Abstract: An object detection method and an object detection apparatus are disclosed. In the object detection method, a bitstream of a progressively encoded JPEG image is fetched from an image supply device, wherein the bitstream includes a header and a subset of a plurality of discrete cosine transform (DCT) coefficients of the JPEG image, the subset of the DCT coefficients is decoded according to information in the header to reconstruct a coarse scan image of the JPEG image; and an object detection is performed on the coarse scan image to detect an object in the JPEG image.

Abstract: An anti-spoofing authentication system includes an image capture device that converts received light into a voice signal representing a captured image; a microphone that converts sound wave into a voice signal; a face detection device that detects a human face on the captured image, the face detection device including a lip detection device that detects lip features associated with the detected human face; a voice activity detection (VAD) device that detects presence of human voice in the voice signal; and an anti-spoofing device that detects a spoofing attack according to the detected lip features and the detected human voice.

Abstract: A voice activity detection (VAD) system includes a voice frame detector that detects a voice frame during which a voice signal is not silent; and a voice detector that detects presence of human speech according to the voice frame.