Best content in Robotics | Diigo

Monte Carlo localization - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Monte_Carlo_localization

shared by Filip Bártek on 18 May 15 - No Cached

particle filter localization
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typically starts with a uniform random distribution of particles
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hopefully most particles will converge to where the robot actually is.
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...19 more annotations...
environment is static and does not change with time
- Filip Bártek on 18 May 15
  
  We also need to capture the robot's velocity in the state (pose) in case the robot has some momentum, so the three parameters may be not enough for a 2D robot.
  
  <div class="cArrow"> </div><div class="cContentInner">We also need to capture the robot's velocity in the state (pose) in case the robot has some momentum, so the three parameters may be not enough for a 2D robot.</div>
  
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assumes the Markov property
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position and orientation
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particles are uniformly distributed over the configuration space
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Given a map
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every time
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every time
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motion_update
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sensor_update
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sensor_update
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some noise is applied
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It now believes it is at one of two locations.
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The robot has successfully localized itself.
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actuation command
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no actuator is perfect: they may overshoot or undershoot the desired amount of motion
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the motion model must be designed to include noise as necessary
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Particles which were consistent with sensor readings are more likely to be chosen
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possibly more than once
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a robot becomes increasingly sure of its position as it senses its environment
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Recursive Bayesian estimation - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Recursive_Bayesian_estimation

shared by Filip Bártek on 18 May 15 - No Cached

is constant relative to
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is constant relative to
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is constant relative to
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...13 more annotations...
Markov assumption
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conditionally independent of the other earlier states
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measurement at the k-th timestep is dependent only upon the current state
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proportional
- Filip Bártek on 18 May 15
  
  It is proportional with the factor \alpha. \alpha = 1 / p(z_k|z_{1:k-1}) A way to compute the value of \alpha is shown below. It is common to all the updated states x_k at a given time k and measurement z_k.
  
  <div class="cArrow"> </div><div class="cContentInner">It is proportional with the factor \alpha. \alpha = 1 / p(z_k|z_{1:k-1}) A way to compute the value of \alpha is shown below. It is common to all the updated states x_k at a given time k and measurement z_k.</div>
  
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predicted
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marginalising out the previous states
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predicted state
- Filip Bártek on 18 May 15
  
  p(x_k|z_{1:k-1})
  
  <div class="cArrow"> </div><div class="cContentInner">p(x_k|z_{1:k-1})</div>
  
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update
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predict and update steps
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measurement likelihood
- Filip Bártek on 18 May 15
  
  p(z_k|x_k)
  
  <div class="cArrow"> </div><div class="cContentInner">p(z_k|x_k)</div>
  
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is constant relative to
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can usually be ignored in practice
- Filip Bártek on 18 May 15
  
  We are typically interested in relative probabilities of the states. Equivalently [?], the p(x_k|z_{1:k}) across all the estimated states x_k is a probability distribution: \Sum_{x_k}{p(x_k|z_{1:k})} = 1
  
  <div class="cArrow"> </div><div class="cContentInner">We are typically interested in relative probabilities of the states. Equivalently [?], the p(x_k|z_{1:k}) across all the estimated states x_k is a probability distribution: \Sum_{x_k}{p(x_k|z_{1:k})} = 1</div>
  
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simply normalized, since its integral must be unity
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MSH 11-62 Supernova Remnant - 0 views

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shared by Astro Biology on 27 Nov 14 - No Cached

Astro Biology on 27 Nov 14

Chandra of the supernova remnant MSH 11-62 reveals an irregular shell of hot gas, shown in red, surrounding an extended nebula of high energy X-rays, shown in blue.

<div class="cArrow"> </div><div class="cContentInner">Chandra of the supernova remnant MSH 11-62 reveals an irregular shell of hot gas, shown in red, surrounding an extended nebula of high energy X-rays, shown in blue.</div>

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Astro Biology on 27 Nov 14

Chandra of the supernova remnant MSH 11-62 reveals an irregular shell of hot gas, shown in red, surrounding an extended nebula of high energy X-rays, shown in blue.

<div class="cArrow"> </div><div class="cContentInner">Chandra of the supernova remnant MSH 11-62 reveals an irregular shell of hot gas, shown in red, surrounding an extended nebula of high energy X-rays, shown in blue.</div>

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Know When Milky Way Collision Occur - 0 views

www.astrobio.net/...ollision-100-million-years-ago

milky way satellite galaxy news from nasa solar system planet

shared by Astro Biology on 20 Nov 14 - No Cached

Astro Biology on 20 Nov 14

NASA scientist have found proof that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago. Are you also interested to know how galaxies form, evolve and interact?

