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JeVois Smart Embedded Machine Vision Toolkit Base Modules
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Public Member Functions | Protected Attributes | List of all members
DemoSalGistFaceObj Class Reference
JeVoisBase machine vision modules

Simple demo that combines saliency, gist, face detection, and object recognition. More...

Inheritance diagram for DemoSalGistFaceObj:
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Public Member Functions

 DemoSalGistFaceObj (std::string const &instance)
 Constructor. More...
 
virtual ~DemoSalGistFaceObj ()
 Virtual destructor for safe inheritance. More...
 
virtual void process (jevois::InputFrame &&inframe, jevois::OutputFrame &&outframe) override
 Processing function. More...
 
- Public Member Functions inherited from jevois::StdModule
 StdModule (std::string const &instance)
 
virtual ~StdModule ()
 
void sendSerialImg1Dx (unsigned int camw, float x, float size=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialStd1Dx (float x, float size=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialImg1Dy (unsigned int camh, float y, float size=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialStd1Dy (float y, float size=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialImg2D (unsigned int camw, unsigned int camh, float x, float y, float w=0.0F, float h=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialStd2D (float x, float y, float w=0.0F, float h=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialContour2D (unsigned int camw, unsigned int camh, std::vector< cv::Point_< T > > points, std::string const &id="", std::string const &extra="")
 
void sendSerialStd3D (float x, float y, float z, float w=0.0F, float h=0.0F, float d=0.0F, float q1=0.0F, float q2=0.0F, float q3=0.0f, float q4=0.0F, std::string const &id="", std::string const &extra="")
 
void sendSerialStd3D (std::vector< cv::Point3f > points, std::string const &id="", std::string const &extra="")
 
void sendSerialObjReco (std::vector< ObjReco > const &res)
 
void sendSerialObjDetImg2D (unsigned int camw, unsigned int camh, float x, float y, float w, float h, std::vector< ObjReco > const &res)
 
void sendSerialObjDetImg2D (unsigned int camw, unsigned int camh, ObjDetect const &det)
 
 JEVOIS_DEFINE_ENUM_CLASS (SerStyle,(Terse)(Normal)(Detail)(Fine)) JEVOIS_DECLARE_PARAMETER(serstyle
 
 JEVOIS_DECLARE_PARAMETER (serprec, unsigned int, "Number of decimal points in standardized serial messages as " "defined in http://jevois.org/doc/UserSerialStyle.html", 0U, jevois::Range< unsigned int >(0U, 10U), ParamCateg)
 
 JEVOIS_DEFINE_ENUM_CLASS (SerStamp,(None)(Frame)(Time)(FrameTime)(FrameDateTime)) JEVOIS_DECLARE_PARAMETER(serstamp
 
 JEVOIS_DEFINE_ENUM_CLASS (SerMark,(None)(Start)(Stop)(Both)) JEVOIS_DECLARE_PARAMETER(sermark
 
- Public Member Functions inherited from jevois::Module
 Module (std::string const &instance)
 
virtual ~Module ()
 
virtual void process (InputFrame &&inframe)
 
virtual void process (InputFrame &&inframe, GUIhelper &helper)
 
virtual void sendSerial (std::string const &str)
 
virtual void parseSerial (std::string const &str, std::shared_ptr< UserInterface > s)
 
virtual void supportedCommands (std::ostream &os)
 
- Public Member Functions inherited from jevois::Component
 Component (std::string const &instance)
 
virtual ~Component ()
 
std::shared_ptr< Comp > addSubComponent (std::string const &instance, Args &&...args)
 
void removeSubComponent (std::shared_ptr< Comp > &component)
 
void removeSubComponent (std::string const &instance, bool warnIfNotFound=true)
 
std::shared_ptr< Comp > getSubComponent (std::string const &instance) const
 
bool isTopLevel () const
 
Engine * engine () const
 
bool initialized () const
 
const std::string & className () const
 
const std::string & instanceName () const
 
std::vector< std::string > setParamVal (std::string const &paramdescriptor, T const &val)
 
void setParamValUnique (std::string const &paramdescriptor, T const &val)
 
std::vector< std::pair< std::string, T > > getParamVal (std::string const &paramdescriptor) const
 
