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Topic: Foveon

	Foveon - Direct Image Sensors
		The Foveon X3 direct image sensor is the most advanced color image sensor ever developed.
		Foveon pioneered the development of the direct image sensor using the most advanced developments in semiconductor design, image processing, and signal processing.
		The layers of pixels are embedded in silicon to take advantage of the fact that red, green, and blue light penetrate silicon to different depths – forming the first and only image sensor that captures full color at every point in the captured image.
	www.foveon.com /article.php?a=67 (473 words)

	Steve's Digicams - Breaking News - Foveon 02/11/02 Press Release
		Foveon is the first and only company to use silicon color separation as a foundation for the design of color image sensors for digital cameras.
		Foveon's first customer for the Foveon X3 technology is Sigma Corporation, which is using the F7-35X3-A25B image sensor in the Sigma SD9 SLR digital camera.
		Foveon, Inc. was founded in 1997 by Dr. Carver Mead, a pioneer in solid-state electronics and VLSI design.
	www.steves-digicams.com /foveon_02112002_pr.html (1651 words)

	Photo News Today » Foveon Releases Highest Resolution Professional X3 Sensor
		Foveon’s proprietary X3 technology is the only image sensor technology that stacks red, green and blue pixels vertically, increasing the information density of the recorded image while simultaneously eliminating the color sampling artifacts found with other image sensors.
		Foveon Inc. was founded in 1997 by Dr. Carver Mead, a pioneer in solid-state electronics and VLSI design, and professor emeritus at the California Institute of Technology.
		Foveon X3 sensors are built using a pixel layering concept in which red, green, and blue pixels are stacked on top of each other.
	www.photonewstoday.com /?p=2369 (715 words)

	National Semiconductor and Foveon Inc.Collaborate on Breakthrough in Digital Photography
		Foveon said the key to manufacturing the new sensor was National's early implementation of its advanced 0.18-micron CMOS process technology.
		The Foveon sensor's resolution is three times sharper than the best of previously announced photographic CMOS image sensors and more than 50 times sharper than the resolution of the most commonly manufactured CMOS image sensors found in consumer digital cameras.
		Foveon's 16.8-megapixel sensor is the first image sensor of any size to be manufactured with 0.18-micron CMOS process technology, representing a two generation leap ahead of the CMOS imager industry.
	www.national.com /news/item/0,1735,540,00.html (1052 words)

	Pros and Cons of the Sigma SD10 Digital SLR Camera
		But the Foveon advantage was not supposed to be increased resolution, it was supposed to be that their sensor produced more accurate color (since each pixel had its own set of three photodetectors (RGB), rather than having to calculate the color of each pixel from adjoining pixels as is done on a Bayer sensor).
		Foveon claim to fame was supposed to be more accurate color, because the color of each spatial pixel would be calculated from the three layered photodetectors, rather than calculated from the colors of adjoining spatial pixels.
		Foveon clouds the issue of pixels by claiming that each of the three photodetectors that comprise each spatial pixel, should be counted as pixels.
	nordicgroup.us /sigma (7470 words)

	Sigma SD9 Review: 1. Introduction: Digital Photography Review (Site not responding. Last check: 2007-10-10)
		Foveon caused quite a stir back on the 11th February this year when they announced their revolutionary new X3 sensor.
		Foveon has recently decided to use new terminology to describe its sensor and the final output image, they have requested that I use that terminology in my review (I agreed the new terminology is more logical and easier to understand).
		Foveon's sensor instead of having a single photodetector at each pixel location has a multi-layered design which has the equivalent of a red, green and blue photodetector at each pixel location.
	www.dpreview.com /reviews/sigmasd9 (958 words)

	Meet the chip that will revolutionize digital photography
		He started Foveon Inc. in 1997 with the aim of improving the performance of digital cameras--first in high-end professional systems, and now, with the new sensor, in consumer models as well.
		Foveon is able to combine groups of pixels in such a manner that resolution is lowered while the ability to capture images quickly is enhanced.
		Foveon, however, takes this to a new level, and if its quality claims bear out in the marketplace, we may need to find a new way to express image quality in camera specifications.
	review.zdnet.com /4520-6033_16-4206944.html (852 words)

