Sabrina Kemeny

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Sabrina Kemeny is an American entrepreneur and engineer known for developing the CMOS image sensor. [1]

Active pixel sensor an image sensor consisting of an integrated circuit

An active-pixel sensor (APS) is an image sensor where each picture element ("pixel") has a photodetector and an active amplifier. There are many types of integrated circuit active pixel sensors including the complementary metal–oxide–semiconductor (CMOS) APS used most commonly in cell phone cameras, web cameras, most digital pocket cameras since 2010, in most digital single-lens reflex cameras (DSLRs) and Mirrorless interchangeable-lens cameras (MILCs). Such an image sensor is produced using CMOS technology, and has emerged as an alternative to charge-coupled device (CCD) image sensors.

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Early years and education

Kemeny was born in Long Island, New York to Jewish immigrants. After graduating from public high school one year early, she went attended Nursing School in Vermont.  Although quickly rising to the position of intensive care charge nurse, she felt frustrated with the lack of upward mobility available to her and so returned to school in her mid-twenties.  She received a BA (1986) from Columbia University’s General Studies School and a BS (1986), MS (1987) and Ph.D. (1991) in Electrical Engineering from Columbia University as well.

Long Island island in New York, United States of America

Long Island is a densely populated island off the East Coast of the United States, beginning at New York Harbor approximately 0.35 miles (0.56 km) from Manhattan Island and extending eastward into the Atlantic Ocean. The island comprises four counties in the U.S. state of New York. Kings and Queens Counties and Nassau County share the western third of the island, while Suffolk County occupies the eastern two-thirds. More than half of New York City's residents now live on Long Island, in Brooklyn and Queens. However, many people in the New York metropolitan area colloquially use the term Long Island to refer exclusively to Nassau and Suffolk Counties, which are mainly suburban in character, conversely employing the term the City to mean Manhattan alone.

New York (state) State of the United States of America

New York is a state in the Northeastern United States. New York was one of the original thirteen colonies that formed the United States. With an estimated 19.54 million residents in 2018, it is the fourth most populous state. In order to distinguish the state from the city with the same name, it is sometimes referred to as New York State.

Jews ancient nation and ethnoreligious group from the Levant

Jews or Jewish people are an ethnoreligious group and a nation, originating from the Israelites and Hebrews of historical Israel and Judah. Jewish ethnicity, nationhood, and religion are strongly interrelated, as Judaism is the ethnic religion of the Jewish people, while its observance varies from strict observance to complete nonobservance.

Research and development

As a graduate student at Columbia University, Kemeny worked in Eric Fossum's research group, working on CCD focal-plane image processing. [2] [3] In 1991, she joined NASA's Jet Propulsion Laboratory (JPL) where she worked on the hardware (IC) implementation of neural network processors. She then became a member of JPL's "active-pixel" image sensor team where she co-invented the revolutionary CMOS active-pixel sensor technology that is at the core of every cell phone and digital camera today. The United States Space Foundation inducted her into the Space Technology Hall of Fame for her pioneering work. [4]

Eric R. Fossum is an American physicist and engineer known for developing the CMOS image sensor. He is currently a professor at Thayer School of Engineering in Dartmouth College.

NASA space-related agency of the United States government

The National Aeronautics and Space Administration is an independent agency of the United States Federal Government responsible for the civilian space program, as well as aeronautics and aerospace research.

Jet Propulsion Laboratory Research and development center and NASA field center in California, US

The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in La Cañada Flintridge, California, United States, though it is often referred to as residing in Pasadena, California, because it has a Pasadena ZIP Code.

Entrepreneur

In 1995, Kemeny with her then husband Eric Fossum co-founded Photobit Corporation to commercialize the fledgling CMOS sensor technology. [5] As Photobit's CEO, Kemeny negotiated an exclusive license agreement with the California Institute of Technology (Caltech) for JPL's camera chip technology and oversaw strategic direction, day-to-day operations and financing until the successful sale to Micron in 2001. [6] She is currently co-founder of Tap Systems Inc., a company that produces a wearable keyboard and mouse. [7] [8] [9]

California Institute of Technology private research university located in Pasadena, California

The California Institute of Technology (Caltech) is a private doctorate-granting research university in Pasadena, California. Known for its strength in natural science and engineering, Caltech is often ranked as one of the world's top-ten universities.

