Patent ID: 7656508
Filing Date: 2010-02-02
Classification: G01C,G01S

Abstract:
1. A distance measuring apparatus comprising: a detecting unit which detects first distance information to an object located in a predetermined detection range based on a difference between an outgoing wave sent to the object and a reflected wave from the object; an imaging unit which generates an image signal group corresponding to a predetermined imaging field including the predetermined detection range; a calculating unit which calculates second distance information to the object located in the imaging field based on the image signal group; an interpolating unit which either interpolates the second distance information by using the first distance information, or interpolates the first distance information by using the second distance information; and a calculation range setting unit which sequentially sets a calculation range in the calculating unit based on the detected value or the calculated value located in a vicinity of an image signal which is to be a calculation target, wherein the interpolating unit interpolates between detected values by the detecting unit with calculated values by the calculating unit, and wherein the calculating unit detects an image signal satisfying a predetermined condition out of the image signal group corresponding to the calculation range, and calculates the second distance information to the object located in the imaging field.