It's the worst thing about phone cameras (except for the image noise, poor low-light performance, desaturated colors and incessant motion blur): the picture delay. Scalado says they've managed to eliminate it by constantly recording and displaying actual JPG images of the frame in real time. In other words, when you take a picture, rather than calling the camera to snap a completely new hi-res image, the Scalado Camera Engine simply saves what you can already see. Popular sensor makers Aptina, OmniVision Samsung and MtekVision are already licensing with the tech, so your camera phone experience might become slightly more bearable before too long. [Slashphone]

Forensic specialists can now pinpoint the exact make and model of a camera simply by analyzing the pixels in digital photos. This technique would be useful in the future for tracking down criminals, such as kidnappers who've leaked photos of their hostages to the media. Read on to find out how it works.

When a digital camera captures a photo, the camera creates each pixel using a charge-coupled device—a microchip that is made up of millions of capacitors that get electrical charges depending on how intense the lighting is in a certain spot. Each of these capacitors has a lens and a color filter that creates one single pixel from a mosaic made up of red, green and blue filters.

The colors and brightness levels that we can physically see in our digital pictures are created by a demosaicing software, which is custom built for every camera model due to each camera's individual specs and subtle differences. Because of this, a certain camera model will generate distinct pixels—and unique relationships between its neighboring pixels—which can pinpoint the exact make and model of the camera.

Knowing this information could greatly help forensics teams since each digital camera has a shelf life of about 18 months, which would significantly narrow the pool of where and when it was sold. Although it is not perfect, early tests have shown this technique has proven to be 90 percent accurate, which is still an A in my book! [New Scientist via Slashdot]

This is old-hat, but Flickr is actually a great comparison tool for comparing cameras. Just visit Flickr’s camera finder, select the brand and model, and you’re instantly presented with a selection of photos taken with that particular camera.

As an example, check out how a picture taken with the Nokia N95 compares with an N96 photo after the break

Nokia N95:

Nokia N96:

(images by a_sufian_k and Robert Webbe)

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