Enable Body and Body Attribute Recognition

FindFace Multi allows you to recognize individual human bodies and body attributes (currently only clothing color).

To enable recognition of human bodies and their attributes, do the following:

Specify neural network models for body object and body attribute recognition in the /etc/findface-extraction-api.ini configuration file. Do the following:

Important

Be sure to choose the right acceleration type for each model, matching the acceleration type of findface-extraction-api: CPU or GPU. Be aware that findface-extraction-api on CPU can work only with CPU-models, while findface-extraction-api on GPU supports both CPU- and GPU-models.

Open the /etc/findface-extraction-api.ini configuration file.
```
sudo vi /etc/findface-extraction-api.ini
```

Specify the body detector model in the detectors -> models section by pasting the following code:

GPU

detectors:

  ...
  models:
    ...
    glenn:
      aliases:
      - body
      - silhouette
      model: pedet/glenn_005.gpu.fnk
      options:
        min_object_size: 32
        resolutions: [256x256, 384x384, 512x512, 768x768, 1024x1024, 1536x1536, 2048x2048]

  ...

CPU

detectors:

  ...
  models:
    ...
    glenn:
      aliases:
      - body
      - silhouette
      model: pedet/glenn_005.cpu.fnk
      options:
        min_object_size: 32
        resolutions: [256x256, 384x384, 512x512, 768x768, 1024x1024, 1536x1536, 2048x2048]

  ...

Specify the extraction models in the extractors -> models section, subject to the extractors you want to enable:

GPU

extractors:
   ...
   models:
    body_color: pedattr/pedattr.color.v1.gpu.fnk
    body_emben: pedrec/andariel.gpu.fnk
    body_quality: pedattr/pedattr.quality.v0.gpu.fnk

CPU

extractors:
   ...
   models:
    body_color: pedattr/pedattr.color.v1.cpu.fnk
    body_emben: pedrec/andariel.cpu.fnk
    body_quality: pedattr/pedattr.quality.v0.cpu.fnk

The following extractors are available:

Recognition type	Configure as follows
clothing color	`body_color: pedattr/pedattr.color.v1.gpu.fnk`
clothing color	`body_color: pedattr/pedattr.color.v1.cpu.fnk`
individual body object	`body_emben: pedrec/andariel.gpu.fnk`
individual body object	`body_emben: pedrec/andariel.cpu.fnk`
body quality	`body_quality: pedattr/pedattr.quality.v0.gpu.fnk`
body quality	`body_quality: pedattr/pedattr.quality.v0.cpu.fnk`

Tip

To leave a model disabled, pass the empty value '' to the relevant parameter. Do not remove the parameter itself. Otherwise, the system will be searching for the default model.

extractors:
   ...
   models:
    body_color: ''
    body_emben: ''
    body_quality: ''

Make sure that the normalizers section contains a model for the cropbbox normalizer, as shown in the example below. This normalizer is required for the extractors specified in the previous step.

GPU

normalizers:
  ...

  models:
    ...
    cropbbox:
      model: facenorm/cropbbox.v2.gpu.fnk

CPU

normalizers:
  ...

  models:
    ...
    cropbbox:
      model: facenorm/cropbbox.v2.cpu.fnk

Make sure that the objects -> body section contains the quality_attribute: body_quality:

GPU

objects:
  ...
  body:
    base_normalizer: facenorm/cropbbox.v2.gpu.fnk
    quality_attribute: body_quality
  ...

CPU

objects:
  ...
  body:
    base_normalizer: facenorm/cropbbox.v2.cpu.fnk
    quality_attribute: body_quality

After completing the configuration file modification, make sure it looks similar to the following example.

Restart findface-extraction-api.

sudo systemctl restart findface-extraction-api

Modify the /etc/findface-video-worker-gpu.ini (/etc/findface-video-worker-cpu.ini) configuration file. In the body section, specify the neural network models by analogy with the example below. Restart findface-video-worker-gpu (findface-video-worker-cpu).

GPU

sudo vi /etc/findface-video-worker-gpu.ini

#------------------------------
[body]
#------------------------------
## detector param
## type:number env:CFG_BODY_MIN_SIZE longopt:--body-min-size
min_size = 60

## path to body detector
## type:string env:CFG_BODY_DETECTOR longopt:--body-detector
detector = /usr/share/findface-data/models/pedet/glenny_005_fast.gpu.fnk

## path to normalizer (usually crop2x)
## type:string env:CFG_BODY_NORM longopt:--body-norm
norm = /usr/share/findface-data/models/facenorm/cropbbox.v2.gpu.fnk

## path to body quality extractor
## type:string env:CFG_BODY_QUALITY longopt:--body-quality
quality = /usr/share/findface-data/models/pedattr/pedattr.quality.v0.gpu.fnk

## path to body quality normalizer
## type:string env:CFG_BODY_NORM_QUALITY longopt:--body-norm-quality
norm_quality = /usr/share/findface-data/models/facenorm/cropbbox.v2.gpu.fnk

sudo systemctl restart findface-video-worker-gpu.service

CPU

sudo vi /etc/findface-video-worker-cpu.ini

#------------------------------
[body]
#------------------------------
## detector param
## type:number env:CFG_BODY_MIN_SIZE longopt:--body-min-size
min_size = 60

## path to body detector
## type:string env:CFG_BODY_DETECTOR longopt:--body-detector
detector = /usr/share/findface-data/models/pedet/glenny_005_fast.cpu.fnk

## path to normalizer (usually crop2x)
## type:string env:CFG_BODY_NORM longopt:--body-norm
norm = /usr/share/findface-data/models/facenorm/cropbbox.v2.cpu.fnk

## path to body quality extractor
## type:string env:CFG_BODY_QUALITY longopt:--body-quality
quality = /usr/share/findface-data/models/pedattr/pedattr.quality.v0.cpu.fnk

## path to body quality normalizer
## type:string env:CFG_BODY_NORM_QUALITY longopt:--body-norm-quality
norm_quality = /usr/share/findface-data/models/facenorm/cropbbox.v2.cpu.fnk

sudo systemctl restart findface-video-worker-cpu.service

Open the /etc/findface-video-manager.conf configuration file and make sure it contains the body section in detectors that looks similar to the example below.

Tip

As a reference value for the filter_min_quality parameter, you can take the MINIMUM_BODY_QUALITY parameter value from the /etc/findface-security/config.py configuration file.

sudo vi /etc/findface-video-manager.conf

detectors:
    ...
    body:
      filter_min_quality: 0.6
      filter_min_size: 1
      filter_max_size: 8192
      roi: ''
      fullframe_crop_rot: false
      fullframe_use_png: false
      jpeg_quality: 95
      overall_only: true
      realtime_post_first_immediately: false
      realtime_post_interval: 1
      realtime_post_every_interval: false
      track_interpolate_bboxes: true
      track_miss_interval: 1
      track_overlap_threshold: 0.25
      track_max_duration_frames: 0
      track_send_history: false
      post_best_track_frame: true
      post_best_track_normalize: true
      post_first_track_frame: false
      post_last_track_frame: false

Enable the recognition of bodies and body attributes in the /etc/findface-security/config.py configuration file. Do the following:
1. In the FFSECURITY section, set 'ENABLE_BODIES': True.
```
sudo vi /etc/findface-security/config.py

FFSECURITY = {
    ...

    # optional objects to detect
    'ENABLE_BODIES': True,
    ...
```
2. In the same section, specify the body attributes (color) that you want to display for the body recognition events.
```
# available features are: color
'BODY_EVENTS_FEATURES': ['color'],
```
3. Restart the findface-security service.
```
sudo systemctl restart findface-security.service
```