Has any attempt been made to change the "plane" of the orbit (not altitude) of a satellite, across earth's diameter, continuously in small steps, from pole to pole for a satellite with zero inclination, and from East to west for a satellite with 90 degree inclination?. Will this help us in giving a 3D scan of earth surface?
Your comment on this answer has, I think, led me to understand what you are really asking about.
What I am saying is that, presuming the inclination to be ZERO (Plane of orbit parallel to the equatorial plane), the entire plane keeps shifting from pole to pole - parallel to the equatorial plane.
You want to move the orbit like this:
If that is the right interpretation, no, you can't do that.
The center of mass of the Earth must lie in the plane of the orbit.
Since the Earth is very close to spherical, the gravitational attractions from each part of it add up to an attraction towards the center of the Earth. Even if an object started on one of those circles above or below the equatorial plane, Earth's gravity would pull accelerate it in a plane that intersects the spacecraft's position and the center of the Earth. That would be the orbital plane, and all orbital planes around spherical bodies pass through the center of the body.
Quoted from this answer.
Inclination changes are very expensive in terms of delta V/fuel. To do a 90 degree plane change you are thrusting against your current ~7 kilometer a second velocity to bring it to zero and also adding thrust to get a ~7 kilometer per second velocity in the new orbital plane. This is more than it took to get into orbit in the first place, and would require a truly substantial rocket.
As it happens you do not need to do this, a launch into high inclination polar orbit of the right period (height) can observe the whole of earths surface over time, with various missions building models of the earth with only the needed thrust to avoid unwanted inclination changes.
Although a little vexing, the GIF below and the answer it comes from shows that even fixed orbit will eventually pass over all places on a body that rotates underneath it that are at any latitude smaller than the inclination.
That being said you have to choose an altitude that spread them out evenly so that you don't have to wait a very long time.
That being said if you needed to be almost directly overhead of every point for say top-down imaging and it wasn't okay to cover a swath that was hundreds of kilometers wide by looking at some areas from says 10 or 20 degrees away from top-down for some reason, and you were in a big hurry, there are geometrical advantages under those constraints to first doing a low inclination orbit which would cover low latitudes more effectively in a short period of time then switching once to a nearly polar orbit to cover the higher latitudes more quickly.
As @GremlinWrangler's answer points out, this is a very demanding orbit change and would require your satellite to be more of a flying fuel tank than an Earth observation satellite, but if you absolutely had to scan the enter planet, viewing almost exactly top-down at each point, as absolutely fast as possible, then you could build a flying fuel tank and do it!
However you might consider just going to a higher altitude if possible. For example, from a 1000 km high polar orbit each 100 km wide swath would be within +/- 3 degrees of vertical, and each orbit will cross the equator twice. In 15 days you would have seen every location on Earth and viewed it within +/- 3 degrees of top town.
If you don't mind looking at 10 or 20 degrees, then a lower orbit would do what you need even faster!
See also answers to
- Analytical expression for the ground track of the International Space Station
- Trying to understand the two "holes" in this alt/az plot of the ISS
and from this answer to How do I determine the ground-track period of a LEO satellite?