	Foveon Sensors (Site not responding. Last check: 2007-10-10)
		Foveon claims that there is no color filter array, which is required in other sensor layouts.
		Foveon supporters claim that there is no need for demosaicing because each pixel contains all the light for all colors.
		The Foveon curves are smoother and generally all three are broader.
	www.rags-int-inc.com /PhotoTechStuff/DigitalFilm/Foveon.html (557 words)

	Foveon X3 Pixel Page (Site not responding. Last check: 2007-10-10)
		Foveon's X3 sensor technology further stretched the relationship between pixel sensors and pixels in the output image file.
		This number is very misleading, as it suggests that the SD9 is in some sense in the same category as 3 to 4 MP cameras, when in the fact the SD9 is delivering image resolution and sharpness that is outstanding in the DSLR category of 6 to 14 MP.
		In response to this misleading information in the marketplace, Sigma and Foveon now agree and insist that if only a single megapixel number can be used, then the 10.2 MP number, based on the number of photodetectors, is the only possibility.
	www.x3f.info /technotes/x3pixel/pixelpage.html (1565 words)

	Foveon introduces the first small format full color image sensor
		Foveon announces the Foveon F19 sensor, a 1/1.8-inch 4.5 Megapixel CMOS direct image sensor that incorporates Foveon's breakthrough X3 technology to directly capture color in three layers, just like film.
		Foveon X3 image sensors are the world's only direct image sensors, which capture red, green, and blue light at every pixel location, and are the first image sensors that leverage silicon's inherent color separation property.
		Foveon X3 technology is highly scalable for a wide range of cameras including digital still/video cameras, PDAs, cell phones, security cameras, and scientific cameras.
	www.dcviews.com /press/Foveon-F19.htm (765 words)

	Foveon X3 exclusive preview: Digital Photography Review (Site not responding. Last check: 2007-10-10)
		Foveon provided dpreview with an early prototype sensor in a standard Foveon studio body (the same used for their Foveon II Portrait Camera).
		Foveon have (understandably) asked that I do not post full size samples from this very early sensor but instead I can provide a few crops from some of my test shots to give you an impression of how much more resolution and colour detail the X3 sensor is capable of producing.
		Images from the new Foveon X3 sensor are more reminicent of super high quality slide scans, but go even beyond that with no trace of grain.
	www.dpreview.com /news/0202/02021103foveonx3preview.asp (486 words)

	BBC News \| SCI/TECH \| Digital camera chip challenges film
		A new chip developed by the Silicon Valley start-up Foveon is said to take digital images with colours as good as conventional 35mm film.
		Experts say the challenge for Foveon will be to persuade the giants of digital photography like Sony and Kodak to adopt the new technology.
		Foveon's X3 microchip works by capturing three times the colour resolution of comparable image sensors found in today's digital cameras.
	news.bbc.co.uk /1/hi/sci/tech/1842673.stm (400 words)

	Firm says chip to sharpen digital photos \| CNET News.com
		Foveon unveils its X3 image sensor chip, saying it will improve the quality of digital photographs by capturing a larger amount of color resolution.
		Foveon on Monday unveiled its new X3 image sensor chip, saying it dramatically improves the quality of digital photographs by capturing three times the color resolution of comparable image sensors found in today's digital cameras.
		Foveon, however, says the sensor captures the primary colors at each pixel, creating sharper, more brilliant color.
	news.com.com /2100-1040-833960.html (388 words)

	Foveon X3 sensor - Wikipedia, the free encyclopedia
		As of 2005, the Foveon X3 sensor is only used in the Sigma SD9 and SD10 digital SLR cameras and the Polaroid x530 compact digital camera.
		The Foveon X3 sensor is difficult to classify by megapixel (MP) count compared to mosaic sensor cameras, in which the location count and photosensor count are the same.
		The Foveon's advantage is offset by the matrixing required to reconstruct color information from the sensed raw data, which reportedly results in a Foveon sensor with large photosites being unable to equal the low light performance of more conventional sensors with half the photosite area.
	en.wikipedia.org /wiki/Foveon_X3_sensor (642 words)

