A Diamond Ring Retrieval Method and System Based on Sketch and Distance Field

Abstract

The invention discloses a method and a system for searching a diamond ring based on a sketch and a distance field. The method comprises the following steps: performing three-perspective projection on a metal ring in the diamond ring, acquiring a metal ring three-perspective projection drawing and extracting a projection image outline, thereby acquiring a three-perspective outline drawing of the metal ring; calculating a distance value at each point on the three-perspective outline drawing of the metal ring, converting the distance value into a corresponding gray value, collecting the gray value at each point of the three-perspective outline drawing of the metal ring and forming a three-perspective distance field grey-scale map of the metal ring and then establishing a three-perspective distance field grey-scale map database of the metal ring; acquiring a three-perspective outline sketch of the metal ring inputted by the user, searching for the three-perspective distance field grey-scale map with the highest similarity with the three-perspective outline sketch of the metal ring inputted by the user from the three-perspective distance field grey-scale map database of the metal ring and then outputting as a target metal ring image; and performing vertical view projection on diamond in the diamond ring and searching for a target diamond image according to a metal ring method and then outputting.

Description

technical field [0001] The invention relates to the technical field of diamond ring retrieval, in particular to a diamond ring retrieval method and system based on a sketch and a distance field. Background technique [0002] As an ornament, diamond rings have been integrated into people's lives, and are often used by lovers as tokens exchanged when they get married. How to quickly pick out a favorite diamond ring is a very difficult thing for people. Therefore, there is an urgent need to effectively retrieve diamond rings. [0003] The existing retrieval methods for 3D models are mainly divided into text-based and content-based retrieval methods. In the text-based 3D model retrieval method, firstly, the text information such as keywords is used to classify the 3D models, and the model is classified according to the keywords of the category. search. This method is not suitable for diamond rings for the following reasons: diamond rings cannot be well defined through text; u...

AI Technical Summary

Problems solved by technology

This method is not suitable for diamond rings for the following reasons: diamond rings cannot be well defined through text; users are not familiar with terms such as diamond ring keywords; adding information to massive diamond ring models requires a lot of manpower and material resources

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