home › Firmware › What is camera interpolation in a phone and what is it for? What is camera interpolation? What does 13 megapixel interpolation mean?

What is camera interpolation in a phone and what is it for? What is camera interpolation? What does 13 megapixel interpolation mean?

Camera interpolation, why and what is it?

Like an 8 megapixel matrix, and a 13 megapixel picture itself
This is so as not to twist unnecessary wires to the matrix, megapixels are inflated directly in the process.
This is when a pixel is split into several, so that when enlarged, the image does not appear in squares. Doesn't add real resolution. Smears the drawing.
interpolation is finding an unknown value from known values.
the quality of interpolation in photography (approximation to the original) will depend on well-designed software
The camera sensor is 8MP, and the image is stretched to 13MP. Definitely turn it off. The photos will be 13MP, but the quality will be the same as 8MP (there will be more digital noise).
The real resolution there is in lines per mm without blurring in any case at 2MP.
Well, just bloated pixels
For example, many web cameras say that 720, etc. you look at the settings and there it is 240x320
Interpolation - in a general sense - the use of a less complex function in the calculation in order to achieve a result as close as possible to the absolute one, achievable only with the help of the most accurate and correct actions.
In this version, simply put, programmers praise themselves for the fact that photographs taken with a phone differ slightly from those taken with more complex devices - cameras.

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P2P camera- An IP camera containing software that allows you to identify it and connect to the camera remotely using a unique number (ID number) without using a static IP address or functions such as DDNS and UPnPct. P2P cameras were designed to make it easier for ordinary non-specialist users to set up remote camera access.

How does a P2P camera work?

When a p2p camera is connected to the Internet (via a router or 3G connection), the camera automatically sends a request to remote server, which identifies the camera by its unique ID number. To access the camera and view video, the user needs to install it on the device (computer or mobile devices) a special application from the developer of the IP camera. IN this application the user enters the camera ID number (or takes a photo of the camera QR code so as not to enter the code manually), after which he can view video from the camera online, view the video archive from the SD card, control the PTZ device and use other functions. The server in this case acts as an intermediary, connecting the IP camera and the user’s device directly.

Why is P2P technology needed?

This technology is designed to make IP camera installation as easy as possible for the end user. Without this technology, to remotely access the camera, the user needs to connect a static IP address or have special skills. In the case of P2P cameras regular user spends no more than 10 minutes installing the camera and setting up remote viewing.

Application areas of P2P cameras

P2P cameras allow you to get a full-fledged video surveillance system with remote access from anywhere in the world and easy to install for little money. The main areas of application of P2P cameras:

surveillance of a country house and/or plot
apartment security monitoring
pet monitoring
small business security and point of sale surveillance
patient monitoring
use in state and municipal institutions, etc.

Companies involved in the development and production of P2P cameras

The world leader in the production of P2P cameras is Cisco.

What does "5.0MP Interpolation" and "8.0MP Interpolation" mean?

In description DOOGEE smartphone X5 discovered an interesting and, at the same time, unclear point:
Dual Cameras: 2.0MP (5.0MP Interpolation) Front Camera; 5.0MP (8.0MP Interpolation) Rear camera with flash and autofocus.

What does "5.0MP Interpolation" and "8.0MP Interpolation" mean?
Really, how many megapixel cameras are there - 2 and 5 megapixel or 5 and 8 megapixel?

Living creature

It means “FUCKING”... they pass off shitty cameras as high quality... A 2MP camera programmatically produces a 5MP image... They are trying to sell you a fake... the original DVRs do not use interpolation...

Vladssto

This means that the camera physically has a real resolution of, say, 5MP, and the smartphone has software that moves adjacent pixels apart and adds another pixel between them in color, something in between the neighboring ones, and the output is a photo with a resolution of 8MP.
This doesn’t really affect the quality, it’s just that you can zoom in on a photo with a higher resolution and view the details

The smartphone has an 8 MPix camera. What does interpolation up to 13 MPix mean?

Sergey 5

Up to 13 MPix - it could be 8 real MPix, like yours. Or 5 real MPix. The camera software interpolates the camera's graphics output to 13 MPix, not enhancing the image but electronically enlarging it. Simply put, like a magnifying glass or binoculars. The quality doesn't change.

This means that the camera can take a photo up to 8 MPIX, but in software it can enlarge photos up to 12 MPIX. This means that it enlarges it programmatically, but the image does not become better quality, the image will still be exactly 8 MPIX. This is purely a trick of the manufacturer and such smartphones are more expensive.

Consumer

To put it simply, when creating a photo, the smart processor adds its own pixels to the active pixels of the matrix, as if it calculates the picture and draws it to a size of 13 megapixels. The output is a matrix of 8 and a photo with a resolution of 13 megapixels. The quality doesn't improve much from this.

Violet a

Camera interpolation is a trick of the manufacturer; it artificially inflates the price of a smartphone.

If you have an 8 MPIX camera, then it can take a corresponding picture; interpolation does not improve the quality of the photo, it simply increases the size of the photo to 13 megapixels.

The USSR

Megapixel interpolation is a software blurring of the image. Real pixels are moved apart, and additional ones are inserted between them, with the color of the average value from the colors moved apart. Nonsense, self-deception that no one needs. The quality doesn't improve.

Mastermiha

On Chinese smartphones This is now used all the time, it’s just that a 13MP camera sensor costs much more than an 8MP one, that’s why they set it to 8MP, but the camera application stretches the resulting image, as a result, the quality of these 13MP ones will be noticeably worse if you look at the original resolution.

In my opinion, this function is of no use at all, since 8MP is quite enough for a smartphone; in principle, 3MP is enough for me, the main thing is that the camera itself is of high quality.

