Saliency Gist
Simple saliency map and gist computation module.
By Laurent Ittiitti@usc.eduhttp://jevois.orgGPL v3
 Language: C++Supports mappings with USB output: YesSupports mappings with NO USB output: No 
 Video Mapping:   GREY 120 25 60.0 YUYV 320 240 60.0 JeVois SaliencyGist # saliency + feature maps + gist
 Video Mapping:   GREY 120 15 60.0 YUYV 320 240 60.0 JeVois SaliencyGist # saliency + feature maps
 Video Mapping:   GREY 20 73 60.0 YUYV 320 240 60.0 JeVois SaliencyGist # saliency + gist
 Video Mapping:   GREY 20 15 60.0 YUYV 320 240 60.0 JeVois SaliencyGist # saliency only
 Video Mapping:   GREY 72 16 60.0 YUYV 320 240 60.0 JeVois SaliencyGist # gist only
 Video Mapping:   GREY 72 16 60.0 YUYV 320 240 60.0 JeVois SaliencyGist
This module has no screenshots and no videos

Module Documentation

Computes a saliency map and gist, intended for use by machines.

See the DemoSaliency modute for more explanations about saliency and gist algorithms and for a demo output intended for human viewing.

What is returned depends on the selected output image resolution; it should always be grayscale, and can contain any of:

  • saliency map only
  • saliency + gist
  • saliency + feature maps
  • saliency + feature maps + gist

See the example video mappings provided with this module for sample resolutions and the associated elements that are returned.

Serial Messages

This module can send standardized serial messages as described in Standardized serial messages formatting. One message is issued on every video frame at the temporally filtered attended location. The id field in the messages simply is salient for all messages.

See Standardized serial messages formatting for more on standardized serial messages, and Helper functions to convert coordinates from camera resolution to standardized for more info on standardized coordinates.

ParameterTypeDescriptionDefaultValid Values
(Saliency) cweightbyteColor channel weight255-
(Saliency) iweightbyteIntensity channel weight255-
(Saliency) oweightbyteOrientation channel weight255-
(Saliency) fweightbyteFlicker channel weight255-
(Saliency) mweightbyteMotion channel weight255-
(Saliency) centerminsize_tLowest (finest) of the 3 center scales2-
(Saliency) deltaminsize_tLowest (finest) of the 2 center-surround delta scales3-
(Saliency) smscalesize_tScale of the saliency map4-
(Saliency) mthreshbyteMotion threshold0-
(Saliency) fthreshbyteFlicker threshold0-
(Saliency) msflickboolUse multiscale flicker computationfalse-
(Kalman2D) usevelboolUse velocity tracking, in addition to positionfalse-
(Kalman2D) procnoisefloatProcess noise standard deviation0.003F-
(Kalman2D) measnoisefloatMeasurement noise standard deviation0.05F-
(Kalman2D) postnoisefloatA posteriori error estimate standard deviation0.3F-
Detailed docs:SaliencyGist
Copyright:Copyright (C) 2016 by Laurent Itti, iLab and the University of Southern California
License:GPL v3
Support URL:
Other URL:
Address:University of Southern California, HNB-07A, 3641 Watt Way, Los Angeles, CA 90089-2520, USA