What is HD?
The so-called high-definition, simple point of view is a high degree of clarity, and the standard used to measure the definition of the screen is the resolution, so high-definition also makes high resolution, the English saying is "High Definition", which is the HD used to indicate The origin of high definition.
Usually the HD in our lives is generally referred to as HD equipment and HD resources:
High-definition devices refer to some display devices, such as high-definition televisions, high-definition projectors, high-definition set-top boxes, etc. These devices can play high-definition effects.
HD resources generally refer to HD movies, videos, and pictures.
Tips: General HD resources require a certain amount of high-definition equipment to play the original effect, and one of the more ideal is some high-definition projectors, which is why you go to the cinema to see the best film effect.
What is 1080p?
1080p is a format for high-definition video display. Its audience is becoming higher and higher as people demand more and more video quality. The number 1080 indicates that there are 1080 horizontal scanning lines in the vertical direction, and the letter P means Progressive Scan. Usually 1080P screen resolution is 1920×1080, which is generally referred to as high-definition television.
Tip: 32-inch LCD TVs have a physical resolution of 1366*768, but the specification may indicate 1080p, which means that 1920*1080 images are processed into 1366*768. This 1080P is the highest resolution or display resolution. It only means that the TV can receive 1920*1080 signals, but the display is not 1920*1080.
What is 4K?
4K resolution is a new resolution standard for digital cinema and digital content. The 4k name derives from its lateral resolution of approximately 4000 pixels. The 4K resolution is a development trend that is 4096×2160 pixel resolution.
Tips: Many TV sets are now marked with 4K. Actually, this does not mean that the quality of the video played on this TV is the standard 4K, but it means that it can decode 4K sources.
What is resolution?
Resolution is a measure of image clarity and is intended to show how many pixels the display can display. The higher the resolution, the higher the image quality.
For example, if you have a screen resolution of 1024x768, you have 1024 columns and 768 rows.
What is a pixel?
"Pixel" is a unit used to calculate digital images. If we enlarge an image several times, we will find that this image is composed of many small squares with similar colors. These small squares are the smallest of the images. The unit "Pixel". This smallest unit of graphics can display on the screen usually a single spot of staining. The higher the pixel number, the more the fidelity of the original image quality can be expressed.
What is Ultra HD?
Ultra HD is the official name of the display “4K resolution (3840×2160 pixels)†being defined as “Ultra HDâ€. At the same time this name also applies to "8K resolution (7680 x 4320 pixels)." The current technical high-definition television resolution is 1920*1080 physical resolution.
What is naked eye 3D?
The naked eye 3D technology is a kind of parallax barrier technology, lenticular lens technology, or two liquid crystal panel MLD technologies that can be overlapped by a certain interval to achieve the effect of displaying 3D images when viewing text and pictures without using dedicated glasses. Such as naked eye 3D TV equipped with parallax barrier technology, you can achieve naked eye to watch 3D TV. This is to omit the 3D eyes that we need to wear relative to the 3D movie we see at the cinema, so that we can see the 3D effect directly on the screen!
What is Blu-ray?
Blu-ray, also known as Blu-ray Disc, is often referred to simply as BD. It is a high-quality audio-visual storage disc media. Blu-ray or Blu-ray discs use short-wavelength blue lasers to read and write data, and thus get its name.
Blu-ray greatly improves the storage capacity of optical discs. Compared to reading or writing data using a red laser that is used by a conventional DVD, generally, a laser having a shorter wavelength can record or read more information per unit area.
What is hdtv?
High Definition Television. Simply put, a high-definition television should be a transparent system. A normal-sighted audience is seen at a distance of three times the height of the system's display screen. The quality of the image should be as good as the impression of viewing the original scene or performance. Its horizontal and vertical resolution is about twice that of conventional televisions, and it is equipped with multiple surround sounds.
What is H264?
H264 is also called H.264, but it is usually abbreviated as H264 or x264. It is a digital video compression format and a video coding and decoding technology standard. Compared with other existing video coding standards, it provides better image quality at the same bandwidth. With this standard, the compression efficiency at the same picture quality is about two times higher than that of the previous standard (MPEG2).
What is H.265?
H.265 is an upgrade to H.264 and is an extension and optimization of the original H.264 standard. H.265 aims to transmit higher-quality network video under limited bandwidth, and only needs the original half bandwidth to play the same quality video. This also means that our smartphones, tablets and other mobile devices will be able to play 1080p full HD video directly online. The H.265 standard also supports 4K (4096*2160) and 8K (8192*4320) Ultra HD video.
Why is H265 more efficient than H264? H265/HEV video coding uses the same methods as H264/AVC, including picture frame prediction, transform coding, and quantization. However, H265/HEVC includes a coding unit (CUS), a prediction unit (PU), and a transform unit (TUS).
If peak signal-to-noise ratio and video quality are used as subjective evaluation standards to measure the efficiency of a video coding mechanism, H.265 can provide better coding efficiency in this subjective evaluation, which is 51% to 74% lower than that of H.264 bitstream. %.
