16-899A: The Visual World as seen by the Neurons and Machines

 

 

                                        

 

Instructors:

 

Logistics:

Important Dates:

Abhinav Gupta (abhinavg@cs) EDSH 213

Elissa Aminoff (elissa@cnbc)

 

Monday, Wednesday (12:00-1:20pm) – NSH 3002

 

January 13 – Classes Begin

 

 

 

Course Description:

Why do things look the way they do? Why is understanding the visual world, while so effortless for humans, so excruciatingly difficult for computers? What insights from the human visual system can we use in computer vision? Can we verify machine representation using human subjects? How can computer vision help understand human vision? What are the advantages of combining computer vision with our understanding of the neural mechanisms underlying human vision?

 

In this course, through lectures, paper presentations, and projects, we will explore what we understand about human vision and how that can help in designing computational perception algorithms. We will also explore how assumptions underlying machine perception frameworks can be verified using fMRI studies of human brain; and, whether machine perception frameworks can provide a model to understand the cortical representation of the visual world. 

 

 

 

Blog Link:

http://16-899a-2014.blogspot.com

Project Data

FMRI Data and Stimulus

Training Data

 

 

Schedule:

 

Date

 

Topic

Presenter + Slide Links

Reading

Jan 13

Introduction to Class – A Computer Vision Perspective

Abhinav[Slides]

-

Jan 15

Introduction – A Neuroscience Perspective,

Philosophies in Neuroscience

Elissa[Slides]

-

Jan 20

MLK Day – No CLASS

-

-

Jan 22

Physiology – From Retina to V1 to High-Level Areas

Elissa [Slides]

-

Jan 27,29

Philosophies – Theories behind human vision

Abhinav [Slides]

-

Feb 03

No Class – Attend Dickinson Prize Lecture

 

-

Feb 05

Neuroscience Overview - Methods and Approaches

Elissa [Slides]

-

Feb 10

Neuroscience Overview – Contd, Case Study

Elissa [Slides1] [Slides2]

-

Feb 12,17

Object Recognition in Computer Vision - Issues and Discussions

 

Abhinav [Slides]

-

Feb 19

Object Recognition: (1) Semantic Categories

Abhinav + Elissa [Slides]

      [Gallant] Huth et al., A Continuous Semantic Space Describes
the Representation of Thousands of Object and Action Categories across the Human Brain, Neuron 2012 [PDF]

      Haxby et al, Distributed and Overlapping Representations of Faces and Objects in Ventral Temporal Cortex, Science 2001. [PDF]

      IMAGENET: Imagenet: A Large Scale Hierarchical Image Database, [PDF]

 

Feb 26

Object Recognition - Categories to Attributes

Aaron Walsman

      [Mitchell] Palatucci et al., Zero-Shot Learning with Semantic Output Codes, NIPS 2012 [PDF]

      Kriegeskorte et al. Matching Categorical Object Representations in Inferior Temporal Cortex of Man and Monkey. Neuron 2008 [PDF]

      [Attributes] Farhadi et al., Describing Objects by their Attributes, CVPR 2009 [PDF]

 

March 03

Object Recognition – Functional Categories

Gaurav Singh

      [Mahon] Action-Related Properties Shape Object Representations in the Ventral Stream, Neuron 2007. [PDF]

      Mahon, A connectivity constrained account of the representation and organization of object concepts, Concepts: New Direction 2013 [PDF]

      Gupta et al., From 3D Scene Geometry to Human Workspace, CVPR 2011. [PDF]

 

March 05

Object Recognition – Semantic Vs. Visual Cateogries

Abhinav Shrivastava

      [DiCarlo] Shape Similarity, Better than Semantic Membership, Accounts for the Structure of Visual Object Representations in a Population of Monkey Infero-temporal Neurons, Computational Biology 2013. [PDF]

      Divvala et al., How important are deformable parts in deformable part model?, ECCV Parts and Attributes Workshop 2012. [PDF]

March 17

Projects

-

 

March 19

Categories vs. Exemplars

Priyam Parashar [Slides1]

