Long-exposure panoramic image photographing device and method

The invention discloses a long-exposure panoramic image photographing device. The device comprises: an image acquisition module used for acquiring images collected by a mobile terminal viewfinder in a timing way when receiving a long-exposure photographing instruction; an image projection module used for projecting the acquired images to a preset projection space to form corresponding projection images; a registration and fusion module used for carrying out position registration and pixel fusion on subsequent projection images having a plurality of visual angles and meeting preset projection conditions with a reference projection image one by one to form new reference projection images, until all of the acquired subsequent projection images are traversed; and a reverse projection module used for reversely projecting the output projection images to a coordinate space for the mobile terminal viewfinder to collect the images to generate a long-exposure panoramic image. The invention further discloses a long-exposure panoramic image photographing method. By adopting the long-exposure panoramic image photographing device and method disclosed by the invention, the adaptability of a mobile terminal to jitter in a long-exposure photographing mode is reinforced, and the long-exposure photographing function of the mobile terminal is used more conveniently.