July 2013 ~ engineering information technology

ASET Presents Stacked Sensors Demonstrators

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Recently disbanded Japan Association of Super-Advanced Electronics Technologies (ASET) presents its progress in 3D TSV chips stacking, its TSV process flow and application to image sensors:

FBK Gain-Modulated APD ToF Camera Demo

FBK (Trento, Italy) published a Youtube video about its SOI (Smart Optical Sensors) research unit, also featuring a demo of its Gain Modulated APD 3D camera:

Geo Semi Announces Geometric Processing Engine

Geo Semiconductor announces the GW3300 and GW3400 programmable geometric processors. The GW3300 integrates fully programmable geometry processing engine can correct for complex lens distortion, perspective and rotational misalignment, as well as brightness nonuniformity in real time with as low as 1/6 frame of latency. The GW3400 integrates the above GW3300 features with an Apical ISP with HDR. The Apical ISP applies different processing to each pixel of each video frame to pull out hidden detail in shadows and highlights while preserving colors, local contrast and natural appearance. The ISP also has support for HDR sensors.

The eWARP features include pincushion/barrel distortion correction, keystone correction, rotational misalignment correction, stitching of multiple cameras, stitching of multiple projectors, digital calibration, custom lens design, and ePTZ (electronic Pan, Tilt, and Zoom). Data is processed with 1/32 pixel accuracy for:

Precise convergence, alignment, and stitching of cameras and projectors
Precise correction of lens distortion, including ultra wide angle lenses
Supporting custom and tailored innovative lens designs
Factory, field, and self-calibration

Feature Summary:

190° WFOV Fisheye Lens image restoration with increased resolution and Zero Content Loss
533MHz DDR3 SDRAM supporting high resolutions
Projection distortion correction
Electronic Pan / Tilt / Zoom
16b pipeline in HDR/WDR ISP
Supports resolutions from 720x480 up to 4kx4k
360 degree rotation correction

GW3400 Block Diagram

Intel on Camera Communications

Rick Roberts from Intel Labs presented "On Study Group Status for Camera Communications" at IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs):

Imaging Forum's 1st ADC Session is Fully Booked

Albert Theuwissen posts that the first ADC session of Imaging Forum scheduled for Dec. 16-17, 2013 is fully booked now. All new registrations are automatically linked to the second session of the forum scheduled for Dec. 19-20, 2013, which has the same agenda. There are no plans for the third session.

Rambus: "No More Patent Lawsuits"

Korea IT Times quotes Rambus CMO Jerome Nadel visited South Korea in June: "Rambus will not go for patent infringement lawsuits from now on. Our strategy for the IP licensing business has shifted to mutual cooperation. The ongoing patent lawsuit against SK Hynix will be our last and we will remove the stigma of being labeled as a patent troll." Rambus is said to be transforming into a communications semiconductor company that covers sensor and network technologies.

Meanwhile, Ronald Black, Rambus CEO, has shown a block diagram of Binary Pixel test chip in his recent presentation at India Electronics and Semiconductor Association (Youtube playlist is here, part 2, starting at 10:10). This looks like a different test chip from the one published a month ago.

Samsung Starts Mass Production of 13MP, 1.1um Pixel Sensor for Galaxy S4, Note III

Korea IT Times reports that Samsung System LSI Division has launched a mass production of 13MP image sensor for smartphones this May. The newspaper's source said, "Samsung Electronics’ mobile communications division is planning to order 80-90 million CISs for 13 megapixel camera modules this year." Up to recently, the main supplier of sensors in this category was Sony. Now, Samsung LSI joins it too.

Apparently, the article is talking about S5K3L2 sensor, which is still marked as sampling at Samsung web site. The newspaper says that the noise and color have been improved over the previous generation 1.1um sensor, possibly talking about the announced in 2011 S5K3L1Y.

