JVET-AQ0198 Visualization of ECM Progress: Capturing Faint Prints of Tool Evolution AHG 6 [T. Ikai, K.-W. Liang (Sharp)] [late]

The Enhanced Compression Model (ECM) has been developed through multiple exploration phases, during which a large number of coding tools and syntax elements have been introduced, modified, or removed. While coding-efficiency measurements remain the primary criterion for evaluating coding technologies, they do not always provide a direct view of how the model structure and syntax space have evolved over time. The analysis focuses on static characteristics such as source-code growth, macro-based tool adoption, and the number of unique normalized syntax elements observed across ECM versions.

The intention of this analysis is not to replace coding-efficiency or complexity measurements. Instead, it is intended to complement such evaluations by providing a reproducible overview of the ECM exploration process from a syntax and source-code perspective.

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