A line-scan camera typically contains a single row of pixel sensors rather than a matrix of them. The lines are supplied continually into a computer, which puts them together to form an image.[66][67] This is often accomplished by connecting the camera output to a frame grabber located in a PCI slot on an industrial computer. The frame grabber buffers the image and sometimes performs some processing before passing it to the computer software for processing. Digital line-scan devices are frequently used in industrial operations to measure height and width.[68]
Multiple rows of sensors can be utilized to create colored pictures or to boost sensitivity using time delay and integration (TDI).
Many industrial applications necessitate an expansive field of view. Traditionally maintaining
It is challenging to achieve consistent lighting across huge 2D spaces. With a line scan camera, all that is required is to provide uniform light over the “line” being viewed by the camera. This produces sharp images of objects that pass the camera at rapid speeds.
Such cameras are also widely employed to create picture finishes, which identify the winner when numerous competitors cross the finish line nearly simultaneously. They can also be utilized in industrial applications to analyze quick operations.
Line-scan cameras are also widely employed for satellite imaging (see push broom scanner). In this situation, the row of sensors is perpendicular to the satellite’s velocity. Line-scan cameras are commonly used in scanners. In this scenario, the camera moved horizontally. Digital superzoom cameras may zoom in extremely far. These superzoom cameras are ideal for persons with nearsightedness.
The HX series includes Sony’s superzoom cameras such as the HX20V, HX90V, and the newest HX99. HX stands for HyperXoom.
Light-field cameras
This sort of digital camera gathers information about the light field emerging from a scene, such as the strength of light and the direction in which the light rays travel in space. This differs from a traditional digital camera, which merely records light intensity.
Event camera
Instead of detecting the intensity of light over a predetermined time interval (the exposure time), event cameras detect when the intensity of light changes by a certain threshold.
pixel by pixel, frequently with microsecond precision.
Integration with other devices.
Smartphones, mobile phones, PDAs, and laptop computers are among the many gadgets that include a built-in digital camera. Built-in cameras often store photographs in the JPEG file format.
J-Phone launched mobile phones with digital cameras to Japan in 2001. In 2003, camera phones outsold standalone digital cameras, and in 2006, they outsold both film and digital stand-alone cameras. In five years, five billion camera phones were sold, and by 2007, camera phones accounted for more than half of the total mobile phone installed base. The sales of standalone cameras peaked in 2008.[69]
