One of the leading achievements of digital technology is the use of 100-hertz scanning (100 Hz Digital Scan). Thanks to technology 100 Hz image refresh rate has been increased from 50 Hz to 100 Hz. As a result, the image is refreshed 100 times per second, so twice as often as in ordinary, existing video devices, for example. on TVs. In this way, a calm image is obtained, flicker-free, sharp, without interference and distortion.
Another achievement of digital technology is the introduction of an artificial intelligence chip (Al). This system continuously adjusts the image parameters, allowing you to maintain its perfect quality. As a consequence, realistic images with exceptional depth are obtained. The effect of the Al system consists of:
• digital signal processing, which provides crystal clear images with crisp, realistic colors;
• digital comb filter, which eliminates noise and color blur from the video signal, providing a vivid image
and high resolution;
• digital system for improving color transitions (CTI - Colour Transient Improver), that reproduces precisely separated colors, eliminating the effect of blurring at the border of color areas;
• digital image detail amplifier (P.DE - Picture Detail Enhancer), for perfectly sharp images with precisely reproduced details;
• digital noise reduction system (Y.NR - Luminance Signal Noise Reducer), providing a clear, detailed image, by precise noise cancellation;
• digital speed modulation system (V.M — Velocity Modulation), for sharper image contours;
• digital image noise reduction system (P.NR - Picture Noise Reducer), reducing image noise from weak signal sources.
Various video equipment companies introduce their names and versions of systems, in which Al artificial intelligence systems operate. Panasonic refers to it as part of the GAOO WIDE DDD (Dynamie Digital Definition), i.e. dynamic digital resolution, Sony as part of the overall IQ system, etc..
Digital technology also opens up many other possibilities related to image editing. These include a multi-window system (Multi-Window), which allows you to view images from multiple sources on one wide screen. This system is implemented in the following modes:
• two-window mode – two images of the same size are displayed, from various sources, on separate halves of the screen;
• Search - This feature allows you to view many smaller images, allowing you to see, what happens on other channels;
• strobe – images appear on the right side of the screen (for example. simultaneously 8 small images), creating a sequence of observed events recorded at very short intervals;
• picture next to image – this mode allows you to watch another program in a smaller window, on the right side of the screen, not overlapping the main full-size image.
Digital technology also makes it possible to automatically select the aspect ratio. Widescreen mode is automatically selected in two cases: broadcast of a widescreen film (the projection takes place in accordance with the proportion of the dimensions of the original) and to improve (Widening) Image, from a regular television programme. It is also possible to stop the action at any time on the right side of the screen, i.e. the so-called. freeze frame, while the action will unfold continuously on the left side of the screen.
Similarly functioning systems, performing specific functions, may sometimes have different names, depending on the equipment manufacturer.