	NEWS! - Foveon improves its X3 Pro 10M image sensor
		Our reading of the definition suggests that Foveon's original approach - referring to the sensor's luminance resolution appended with "x 3" - was probably closest to the intent of the document.
		Foveon X3 technology directly converts light of all colors into useful signal information at every pixel location—no light absorbing filters are used to block out light.
		The new Foveon image sensor is a result of design and fabrication process improvements that result in higher image quality and superb color fidelity.
	www.imaging-resource.com /NEWS/1067212802.html (1245 words)

	Foveon versus Beyer sensors (Site not responding. Last check: 2007-10-10)
		There are cameras with Foveon sensors, and there are those that use a single layer chip known also as a 'mosaic sensor' or 'colour filter array'.
		The Foveon chip captures colour by exploiting the fact that blue light waves are shorter than green light waves, which in turn are shorter than red ones.
		Foveon colors aren't the result of digital interpolation, but are rather optical, as each photosite has complete RGB data.
	www.sd9.org.uk /sensors.htm (1748 words)

	Foveon's revolutionary X3 sensor: Digital Photography Review (Site not responding. Last check: 2007-10-10)
		When Foveon first contacted me about this technology I nearly fell off my chair, the similarity to my April fool's joke of 2000 is uncanny.
		The remaining two-thirds of incident light is absorbed by color filters and not used – which is a significant reduction in the efficiency of the pixels.
		Foveon’s first customer for the Foveon X3 technology is Sigma Corporation, which is using the F07-35X3-A25B image sensor in the Sigma SD9 SLR digital camera.
	www.dpreview.com /news/0202/02021101foveonx3.asp (1720 words)

	Sigma SD-9 Foveon Review by Mike Gondek
		Foveon has drawn much attention and hopefully their technology will be found in more products soon.
		Foveon made a major advancement in improving the image sensor, other technologies are out now such as the Octagonal Super CCD by Fuji.
		Foveon has been slow to develop a sensor with more megapixels and especially in getting their chip inside cameras.
	www.creativecow.net /articles/gondek_mike/Foveon (1291 words)

	Geek.com Geek News - Foveon X3 image sensor: color on 1 chip
		Foveon uses the natural tendency of silicon to absorb different colors of light at different depths to capture three colors in a single chip.
		Foveon X3 chips are manufactured using standard.18 micron CMOS technology, meaning that Foveon can mass produce them at any.18 micron fabrication plant--just as Intel or AMD produce their chips.
		SlingPlayer for the Dash and Skype for WM Smartphones
	www.geek.com /news/geeknews/2002feb/chi20020212010228.htm (2850 words)

	creativepro.com - Foveon X3 Image Sensor Receives 2002 'Best of What's New Award' from Popular Science Magazine
		Foveon, Inc., a technology leader in high quality digital photography, announces that the new Foveon® X3™ image sensor has been chosen by Popular Science magazine to receive the "Best of What's New" Grand Award in the Photo Category.
		The Foveon X3 sensor was chosen by CHIP magazine because of its revolutionary technology that will have far reaching impact on the digital camera and video markets.
		The new line of Foveon image sensors utilize the company's new Foveon X3 technology and are the world's first full-color image sensors that capture red, green and blue light at each and every pixel.
	www.creativepro.com /story/news/18184.html (621 words)

	Sigma SD9 Digital Camera Preview and Foveon Discussion (Site not responding. Last check: 2007-10-10)
		According to Foveon this sensor is the world's first full-color image sensor that captures red, green, and blue light at each and every pixel.
		Foveon does not have an exclusive agreement with Sigma and is actively engaged with other major digital camera manufacturers.
		The Foveon technology has an advantage over the conventional CCD technology since the aggregate electrical signal from each pixel is three times better that that of conventional CCDs.
	www.photo.net /sigma/sd9 (12740 words)

	Wired 11.03: Start
		Sharp, vibrant, incredibly detailed: The pictures produced by Foveon's X3 image sensor chip are seductive evidence that pixels will displace film.
		Foveon found a way to use standard silicon as an analog color separator.
		One of the optical properties of silicon is that different wavelengths of light penetrate it to different depths.
	www.wired.com /wired/archive/11.03/start.html?pg=8 (607 words)