Samsung Q2 2013 earnings report forecasts strong growth in sales of high resolution image sensors:

Sharp Shows its 1st CMOS Sensor Product

While Cadence has already announced that Sharp uses its CAD tools for CMOS sensor design, the last year's Sharp catalog listed only CCDs. The new catalog shows a CMOS sensor, for the first time. The new 14.5MP RJ53Z1BA0LT is based on 1.4um pixels and features 1080p60 mode:

SK Hynix Sampling 1.12um Pixel Sensor

SK Hynix Q3, 2013 Databook lists a new 8MP 1/4-inch image sensor, the Hi-841 (YACG4A1C), featuring 1.12um pixels. The sensor's speed is 30fps at full resolution, 10b RAW output. The product status is marked as "sampling":

Omnivision Files for ToF Sensor Patent

Omnivision's patent application US20130181119 "Shared time of flight pixel" by Manoj Bukumandla and Sasidhar Saladi describes a ToF image sensor based on in-phase/out-phase sensing of a pulsed illuminator. It's nice to see yet another major image sensor manufacturer working on ToF concepts.

Omnivision's ToF Pixel

Nikon Proposes Stacking of AF and Imaging Sensor Layers

Nikon patent application US20130182173 "Solid-state imaging device and electronic camera" by Hironobu Murata proposes a nice idea to combine a dedicated AF sensor with an imaging sensor without losing any light (in theory). The idea is simple: RGB color filter array does not use roughly 2/3 of the light in each pixel, why not use the lost light by a complementary-colored organic AF sensor stacked on top on the regular Bayer-pattern sensor:

SCOPE OF CIVIL ENGINEERING INDIA

Engineering is one of the most important fields in the world today; and civil engineering is the one that is at the foremost and can get you a job easily. It is the oldest branch which is still one of the relevant ones. With new buildings springing up every day, there are scores of jobs for civil engineers- graduates fresh and experienced alike, can easily find a job that is to their liking. Therefore, it is not hard to believe the high demand to join for a civil engineering course today. The job aspects come from small contractors to large ones; government agencies such as PWD, etc; consultancies and what not. The top companies include Shapoorji & Pallonji, Shobha Developers, L&T, DLF; and the list is endless. The fact i understood is that ones profile must be good. Every student undergoes internship during their course and for you to be outstanding and to get an upper hand in placements it is always better to do internship abroad during your engineering course.

Most people consider civil engineering to be about building skyscrapers and bridges. But it is not that alone. It is one of the vastest subjects today and include so may aspects and specializations to it. It is not called the mother of engineering just for the heck of it.

One of the most common aspects would be construction engineering and management; in which everything regarding construction is dealt with. Various management techniques and how it is carried out are addressed. This is the aspect that people are most familiar with. People are used to civil engineers hard in hard hats holding various drawings and leading construction teams.

Structural engineering is the facet of civil engineering that has made the skyscrapers possible. Structural engineers make sure that all the elements of a building, dam, or any such structure, are strong enough to do the designated work. Transportation engineering is the part in which road design and traffic analysis are done. It is where all the basic planning for the country's transport system is done. Geotechnical engineering deals with soil and rock, and how they affect construction, and it also deals with landscaping and ground improvement. Geotechnical engineering also is used to help design and maintain tunnels and underground structures. Water resources engineering is another aspect of civil engineering which is gaining importance. It deals with anything and everything related to water. Environmental engineering has come into huge importance today due to lack of waste management and their affects on the environment.

It is no wonder that the need for civil engineers has grown considerably in the last few years thanks to the growing needs of the present generation. The scope of civil engineering is vast; with so many specializations to choose from and so many jobs to pick from. And the oldest branch is not going to go out of fashion any time soon...

