A node processing method, comprising: obtaining node data of a plurality of nodes including position information; characterized by calculating , based on the node data, an angle parameter between a first node and neighboring nodes and a distance parameter between the first node and the neighboring nodes, the first node being any of the plurality of nodes; determining an information amount of the first node based on the angle parameter and the distance parameter; and performing node deletion processing on the plurality of nodes based on the information amount; wherein the calculating , based on the node data, an angle parameter between a first node and neighboring nodes comprises: determining an included angle formed by the first node and both a previous neighboring node and a next neighboring node; calculating an absolute value obtained after 180 degrees are subtracted from the included angle; and using the absolute value as the angle parameter between the first node and the neighboring nodes; wherein the calculating , based on the node data, a distance parameter between the first node and the neighboring nodes comprises: determining a first distance between the first node and a previous neighboring node; determining a second distance between the first node and a next neighboring node; and determining the distance parameter between the first node and the neighboring nodes based on the first distance and the second distance. obtaining node data of a plurality of nodes including position information; characterized by calculating , based on the node data, an angle parameter between a first node and neighboring nodes and a distance parameter between the first node and the neighboring nodes, the first node being any of the plurality of nodes; determining an information amount of the first node based on the angle parameter and the distance parameter; and performing node deletion processing on the plurality of nodes based on the information amount; wherein the calculating , based on the node data, an angle parameter between a first node and neighboring nodes comprises: determining an included angle formed by the first node and both a previous neighboring node and a next neighboring node; calculating an absolute value obtained after 180 degrees are subtracted from the included angle; and using the absolute value as the angle parameter between the first node and the neighboring nodes; wherein the calculating , based on the node data, a distance parameter between the first node and the neighboring nodes comprises: determining a first distance between the first node and a previous neighboring node; determining a second distance between the first node and a next neighboring node; and determining the distance parameter between the first node and the neighboring nodes based on the first distance and the second distance. determining an included angle formed by the first node and both a previous neighboring node and a next neighboring node; calculating an absolute value obtained after 180 degrees are subtracted from the included angle; and using the absolute value as the angle parameter between the first node and the neighboring nodes; wherein the calculating , based on the node data, a distance parameter between the first node and the neighboring nodes comprises: determining a first distance between the first node and a previous neighboring node; determining a second distance between the first node and a next neighboring node; and determining the distance parameter between the first node and the neighboring nodes based on the first distance and the second distance. determining a first distance between the first node and a previous neighboring node; determining a second distance between the first node and a next neighboring node; and determining the distance parameter between the first node and the neighboring nodes based on the first distance and the second distance. <EOS>