Pointer Clicker is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn more

What Is Frame Interpolation on a Projector?


The quality of many motion videos, including movies we watch in our homes, has become better over time. Many video-playing devices, such as projectors, have several ways to improve video quality. Traditionally, motion videos came with 24 to 30 frames per second (fps) frame frequency.

Lately, many modern devices have tried to improve the quality of videos through frame interpolation. These devices can increase the frame frequency to 60, 120, and even 240 frames per second. Therefore, frame interpolation is a feature that artificially increases the frame rate to improve video quality. 

Frame interpolation is an built-in feature found in video playing devices that artificially improve video images. The feature works by inserting interim frames between existing frames. The interim frame is an estimation from the previous and next frames.

New-age projectors have an algorithm or code that helps increase frame frequency. Different manufacturers of these devices use different algorithms for frame interpolation. Ultimately, the main goal of the projectors is to reduce motion blur while interpolating the motion videos. 

What Is Frame Interpolation?

To understand the importance of frame interpolation, you must understand how motion videos work.

First, frames are still image segments of the videos which make up the complete motion videos. 

Hence, frame interpolation generally improves the frames by generating interim frames between original frames. 

Interim frames are more of an estimate of the next frame, thus, constructing new frames from existing ones. 

Typically, video frames play at 24 to 30 frames per second. For frame interpolation, the projector will enhance the look of the frames by generating a new frame. 

After adding the new frames, more frames will play per second. Therefore, the frame frequency will increase to generally improve video quality. 

Additionally, the new frame comes in between the existing frames. Some projectors like the Panasonic AE3000  can simultaneously create up to 3 interim frames. 

PT-AE3000U LCD 1080P Proj
Click image for more info

Other projectors such as the Epson 6500UB  and Sanyo Z3000  only generate one interim frame.

Epson Powerlite 6500UB Projector
Click image for more info

However, digital artifacts may occur due to the generation of “false” frames. The artifacts bring about motion judder because Interpolation will create new frames between existing ones. 

Motion blurs or judders cause the video to appear surreal despite efforts to improve it. 

While eliminating motion blurs, the surreal effect makes a movie look more digital. 

The effect is commonly known as the soap opera effect. Some people may choose to ignore it since it affects different videos in different manners. 

Also, different high-end devices show various degrees of the soap opera effect.

Additionally, different motion pictures can use different projectors during motion enhancement. Some animation films work with specific projectors, while more traditional films work well with other types.

Is Frame Interpolation Important?

Frame interpolation can only occur if the projector you have has access to the option. 

The frame interpolation option will come in different names for different brands of projectors. Alternatively, video motion and motion soothing can be interchanged with frame interpolation.

As shown above, frame interpolation improves video quality by giving it a more stable view.

Even though the soap opera effect is undesirable, most animation films and real-time videos use this to their advantage. 

Therefore, projectors will exaggerate the digital effects of such videos to try and give a crisp final image. Sports fanatics can apply this effect to enjoy overall better video quality. 

The larger the video projection, the less noticeable the undesirable effects are. Therefore, the impact of frame interpolation can easily be seen on a plasma TV than on a projector.

 Also, minimal motion effects, such as ghosting, will be unnoticeable.

Consequently, if you want to enjoy better quality videos with minimal effects, it is advisable to use a projector. Better projectors, especially those up to date, such as BenQ HT5550 , give even better interpolation features. 

BenQ HT5550 True 4K UHD Home Theater Projector
Click image for more info

Should I Use Frame Interpolation?

Using frame interpolation is more of a personal choice. The main reason for using frame interpolation is to display motion videos more realistically. 

The traditional way of displaying motion videos causes a flickering effect to simulate motion. 

Projectors have an advantage over plasma TVs during frame interpolation. Moreover, projectors can produce a higher frame frequency at a time. 

Therefore, the images will emerge better with minimal artifacts and motion judder. 

Additionally, projectors’ algorithms have a better sequence to apply on frame interpolation. 

Powerful projectors, for example, JVC DLA-NX5 , can include more than one interim frame for a video sequence. Mostly, these projectors are suitable for viewing traditional films and real-time videos like news broadcasts.

Ultimately, the use of frame interpolation greatly depends on your personal preference.

Also, the complementary features on your projector will significantly influence your video quality. 

Remember to check on the different features available for frame interpolation and adjust your settings. 

How Do I Interpolate a Frame?

Sometimes, the names of the frame interpolation option in the settings might differ. However, the settings are mainly found in the image option of the settings. Ensure the projector is on and projecting the motion video of your choosing. 

  1. First, go to the settings option of the projector. 
  2. Then, go to the image option of the settings. Select the frame interpolation feature from the menu and press enter.
  3. Afterward, select the level of frame interpolation from the options given and press enter. 
  4. After you are done, press the menu button to activate the setting. 

Check your connection to the projector and test to see if frame interpolation is on. If there is any noise in the resulting image, turn off the frame interpolation option. 

