This week we started to learn about match move.
To begin with, we started by undistorting the video, which helps in taking out the curvy look created due to the camera lens.
After making the video undistorted, we use match move process and redistort the video all over again.
If we do not have the checkerboard for undistorting, we have to create these grids manually by hand.

Getting back to tracking, before do it the plate needs to be denoised, and graded as per needed in order to get a proper visuals for the desired track.

While tracking we did get errors which were calculated to around 0.91, as it was below 1 and the errors were not in an important position we rejected the errors and updated it to remove the errors.

These tracks could be seen in 3D viewer itself,
Where we allotted it a ground plane by selecting respective track points. These 3D Tracking points also helped us to set 3D geometry to them.

For 3D visualisation we started by taking Cube and with the help of SCANLINE RENDER and camera we were able to have a 3D visualisation of it.
Our main motive of this was to get familiar to 3D structure in Nuke software. Surprisingly, the 3D is Nuke is also good. It feels as if it was a 3D software to begin with.

With the help of ReadGeo node we can also import 3D objects from other softwares. And Scene node helps in merging 1 or more 3D objects together.

Getting back to tracking, before do it the plate needs to be denoised, and graded as per needed in order to get a proper visuals for the desired track.

While tracking we did get errors which were calculated to around 0.91, as it was below 1 and the errors were not in an important position we rejected the errors and updated it to remove the errors.

These tracks could be seen in 3D viewer itself,
Where we allotted it a ground plane by selecting respective track points. These 3D Tracking points also helped us to set 3D geometry to them.

This week mainly focused on cleaning in nuke. removing elements that are unwanted is a very important step in the movie industry. though it’s challenging it’s also very essential. Cleaning up the scene is obtained by taking all the previous lectures into consideration. For this video I have cleaned up a paper on the brown board. It was obtained with the help of paint tool which helps me in cloning the colour surrounding it. With the addition of track the paint was stuck to the point on the board for the entire video.

Along with the cleanup I have also added a ground break to the plate. This ground break was created by me in the past in the software of Houdini. It specifically was created for a green screen project. Basically the ground had various constraints such as glue, active region etc. and with the help of external forces it breaks into pieces. I’ve given the groundbreaking a green texture which could be keyed in any software.

this helped me in achieving the shown result.

The task this week was to change the advertisement on the given video.

To obtain the result I have used planer tracker, which helps in tracking a particular plane or a surface and give a 3-D visualisation or a four point play in two us. The difficult part of planner tracking is that it gets messed up if the point given collides or disappear at a given frame. To solve this problem what I did was I change the reference frame to where the points are clearly visible. After the track is done I have taken the corner pin absolute node in order to get the exact transformation of the track that was taken.

This corner pin track was added to the two advertisement which I transformed colour graded as per needed to match the given plate. After this I pray multiplied it so that I can get the alpha of the images on the advertisement that I wanted to be there. After this step I rotoed the pole and merged it along with the main plate so that it is on the top of the advertisement as I wanted to be.

In this week, Color grading and correction along with the concept of premultiplying and un-premultiplying was taught. Were the assignment for the same was color grading the images of and trying to blend the air plane as much as we can with the background sky.

The second assignment for the same week was color grading a RAW image while using rotoscoping as well as grade and color correction.

The goal for these weeks was to learn the proper traditional way of rotoscoping in softwares. This was a really fun week as we were getting started with Nuke and its various nodes. Rotoscoping was really a long process and alot of times you have to roto for each frames resulting in your time. Tracking the footage also helps in attaching the rotos to the footage.

For week 4 we came across the basic of Roto-scoping in Nuke. We were introduces to the ways in which various rotos can be achieved and how flexible the tools of the Roto node is. Along with roto node we were also introduces to nodes such as Matte-check, filter erode.

In the week 5 we came across the node tracking in NUKE. It was really convenient on how we can connect few of the rotos to the tracks and not going through the trouble of moving it each and every frame. Tracking really helps by taking tons of load various time. But at times the tracking point gets disappear so we have to be careful while checking our tracking point as it might cause errors while adding rotos to it.