Azamatik

Good day.

This means that your smartphone stretches a photo/image taken with an 8 MPix camera to 13 MPix. And this is done by moving the real pixels apart and inserting additional ones.

But, if you compare the quality of an image/photo taken at 13 MP and 8 MP with interpolation to 13, then the quality of the second will be noticeably worse.

Doubloon

This means that in your camera, as there were 8 MPIX, they remain the same - no more and no less, and everything else is a marketing ploy, a scientific fooling of the people in order to sell the product at a higher price and nothing more. This function worthless, the quality of the photo is lost during interpolation.

Moreljuba

This concept assumes that the camera of your device will still take photos at 8 MPIX, but now in software it is possible to increase it to 13 MPIX. At the same time, the quality does not become better. It's just that the space between the pixels gets clogged up, that's all.

Gladius74

Interpolation is a method of finding intermediate values

If all this is translated into a more human language, applicable to your question, you get the following:

The software can process (enlarge, stretch)) files up to 13 MPIX.

Marlena

The fact is that the real camera in such phones is 8 megapixels. But with the help of internal programs, images are stretched to 13 megapixels. In fact, it doesn't reach the actual 13 megapixels.

Camera in a mobile phone

For several years now, manufacturers have been combining Cell phones with digital cameras. Such a camera is called digital because the image obtained with its help consists of dots, and the quality and quantity of these dots can be described in numbers, and therefore saved on modern digital media. Accordingly, quality digital camera It is customary to determine the maximum number of points in which the camera can save the resulting image. Of course, for professional separately made cameras, many other parameters are also important, such as the quality of the optics, the size of the light-sensitive matrix that directly receives an analog image from the lens, the operating principle of the matrix itself (CMOS, CCD) and much more. For cameras that are housed in a phone body and do not have high-quality optics, have minimum matrix sizes and other similar minimization tricks, the main parameter remains the maximum number of points at which the camera can perceive the image from the lens. But many cameras can save an image in the phone’s memory in a higher resolution, this is called interpolation. During interpolation, the image obtained physically and realistically is enlarged programmatically to the dimensions declared by marketers. This operation can be performed on any computer, so the presence of such a function as interpolation is very doubtful in any not only phone, but also camera. So, choosing a phone with the most best camera, take the time to read the description of each device on the Internet so as not to run into an interpolation image.

Camera quality, or image size, is usually measured in megapixels. In our opinion it will be: millions of points. The more points the camera matrix can digitize an image, the better, in principle. All other factors being equal, we can assume that a 4 megapixel camera takes pictures, not 2, of course, there are other features, but somewhat better than a two megapixel camera. Although, it should be noted that there are cases when, with good optics, a high-quality matrix digitizes better than its low-quality multi-pixel counterpart.

Typically there are cameras of 0.3 megapixels (640x480), 1.3 megapixels (1280x960), 2 megapixels (1600x1200) and 4 megapixels (2304x1728). The lack of a normal flash and high-quality optics makes even a four-megapixel photo still not enough good quality for printing an image on photo paper. Flaws will be visible to the naked eye. However, with good natural (sun) lighting, a 1.3 megapixel camera is already capable of creating an image that, when printed on standard 10x15 size photo paper from an outstretched arm, will not differ from an image taken with a good camera.

Article provided by the site Mobile Life from Dolche-Mobile.Ru

What is camera interpolation?

Everyone has modern smartphones There are built-in cameras that allow you to enlarge the resulting images using special algorithms. From a mathematical point of view, interpolation is a method of detecting intermediate values of a number from an existing set of discrete parameters.

The interpolation effect is somewhat reminiscent of a magnifying glass. The smartphone software does not increase the clarity and sharpness of the image. It simply expands the image to the required size. Some smartphone manufacturers write on the packaging of their products that the built-in camera has a resolution of “up to 21 megapixels.” Most often we are talking about an interpolated image, which is of low quality.

Types of interpolation

Nearest neighbor method

The method is considered basic and belongs to the category of the simplest algorithms. Pixel parameters are determined based on one nearest point. As a result of mathematical calculations, the size of each pixel doubles. Using the nearest pixel method does not require much computing power.

Bilinear interpolation

The pixel value is determined based on data from the four closest points recorded by the camera. The result of the calculations is a weighted averaging of the parameters of the 4 pixels that surround the origin. Bilinear interpolation allows you to smooth out transitions between the color boundaries of objects. Images obtained using this method are significantly superior in quality to images interpolated using the nearest pixel method.

Bicubic interpolation

The color value of the desired point is calculated based on the parameters of the 16 nearest pixels. The points that are closest to each other receive the maximum weight in the calculation. Bicubic interpolation is actively used software modern smartphones and allows you to get a fairly high-quality image. Application of the method requires significant power central processor and high resolution built-in camera.

To avoid asking unnecessary questions:

Advantages and disadvantages

Science fiction films often show how the camera captures the face of a passerby and conveys digital information computer. The machine enlarges the image, recognizes the photo and finds the person in the database. IN real life interpolation does not add new details to the image. It simply enlarges the original image using a mathematical algorithm, improving its quality to an acceptable level.

Interpolation defects

The most common defects that occur when scaling images are:

Stepping;
Blur;
Halo effect.

All interpolation algorithms allow maintaining a certain balance of the listed defects. Decreasing the aliasing will definitely cause an increase in image blur and halos. Increasing the sharpness of the image will lead to increased blurriness of the image, etc. In addition to the listed defects, interpolation can cause various graphic “noises” that can be observed at maximum image magnification. We are talking about the appearance of “random” pixels and unusual this subject textures

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