Motion vectors are utilized in which type of video coding?

Motion vectors are a fundamental component of interframe coding, which is a technique used to compress video by exploiting the temporal redundancy between consecutive frames. In interframe coding, rather than encoding each frame independently, the encoder uses motion vectors to describe the movement of objects between frames. This allows the encoder to represent the differences and changes between frames efficiently.

By relying on motion vectors, the encoder can only transmit the changes needed from a reference frame, rather than sending complete information for each frame. This significantly reduces the amount of data that needs to be processed and transmitted, resulting in better compression rates and reduced bandwidth usage while maintaining visual quality.

In this context, spatial coding is focused on compressing information within a single frame without considering the frames before or after it. Chunks coding and bitrate coding do not specifically relate to the use of motion vectors in the same targeted manner as interframe coding does, and therefore are not applicable in this scenario.