You can also go for higher studies such as M.Tech or MS to make your career firm. But If you are going for M.Tech i highly recommend to do it in IIT's and NIT's. You can also do MS in India and abroad as well. M.Tech mainly consists of engineering while MS consists of engineering and research (a lot). The scope of doing MS abroad is so high (especially in Europe). The facility is great and the research over there is too good. The basic criteria to do MS abroad is writing Graduate Record Examination (GRE) and get a good score. Next is English proficiency tests such as IELTS, TOEFL etc. Get atleast 6.5 out of 9 to get admission in colleges abroad. To do MS is US or Uk is too high and it is not easy to extend your visa after your course. But you can also do post graduation cheaply but with more value.

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Dual-ISO Mode in Canon DSLRs

Bitbucket's Magic Lantern project comes up with an interesting firmware hack on Canon DSLRs. Apparently, Canon hardware allows changing the readout or ADC gain at a fast pace, every two rows. So, every two rows one can flip the effective ISO, for example, between 100 and 1600 to get an extended dynamic range at the expense of reduced vertical resolution:

Pixart Adopts BDA FastSPICE

Business Wire: Berkeley Design Automation announces that PixArt has selected the company’s Analog FastSPICE (AFS) Platform for block-level characterization, full-circuit verification, and device noise analysis of their image sensor designs.

"Our unique image sensing technologies have stringent circuit verification requirements to achieve low cost, low voltage, small dimensions, and outstanding quality," said Ian Wang, Department Manager, Design Supporting Department, PixArt Imaging. "We selected the AFS Platform because it provides the accuracy and performance we require. For our key circuits, AFS delivers nanometer SPICE accuracy 5x faster than traditional SPICE and AFS Transient Noise has excellent correlation to silicon measurements."

First Imaging Forum Opens Registration

Albert Theuwissen announces that the first imaging forum will focus on "ADCs for Image Sensors" to be held on Dec. 16-17, 2013, in Delft, the Netherlands. The agenda is fixed, and registration for the forum is open.

The basic intention of a forum is to have a scientific and technical in-depth discussion on one particular topic. The audience will be strictly limited to enhance and stimulate the interaction with the speaker(s) as well as to allow close contacts between the participants. The forum is intended for imaging engineers working on systems or projects in which analog-to-digital converters determine (part of) the sensor/camera performance.

The lecturer is Prof. Marcel Pelgrom, known to every analog designer by his classical works on MOSFET mismatch in Philips. For the last 20 years everybody uses his model in Monte-Carlo simulations integrated into all major circuit simulators.

Because of the great response on the first announcement, a second session of the forum is scheduled to take place on Dec. 19-20, 2013. Same location, same agenda, same speaker.

Leap Motion Starts Shipping its Gesture Controlling System

Leap Motion announces that it has begun shipping hundreds of thousands Leap Motion Controllers to people who pre-ordered them for $79.99. The company also launched its software, allowing people to control their computers with natural hand and finger movements. It also opened Airspace, the on-line store for people to buy, download and launch apps built for Leap Motion’s 3D interaction. At launch, the Airspace Store contains more than 75 applications built by developers in more than 20 countries.

"Today marks a tremendous milestone for the company, but we’re just getting started," said Leap Motion co-founder and CEO Michael Buckwald. "Leap Motion enhances the computing experience to allow people to do things in new and better ways, and we’re committed to breaking down the barriers between people and technology to make the future more easily accessible."

Meanwhile, GigaOm discusses its first experience with Leap Motion's platform and it seems to fail impressing the reviewer.

Caeleste Celebrates 7 Years

Caeleste celebrates 7 years. The company is 15 people-strong now (although only 12 are on the group picture below). Caeleste is pleased to announce a revenue of 1.7M euros this year and it's expected to grow next year.

The company also published its IISW 2013 papers here and two new patents on X-Ray sensors here.

