用于最大稳定极值区域处理的兴趣区域的参数选择及粗略定位

• Format: Patent
• Language: Chinese
• Published: 30.01.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; PHYSICS

基于现实世界的图像中的像素强度来计算属性，且所述属性用以识别用于处理所述图像的至少个输入以识别至少第最大稳定极值区域MSER。所述至少个输入为(A)用于MSER处理的参数或(B)待经受MSER处理的所述图像的部分中的者。所述属性可为像素强度的方差，或根据像素强度的直方图来计算。所述属性可与查找表起使用以识别用于MSER处理的参数。所述属性可为所述图像的经子取样版本的第二MSER的笔划宽度。所述属性可用于检查所述图像的部分是否满足预定测试，且如果是，那么在经受MSER处理的区域中包含所述部分。 An attribute is computed based on pixel intensities in an image of the real world, and thereafter used to identify at least one input for processing the image to identify at least a first maximally stable extremal region (MSER) therein. The at least one input is one of (A) a parameter used in MSER processing or (B) a portion of the image to be subject to MSER processing. The attribute may be a variance of pixel intensities, or computed from a histogram of pixel intensities. The attribute may be used with a look-up table, to identify parameter(s) used in MSER processing. The attribute may be a stroke width of a second MSER of a subsampled version of the image. The attribute may be used in checking whether a portion of the image satisfies a predetermined test, and if