FilterItem

Filter out detections that are not part of a user-defined list of labels.

This module provides a pipeline element to filter out detections that are not part of a user-defined list of labels.

Examples:

REST API:

WIP

Configuration File:

short-from : filter-item:<s/l-item(s)>

Only allow person detections:

source:
- address: https://youtu.be/jY86pXeTOLw
- type: youtube
pipeline:
- coco-nano:a:0.3:0.3
- filter-item:person

Only allow person and bus detections:

source:
- address: https://youtu.be/jY86pXeTOLw
- type: youtube
pipeline:
- coco-nano:a:0.3:0.3
- filter-item:[person,bus]

FilterItem Objects

class FilterItem(Element)

Filter out detections that are not part of a user-defined list of labels.

Attributes:

• name str - The name of the element.
• item Union[str, List[str]] - The label of the item(s) to keep.

Examples:

Face:

ele = FilterItem("face")

Person:

ele = FilterItem("person")

extract_params

@staticmethod
def extract_params(model_params)

Extract the parameters for this element.

Arguments:

• model_params List[str] - The parameters for this element.

Returns:

• item Union[str, List[str]] - The item(s) to filter.

Raises:

• ExtractParameterException - If the parameters are not valid.

Examples:

params = FilterItem.extract_params(["person"])
ele = FilterItem(params)

process

def process(meta)

Filter out detections that are not part of a user-defined list of items.

This is the main function for this element. It filters out detections that are not part of a user-defined list of items. If the item is "*" then it will keep all detections.

Arguments:

• meta dict - The metadata to process.

Returns:

• meta dict - The processed metadata.

Examples:

params = FilterItem.extract_params(["person"])
ele = FilterItem(params)
meta = ele.process(meta)