The phrase "a visual method" is correct and usable in written English.
It can be used when referring to a technique or approach that relies on visual elements to convey information or achieve a goal.
Example: "In our research, we employed a visual method to present the data, making it easier for the audience to understand the trends."
Alternatives: "a visual approach" or "a graphical technique".
Photoelasticity provides a visual method of observing the strain on an object by viewing the effects of polarized light on a bi-refringent (double-refracting) material bonded to the object.
It's not the first time I've seen bubbles as a visual method to encourage discovery.
The paper describes a visual method for the navigation of autonomous floor-cleaning robots.
Eckmann et al. [1] introduced a visual method to investigate such recurrences.
The discrete mathematical wheel sinkage calculation model, for which the input is acquired through a visual method, is built.
Historically, sudden transitions could only be detected by a visual method or by offline analysis of the data.
Framework analysis is a systematic, visual method of analysing qualitative data and has five stages; familiarisation, identifying a thematic framework, indexing, charting, mapping and interpretation.
A qualitative, visual method to explore the potential for subgroup effects was provided by a modification of the forest plot, i.e., adding a vertical axis indicating the proportion of a subgroup variable in the individual trials.
This blending of a new visual method, unfamiliar to many eyes, with the stream of verbal acidity is hardly an unqualified success, but the ambition is an honorable one, and the unhappy land that the film reveals is not one that Nichols cared to revisit, on the big screen, for too long.
This paper presents a novel visual method to measure displacements at nanometric scale along two axes.
A particle video microscope (PVM) probe, which provides in situ digital images, was used as a direct visual method to test the reliability of the FBRM results.