	Foveon X3 5M 1/1.8" type sensor: Digital Photography Review (Site not responding. Last check: 2007-10-10)
		Foveon has released specifications for the 'Foveon X3 5M CMOS Image Sensor'.
		The Foveon X3 5M is a 1/1.8-inch CMOS image sensor that incorporates the breakthrough Foveon X3 technology.
		Foveon X3 image sensors capture full-measured color images through a unique three-layer pixel sensor design.
	www.dpreview.com /news/0308/03080803foveonx3_5m.asp (482 words)

	PC World - Polaroid Digicam Sports Foveon Chip
		Foveon?s X3 image sensor captures color in three layers, each of which senses one of the three primary colors of light--red, green, or blue.
		Only Foveon's own image-editing software can manipulate the X3F file format, but of course JPEG images can be edited by any number of applications.
		However, Foveon's editing application supports the X3 Fill Light tool, which Zarakov says simulates the photographic method of "dodge and burn" by adding extra light to shadows, while maintaining highlight detail.
	www.pcworld.com /news/article/0,aid,114757,pg,1,00.asp (636 words)

	National Semiconductor Partners With Foveon To Manufacture Breakthrough Sensor For Digital Photography
		Foveon Inc., a technology leader in high quality digital photography, created the new Foveon X3 image sensor, the world's first color image sensor that captures red, green and blue light at each and every pixel.
		Foveon partnered with National Semiconductor, one of the company's initial investors, to develop the fabrication process for the Foveon X3 technology.
		Foveon is the first and only company to use silicon color separation for designing color image sensors for digital cameras.
	www.national.com /news/item/0,1735,727,00.html (588 words)

	Foveon vs. CMOS image sensor - Canon Digital Photography Forums
		However if Foveon comes out with a 6 or 8 mp X3 sensor, it would likely be a very different story.
		At first sight the Foveon sensor sounds like a great idea, but it's not 10 MP as Sigma wants us to believe, and there are some downsides like the noise issue.
		I can't speak to Sigma's implementation of the Foveon sensor, but that cross contamination should in theory (within the sensor) be a good thing if it were properly used.
	photography-on-the.net /forum/showthread.php?t=80020 (2326 words)

	Rob Galbraith DPI: Foveon announces new sensor
		Foveon today has announced the X3, a new type of digital camera sensor that is able to measure and record the proportion of red, green and blue light striking an individual pixel.
		Foveon claims the X3 offers better sharpness and fewer unwelcome image artifacts than has been possible previously from this class of imaging sensor.
		Foveon's web site provides extensive information on the new technology, as well as sample photos.
	www.robgalbraith.com /bins/content_page.asp?cid=7-4540-4555 (151 words)

	New Foveon Chip? - PhotographyBLOG Forums
		I would expect Foveon to do their homework and probably come up with a smaller pixel pitch with as good DR and other parameters as the previous model, which would give them even more space for more pixels.
		I think Foveon's concept eventually would be the closest we have to the standard set by film.
		Both Foveon and Sigma should very critically evaluate their products this time, and ensure that they come up with some good solutions.
	www.photographyblog.com /forums/index.php?showtopic=313 (691 words)

	NEWS! - Foveon licenses X3 to National Semiconductor
		In September 2000 the companies jointly announced a 16.8 megapixel CMOS imager, and by February 2002 when the X3 sensor was first unveiled, National was both an investor in Foveon, as well as being the only company announced as a manufacturer for the X3 image sensors.
		Foveon has gained industry wide recognition in digital photography as a leader in the development of image sensor technologies for digital cameras.
		The most recent innovation by Foveon is the Foveon X3 image sensor, the world's first full-color image sensor to capture red, green and blue light at every location in the image plane.
	www.imaging-resource.com /NEWS/1047328311.html (776 words)

	Foveon
		The Foveon X3 CMOS direct sensor technology represents a revolution in the detection of color data.
		With the Foveon X3 direct color imaging technology, sensors can now detect full color at every pixel.
		Only Foveon X3 direct image sensors have this new technology and only Alternative Vision has the development tools to help you implement it in your designs.
	www.alt-vision.com /foveon.htm (165 words)

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