Commodity detection terminal, commodity detection method, system, computer device, and computer readable medium

A commodity detection method, comprising:

• obtaining position information of each grid of a goods shelf in a first image based on the first image, wherein the first image is an image of the goods shelf when no commodity is placed on the goods shelf;
• obtaining a current grid where each commodity is located and a current quantity of the each commodity based on a second image, wherein the second image is a current image of the goods shelf placed with commodities;
• and
• comparing the current grid where the each commodity is located and the current quantity of the each commodity with a preset grid and a preset critical quantity value of the each commodity, so as to determine whether a status of the each commodity satisfies a preset condition.

The commodity detection method according to claim 4411, wherein the first color is red color, the second color is green color, and the third color is blue color;

• and
• obtaining the feature image based on the color channel images extracted and the grayscale image comprises:
• extracting a channel image of the red color,
• obtaining a differential absolute value image of the grayscale image and the channel image of the red color, and obtaining a gradient magnitude image of the differential absolute value image of the grayscale image and the channel image of the red color, and
• setting the gradient magnitude image of the differential absolute value image of the grayscale image and the channel image of the red color as the feature image.