Internal:Hybrid Computing
Distributed Noisy Intermediate-Scale Quantum Computers (D-NISQ)
The D-NISQ model presented by [1] describes a hierarchical architecture of hybrid classical/quantum processors to break up large computations into smaller sub problems. Resource management of limited qubits and noisy quantum computation make domain decomposition a necessary method to practically use many quantum algorithms. The D-NISQ model has four layers. Consider the application to Quantum Hadamard Edge Detection qHED:
Decomposition Layer
The first layer is performed classically.

References
[1] Acampora, Giovanni, et al. “D-NISQ: A Reference Model for Distributed Noisy Intermediate-Scale Quantum Computers.” Information Fusion, vol. 89, 2023, pp. 16–28., https://doi.org/10.1016/j.inffus.2022.08.003.