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Rambus Expands Imaging Product Offerings

It looks like Rambus' Binary Pixel was just the beginning of the company's push into imaging business. The firm keeps investing and expanding its imaging portfolio. Business Wire: In June 2013 Rambus presented two papers at the 2013 Computational Sensing and Imaging Meeting:

"Lensless Ultra-Miniature Imagers Using Odd-Symmetry Spiral Phase Gratings"
Patrick R. Gill and David G. Stork

Drs. Gill and Stork introduce a new type of diffractive element based on odd-symmetry phase gratings. Spiral arrangements of these gratings over photo sensors constitute a new class of unprecedentedly small computational camera.

"Transmissive Structured Illumination Reveals Target Depth and Cast Shadow Details Obscured by Scattering Media"
Avinash Kumar, Patrick R. Gill, Thomas Vogelsang, and David G. Stork

During this presentation, Rambus engineers will describe novel methods of computing sharp shadows and depth estimates of objects immersed in highly scattering media using multi-scale structured transmissive illumination, such as modified Hadamard tiles.

On July 16, 2013, the company presented a paper "Digital Camera Sensor Technology" at OSA Optical Sensors Congress:

Rambus scientists Dr. Patrick Gill and Dr. David Stork will highlight their research on digital sensors and novel odd-symmetry phase gratings, outlining how severely blurred sensed image can be inverted computationally to refocus and estimate target distances.

Seeking Alpha published Rambus Q2 Earnings Call transcript with Ron Black, CEO, saying"

"At the International Image Sensor Workshop we presented silicon test results of our binary pixel technology we introduced earlier this year where we've expanded the dynamic range by a remarkable factor of 14 when compared to conventional image sensor. And at the Computational Sensing and Imaging Meeting we discussed some early work on our Lensless Ultra-Miniature Images which we believe will lead to significant improvements in imaging and sensing across various fields such as medicine, defense, industrial inspection and testing. We have a lot of exciting developments underway in this group, particularly related to the [in and out of] things and we look forward to sharing more in the coming months."

Rumor: Upcoming Motorola X Smartphone to Feature Aptina Clarity+ Technology

Mobilebloom, Phonearena and few other sites spread rumors that the upcoming Motorola X flagship smartphone will be using Aptina Clarity+ sensor. The new phone is expected to be announced on August 1st. The rumors apparently originate from 2-weeks old post by Android and Me site saying that Moto X will have a camera with "Clear Pixels".

SCOPE OF COMPUTER SCIENCE ENGINEERING

For those of you who are still confused about your aptitude and would prefer to go with a course that has better options and opportunities in comparison with others, here is a guide on computer science, which I believe is the field for both tomorrow and today. Now this aspect is quite important as certain courses that offer high potential for the future may not have developed up to par at the present and vice versa. I think Computer Science is the best course for 2014.

How does one sense that he/she has an aptitude for Computer Science? The first and foremost point to be kept in mind is that Computer Science is a breed of science that constitutes of numerous fields and areas within which one can prosper and master. In a student point of view, ranging from gaming graphical designing, applications programming, web development, embedded systems, etc are a handful among a pool. So your aptitude might be in compliance with one field or another, no need to worry. Generally If you are good at logic, you love to solve mind-boggling problems, Computer Science is waiting for you. But then, most kids nowadays are acquainted with a computer from school days itself. Hence it is an easy process to locate the aptitude in Computer Science. Kids who play with software often end up in a Computer Science classroom (or in a start-up in Silicon Valley!).

Once you have opted for Computer Science, the foremost point to be remembered is staying updated is the most difficult yet important virtue here. One should make sure that he/she is getting to know the recent developments and innovations happening around in their area. It is equally important that one starts to experiment with his/her personal computer. What is being taught in a classroom is probably less important when compared to the knowledge you are supposed to gather from parallel sources like internet, during the course time. It is a pressing issue that it is high time that our universities start to rebuild their curriculum, as in most institutions the courses are way more than outdated. In this scenario it becomes far more important that one starts to learn current gadgets from the web. The fact I understood is that one's profile should be good. Every student undergoes internships during their course and for you to get an upper hand in placements it is always better to do internships abroad during your engineering course.

