In our high tech world we are used to having things done quickly; however, we don?t want quality to take a back seat to timeliness. Digital technology gives us incredible speed mixed with amazing performance. No where is this more evident than with digital cameras. High speed digital cameras are specifically designed for advanced professional and industrial usage. Let me explain this concept in more detail.
High speed digital cameras were designed to capture very fast images. These cameras are mainly used in industrial and scientific applications where a process of their function is moving or changing rapidly. These high speed digital cameras can take photos in both color and monochrome mode.
Monochrome basically refers to the projection of image in back or white, or in complete grayscale. On the other hand, the varying combination of discrete colors generate the range of colors. One such prominent method is RGB or red, green and blue. The RGB technique senses the red, green and blue components and then conjoins these components to form an extensive spectrum of colors.
High speed digital cameras are defined by a variety of unique features. These features include horizontal resolution, maximum frame rate and shutter speed. When I say horizontal resolution I am talking about the highest amount of individual photo elements that can be distinguished in one scanning line. This is an essential feature for characterizing correct horizontal video resolution for image aspect ratio. Horizontal resolution is also used to specify the resolution in the biggest circle which can fit in a rectangular image. For example, an 800x600 image would be specified as 600 horizontal lines.
Maximum frame rate refers to the greatest number of photos that can be taken in the specific time period. In photography time periods are usually counted in seconds. Finally, shutter speed refers to how much light the camera lets in during the time the shutter button is pressed. This is an individual choice and can be set across a wide range, depending upon the subject and light conditions.
High speed digital cameras are available in two basic technologies. These are CCD and CMOS. CCD refers to charge coupled devices. The CCD is composed of a light sensitive silicon chip. As the light falls on the CCD, it starts converting light into electrons. A CCD carries these electrons across the chip where they are read at one corner of the array. Now with the help of an analog-to-digital converter, the amount of electrons at each photo site is measured and then they are converted into the binary form.
The CMOS refers to the complimentary metal oxide semiconductor. This technology is also used to convert light into electrons. A CMOS employs numerous transistors at every pixel to move and amplify the charge via traditional wires. The signals of CMOS don't require conversion into digital form as they are already digital. The CMOS image sensors consume low power as they operate at lower voltages than the CCDs.
The prominent choices for digital output interface for high speed digital cameras include Ethernet, RS232, DeviceNet, CANbus, USB, SCSI, modem and wireless. The choice for a number of pixels can vary from 8 bits to 16 bits. Even the color output can vary from composite, RGB or S-Video.
Some of the prominent physical features for the high speed digital cameras include radiation hardened, underwater rated, outdoor rated, goose neck, board mount, pan or tilt and remote head.
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