Ccd Image
2010
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Ccd Image
What is difference between CCD and 3CCD
CCD, Charge Coupled Device is the English abbreviation of the charge-coupled device, which is a special semiconductor devices, with lots of the same sensor, each sensor is called a pixel. CCD in the camera is an extremely important component, it will play the role of light into electrical signals, similar to the human eye, so its performance will directly affect the performance of the camera.
CCD indicators to measure a lot of good and bad, with the number of pixels, sony vgp-bps9 battery CCD size, sensitivity, signal to noise ratio, etc., in which the number of pixels and the CCD size is an important indicator. The number of pixels on the CCD sensor is the number. Camera footage can understand the point of the grounds of many small, each point is one pixel. Obviously, the more pixels, the picture will become clear, if there is not enough pixel CCD, then shoot out will greatly affect the clarity of the screen, so in theory the number of CCD pixels should be better. However, the increase in the number of CCD pixels, and the yield will decrease manufacturing costs, but also in the current television standard, a certain number of pixels increases, then increase the clarity improved shooting results become obvious, therefore, generally a millions of pixels around the use of general enough.
Single CCD camera is a MOTOROLA NTN7143 battery CCD camera and used, only the brightness signal and color of its photoelectric conversion signal, which is CCD color signal on the specific combination of color behind the mask of the device and the circuit completed. Since a CCD while the luminance signal and chrominance signals to complete the conversion, it is inevitable co-existence, making the images taken out of reach in the color reproduction on a professional level is a requirement. To solve this problem, giving rise to a 3CCD camera.
3CCD, the name suggests, is a video camera using three CCD. We know that, if the light through a special prism, will be divided into red, green, and blue, which is our TV uses three colors of the three primary colors, through the three primary colors, including the luminance signal can be generated including all television signals. If you were to accept each with a color CCD and converted to electrical signals, then processed through the circuit produce an image signal, so that to form a 3CCD system.
And single-CCD, compared with the 3CCD 3 CCD were converted red, green, blue signals, taken out of the image from color to restore the natural than the HP 361909-001 battery single CCD, brightness and sharpness better than the single CCD. However, due to the use of the three CCD, 3CCD camera much more expensive than the price of a single CCD, the camera will be used only with professional 3CCD.
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Image resolution on a CCD.?
On some camcera's or Camcorders, the image is smeared when the digital zoom is maxed out, why does that happen?
Is it the Pixel count or the horazontal lines resolution that causes that?
Digital zoom is a method of decreasing (narrowing) the apparent angle of view of a digital photographic or video image. Digital zoom is accomplished by cropping an image down to a centered area with the same aspect ratio as the original, and usually also interpolating the result back up to the pixel dimensions of the original. It is accomplished electronically, without any adjustment of the camera's optics, and no optical resolution is gained in the process.
Because interpolation disturbs the original pixel layout of the image, as captured by the camera's image sensor, it is usually considered detrimental to image quality. The results of digital zoom are, however, sometimes superior to the results of manual cropping and resizing (interpolation) in post-production. This is because the camera may apply its interpolation before performing lossy image compression, thereby preserving small details that would otherwise be lost. For cameras that save images in a raw format, however, resizing in post-production will yield results equal or superior to digital zoom.[citation needed]
Some digital cameras rely entirely on digital zoom, lacking a real zoom lens, as on most camera phones. Other cameras do have a real zoom lens, but apply digital zoom automatically once its longest focal length has been reached. Professional cameras generally do not feature digital zoom.
PalmVID Color Video Camera with Sony CCD Image Sensor Sample Video
