BRDF measurement system and method, electronic device, and storage medium

A bidirectional reflectance distribution function (BRDF) measurement system, comprising a blackbody, a spectroradiometer and a controller,

• wherein the spectroradiometer is connected to the controller;
• and
• wherein, when the blackbody is heated to a target temperature:
• the blackbody undergoes a solid-liquid phase change;
• the spectroradiometer measures the blackbody and transmits a first measurement signal to the controller, and when the blackbody irradiates a to-be-measured point on a sample surface, the spectroradiometer measures the to-be-measured point and transmits a second measurement signal to the controller;
• and
• the controller obtains a BRDF of the to-be-measured point based on the first measurement signal, the second measurement signal, a target geometric relationship, a target mapping relationship and a dimension parameter of the blackbody,
• wherein the target geometric relationship comprises a geometric relationship between the spectroradiometer, the blackbody, and the to-be-measured point, wherein the target mapping relationship includes a mapping relationship between sensitivities of the spectroradiometer at different spectral radiances.