<div class="cArrow"> </div><div class="cContentInner">NASA scientist have found proof that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago. Are you also interested to know how galaxies form, evolve and interact?</div>

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Astro Biology on 20 Nov 14

NASA scientist have found proof that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago. Are you also interested to know how galaxies form, evolve and interact?

<div class="cArrow"> </div><div class="cContentInner">NASA scientist have found proof that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago. Are you also interested to know how galaxies form, evolve and interact?</div>

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How Massive Geographic Change may have Triggered Explosion of Animal Life - 0 views

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Cambrian explosion animal life earth atmosphere geological sciencce

shared by Astro Biology on 11 Nov 14 - No Cached

Astro Biology on 11 Nov 14

Scientist are researching about geologic history that may help to solve the riddle of the "Cambrian explosion," the rapid diversification of animal life in the fossil record. Learn more about what Cambrian explosion is and how it has affected animal's life in the past.

<div class="cArrow"> </div><div class="cContentInner">Scientist are researching about geologic history that may help to solve the riddle of the "Cambrian explosion," the rapid diversification of animal life in the fossil record. Learn more about what Cambrian explosion is and how it has affected animal's life in the past.</div>

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Astro Biology on 11 Nov 14

Scientist are researching about geologic history that may help to solve the riddle of the "Cambrian explosion," the rapid diversification of animal life in the fossil record. Learn more about what Cambrian explosion is and how it has affected animal's life in the past.

<div class="cArrow"> </div><div class="cContentInner">Scientist are researching about geologic history that may help to solve the riddle of the "Cambrian explosion," the rapid diversification of animal life in the fossil record. Learn more about what Cambrian explosion is and how it has affected animal's life in the past.</div>

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Know More about Robotic Mars Mission - 0 views

www.astrobio.net/...living-land-final-frontier

mars mission robotic exploration solar system planets news from nasa

shared by Astro Biology on 06 Nov 14 - No Cached

Astro Biology on 06 Nov 14

Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.

<div class="cArrow"> </div><div class="cContentInner">Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.</div>

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Astro Biology on 06 Nov 14

Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.

<div class="cArrow"> </div><div class="cContentInner">Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.</div>

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Know How Origin of Earth's survived when Oxygen has Abundant - 0 views

www.astrobio.net/...life-know-now-date

earth atmosphere oxygen for life planet solar system news from nasa

shared by Astro Biology on 04 Nov 14 - No Cached

Astro Biology on 04 Nov 14

We all are aware of the fact that billions of years ago, there was very little oxygen on Earth to breathe. Scientist of University of California at Riverside (UCR) have researched when in Earth's history oxygen may have abundant. Curious to know how origins of Earth survived?

<div class="cArrow"> </div><div class="cContentInner">We all are aware of the fact that billions of years ago, there was very little oxygen on Earth to breathe. Scientist of University of California at Riverside (UCR) have researched when in Earth's history oxygen may have abundant. Curious to know how origins of Earth survived?</div>

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Astro Biology on 04 Nov 14

We all are aware of the fact that billions of years ago, there was very little oxygen on Earth to breathe. Scientist of University of California at Riverside (UCR) have researched when in Earth's history oxygen may have abundant. Curious to know how origins of Earth survived?

<div class="cArrow"> </div><div class="cContentInner">We all are aware of the fact that billions of years ago, there was very little oxygen on Earth to breathe. Scientist of University of California at Riverside (UCR) have researched when in Earth's history oxygen may have abundant. Curious to know how origins of Earth survived?</div>

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Know More About Plenty of Water in Asteroid Fragments - 0 views

www.astrobio.net/...dance-water-asteroid-fragments

asteroid water fragment news from nasa space exploration

shared by Astro Biology on 28 Oct 14 - No Cached

Astro Biology on 28 Oct 14

Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?

<div class="cArrow"> </div><div class="cContentInner">Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?</div>

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Astro Biology on 28 Oct 14

Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?

<div class="cArrow"> </div><div class="cContentInner">Do you know new study could provide visions about the abundance of water in fragments from a famous asteroid? This research mainly focused on a mineral called apatite. Want to know more about this asteroid?</div>

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Extreme Ultraviolet Image of a Significant Solar Flare - 0 views

www.astrobio.net/...e-of-a-significant-solar-flare

origin of life on earth nasa solar system planets in our news from

shared by Astro Biology on 21 Oct 14 - No Cached

Astro Biology on 21 Oct 14

The sun emitted a significant solar flare which is classified as an X1.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength.

<div class="cArrow"> </div><div class="cContentInner">The sun emitted a significant solar flare which is classified as an X1.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength.</div>

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Astro Biology on 21 Oct 14

The sun emitted a significant solar flare which is classified as an X1.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength.

