Image capturing device

Abstract

An image capturing device is provided. The image capturing device includes an image sensing circuit, a determination circuit and an output circuit. The image sensing circuit is utilized for capturing a first test image at a first time point and capturing a second test image at a second time point. The determination circuit is utilized for calculating a first image feature value associated with a color value of the first test image and a second image feature value associated with a color value of the second test image, calculating a difference value between the first image feature value and the second image feature value and comparing the difference value with a threshold value to generate a determination result. The output circuit is utilized for outputting the images generated by the image capturing device according to the determination result.

What is claimed is: 
     
         1 . An image capturing device, comprising:
 an image sensing circuit, for capturing a first test image at a first time point and capturing a second test image at a second time point;   a determination circuit, for calculating a first image feature value of the first test image and a second image feature value of the second test image, calculating a difference value between the first image feature value and the second image feature value, and comparing the difference value with a threshold value to generate a determination result, wherein the first image feature value of the first test image is associated with a color value of the first test image and the second image feature value of the second test image is associated with a color value of the second test image; and   an output circuit, for outputting the images generated by the image capturing device according to the determination result;   wherein the determination result indicates outputting the images generated by the image capturing device when the difference value is greater than the threshold value, and the output circuit accordingly outputs the images generated by the image capturing device.   
     
     
         2 . The image capturing device of  claim 1 , wherein the difference value is an absolute difference between the first image feature value and the second image feature value. 
     
     
         3 . An image capturing device, comprising:
 an image sensing circuit, for capturing a first test image at a first time point and capturing a second test image at a second time point;   a determination circuit, for calculating a first image feature value of the first test image and a second image feature value of the second test image, calculating a difference value between the first image feature value and the second image feature value, and comparing the difference value with a threshold value to generate a determination result, wherein the first image feature value of the first test image is associated with a brightness value of the first test image and the second image feature value of the second test image is associated with a brightness value of the second test image; and   an output circuit, for outputting the images generated by the image capturing device according to the determination result;   wherein the determination result indicates outputting the images generated by the image capturing device when the difference value is greater than the threshold value, and the output circuit accordingly outputs the images generated by the image capturing device.   
     
     
         4 . An image capturing device, comprising:
 an image sensing circuit, for capturing a first test image at a first time point and capturing a second test image at a second time point;   a determination circuit, for calculating a first image feature value of the first test image and a second image feature value of the second test image, calculating a difference value between the first image feature value and the second image feature value, and comparing the difference value with a threshold value to generate a determination result, wherein the first image feature value of the first test image is associated with a focal distance of the first test image and the second image feature value of the second test image is associated with a focal distance of the second test image; and   an output circuit, for outputting the images generated by the image capturing device according to the determination result;   wherein the determination result indicates outputting the images generated by the image capturing device when the difference value is greater than the threshold value, and the output circuit accordingly outputs the images generated by the image capturing device.