Optical decoding device which can decode invisible code and color code

An optical decoding device, comprising:

• an image sensor, configured to sense first sensing images and second sensing images, wherein the second sensing image comprises images of a color code;
• a processing circuit, configured to determine a relative movement between the optical decoding device and an object according to the first sensing images;
• and
• a decoding device, configured to decode the second sensing images in a first mode to generate a decoding result and does not decode the second sensing images in a second mode;
• wherein the color code comprises:
• a location region with a first color;
• a plurality of code regions, wherein each one of the code regions comprises a first sub code region and a second sub code region;
• wherein in each of the code regions, at least one of the first sub code region and the second sub code region has a second color;
• wherein a code value of each one of the code regions is determined by which one of the first sub code region and the second sub code region thereof has the second color.

An optical decoding device comprising:

• an image sensor, configured to sense first sensing images and second sensing images, wherein the second sensing image comprises images of a code;
• a processing circuit, configured to determine a relative movement between the optical decoding device and an object according to the first sensing images;
• and
• a decoding device, configured to decode the second sensing images in a first mode to generate a decoding result and does not decode the second sensing images in a second mode;
• wherein the code comprises:
• at least one location region, for locating the code;
• and
• a plurality of code regions, wherein each one of the code regions comprises a sub code region representing a first code value, wherein the first code value of each of the code regions is determined according to a position of at least one of the sub code region in the code regions.