<div class="cArrow"> </div><div class="cContentInner">The sun emitted a significant solar flare which is classified as an X1.1-class flare. X-class denotes the most intense flares, while the number provides more information about its strength.</div>

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Earth's magnetic field has flipped - 0 views

www.astrobio.net/...eld-flip-within-human-lifetime

news from nasa solar system planets in our

shared by Astro Biology on 20 Oct 14 - No Cached

Astro Biology on 20 Oct 14

The new discovery indicates that the intensity of Earth's magnetic field is decreasing 10 times faster, leading some geophysicists to predict a reversal within a few thousand years.

<div class="cArrow"> </div><div class="cContentInner">The new discovery indicates that the intensity of Earth's magnetic field is decreasing 10 times faster, leading some geophysicists to predict a reversal within a few thousand years.</div>

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Astro Biology on 20 Oct 14

The new discovery indicates that the intensity of Earth's magnetic field is decreasing 10 times faster, leading some geophysicists to predict a reversal within a few thousand years.

<div class="cArrow"> </div><div class="cContentInner">The new discovery indicates that the intensity of Earth's magnetic field is decreasing 10 times faster, leading some geophysicists to predict a reversal within a few thousand years.</div>

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Milky Way View From Space Station - 0 views

milky way spacecraft space exploration nasa news

shared by Astro Biology on 17 Oct 14 - No Cached

Astro Biology on 17 Oct 14

The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.

<div class="cArrow"> </div><div class="cContentInner">The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.</div>

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Astro Biology on 17 Oct 14

The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.

<div class="cArrow"> </div><div class="cContentInner">The Milky way steals the show from Sahara sands that make the Earth glow orange. Reid Wiseman a NASA astronaut has captured this pic from International Space Station.</div>

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Know More about First Light At MARS - 0 views

www.astrobio.net/...first-light-mars

mars mission maven space station nasa news

shared by Astro Biology on 14 Oct 14 - No Cached

Astro Biology on 14 Oct 14

Do you know how long does Mars mission take to start & sending back data once it's arrived at the red planet? Read more about Mars atmosphere, wavelength, MAVEN etc. only at Astrobiology Magazines.

<div class="cArrow"> </div><div class="cContentInner">Do you know how long does Mars mission take to start & sending back data once it's arrived at the red planet? Read more about Mars atmosphere, wavelength, MAVEN etc. only at Astrobiology Magazines.</div>

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Astro Biology on 14 Oct 14

Do you know how long does Mars mission take to start & sending back data once it's arrived at the red planet? Read more about Mars atmosphere, wavelength, MAVEN etc. only at Astrobiology Magazines.

<div class="cArrow"> </div><div class="cContentInner">Do you know how long does Mars mission take to start & sending back data once it's arrived at the red planet? Read more about Mars atmosphere, wavelength, MAVEN etc. only at Astrobiology Magazines.</div>

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Know How Cassini Looking Mysterious Feature Evolve in Titan Sea - 0 views

www.astrobio.net/...rious-feature-evolve-titan-sea

spacecraft cassini space station solar system exploration

shared by Astro Biology on 10 Oct 14 - No Cached

Astro Biology on 10 Oct 14

Do you know NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a huge hydrocarbon sea on Saturn's moon Titan? Curious to read more about mysterious feature?

<div class="cArrow"> </div><div class="cContentInner">Do you know NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a huge hydrocarbon sea on Saturn's moon Titan? Curious to read more about mysterious feature?</div>

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Astro Biology on 10 Oct 14

Do you know NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a huge hydrocarbon sea on Saturn's moon Titan? Curious to read more about mysterious feature?

<div class="cArrow"> </div><div class="cContentInner">Do you know NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a huge hydrocarbon sea on Saturn's moon Titan? Curious to read more about mysterious feature?</div>

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Mars Mass Balance Challenge - 0 views

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shared by Astro Biology on 27 Sep 14 - No Cached

Astro Biology on 27 Sep 14

Know more about what is mars mass balance challenge only at http://goo.gl/t35dNB

<div class="cArrow"> </div><div class="cContentInner">Know more about what is mars mass balance challenge only at <a href="http://goo.gl/t35dNB" rel="nofollow" target="_blank">http://goo.gl/t35dNB</a></div>

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Astro Biology on 27 Sep 14

Know more about what is mars mass balance challenge only at http://goo.gl/t35dNB

<div class="cArrow"> </div><div class="cContentInner">Know more about what is mars mass balance challenge only at <a href="http://goo.gl/t35dNB" rel="nofollow" target="_blank">http://goo.gl/t35dNB</a></div>

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What Is Pluto? A Planet or Exoplanet - 0 views

www.astrobio.net/...pluto-planet-votes

pluto planet solar system nasa news space exploration

shared by Astro Biology on 26 Sep 14 - No Cached

Astro Biology on 26 Sep 14

Astronomers have found Pluto sized object beyond Neptune now they have a debate to decide what to call a Pluto a planet or exoplanet. Curious to know more about it.

