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Jac Londe

Lytro's new light field camera lets you focus after you take a picture - 0 views

arstechnica.com/...s-after-you-take-a-picture.ars

camera field light focus picture

shared by Jac Londe on 21 Oct 11 - No Cached
  • The tiny Lytro is the most technologically advanced point-and-shoot ever made.
  • Imaging scientist Ren Ng's years of research into capturing "light fields" using increasingly high-resolution digital imaging sensors have finally come to fruition. Ng's company, Lytro, unveiled its first consumer product on Wednesday—a digital camera capable of capturing "living images" that can be infinitely refocused after capture. While the new camera is designed to change the way we capture and share snapshots, the technology has the potential to radically alter how all photographs are made.
  • The new Lytro camera is a small rectangular tube of aluminum, with an f/2 lens on one end and a small 2" touchscreen on the other. The only controls are a power button, shutter button, and a slider to control the 8x zoom range of its lens. There are no controls for aperture, shutter speed, or focus—because the Lytro doesn't need them. The Lytro is probably the closest thing to "point-and-shoot" photography that has ever existed in the digital era.
  • ...3 more annotations...
  • Capturing light fields
  • Future of photography
  • Further reading
Jac Londe

en:users:manual:0.4.3b:index [Pencil Wiki ] - 1 views

pencil-animation.org/...doku.php

animation manual pencil software tutorial tools freeware

shared by Jac Londe on 28 Jul 12 - Cached
  • A Pencil document is organized in layers. There are currently four types of layers: bitmap image, vector image, sound and camera. The Time Line win
  • dow at the bottom of the screen shows the existing layers. By default, a new document contains a bitmap layer and a vector layer on top of it, but you can add and delete layers as you wish (using either the or buttons next to “Layers”, or the menu Layer)
  • The names of the layers can be changed to represent what you've put in each by double-clicking on the name of the layer in the timeline. A window will pop up, allowing you to edit the layer's name. Click OK when you have changed it to the name you want and the new name will appear in the timeline.
  • ...3 more annotations...
  • Each layer has a track which enables you to change it as a function of time. This is done by inserting keys (the little gray rectangles) at certain frames in the track. Each key contains information about what the layer should show or produce at the frame where the key is located. To add or delete keys at a particular frame in a layer track, use the or buttons next to “Keys” (shortcut: type “return” to create a new frame). For image layers (ie bitmap and vector), each key corresponds to a different image. The sequence of these images creates an animation. The current frame is indicated by the red bar and can be changed by moving the red bar to scrub through your animation (or use the left and right arrows). To play the animation, use the controls in the time line. Note that you can loop the animation, as well as set the number of frames per seconds. (note, you can loop and change the frame rate of the animation whilst the animation is playing; this is great in terms of frame rate to find the best speed of your animation).
  • To select a layer that you want to edit, just click on it in the layer list (or use the up and down arrows). You can change the layer order by dragging their name. The order affects the way image layers are displayed on top of each other; it does not affect the sound and camera layers. Layer properties, such as their name, can be changed by double-clicking on the name (see above). Layers can be activated or deactivated by clicking the circle at the very left of their icon. A deactivated image layer is hidden from the canvas view.
  • If the currently selected layer is an image layer, it is shown in the canvas view at full opacity. By default, the other image layers are semi-transparent, to help you focus on the selected layer. However, if you wish to see all the image layers at full opacity (as they will appear in the final rendering), press the circle above all the layers to turn it black. If on the contrary, you want to concentrate on the selected layer and hide all the other layers, press again the circle to turn it blank.
Jac Londe

>Wikileaks - The Spy files - 0 views

wikileaks.org/the-spyfiles.html

wikileaks spyfiles

shared by Jac Londe on 01 Dec 11 - No Cached
  • WikiLeaks: The Spy Files
  • Mass interception of entire populations is not only a reality, it is a secret new industry spanning 25 countries
  • International surveillance companies are based in the more technologically sophisticated countries, and they sell their technology on to every country of the world. This industry is, in practice, unregulated. Intelligence agencies, military forces and police authorities are able to silently, and on mass, and secretly intercept calls and take over computers without the help or knowledge of the telecommunication providers. Users’ physical location can be tracked if they are carrying a mobile phone, even if it is only on stand by.
Jac Londe

Ancient Greek calculating device continues to reveal secrets - 0 views

www.physorg.com/...eek-device-reveal-secrets.html

greek calculating ancient machine onde

shared by Jac Londe on 12 Apr 11 - No Cached
  • Antikythera mechanism fragment. The mechanism consists of a complex system of 32 wheels and plates with inscriptions relating to the signs of the zodiac and the months.
  • the Greeks of 150 to 100 BCE knew far more about gears and calculating machines
Jac Londe

Light fields and computational photography - 0 views

graphics.stanford.edu/...lightfield

computational photography fields light

shared by Jac Londe on 21 Oct 11 - Cached
  • Light fields and computation
  • al photography
  • Overview The light field, first described in Arun Gershun's classic 1936 paper of the same name, is defined as radiance as a function of position and direction in regions of space free of occluders. In free space, the light field is a 4D function - scalar or vector depending on the exact definition employed. Light fields were introduced into computer graphics in 1996 by Marc Levoy and Pat Hanrahan. Their proposed application was image-based-rendering - computing new views of a scene from pre-existing views without the need for scene geometry. (A workshop on image-based modeling and rendering was held at Stanford in 1998.)
Jac Londe

water barons - 0 views

www.globalresearch.ca/...5383274

water

shared by Jac Londe on 26 Mar 15 - No Cached
  • Jac Londe on 26 Mar 15
     
    Mega-banks and investing powerhouses such as Goldman Sachs, JP Morgan Chase, Citigroup, UBS, Deutsche Bank, the Blackstone Group, Allianz, and HSBC Bank, among others, are consolidating their contr...
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