Micron Technology American multinational corporation based in Boise, Idaho which produces many forms of semiconductor devices.

Micron Technology, Inc. is an American producer of computer memory and computer data storage including dynamic random-access memory, flash memory, and USB flash drives. It is headquartered in Boise, Idaho. Its consumer products are marketed under the brands Crucial and Ballistix. Micron and Intel together created IM Flash Technologies, which produces NAND flash memory. It owned Lexar between 2006 and 2017.

Achievements and awards

Kemeny has published over 20 technical papers and holds 9 US patents. She has received several honors including:

L'Oréal S.A. is a French personal care company headquartered in Clichy, Hauts-de-Seine with a registered office in Paris. It is the world's largest cosmetics company and has developed activities in the field concentrating on hair colour, skin care, sun protection, make-up, perfume, and hair care.

UNESCO Specialised agency of the United Nations

The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations (UN) based in Paris. Its declared purpose is to contribute to peace and security by promoting international collaboration in education, sciences, and culture in order to increase universal respect for justice, the rule of law, and human rights along with fundamental freedom proclaimed in the United Nations Charter. It is the successor of the League of Nations' International Committee on Intellectual Cooperation.

LOréal-UNESCO For Women in Science Awards scientific award

The L'Oréal-UNESCO For Women in Science Awards aim to improve the position of women in science by recognizing outstanding women researchers who have contributed to scientific progress. The awards are a result of a partnership between the French cosmetics company L'Oréal and the United Nations Educational, Scientific and Cultural Organization (UNESCO) and carry a grant of $100,000 USD for each laureate.

Related Research Articles

Charge-coupled device device for the movement of electrical charge

A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value. This is achieved by "shifting" the signals between stages within the device one at a time. CCDs move charge between capacitive bins in the device, with the shift allowing for the transfer of charge between bins.

Pixel a physical point in a raster image

In digital imaging, a pixel, pel, or picture element is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.

Thermographic camera device that forms an image using infrared radiation

A thermographic camera is a device that forms a heat zone image using infrared radiation, similar to a common camera that forms an image using visible light. Instead of the 400–700 nanometre range of the visible light camera, infrared cameras operate in wavelengths as long as 14,000 nm (14 µm). Their use is called thermography.

LBCAST is a type of photo sensor which the manufacturer claims is simpler and thus smaller and faster than CMOS sensors. It was developed over ten years by Nikon, in parallel with other manufacturer's development of CMOS, and resulted in shipping product in 2003.

Camera phone mobile phone which is able to capture still photographs

A camera phone is a mobile phone which is able to capture photographs and often record video using one or more built-in digital cameras. The first camera phone was sold in 2000 in Japan, a Sharp J-SH04 J-Phone model, although some argue that the SCH-V200 and Kyocera VP-210 Visual Phone, both introduced months earlier in South Korea and Japan respectively, are the first camera phones.

High-speed photography Photography genre

High-speed photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high-speed photography as any set of photographs captured by a camera capable of 69 frames per second or greater, and of at least three consecutive frames. High-speed photography can be considered to be the opposite of time-lapse photography.

Image sensor device that converts an optical image into an electronic signal

An image sensor or imager is a sensor that detects and conveys information used to make an image. It does so by converting the variable attenuation of light waves into signals, small bursts of current that convey the information. The waves can be light or other electromagnetic radiation. Image sensors are used in electronic imaging devices of both analog and digital types, which include digital cameras, camera modules, medical imaging equipment, night vision equipment such as thermal imaging devices, radar, sonar, and others. As technology changes, digital imaging tends to replace analog imaging.

Color filter array

In photography, a color filter array (CFA), or color filter mosaic (CFM), is a mosaic of tiny color filters placed over the pixel sensors of an image sensor to capture color information.

