Residual frame

About: Residual frame is a research topic. Over the lifetime, 4443 publications have been published within this topic receiving 68784 citations.

Video processing method and apparatus

Abstract: A video processing method and apparatus for processing video frames comprising animated images so as to blur movement of the animated images between successive frames, the method or apparatus comparing a first input frame with the following input frame; identifying moving areas in the first input frame by the comparison; calculating the velocity of the movement of the moving areas between the first and following input frame; summing, only for each input pixel site within the identified moving areas of the input frame, the pixel value of each input pixel site and adjacent pixel values determined according to the calculated velocities and a predetermined aperture type for the input frame; and providing an output frame from at least the summed pixel values and pixel values of areas of the input frame other than the moving area, the adjacent pixel values either being the pixel values of pixel sites in the input frame which are spatially adjacent in the direction of the velocity or predicted temporally adjacent pixel values for each input pixel site for times intermediate the predetermined aperture time.

Digital video editor having lost video frame protection

Abstract: A digital video editing apparatus in which the frame number information that is encoded in non-visible portions of frames in an analog video signal is utilized to ensure that there are no missing frames of corresponding digital video information. The frames of analog video information are digitized and stored in the editing apparatus using a two-pass procedure. In the first pass, as many analog video frames as possible are digitized and stored, and the frame numbers from the frames are utilized to form a list of missing frames. In the second pass, the missing frame list is utilized to reposition the analog video source and to read in the missing frames. If desired, a digital frame trap may be provided such that the contents of a temporary frame memory are frozen until computer processing apparatus has enough time permanently to store the trapped frame. Once a complete set of digital frames has been converted and stored, digital video editing may be undertaken, and the edited digital frames may be outputted in analog form.

Method of reordering a decoded video picture sequence

Abstract: This invention details a new method of performing frame reordering for decoded digital video picture. By making use of the information on the incoming picture type and the location of the stored bi-directionally predicitive (B) coded, frame in the frame buffer, the frame sequencer can adaptively perform frame reordering for sequence with and without B frame. In addition, the frame reordering is achieved with shorter frame delay and with smaller frame memory.

Method of analysing a video of sports motion

Abstract: The invention is directed to a method, apparatus, system and computer program product for analysing video images of a sports motion and, in particular, to identification of key motion positions within a video and automatic extraction of segments of a video containing a sports motion. Video data displaying a sports motion comprises data representative of a number of image frames. For a number of image frames, one or more frame difference measures are calculated between the image frame and another image frame. The frame difference measures are analysed to identify a plurality of image frames that each show a key position of the sports motion. The segment of the video containing the sports motion showing the sports motion is between two of the image frames showing the key positions. Frame difference measures may be calculated based on pixel difference measures or optical flow techniques.

Packet loss compensation

Abstract: The invention relates to enabling a compensation of packet losses in a packet based transmission of data frames, wherein packets provided for transmission include a first type of frames corresponding to a respective data frame encoded using a first bit rate coding mode and a second type of frames corresponding to a respective data frame encoded using a second bit rate coding mode. In order to limit the processing power in the packet generation, parameters are extracted from a data frame which is to be transmitted in accordance with the first bit rate coding mode. The extracted parameters are quantized in accordance with the first bit rate coding mode to obtain quantized parameters forming a frame of the first type. In addition, a frame of the second type is generated based on the parameters extracted for the frame of the first type and/or on the quantized parameters of the frame of the first type.