etc. The format detected classes (e.g. labels) names is defined by the 'string_int_labels_map.proto'. The input list is available at: https://github.com/tensorflow/models/tree/master/research/object_detection/data

Author:

Christian Tzolov

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DETECTION_BOXES	DETECTION_BOXES.
static final String	DETECTION_CLASSES	DETECTION_CLASSES.
static final String	DETECTION_MASKS	DETECTION_MASKS.
static final String	DETECTION_SCORES	DETECTION_SCORES.
static final String	NUM_DETECTIONS	NUM_DETECTIONS.

Constructor Summary

Constructors

Constructor	Description
ObjectDetectionOutputConverter(Resource labelsResource, float confidence, List<String> modelFetch)

Method Summary

Modifier and Type	Method	Description
List<List<ObjectDetection>>	apply(Map<String,org.tensorflow.Tensor<?>> tensorMap)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Function

andThen, compose

Field Details

DETECTION_CLASSES

public static final String DETECTION_CLASSES

DETECTION_CLASSES.

See Also:

• Constant Field Values

DETECTION_SCORES

public static final String DETECTION_SCORES

DETECTION_SCORES.

See Also:

• Constant Field Values

DETECTION_BOXES

public static final String DETECTION_BOXES

DETECTION_BOXES.

See Also:

• Constant Field Values

DETECTION_MASKS

public static final String DETECTION_MASKS

DETECTION_MASKS.

See Also:

• Constant Field Values

NUM_DETECTIONS

public static final String NUM_DETECTIONS

NUM_DETECTIONS.

See Also:

• Constant Field Values

Constructor Details

ObjectDetectionOutputConverter

public ObjectDetectionOutputConverter(Resource labelsResource,
 float confidence,
 List<String> modelFetch)

Method Details

apply

public List<List<ObjectDetection>> apply(Map<String,org.tensorflow.Tensor<?>> tensorMap)

Specified by:

apply in interface Function<Map<String,org.tensorflow.Tensor<?>>,List<List<ObjectDetection>>>