Patent ID: 8649586

Claim:
A color flow gain adjustment method, comprising: storing ultrasound image data within a preset time; calculating an abnormal pixel point ratio in a selected area of the stored ultrasound image data; and adjusting color gain based on a result of comparing the abnormal pixel point ratio and a preset threshold; wherein calculating the abnormal pixel point ratio in the selected area of the stored ultrasound image data comprises: judging abnormal pixel points in the selected area of the ultrasound image data according to preset threshold values on each gain level built into a system based on the ultrasound image data; and calculating the abnormal pixel point ratio according to judged abnormal pixel points, so as to acquire the abnormal pixel point ratio corresponding to each of the gain levels built into the system; wherein adjusting the color gain based comprises: comparing the abnormal pixel point ratio with the preset threshold, selecting a maximum abnormal pixel point ratio from abnormal pixel point ratios smaller than the preset threshold, and performing the color gain adjustment according to a gain level corresponding to the maximum abnormal pixel point ratio.