T getParamValUnique (std::string const &paramdescriptor) const
 
std::vector< std::string > setParamString (std::string const &paramdescriptor, std::string const &val)
 
void setParamStringUnique (std::string const &paramdescriptor, std::string const &val)
 
std::vector< std::pair< std::string, std::string > > getParamString (std::string const &paramdescriptor) const
 
std::string getParamStringUnique (std::string const &paramdescriptor) const
 
void freezeParam (std::string const &paramdescriptor)
 
void unFreezeParam (std::string const &paramdescriptor)
 
void freezeAllParams ()
 
void unFreezeAllParams ()
 
std::string descriptor () const
 
void setParamsFromFile (std::string const &filename)
 
std::istream & setParamsFromStream (std::istream &is, std::string const &absfile)
 
virtual void paramInfo (std::shared_ptr< UserInterface > s, std::map< std::string, std::string > &categs, bool skipFrozen, std::string const &cname="", std::string const &pfx="")
 
void foreachParam (std::function< void(std::string const &compname, ParameterBase *p)> func, std::string const &cname="")
 
std::shared_ptr< DynamicParameter< T > > addDynamicParameter (std::string const &name, std::string const &description, T const &defaultValue, ParameterCategory const &category)
 
std::shared_ptr< DynamicParameter< T > > addDynamicParameter (std::string const &name, std::string const &description, T const &defaultValue, ValidValuesSpec< T > const &validValuesSpec, ParameterCategory const &category)
 
void setDynamicParameterCallback (std::string const &name, std::function< void(T const &)> cb, bool callnow=true)
 
void removeDynamicParameter (std::string const &name)
 
void setPath (std::string const &path)
 
std::filesystem::path absolutePath (std::filesystem::path const &path="")
 
std::shared_ptr< Comp > addSubComponent (std::string const &instance, Args &&...args)
 
void removeSubComponent (std::shared_ptr< Comp > &component)
 
void removeSubComponent (std::string const &instance, bool warnIfNotFound=true)
 
std::shared_ptr< Comp > getSubComponent (std::string const &instance) const
 
bool isTopLevel () const
 
Engine * engine () const
 
bool initialized () const
 
const std::string & className () const
 
const std::string & instanceName () const
 
std::vector< std::string > setParamVal (std::string const &paramdescriptor, T const &val)
 
void setParamValUnique (std::string const &paramdescriptor, T const &val)
 
std::vector< std::pair< std::string, T > > getParamVal (std::string const &paramdescriptor) const
 
T getParamValUnique (std::string const &paramdescriptor) const
 
std::vector< std::string > setParamString (std::string const &paramdescriptor, std::string const &val)
 
void setParamStringUnique (std::string const &paramdescriptor, std::string const &val)
 
std::vector< std::pair< std::string, std::string > > getParamString (std::string const &paramdescriptor) const
 
std::string getParamStringUnique (std::string const &paramdescriptor) const
 
void freezeParam (std::string const &paramdescriptor)
 
void unFreezeParam (std::string const &paramdescriptor)
 
void freezeAllParams ()
 
void unFreezeAllParams ()
 
std::string descriptor () const
 
void setParamsFromFile (std::string const &filename)
 
std::istream & setParamsFromStream (std::istream &is, std::string const &absfile)
 
virtual void paramInfo (std::shared_ptr< UserInterface > s, std::map< std::string, std::string > &categs, bool skipFrozen, std::string const &cname="", std::string const &pfx="")
 
void foreachParam (std::function< void(std::string const &compname, ParameterBase *p)> func, std::string const &cname="")
 
std::shared_ptr< DynamicParameter< T > > addDynamicParameter (std::string const &name, std::string const &description, T const &defaultValue, ParameterCategory const &category)
 
std::shared_ptr< DynamicParameter< T > > addDynamicParameter (std::string const &name, std::string const &description, T const &defaultValue, ValidValuesSpec< T > const &validValuesSpec, ParameterCategory const &category)
 
void setDynamicParameterCallback (std::string const &name, std::function< void(T const &)> cb, bool callnow=true)
 
void removeDynamicParameter (std::string const &name)
 
void setPath (std::string const &path)
 
std::filesystem::path absolutePath (std::filesystem::path const &path="")
 
- Public Member Functions inherited from jevois::ParameterRegistry
virtual ~ParameterRegistry ()
 

Protected Attributes

std::shared_ptr< Saliency > itsSaliency
 
std::shared_ptr< FaceDetector > itsFaceDetector
 
std::shared_ptr< ObjectRecognitionBase > itsObjectRecognition
 
std::shared_ptr< Kalman2D > itsKF
 
std::string itsScoresStr
 

Additional Inherited Members

- Protected Member Functions inherited from jevois::StdModule
void sendSerialMarkStart ()
 
void sendSerialMarkStop ()
 
std::string getStamp () const
 
- Protected Member Functions inherited from jevois::Component
virtual void preInit ()
 
virtual void postInit ()
 
virtual void preUninit ()
 
virtual void postUninit ()
 
virtual void preInit ()
 
virtual void postInit ()
 
virtual void preUninit ()
 
virtual void postUninit ()
 
- Protected Member Functions inherited from jevois::ParameterRegistry
void addParameter (ParameterBase *const param)
 
void removeParameter (ParameterBase *const param)
 
void callbackInitCall ()
 

Detailed Description

Simple demo that combines saliency, gist, face detection, and object recognition.