While using a projector with frame interpolation, check on the WUXGA and 4K resolutions. These enhancements should be off to prevent interference of the images during frame interpolation. 

Therefore, the images should remain within the normal pixel range for better Interpolation.

Also, make sure other image settings in the projector are off when using frame interpolation. Default image settings prevent motion blurs or motion ghosting trails. 

FAQs

What Is the Difference between Frame Interpolation and Image Interpolation?

Frame interpolation is the method of constructing new frames and inserting them between existing frames. 

Epson Projector - Frame Interpolation

It is done only for video sequencing to improve the quality of the videos. The frame interpolation feature is mostly built-in through code to create an algorithm.

However, image interpolation distorts or resizes an image to make it clearer. Therefore, you can increase or decrease the pixels from one grid to another. Then, the image quality will improve when changing the pixels. 

For instance, zooming is a way of increasing image pixels.

Therefore, frame interpolation improves the video quality while image interpolation improves image quality. 

Frame interpolation is mainly done to enhance motion videos by increasing interim frames. Image interpolation improves image quality by changing the number of pixels in the image.

Do TVs Have Interpolation?

Absolutely YES. Many new-age televisions come with built-in frame interpolation features. Most digital television sets have this setting on default. You can switch off or change these settings at any time.

Hisense ULED Premium 65-Inch Class U8G Quantum Series Android 4K Smart TV
Click image for more info

However, the main issue with frame interpolation in TVs is the motion judder and soap opera effect. Nonetheless, frame interpolation works better when watching sports and animation films. 

Watching movies brings about a surreal effect while using frame interpolation.

Different manufacturers have different algorithms in use when interpolating frames for motion smoothing. 

Therefore, some TV sets will have minimal undesirable effects while playing motion videos. 

Additionally, you can easily adjust the frame interpolation settings to serve the proper purpose on motion videos. Some settings work well while playing games on the TV, while others work well while watching sports and games. 

Also, you can change your motion interpolation settings to prevent motion judder. 

The frame frequency rate that your TV offers will determine the judder effect. 

Therefore, a TV will easily interpolate your video from 30fps to 60 fps instead of a video at 24fps. 

Since 30 is divisible by 60, motion interpolation will fit the extra frames equally without any problems. 

However, you might choose to ignore the side effects of frame interpolation on your TV. Sensitivity to motion smoothing varies from person to person. Therefore, it might not be necessary to use this feature on your digital TV.

Do Monitors Have Interpolation?

Unfortunately, monitors do not apply frame interpolation as modern standard televisions do. Frame interpolation is a feature that is already built into the hardware of the video-playing device. 

Thus, monitors lack the features that allow modern TVs to carry out frame interpolation.

Monitors cannot offer frame interpolation features because Interpolation brings latency in loading the interim frames. 

Comparatively, smart TV manufacturers have invented ways to incorporate the additional frames with minimal delay. 

Therefore, many PC monitors cannot keep up with the laying speed of the new frames which follow the existing ones.

However, one can induce frame interpolation in their monitors since it does not come automatically. 

Downloading an application, such as the SmoothVideo Project (SVP) so your monitor induces Interpolation. The application allows the monitor to copy high-end TVs and projectors’ techniques to increase the frame rate.

There are also graphic cards that form part of the monitor’s hardware, and they mainly generate images for display. The cards can also work to induce frame interpolation by generating new intermediate frames. 

black graphic cards

Therefore, if you prefer to use Interpolation on your monitor, you will have to go through extra measures. 

How Many Methods Can You Use for Frame Interpolation?

There are mainly three methods to use for frame interpolation. They include frame averaging, estimating motions, and using artificial intelligence.

Frame averaging involves overlaying two adjusting frames on top of one another. However, this algorithm produces blurry frames. Videos that have more motion will have more motion jitters. Therefore, the method does not offer smoother images in the long run.

The algorithm made for motion estimation is more complex than frame averaging. It requires the frame to be broken into smaller blocks. 

The blocks require estimation in their movement to organize the new frame. Although the motion estimation works perfectly for still images, there might be a slight distortion in the videos.

The use of artificial intelligence in frame interpolation is the best option. It is the most complex of all methods and the most accurate. 

AI models can clearly distinguish between foreground and background elements of a frame. Therefore, this method creates a perfect reconstruction of frames even through estimation. 

using ai to interpolate 30fps to 60fps – flowframes tutorial

Conclusion 

Frame interpolation is a fantastic feature that exposes viewers to a better experience when watching motion pictures. 

It allows videos to have a better image by increasing the number of frames between existing frames. Projectors have better video features brought by frame interpolation and minimal side effects of Interpolation. 

It is easy to access motion smoothing features on your projector. Additionally, ensure your image settings are on default before accessing frame interpolation settings.

Last update on 2022-07-03 / Affiliate links / Images from Amazon Product Advertising API.


Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.