Abstract: A product positioning method includes: collecting a product picture; performing integral image calculation on the product picture; and acquiring, according to the calculated integral image, coordinates of each vertex in the product picture by means of differential calculation. According to the present application, an integral image algorithm is applied to product positioning, such that when the product picture quality is not high, for example, the picture is blurry, and it is thus not convenient to position a product by using a picture edge algorithm or a template matching algorithm, the product picture and a background region can be quickly divided by using the integral image algorithm, thereby positioning the product and not being limited by poor picture quality.

Abstract: The present invention provides compositions and systems for delivery of nanocarriers to cells of the immune system. The invention provides nanocarriers capable of stimulating an immune response in T cells and/or in B cells. The invention provides nanocarriers that comprise an immunofeature surface and an immunostimulatory moiety. In some embodiments, the immunostimulatory moiety is an adjuvant. The invention provides pharmaceutical compositions comprising inventive nanocarriers. The present invention provides methods of designing, manufacturing, and using inventive nanocarriers and pharmaceutical compositions thereof.