The so-called high-definition, simple point of view is a high degree of clarity, and the standard used to measure the definition of the screen is the resolution, so high-definition also makes high resolution, the English saying is "High Definition", which is the HD used to indicate The origin of high definition.
Usually the HD in our lives is generally referred to as HD equipment and HD resources:
High-definition devices refer to some display devices, such as high-definition televisions, high-definition projectors, high-definition set-top boxes, etc. These devices can play high-definition effects.
HD resources generally refer to HD movies, videos, and pictures.
Tips: General HD resources require a certain amount of high-definition equipment to play the original effect, and one of the more ideal is some high-definition projectors, which is why you go to the cinema to see the best film effect.
What is 1080p?
1080p is a format for high-definition video display. Its audience is becoming higher and higher as people demand more and more video quality. The number 1080 indicates that there are 1080 horizontal scanning lines in the vertical direction, and the letter P means Progressive Scan. Usually 1080P screen resolution is 1920×1080, which is generally referred to as high-definition television.
Tip: 32-inch LCD TVs have a physical resolution of 1366*768, but the specification may indicate 1080p, which means that 1920*1080 images are processed into 1366*768. This 1080P is the highest resolution or display resolution. It only means that the TV can receive 1920*1080 signals, but the display is not 1920*1080.
What is 4K?
4K resolution is a new resolution standard for digital cinema and digital content. The 4k name derives from its lateral resolution of approximately 4000 pixels. The 4K resolution is a development trend that is 4096×2160 pixel resolution.
Tips: Many TV sets are now marked with 4K. Actually, this does not mean that the quality of the video played on this TV is the standard 4K, but it means that it can decode 4K sources.
What is resolution?
Resolution is a measure of image clarity and is intended to show how many pixels the display can display. The higher the resolution, the higher the image quality.
For example, if you have a screen resolution of 1024x768, you have 1024 columns and 768 rows.
What is a pixel?
"Pixel" is a unit used to calculate digital images. If we enlarge an image several times, we will find that this image is composed of many small squares with similar colors. These small squares are the smallest of the images. The unit "Pixel". This smallest unit of graphics can display on the screen usually a single spot of staining. The higher the pixel number, the more the fidelity of the original image quality can be expressed.
What is Ultra HD?
Ultra HD is the official name of the display “4K resolution (3840×2160 pixels)†being defined as “Ultra HDâ€. At the same time this name also applies to "8K resolution (7680 x 4320 pixels)." The current technical high-definition television resolution is 1920*1080 physical resolution.
What is naked eye 3D?
The naked eye 3D technology is a kind of parallax barrier technology, lenticular lens technology, or two liquid crystal panel MLD technologies that can be overlapped by a certain interval to achieve the effect of displaying 3D images when viewing text and pictures without using dedicated glasses. Such as naked eye 3D TV equipped with parallax barrier technology, you can achieve naked eye to watch 3D TV. This is to omit the 3D eyes that we need to wear relative to the 3D movie we see at the cinema, so that we can see the 3D effect directly on the screen!
What is Blu-ray?
Blu-ray, also known as Blu-ray Disc, is often referred to simply as BD. It is a high-quality audio-visual storage disc media. Blu-ray or Blu-ray discs use short-wavelength blue lasers to read and write data, and thus get its name.
Blu-ray greatly improves the storage capacity of optical discs. Compared to reading or writing data using a red laser that is used by a conventional DVD, generally, a laser having a shorter wavelength can record or read more information per unit area.
What is hdtv?
High Definition Television. Simply put, a high-definition television should be a transparent system. A normal-sighted audience is seen at a distance of three times the height of the system's display screen. The quality of the image should be as good as the impression of viewing the original scene or performance. Its horizontal and vertical resolution is about twice that of conventional televisions, and it is equipped with multiple surround sounds.
What is H264?
H264 is also called H.264, but it is usually abbreviated as H264 or x264. It is a digital video compression format and a video coding and decoding technology standard. Compared with other existing video coding standards, it provides better image quality at the same bandwidth. With this standard, the compression efficiency at the same picture quality is about two times higher than that of the previous standard (MPEG2).
What is H.265?
H.265 is an upgrade to H.264 and is an extension and optimization of the original H.264 standard. H.265 aims to transmit higher-quality network video under limited bandwidth, and only needs the original half bandwidth to play the same quality video. This also means that our smartphones, tablets and other mobile devices will be able to play 1080p full HD video directly online. The H.265 standard also supports 4K (4096*2160) and 8K (8192*4320) Ultra HD video.
Why is H265 more efficient than H264? H265/HEV video coding uses the same methods as H264/AVC, including picture frame prediction, transform coding, and quantization. However, H265/HEVC includes a coding unit (CUS), a prediction unit (PU), and a transform unit (TUS).
If peak signal-to-noise ratio and video quality are used as subjective evaluation standards to measure the efficiency of a video coding mechanism, H.265 can provide better coding efficiency in this subjective evaluation, which is 51% to 74% lower than that of H.264 bitstream. %.
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