Computer Science offers a variety of options and opportunities on course completion. The obvious option of getting employed in software sector is quite alive, as more and more opportunities are getting created on a regular basis. Apart from that, computer science enthusiasts and graduates are also placed in a variety of sectors including Information Technology, System Administration and Banking. The option that I would like to stress here is about getting into having a start-up as in numerous cases proved to be the path breaking decision. Students are more into doing their own work, realizing their own visions and build their own enterprise rather than getting employed in a pre-established firm. It seems as our youngsters are getting to like the risk and passion involved in the process. Besides, the technical/programming skills that one possesses also accommodate the opportunities to work while students, providing a good deal of pocket money and invaluable experience alongside. Moreover, it is quite evident that the end of computer era is not likely to happen in the near/distant future as computers are only being replaced by better computers. A computer professional hence only need to get involved with the evolving technology and he has a place somewhere in the corporate framework.

Almost half the engineers irrespective of the course they have done happen to join IT companies. So why not opt Computer Science engineering, get a good base and then join IT companies so that you have an upper hand compared with other engineers coming from different branches. The initial pay and the increase in pay over the years for computer science engineers are too high and attractive compared with other engineers working in core companies such as manufacturing, automobile, etc. To sum up, Computer Science is a demanding yet fruitful course that returns multiple times the result for the effort to put in. Just get to love these immensely powerful yet friendly machines and they are sure to safeguard your future once and ever.

You can also go for higher studies such as M.Tech or MS to make your career firm. But If you are going for M.Tech i highly recommend to do it in IIT's and NIT's. You can also do MS in India and abroad as well. M.Tech mainly consists of engineering while MS consists of engineering and research (a lot). The scope of doing MS abroad is so high (especially in Europe). The facility is great and the research over there is too good. The basic criteria to do MS abroad is writing Graduate Record Examination (GRE) and get a good score. Next is English proficiency tests such as IELTS, TOEFL etc. Get atleast 6.5 out of 9 to get admission in colleges abroad. To do MS is US or Uk is too high and it is not easy to extend your visa after your course. But you can also do post graduation cheaply but with more value.

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e2v wins Sir Arthur Clarke Award for Outstanding Achievement in Space

e2v wins the Sir Arthur Clarke award for outstanding achievements in space activities. The Sir Arthur Clarke Award is an award given in recognition of notable contributions to space exploration, particularly British achievements. They have been presented annually since 2005.

e2v was selected as the winner due to its outstanding contribution to space imaging projects in the past year including arriving on Mars on board NASA's Curiosity rover, going into orbit in Europe's highest-resolution satellite, Pleiades, and equipping the telescope of the extraordinary astronomy mission Gaia, which is due to launch in the next few months.

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Digi-Key: CIS Prices to Fall 2% a Year

Digi-Key quotes IC Insights saying that prices for CMOS image sensors are expected to drop about 2% per year for the next four years, although demand for sensors will rise and the market will increase 12% annually through 2017.

In 2012 there was an 8% increase in the average price of image sensors, according to Rob Lineback, IC Insights analyst. "It was unusual because units only increased 13% and revenue was up 22%. This year in 2013 we see a 1% price drop," he says. In 2012, camera phones accounted for 62% the market, but expected to drop to 53% in 2017. Meanwhile, image sensors for automotive will grow from less than 1% 2012 to 8% in 2017, while medical and scientific sensors will rise from 3% in 2012 to 5% in 2017.

The CMOS sensor revenue will increase from $7.1B in 2012 to $12.5B in 2017:

Rumor: Apple is Buying Primesense for $280M

The Verge, Mashable and other news sites interpret a Hebrew-language Calcalist article saying that Apple is in talks to acquire Primesense for $280M. The new rumor appears to be continuation of the previous one from about two weeks ago. Both Apple and Primesense refuse to comment of this rumor.

