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Showing posts with label CMOS Sensors. Show all posts
Showing posts with label CMOS Sensors. Show all posts

Wednesday, August 18, 2010

What to do with High Speed Cameras? Time Slash or Time Warp !



I already heard of High Speed Cameras. Anyone could easily and wrongly judge the meaning of this camera by the name. Let me share few things i know about this High Speed cameras. What we do with cameras? Of-Course Photography. Explaining this camera, high speed photography is termed as Science of taking picture in very fast phenomena. To be clear, our normal camera has 50-60fps (Frames Per Second) video capturing capability, which equally compatible for the eyes of the human beings called persistence of vision. But this camera is capable of capturing 200,000,000fps, I mean 200,000,000 pictures for 1 Second video clip. I couldn't believe either, But this is the top "fps" ever achieved in this camera up-to date.


The above picture is "Soap Bubble bursting", a snapshot of Discovery Channel's mind blowing program "Time Warp". One such camera powers "Time Warp". They use High Speed Camera named "FASTCAM SA1.1" manufactured by a Japan based "PHOTRON Inc." , a leading manufacturer of High Definition High Speed Cameras.



This High Speed Photography has its root from earliest 1878 by a British Photographer "Eadweard J. Muybridge". He was the first one to introduce High Speed Photography, for his research, to whether feet of horse were on the ground during a horse training practices. The picture he used to examine his research can be found on the Wiki's page on High Speed Photography.

There were lot more history until these years. The High Speed Photography was also described as Time-Lapse Photography, picture taken every few mins equally and stitch it to make a complete video. We came across such videos in television, showing sun rise to sun set with-in small clip of video. Of-course, a Camera and a Video stitching software is more than enough to make this video, But High Speed Camera uses specific technologies to achieve High Speed Photography.

High Speed Cameras has come across, five(5) Technologies, which were left behind with the one's incompatibility, filled by the other. Vidicon is the oldest and first technology used. This technology suffered "Ghosting effect" and thus with the introduction of CCD's vidicon lose its capability. CCD was the most amazing discovery of digital photographic technology. Then comes the IS-CCD, a corrective technology to former CCD. Then after the invention CMOS Technology, the Digital Photographic technology has pulled out all other technologies. Then recently invented that High Speed Photography is also possible using Infrared and still research are being done.

Taking on the Digital Photography, a normal video capturing is possible through electronic open and close of a shutter which is placed before the camera censor and which also includes the sensor's capture ability within the time, the shutter actually open and close for a period of 50 in a second. This issues makes the High Speed Cameras very difficult to design. Take a quick short look over my video blog to see a Soap Bubble bursting on Discovery Channel's Time Warp program. Cool program rite, the camera that makes cool video takes very tedious time to design and test itself before it came into existence.

Though many Television Network uses this camera for commercial like film making and advertisements. These cameras were specifically designed for Scientific Research, Analysis, add whatever scientific terms you want. Considering Automobile Industry, This camera is an effective tool for vehicle's damage analysis, by hitting the vehicle to a hard material before a camera and then analysis the damage by playing back the video in slow rate. Research Institutes use this camera for describing a scientific action and reaction of a process.

Saturday, November 7, 2009

Paro, a Mind Optimizer !


Paro is a Baby Seal and a product designed by Takanori Shibata of National Institute of Advanced Industrial Science and Technology (AIST) of Japan. Well Baby Seal cannot be a Product, But its a Mind Healing Robot stuff. Every Baby is a Mind Optimizer for their parents and Grandparents. And Hope you all get the meaning of Title. So this is the theme, A cute little Baby Seal that heals psychological diseases.

The Most usual thing that we used to find with elder people was Dementia and Autism in Children. Dementia is a Cognitive Disorder that makes distress in understanding things and Autism is the Disorder of Neural Development. The recent research reveals that this Therapeutic Robot diminish Dementia and Autism. Paro is replica of Harp Seals commonly found in Northern part of Canada. This picture is below.



It look cute rite..! Paro can attract almost anyone of its surroundings. Paro is a Robot that shows emotions such as happiness, surprise and snger by swinging its tail and blinking its eyes in response with the Touch Sensing attributed through Tactile sensors. Paro also makes the sounds similar to cute little baby seals. One step beyond the above senses, It responds to sound and learn the name as conveyed by its Owner. Paro behaves very similar to Seals and even sleeps at night and active in the morning.

Technically, This robot is automated through Two - 32Bit RISC Microprocessor, can also be called as ARM Processor. After profound practical experiments conducted both in Japan and United States, It was finally revealed that Paro implants positive energy in elder people psychologically. Paro was also classified to various versions depending on the Handler of the Robot either elder group of people or group of children.

This Baby Seal Robot is being used in Hospitals, Counseling centers, Official Buildings to create center of attraction and Optimize human brains if under stress. Hope this is a Cute Pet for Elders and Children. In the world, no-time for love for Elders and Children being left alone, this is Great Mind Refresher. Write me comments on Paro.

Monday, May 18, 2009

Special things about Sony Cybershot

Cyber-shot is the name of the certain series for Sony Digital Camears popularly knows as DSC(Digital Still Cameras). Cyber-shot represents the overall performance of the camera like its Integrated Display, use of Multi-rate processors, etc. Cyber-shot cameras basically uses specially designed CMOS Sensor namely "EXMOR".

In Past days and even now, the time to open the camera shutter makes the capturing possible. With High Speed shutter, Cyber-shot camera makes sufficient no. of shots in few seconds and with the help of BIONZ Image processor, combine varoius shots into one based on errors in picture capturing. The stiched image is the final outcome of Cyber-shot Photograph.
Sony Cyber-shot has its history of over 13 Series of Digital Camera products in a length of few years. With more sufficient technologies, Sony releases the first Mobile-Phone with Cyber-shot capability. The above circuits shows the Cyber-shot built cameras that is used for Digital Still Cameras and Mobile Phones.

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