Automation and industrialization is the trend of pig industry. Real-time detection of parturition is one of the key technologies of sow automation farming. Video image features of sows parturition were analyzed to detect sows parturition by recognizing piglet. The moving objects were detected based on the improved single Gaussian model. Disturbance of sow moving was removed by the arithmetic of matching semi-circle. According to the color and size characteristics of newborn piglets,targets were recognized. ...