OmniVision Technologies Inc. is a corporation that designs and develops advanced digital imaging technologies and products for use in mobile phones, notebooks, netbooks and webcams, security and surveillance cameras, entertainment, digital still and video cameras, automotive and medical imaging systems. Headquartered in Santa Clara, California, OmniVision Technologies has offices in the USA, Western Europe and Asia, including a design center and testing facility in Shanghai, China.

Image sensor format camera parts, features and technologies

Note: If you came here to get a quick understanding of numbers like 1/2.3, skip ahead to table of sensor formats and sizes. For a simplified discussion of image sensors see image sensor.

Rolling shutter image capture method

Rolling shutter is a method of image capture in which a still picture or each frame of a video is captured not by taking a snapshot of the entire scene at a single instant in time but rather by scanning across the scene rapidly, either vertically or horizontally. In other words, not all parts of the image of the scene are recorded at exactly the same instant. This produces predictable distortions of fast-moving objects or rapid flashes of light. This is in contrast with "global shutter" in which the entire frame is captured at the same instant.

Canesta is a fabless semiconductor company that was founded in April, 1999, by Cyrus Bamji, Abbas Rafii, and Nazim Kareemi.

Back-illuminated sensor

A back-illuminated sensor, also known as backside illumination sensor, is a type of digital image sensor that uses a novel arrangement of the imaging elements to increase the amount of light captured and thereby improve low-light performance.

Aptina Imaging Corporation was a company that sold CMOS imaging products. Their CMOS sensors were used in Nikon V1, Nikon J1, Nikon V2. By 2009 year Aptina had a 16% share of the CMOS image sensors market, with revenue estimated at $671 million. The company was acquired in 2014 by ON Semiconductor

Bedabrata Pain is an Indian scientist turned film director, producer and screenwriter. Bedabrata Pain was also a member of the team that invented the CMOS image sensor. Bedabrata Pain has also won National Film Award for Best Debut Film of a Director for Chittagong.

An oversampled binary image sensor is an image sensor with non-linear response capabilities reminiscent of traditional photographic film. Each pixel in the sensor has a binary response, giving only a one-bit quantized measurement of the local light intensity. The response function of the image sensor is non-linear and similar to a logarithmic function, which makes the sensor suitable for high dynamic range imaging.

FASTCAM Ultima 512

The Photron FASTCAM ULTIMA 512 is a 512 × 512 high-speed camera. It is part of the Photron FASTCAM line of cameras. Photron FASTCAM ULTIMA 512 was introduced in 2001.

Fujifilm X-Trans sensor

The Fujifilm X-Trans is a CMOS sensor developed by Fujifilm and used in its Fujifilm X-series cameras. Unlike most CMOS sensors featuring a conventional Bayer filter array, X-Trans sensors have a unique 6 by 6 pattern of photosites. Fujifilm claims that this layout can minimise moiré effects, and increase resolution by eliminating the need for a low-pass filter.

References

  1. Pepitone, Julianne (2018-07-02). "Chip Hall of Fame: Photobit PB-100". IEEE Spectrum: Technology, Engineering, and Science News. Retrieved 2019-03-02.
  2. Fossum, Eric; Kemeny, Sabrina (January 1996). "Camera on a Chip" (PDF). Natural Science: 178–185.
  3. "Sabrina E. Kemeny Inventions, Patents and Patent Applications - Justia Patents Search". patents.justia.com. Retrieved 2019-03-02.
  4. Foundation, Space (2017-11-03). "Active Pixel Sensor". Space Foundation. Retrieved 2019-03-03.
  5. Pepitone, Julianne (2018-07-02). "Chip Hall of Fame: Photobit PB-100". IEEE Spectrum: Technology, Engineering, and Science News. Retrieved 2019-03-03.
  6. "Micron turns up the heat in the image sensor market". DIGITIMES. Retrieved 2019-03-03.
  7. "New wearable hardware interface, Tap Systems, opens SDK to developers". TechCrunch. Retrieved 2019-03-02.
  8. Barber, Lynsey (2016-05-12). "This startup wants to kill off the Qwerty keyboard". www.cityam.com. Retrieved 2019-03-02.
  9. "The Tap wearable lets you type on any surface to send messages". VentureBeat. 2017-11-27. Retrieved 2019-03-02.