<div class="cArrow"> </div><div class="cContentInner">Astronomers have found Pluto sized object beyond Neptune now they have a debate to decide what to call a Pluto a planet or exoplanet. Curious to know more about it.</div>

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Astro Biology on 26 Sep 14

Astronomers have found Pluto sized object beyond Neptune now they have a debate to decide what to call a Pluto a planet or exoplanet. Curious to know more about it.

<div class="cArrow"> </div><div class="cContentInner">Astronomers have found Pluto sized object beyond Neptune now they have a debate to decide what to call a Pluto a planet or exoplanet. Curious to know more about it.</div>

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Latest News from Astrobiology Magazine - 0 views

www.pinterest.com/astrobiology

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shared by Astro Biology on 22 Sep 14 - No Cached

Astro Biology on 22 Sep 14

Get latest NASA invention's pictures, discoveries, technologies, space exploration and other news only at Astrobiology Magazine. Join us on Pinterest to see current happenings in Universe.

<div class="cArrow"> </div><div class="cContentInner">Get latest NASA invention's pictures, discoveries, technologies, space exploration and other news only at Astrobiology Magazine. Join us on Pinterest to see current happenings in Universe.</div>

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Astro Biology on 22 Sep 14

Get latest NASA invention's pictures, discoveries, technologies, space exploration and other news only at Astrobiology Magazine. Join us on Pinterest to see current happenings in Universe.

<div class="cArrow"> </div><div class="cContentInner">Get latest NASA invention's pictures, discoveries, technologies, space exploration and other news only at Astrobiology Magazine. Join us on Pinterest to see current happenings in Universe.</div>

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DNA Humble Beginnings As Nutrient Carrier - 0 views

dna hummble nutrient carrier science astrobiology

shared by Astro Biology on 03 Sep 14 - No Cached

Astro Biology on 03 Sep 14

New research intriguingly suggests that DNA, the genetic information carrier for humans and other complex life, might have had a rather humbler origin.

<div class="cArrow"> </div><div class="cContentInner">New research intriguingly suggests that DNA, the genetic information carrier for humans and other complex life, might have had a rather humbler origin.</div>

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Astro Biology on 03 Sep 14

New research intriguingly suggests that DNA, the genetic information carrier for humans and other complex life, might have had a rather humbler origin.

<div class="cArrow"> </div><div class="cContentInner">New research intriguingly suggests that DNA, the genetic information carrier for humans and other complex life, might have had a rather humbler origin.</div>

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NASA Begins Construction Of Mars Lander - 0 views

www.astrobio.net/...on-begin-2016-nasa-mars-lander

nasa mission mars lander planets solar system

shared by Astro Biology on 29 Aug 14 - No Cached

Astro Biology on 29 Aug 14

Do you know NASA has begun creation of 2016 Mars lander. This mission will investigate following points such as how earth like planets are formed, inner layered structure of core and many more. Want to know more about this mission?

<div class="cArrow"> </div><div class="cContentInner">Do you know NASA has begun creation of 2016 Mars lander. This mission will investigate following points such as how earth like planets are formed, inner layered structure of core and many more. Want to know more about this mission?</div>

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Astro Biology on 29 Aug 14

Do you know NASA has begun creation of 2016 Mars lander. This mission will investigate following points such as how earth like planets are formed, inner layered structure of core and many more. Want to know more about this mission?

<div class="cArrow"> </div><div class="cContentInner">Do you know NASA has begun creation of 2016 Mars lander. This mission will investigate following points such as how earth like planets are formed, inner layered structure of core and many more. Want to know more about this mission?</div>

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Facts About Origin Of Life On Earth - 0 views

www.astrobio.net/...sights-into-the-origin-of-life

origin of life on earth solar system planets nasa news

shared by Astro Biology on 06 Aug 14 - No Cached

Astro Biology on 06 Aug 14

Get complete knowledge on how life began on earth, solar system news and recent space exploration. You can now read all information at one place at Astrobiology Magazine.

<div class="cArrow"> </div><div class="cContentInner">Get complete knowledge on how life began on earth, solar system news and recent space exploration. You can now read all information at one place at Astrobiology Magazine.</div>

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Read Robotic Space Exploration - 0 views

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robotics spae exploration nasa news

shared by Astro Biology on 29 Jul 14 - No Cached

Astro Biology on 29 Jul 14

Explore latest space robots invention, news everything at one place. Get updated with current robotic discoveries with Astrobio.net.

<div class="cArrow"> </div><div class="cContentInner">Explore latest space robots invention, news everything at one place. Get updated with current robotic discoveries with Astrobio.net.</div>

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