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Aptina Explains Clarity+ Technology, Reveals 1.1um Pixel Product

Business Wire: Aptina announces a new Clarity+ 13MP sensor for smartphones, the AR1331CP, featuring 1.1um pixel with Clarity+ technology, which is said to boost the pixel sensitivity by a factor of two without introducing the image artifacts that have limited similar approaches from other sensor makers.

"Clarity+ technology uses a Bayer-like pattern with high-fidelity clear pixels that collect two times the light compared to standard green, resulting in a significant improvement in captured signal," said Bob Gove, President and CTO of Aptina. "Clarity+ technology provides the leap necessary to take artifacts and noise out of the equation enabling a world-class image sensor in the mobile-ready, tiny form factor that OEMs need."

Aptina has published a whitepaper on Clarity+ technology. Clarity+ starts with the standard 2x2 Bayer RGB color filter pattern commonly used in image sensors throughout the industry, and then replaces all of the green color filters with carefully optimized clear filters. This pattern preserves the high-frequency spatial information of the Bayer pattern, eliminating the aliasing artifacts that are inevitably introduced when both green and clear filters are used in larger kernel (4x4) patterns. The green color is determined through the image processing algorithms that use subtractive and interpolation techniques. Specialized noise reduction is then applied, resulting in a 3dB improvement in low-light SNR, relative to that possible with the RGB Bayer pattern.

"Aptina’s Clarity+ CFA pattern (RC/CB) is unique in that we have the same number of B and R pixels as Bayer, but determine G through a subtraction of R and B from C. Because we have the same number of C pixels as other 50% C schemes, we can extract the same SNR improvement. However, because we have the same configuration as Bayer, we uniquely maintain the high fidelity of luma information and low level of chromatic artifacts to which the industry is accustomed. Because G is determined through a subtraction, there is a tendency to amplify noise in the conversion to the standard RGB (sRGB) representation. This is addressed by image processing algorithms that are part of the Clarity+ technology."

"As with other patterns involving C pixels, there is a very slight trade-off (a few tenths of a dB) in visual noise when compared to Bayer in bright light situations, but this is not noticeable in those situations, because SNR is high and does not typically limit quality. There is the benefit in bright light situations, that Clarity+’s increased sensitivity will result in exposure times that are half that for Bayer and this is useful for capturing action shots with less blur and motion artifacts. The 50% RGBC patterns (including Clarity+) are also more sensitive to flare and other stray light issues, but this can be managed through appropriate pixel, lens, and packaging design."

The whitepaper also has many actual pictures comparing Bayer CFA sensor with the Clarity+ one.

The AR1331CP is available now for sampling in die form with raw output for use in systems that are enabled for Clarity+ processing. The AR1331CP is also available for sampling with Clarity+ coprocessors that can either fully process the unique Clarity+ images into industry standard camera formats or “pre-process” the Clarity+ images into Bayer format for compatibility with standard image and application processors.

Intel Acquires Gesture Recognition Middleware Startup Omek Interactive fro $30-50M

SJ Mercury News, CNET, Globes: Intel Israel spokesman confirmed that Intel has acquired gesture recognition middleware startup Omek Interactive, declining to specify the price Intel paid; Israeli newspaper Haaretz reported that the price was close to $50M, while other sources report the price of $30-40M. So far the startup has raised $14M, with Intel Capital being one of the leading investors.

"The acquisition of Omek Interactive will help increase Intel's capabilities in the delivery of more immersive perceptual computing experiences," Intel spokesperson told CNET.

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The stages of the recruitment process include: job analysis and developing a person specification; the sourcing of candidates by networking, advertising, or other search methods; matching candidates to job requirements and screening individuals using testing (skills or personality assessment); assessment of candidates' motivations and their fit with organisational requirements by interviewing and other assessment techniques. The recruitment process also includes the making and finalising of job offers and the induction and onboarding of new employees

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