Patent ID: 8810695

Claim:
An image sensing apparatus comprising: an image sensor configured to photoelectrically convert an incident light from an object; a defective pixel detection unit configured to detect a defective pixel of the image sensor based on an image signal generated by the image sensor, wherein the defective pixel detection unit determines a pixel to be a defective pixel based on a threshold value; and a control unit configured to control the image sensor to perform capturing operation with a first storage time in a case that a first defective pixel for irregularly outputting an abnormal level signal is detected by the defective pixel detection unit, and perform capturing operation with a second storage time which is longer than the first storage time in a case that a second defective pixel for regularly outputting an abnormal level signal is detected by the defective pixel detection unit, wherein a number of capturing times with the first storage time for detecting the first defective pixel is larger than the number of capturing times with the second storage time for detecting the second defective pixel, and a threshold value for detecting the first defective pixel is set lower than a threshold value for detecting the second defective pixel.