Wednesday, June 11, 2014

CCD( couple-charged device ) Camera Video Quality information

ccd  use in cctv camera, cctv camera use for security of office, home, fectory, etc.......


















Regardless of the image capture method of the cd camera, the lens remains the most critical component
regarding HD video capture. Lenses are meant to refine optical aberrations that occur when recording video, and there is a wide variety of camera lenses for various recording scenarios. Lenses come in several standard uses and mounting styles.



CCD cameras are a type of image capture device that utilize an image sensor to register visible light as an electronic signal. These types of cameras do not use photochemical film to capture stills or video. Instead, the electronic signal is recorded to either an internal memory or a remotely connected device. Of the three types of digital cameras (the others being CMOS and CID), CCD cameras are the most developed and commonly used.

Resolution

Resolution is the quality of the image when viewed. For digital cameras, resolution depends upon the number of pixels (horizontally and vertically). At a standard size, more pixels sharpen details on a photograph, but when enlarged the pixels become apparent in an effect called pixelization. This is similar to grain on film. Digital camera resolution is commonly measured in megapixels (MPx), with each mega representing one million square pixels. High-definition is regarded as a resolution of 1,280 x 720 pixels or more.

Frame Rate

Measured in frames per second, this is the number of image captures. The human eye is capable of differentiating between 10 to 12 separate images per second; anything more and the rapidly changing images creates the illusion of movement. Frame rate of individual cameras is very much reliant upon the playback method and territory, or the specific application of the camera, both of which are covered in depth below.

Shutter Speed

This is responsible for the duration that light reaches the image sensor or film. It directly controls the exposure rate along with the aperture. Slower shutter speeds result in blurred motion capture. Since CCD cameras are electronically activated, most do away with the manual shutter. Instead, digital cameras can offer an electronic shutter, which is faster since there are no moving parts.

Sensitivity

How well a camera captures images in low-light situations is measured in LUX. It is a number that represents how sensitive a camera is, and a lower number LUX sees better in less light. Color and monochrome cameras measure LUX differently.

Tuesday, June 10, 2014

Expanding of earthquake detector robot and working add new features in robot,

Expanding of earthquake detector robot and working add new features in robot,
This robot building at surat in india.  rakesh kansara working on robot for add new features from 2 year. This robot made for earthquake detector but robot can work on security system.


Monday, June 9, 2014

Detailed specifications for the Nokia X Dual SIM



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