14.3. Architectural Approaches to Video Processing

Early architectures for video concentrated on optimizing a single operation. To this end, different types of array processors and single-instruction multiple data (SIMD) machines were proposed for video operations, and SIMD has been widely used for motion estimation. Figure 14-5 shows the SIMD motion estimation architecture proposed by Yang et al. [585]. This machine uses an interconnection network to shuffle the data values as required between processing elements (PEs) in order to minimize the number of frame-memory accesses to pixels.

Figure 14-5. The motion estimation architecture of Yang et al (ref. 585).

SIMD machines can implement regular video operations very efficiently. However, ...

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