Abstract: A method may include obtaining a petrographic image. The method may further include determining various region proposals based on the petrographic image and a selective searching function. A respective region proposal among the region proposals may correspond to various pixels in the petrographic image according to a predetermined dimension. The method may further include determining color histogram data for the petrographic image. The method may further include determining input image data based on the petrographic image, the region proposals, and the color histogram data. The method may further include determining a rock object using the input image data and a machine-learning model.

Abstract: A computer-implemented method for generating training samples via 3D modeling for machine learning-based greenhouse gas emission detection is described. The method includes generating at least one 3D model corresponding to a real-world facility and at least one 3D model corresponding to gas plume emissions and building a virtual environment comprising a 3D field based on the at least one 3D model corresponding to the real-world facility and the at least one 3D model corresponding to gas plume emissions. The method also includes capturing images or video of the 3D field via simulation of the virtual environment and assigning labels to objects in the images or videos.