• No results found

Image representations for Image understanding

N/A
N/A
Info
Downloaden
Protected

Academic year: 2021

Share "Image representations for Image understanding"

Copied!
21
0
0

Bezig met laden.... (Bekijk nu de volledige tekst)

Download het nu ( 21 pagina )

Hele tekst

(1)

Image representations for Image understanding

Tinne Tuytelaars

(2)

Image Understanding

Truck

People

Mountains

Luggage

(3)

Challenges

(4)

Current state-of-the-art

(5)

Image representation

Local viewpoint invariant features

Tuytelaars and Van Gool, BMVC00

(6)

Wide baseline matching

(7)

Object recognition

Ferrari, Tuytelaars and Van Gool, IJCV06

(8)

Robot movie

(9)

Football teams recognition

(10)

Dexia team

Rotation, motion-blur, clutter

(11)

Both teams

Out-of-plane rotation, both teams present

(12)

Both teams

Out-of-plane rotation, both teams present

(13)

Fortis team

Blur, scale, compression artifacts

(14)

Fortis team

Blur, compression artifacts

Zoom 4x Zoom 4x

(15)

SURF: Speeded Up Robust Features

• Efficient scheme for feature extraction

• GPU-SURF: runs at 100 Hz

• Hes-STIP (spatio-temporal SURF)

(16)
(17)

Category-level object recognition

(18)

Category-level object recognition

• Local feature extraction

• Robust description

• Vector quantization

• Bag-of-visual-words representation

• Classifier

(19)

Pixelwise classification

(20)

Pixelwise classification

(21)

Questions?

Referenties

Download het nu ( PPT - 21 pagina - 16.58 MB )

GERELATEERDE DOCUMENTEN

Thickness measurement using ion beam techniques

[r]

On the Potential of PUF for Pseudonym Generation in Vehicular Networks

For inter-vehicle communication utilization of symmetric authentication schemes offers the benefits of short generation and verification time as well as less security overhead [24].

Gender Bias on Wikipedia. An analysis of the affiliation network

Previous research has shown a gender disparity is also present within these users: only 13-16% of the Wikipedia editors is female and they make up an even smaller percentage of

The cradle of congregationalism in the Lower Orange River Valley 1902-1952: a church historical study

The old name of the Congregational Church was the Congregational Union of South.. Church authorities to engage in some discussion in order to arnve at an

Challenging both ends.

• “Both ENDS supports organisations in developing countries to fight poverty and to work towards sustainable environmental management”.. Header: Environment and

The relationship between the level of street lighting and the traffic safety

The night/day accident ratio for different classes of road and light levels (Amsterdam-West and Leeuwarden).. Classification of

Invasive perennial species in an agricultural area of the Western Cape Province : distribution and relationship with various land-use types

Our data also allows us to identify which perennial invasive species presents the greatest threat to conservation of remnant patches in agricultural areas, by using De Rust