ccd camera

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작성자방어탕아 조회 7회 작성일 2020-08-05 00:37:31 댓글 0

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CCD: The heart of a digital camera (how a charge-coupled device works)

Bill takes apart a digital camera and explains how its captures images using a CCD (charge coupled device). He also shares how a single CCD is used with a color filter array to create colored images. This video is based on a chapter from the EngineerGuy team's latest book Eight Amazing Engineering Stories (Learn more at http://www.engineerguy.com/elements)
Tobías Chaparro : My mother was a monkey, my father a pigeon.
It sounds impossible but you are seeing the results yourself.
Random Guy : Color gambit on camera as it flies threw the world so it registers the camera
FOAD RIGHTNOW : "Any sufficiently advanced technology is indistinguishable from magic!". I'd say that statement certainly applies here! All through the manipulation of electrons! Mindblowing!
Mc007Queen : I want more
K Sou : really amazing
abd allah : We hope you will add Arabic translation
All you want to know : Thank you sir
Aurel Jula : I like
Abhishek P G : So if each pixel is bound by channel stop and aluminium grid and if we apply external potential to aluminium electrode to move the charges.Then wouldn't it cause the charge in adjacent pixels(on either side of aluminium grid) to get mixed up.And if that happens wouldn't it affect the data coming from each pixel?
Manish Kumar : Hi Hammack, Your videos are exceptionally well. You explained the technical section is such a way it is crystal clear to everyone. Your video on bioscope camera particularly the exact matching of sound with corresponding film. Regards. Love to see more videos

Image Sensors Explained: How CCD and CMOS Sensors works? CCD vs CMOS

In this video, modern-day image sensors like, CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor) have been briefly explained. And the comparison between CCD and CMOS sensor is carried out in various aspects.

Both CCD and CMOS sensors consist of an array of tiny photosites (pixels) which converts incoming light into the charge.

The following steps are common in both CCD and CMOS sensors, but the sequence in which it is carried out might differ in two sensors.

1. Conversion of incoming light into the charge
2. Charge Accumulation
3. Charge Transfer
4. Charge to Voltage Conversion
5. Voltage amplification

CCD Sensor:

In case of CCD Sensor, the incoming light is converted into charge, and then charge to voltage conversion is carried out, outside the sensor area.
Most CCD sensor has a single charge to voltage conversion circuit and single amplifier. So, charge from each pixel is transferred to the next row (or next column) and eventually to the shift register.
In shift register, the charge is transferred one by one and then it is converted into the voltage.

CMOS sensor:

In case of CMOS sensor, the charge to voltage conversion and voltage amplification is carried out in the pixel itself. So, each pixel has its own charge to voltage converter circuit and voltage amplifier circuit. Such CMOS sensor pixels (which contains amplifier) are known as the active pixel sensor.
In case of CMOS sensor, the reading of the pixel voltage is carried out in line by line fashion.

Comparision of CCD and CMOS sensors:

1. System integration:
In case of CMOS sensor as the peripheral circuit is also integrated into the sensor chip itself. While in case of CCD sensor, for peripheral components, the different chip is required.

2. Power Consumption:
CMOS requires less power than CCD Sensors.

3. Processing Speed:
CMOS sensor is much faster than CCD sensors.

4. Noise and sensitivity
CCD sensor has less noise than CMOS sensor and also it has better sensitivity. But nowadays using different techniques like microlens on each pixel of CMOS sensor, the sensitivity can be increased.

Time stamps for the different topics are given below:

0:34 Overview of CCD and CMOS Sensors

1:36 How CCD Works?

2:53 How CMOS sensor Works?

4:01 Comparision between CCD and CMOS Sensors

4:11 Comparision in terms of the system integration

4:51 Comparision in terms of Power Consumption

5:37 Comparision in terms of the Processing Speed

6:33 Comparison in terms of the Noise and Sensitivity

7:25 Comparision in terms of the image distortion

This video will be helpful to all in understanding the CCD and CMOS image sensors.

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エロイ : wow this video is basically an hour of my class compact into 9 minutes. I'm leaving a like here
Anonymous3777 R : Cool vlogs
elise chapellet : You rock man! You have the gift of explaining complicated things in a way that make them look simple!
Best video on the topic that have seen! Many thanks!
Michael B. Prashanth : Thankyou
Mixed Creations : I can’t understand wtf this man is saying
Pravin Vedurla : CCD or Cafe Coffee Day.
Niby Mathew : Just reading
Subscribe Me and I'll Subscribe You Soon ! : i dunno why i just hate indian and alike, especially the accent of speak.
rawda rumaieh : a life saving video.. thank you sir, much appreciated
Moses Mosaic : fyi 1.25 playback is a mistake

CCD vs CMOS Sensors

This video is part of the Udacity course "Computational Photography". Watch the full course at https://www.udacity.com/course/ud955
Dave P. : How can your hands move so fast with all the drag your hairy fingers must create?
Love Kush : All DSLR Cameras Use CMOS
THTSound : So CCD is superior, my old camera used CCD, i have upgraded to DSLR (wich is "superior") so Canon and Nikon DSLR , who every pro photographers use and Sony, have CMOS sensor..so wait!!! I'm amzed .. the best Cameras in the world Nikon D850 and Canon 5D mk3 uses CMOS ... wtf :)):)):)): isn't this contradictory?? omg :))
فهد الغامدي : thank you .
IARRCSim : Is there a way to collect the individual photon detection events paired up with timestamps using CCD or CMOS sensors? It seems like regular video formats fail to capture all the raw data detectable with those chips because it only represents totals grouped by frame. For example, a conventional video file would indicate the total counted red photons for a 1/60 of a second time interval at pixel 0, 0. A continuous stream of precisely timestamped photons, their coordinates, and colour would be much more flexible. It would be easier to choose a frame rate later, for example.
Wingfu Fung : can't believe I compare the photo quality of my xz premium and my 10 years ago canon s95 ccd camera. the quality of s95 is way better and the photo has much more detail.
Michael Noble : Thanks!
D Hope : Failed to add that CMOS records each line of the image in succession, which is what causes the rolling shutter effect. Also, CCD / global shutter takes a complete snapshot of the image across the entire sensor.
Manuraj Sharma : Hello
Can we find out the image movent distance though ccd
henryssurfshowcase : Hi, do 3 smaller sensors like 1/2.8 look better than 1 larger 1 inch?

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#ccd camera

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