      [Koustaal] Perceptual specificity in visual object priming: functional magnetic resonance imaging evidence for a laterality difference in fusiform cortex, Neuropsychologia 2001. [PDF]

 

      Torralbo, Walther, Chai, Caddigan, Fei-Fei, Beck, 2013, Good exemplars of natural scene cateogires elicit clearer patterns than bad exemplars but not greater BOLD activity [PDF]

      Malisiewicz et al., Ensemble of Exemplar-SVMs for Object Detection and Beyond, ICCV 2011 [PDF]

March 24

Invariances in Recognition – Mid Level Features

Allie Del Giorno 

     [DiCarlo] Rust et al., Selectivity and Tolerance (Invariance) Both Increase as Visual Information Propagates from Cortical Area V4 to IT. Neuroscience 2010. [PDF]

      Deep network for Object Detection [PDF]

      Risenhuber et al., HMAX Model. [PDF]

       

March 26

Scenes in Computer Vision and Neuroscience

Abhinav + Elissa

     No Readings

March 31

Scenes – Structure + Content

David Fouhey, Yang Cai 

·     Kravitz, Real-World Scene Representations in High-Level Visual Cortex: It’s the Spaces More Than the Places, 2011 [PDF]

·     Park and Oliva, Disentangling scene content from its spatial boundary: Complementary roles for the PPA and LOC in representing real-world scenes, [PDF]

·     Genevieve Patterson, James Hays. SUN Attribute Database: Discovering, Annotating, and Recognizing Scene Attributes. Proceedings of CVPR 2012. [PDF]

Apr 02

Scenes – Object Based Representations

Aayush 

·     Harel et al., 2013, Deconstructing Visual Scenes in Cortex: Gradients of Object and Spatial Layout Information. Cerebral Cortex. [PDF]

·     Stansbury 2013. Natural Scene Statistics Account 
for the Representation of Scene Categories in Human Visual Cortex [PDF]

·     Li and Fei-Fei, Object Bank: A High-Level Image Representation for Scene Classification & Semantic Feature Sparsification, [PDF]

April 07

Mid-term Class Presentations

 

 

April 09

Scenes – Objects [2]

Anirudh 

      Janzen, Selective Neural Representation of Objects Relevant for Navigation, 2004 [PDF]

      Bar 2008, Scenes Unseen: The Parahippocampal Cortex Intrinsically Subserves Contextual Associations, Not Scenes or Places Per Se [PDF]

April 14

Information Processing (IP): Top-Down vs. Bottom-Up

Ishan and Wentao 

      Bar 2006, Top-down facilitation of visual recognition [PDF]

      Bar 2007, The proactive brain: using analogies and associations to generate predictions [PDF]

     Malisiewicz, Beyond Categories: The Visual Memex Model for Reasoning About Object Relationships, NIPS 2011 [PDF]

April 16

Guest Lecture: Biological Motion

John

 

April 21

IP – Attention

Akanksha and Krishna 

·      Reynolds 2003, Interacting Roles of Attention and Visual Salience in V4. [PDF]

·      Maunsell 2006, Feature-based attention in visual cortex. [PDF].

·      Judd et al, Learning to predict where people look, [PDF]

April 23

Role of Context

Jacob and Yuxiong 

      Kverga 2011, Early onset of neural synchronization in the contextual associations network. [PDF]

      Aminoff, The Cortical Underpinnings of Context-based Memory Distortion, 2008 [PDF]

      Tu, Autocontext and its application to High-Level Vision Tasks, [PDF]

April 28

How far does top-down travel? V1?

Shaurya 

     Murray et al., The representation of perceived angular size in human primary visual cortex. Nature Neuroscience 2012 [PDF]

     Borenstein et al., Combining Top-Down and Bottom-Up Segmentation, [PDF]

April 30

Last Lecture

Abhinav Gupta

 

 

Project Presentations

 

 

 

 

Extra Readings:

 

First two Weeks of Feb:

     Ungerleider, Andrew H. Bell, Uncovering the visual alphabet: Advances in our understanding of object perception [PDF]

     Martin, Circuits in Mind: The Neural Foundations for Object Concepts, 2009 [PDF]