Methods, systems and apparatus to improve image classification with boundary-bitmaps

A method to analyze an image, the method comprising:

• identifying, by executing an instruction with a processor, a foreground silhouette within the image;
• generating, by executing an instruction with the processor, a bounding box based on borders of the foreground silhouette;
• generating, by executing an instruction with the processor, an encoded silhouette matrix to identify cells of a foreground and cells of a background;
• convolving, by executing an instruction with the processor, the encoded silhouette matrix to generate a convoluted bitmap matrix;
• improving image classification efficiency by identifying, by executing an instruction with the processor, eligible blocks of the convoluted bitmap matrix by (a) retaining first respective cells of the convoluted bitmap matrix that satisfy a cell retention threshold, and (b) remove second respective cells of the convoluted bitmap matrix that do not satisfy the cell retention threshold.

A tangible computer-readable medium comprising instructions that, when executed, cause a processor to, at least:

• identify a foreground silhouette within an image;
• generate a bounding box based on borders of the foreground silhouette;
• generate an encoded silhouette matrix to identify cells of a foreground and cells of a background;
• convolve the encoded silhouette matrix to generate a convoluted bitmap matrix;
• improve image classification efficiency by identifying eligible blocks of the convoluted bitmap matrix by (a) retaining first respective cells of the convoluted bitmap matrix that satisfy a cell retention threshold, and (b) remove second respective cells of the convoluted bitmap matrix that do not satisfy the cell retention threshold.

A system to analyze an image, the system comprising:

• means for identifying a foreground silhouette within the image;
• means for generating a bounding box based on borders of the foreground silhouette;
• means for generating an encoded silhouette matrix to identify cells of a foreground and cells of a background;
• means for convolving the encoded silhouette matrix to generate a convoluted bitmap matrix;
• means for improving image classification efficiency by identifying eligible blocks of the convoluted bitmap matrix by (a) retaining first respective cells of the convoluted bitmap matrix that satisfy a cell retention threshold, and (b) remove second respective cells of the convoluted bitmap matrix that do not satisfy the cell retention threshold.