Is the principle of tilt photogrammetry the same as that of photogrammetry?

That's not true. What we see now is the contrast between oblique photogrammetry and traditional images. The concept of photogrammetry is much bigger.

"The traditional image is the image data obtained by continuously taking photos on the ground through the aerial camera carried on the plane, and then through a series of indoor processing. The only result obtained is the information of the overlooking angle of the ground object, that is, the viewing angle is perpendicular to the ground. In the tilt photogrammetry experiment, an airplane or unmanned aerial vehicle is equipped with five cameras to shoot ground objects from four vertical directions, and then through a series of indoor processing such as geometric correction, adjustment and multi-view image matching, data with all-round information of ground objects are obtained. The simple understanding is that the features on the image are on a plane, and the tilt photogrammetry features have a real height. "

If by "photogrammetry" you mean positive image, the general answer is this.