Monitoring system, monitoring method and program

A monitoring method comprising:

• capturing a moving image of a monitored area;
• generating a variation reduced image by reducing a temporal variation in an image, based on a plurality of moving-image making-up images included in the moving image captured in the image capturing;
• judging whether the variation reduced image generated in the variation reduced image generating satisfies a predetermined condition;
• when the variation reduced image is judged not to satisfy the condition in the judging, generating an output moving image which has a lower image quality than when the variation reduced image is judged to satisfy the condition in the judging, based on the moving image captured in the image capturing;
• and
• outputting the output moving image generated in the output moving image generating,
• wherein when the satisfaction judging section judges negatively, the output moving image generating section generates an output moving image including the variation reduced image generated by the variation reduced image generating section, and
• when the satisfaction judging section judges positively, the output moving image generating section uses the moving image captured by the image capturing section as an output moving image.

A non-transitory computer readable medium storing therein a program for a monitoring system, the program causing a computer to function as:

• an image capturing section that captures a moving image of a monitored area;
• a variation reduced image generating section that generates a variation reduced image by reducing a temporal variation in an image, based on a plurality of moving-image making-up images included in the moving image captured by the image capturing section;
• a satisfaction judging section that judges whether the variation reduced image generated by the variation reduced image generating section satisfies a predetermined condition;
• an output moving image generating section that, when the satisfaction judging section judges negatively, generates an output moving image which has a lower image quality than when the satisfaction judging section judges positively, based on the moving image captured by the image capturing section;
• and
• an output section that outputs the output moving image generated by the output moving image generating section,
• wherein when the satisfaction judging section judges negatively, the output moving image generating section generates an output moving image including the variation reduced image generated by the variation reduced image generating section, and
• when the satisfaction judging section judges positively, the output moving image generating section uses the moving image captured by the image capturing section as an output moving image.