Run the visual saliency algorithm to find the most interesting location in the field of view. Then extract a square image region around that point. On alternating frames, either

  • attempt to detect a face in the attended region, and, if positively detected, show the face in the bottom-right corner of the display. The last detected face will remain shown in the bottom-right corner of the display until a new face is detected.
  • or attempt to recognize an object in the attended region, using a deep neural network. The default network is a handwritten digot recognition network that replicated the original LeNet by Yann LeCun and is one of the very first convolutional neural networks. The network has been trained on the standard MNIST database of handwritten digits, and achives over 99% correct recognition on the MNIST test dataset. When a digit is positively identified, a picture of it appears near the last detected face towards the bottom-right corner of the display, and a text string with the digit that has been identified appears to the left of the picture of the digit.

Serial Messages

This module can send standardized serial messages as described in Standardized serial messages formatting, where all coordinates and sizes are standardized using Helper functions to convert coordinates from camera resolution to standardized. One message is issued on every video frame at the temporally filtered attended (most salient) location (green circle in the video display):

  • Serial message type: 2D
  • id: always sm (shorthand for saliency map)
  • x, y: standardized 2D coordinates of temporally-filtered most salient point
  • w, h: standardized size of the pink square box around each attended point
  • extra: none (empty string)

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.

Author
Laurent Itti
Display Name:
Demo Saliency + Gist + Face Detection + Object Recognition
Videomapping:
YUYV 640 312 50.0 YUYV 320 240 50.0 JeVois DemoSalGistFaceObj
Email:
itti@usc.edu
Address:
University of Southern California, HNB-07A, 3641 Watt Way, Los Angeles, CA 90089-2520, USA
Copyright
Copyright (C) 2016 by Laurent Itti, iLab and the University of Southern California
Main URL:
http://jevois.org
Support URL:
http://jevois.org/doc
Other URL:
http://iLab.usc.edu
License:
GPL v3
Distribution:
Unrestricted
Restrictions:
None

Definition at line 80 of file DemoSalGistFaceObj.C.

Constructor & Destructor Documentation

◆ DemoSalGistFaceObj()

DemoSalGistFaceObj::DemoSalGistFaceObj ( std::string const &  instance)
inline

Constructor.

Definition at line 84 of file DemoSalGistFaceObj.C.

References itsFaceDetector, itsKF, itsObjectRecognition, and itsSaliency.

◆ ~DemoSalGistFaceObj()

virtual DemoSalGistFaceObj::~DemoSalGistFaceObj ( )
inlinevirtual

Virtual destructor for safe inheritance.

Definition at line 93 of file DemoSalGistFaceObj.C.

Member Function Documentation

◆ process()

virtual void DemoSalGistFaceObj::process ( jevois::InputFrame &&  inframe,
jevois::OutputFrame &&  outframe 
)
inlineoverridevirtual

Processing function.

Reimplemented from jevois::Module.

Definition at line 96 of file DemoSalGistFaceObj.C.

References jevois::async(), jevois::rawimage::cvImage(), jevois::rawimage::drawCircle(), jevois::rawimage::drawFilledRect(), drawGist(), drawMap(), jevois::rawimage::drawRect(), jevois::RawImage::height, itsFaceDetector, itsKF, itsObjectRecognition, itsSaliency, itsScoresStr, LFATAL, LINFO, jevois::rawimage::paste(), jevois::RawImage::require(), jevois::StdModule::sendSerialImg2D(), jevois::Timer::start(), jevois::Timer::stop(), jevois::RawImage::width, and jevois::rawimage::writeText().

Member Data Documentation

◆ itsFaceDetector

std::shared_ptr<FaceDetector> DemoSalGistFaceObj::itsFaceDetector
protected

Definition at line 335 of file DemoSalGistFaceObj.C.

Referenced by DemoSalGistFaceObj(), and process().

◆ itsKF

std::shared_ptr<Kalman2D> DemoSalGistFaceObj::itsKF
protected

Definition at line 337 of file DemoSalGistFaceObj.C.

Referenced by DemoSalGistFaceObj(), and process().

◆ itsObjectRecognition

std::shared_ptr<ObjectRecognitionBase> DemoSalGistFaceObj::itsObjectRecognition
protected

Definition at line 336 of file DemoSalGistFaceObj.C.

Referenced by DemoSalGistFaceObj(), and process().

◆ itsSaliency

std::shared_ptr<Saliency> DemoSalGistFaceObj::itsSaliency
protected

Definition at line 334 of file DemoSalGistFaceObj.C.

Referenced by DemoSalGistFaceObj(), and process().

◆ itsScoresStr

std::string DemoSalGistFaceObj::itsScoresStr
protected

Definition at line 338 of file DemoSalGistFaceObj.C.

Referenced by process().

The documentation for this class was generated from the following file: