Electronic device and object detection method thereof

Abstract

A object detection method includes: receiving a plurality of blocks of the image information; performing a block-based discrete cosine transform (DCT) on a plurality of blocks to obtain a plurality of DCT-coefficient blocks respectively, wherein the DCT-coefficient block comprises a DC coefficient and a plurality of AC coefficients corresponding to difference frequencies; performing a Zig-Zag scanning operation on the plurality of DCT-coefficient blocks to obtain a plurality of DCT-coefficient strips respectively; concatenating at least two different DCT-coefficient strips as a modified DCT-coefficient strip; and performing an object detection operation by feeding the modified DCT-coefficient strip to a convolution neural network device.

Dependencies are inferred from the claim text.