Non-transitory computer-readable storage medium for storing image compression program, image compression device, and image compression method

A compression encoding device for compressing and encoding image data of an image captured by an imaging device mounted to a vehicle, the compression encoding device comprising:

• a memory;
• and
• a processor coupled to the memory and configured to:
• execute first processing that includes acquiring image data of an image captured by an imaging device mounted to a vehicle;
• execute second processing that includes setting a segmented region in a reference image corresponding to an image to be compressed and encoded;
• execute third processing that includes enlarging the reference image so that a magnification rate of a segmented region including a periphery of the reference image is greater than a magnification rate of another segmented region including a center point of the reference image, the center point being a contact point of an optical axis of the image incident to the imaging device and an imaging element in the imaging device;
• execute fourth processing that includes generating a predictive image in accordance with the enlarged reference image;
• and
• execute fifth processing that includes compressing and encoding image data of the image to be encoded in accordance with the generated predictive image.

An image compression method performed by a computer, the method comprising:

• executing first processing that includes acquiring image data of an image captured by an imaging device mounted to a vehicle;
• executing second processing that includes setting a segmented region in a reference image corresponding to an image to be compressed and encoded;
• executing third processing that includes enlarging the reference image so that a magnification rate of a segmented region including a periphery of the reference image is greater than a magnification rate of another segmented region including a center point of the reference image, the center point being a contact point of an optical axis of the image incident to the imaging device and an imaging element in the imaging device;
• executing fourth processing that includes generating a predictive image in accordance with the enlarged reference image;
• and
• executing fifth processing that includes compressing and encoding image data of the image to be encoded in accordance with the generated predictive image.