Indirect vision system, indirect vision display method, and interactive electronic rearview mirror system for vehicles

An indirect vision display method applied to an indirect vision system comprising a first camera device, a second camera device, a display device connected to the second camera device, and a processor connected to the first camera device and the second camera device, wherein the indirect vision display method comprising:

• shooting toward a first scene to capture a first image frame by the first camera device;
• shooting toward a second scene to capture a second image frame by the second camera device;
• computing a six-axis moving direction of a target point in a three-dimensional space by using a current first image frame and another of the first image frame of a reference time by the processor;
• computing a displacement between the target point and the display device in the six-axis moving direction by the processor;
• and
• changing a field of view of the second image frame shown on the display device according to the displacement by the processor.

An interactive electronic rearview mirror system for vehicles, comprising:

• a driver-camera device, arranged on a front side of the vehicle and interior of the vehicle and shooting toward a driver seat to capture a first image frame;
• a rear-camera device, arranged on a rear side of the vehicle and shooting toward a scene behind the vehicle to capture a second image frame;
• an electronic rearview mirror, arranged on the front side and interior of the vehicle, connected to the driver-camera device and the rear-camera device, and showing the second image frame toward the driver seat;
• wherein the driver-camera device performs operations of:
• computing a six-axis moving direction of a driver eye-point position in a three-dimensional space by using a current first image frame and another of the first image frame of a reference time;
• computing an upward-and-downward displacement and a left-and-right displacement of the driver eye-point position in the six-axis moving direction;
• computing a current perpendicular-plane displacement between the driver eye-point position and the electronic rearview mirror in the six-axis moving direction;
• when a variation of the current perpendicular-plane displacement is smaller than a standard deviation of all the perpendicular-plane displacements of a queue or the current first image frame is the Nth continuous image frame when the current perpendicular-plane displacement is greater than the standard deviation, storing the current perpendicular-plane displacement to the queue and update the standard deviation, wherein N is a positive integer;
• and
• changing the field of view of the second image frame shown on the electronic rearview mirror with upward-and-downward or left-and-right according to a first average of the upward-and-downward displacement or the left-and-right displacement, and scaling the field of view of the second image frame shown on the electronic rearview mirror according to a second average of all the perpendicular-plane displacements of the queue.