Method for compressing and decompressing video image data

A method for compressing and decompressing video image data of video image sequences or the like, which are present as a sequence of in each case in two-dimensionally addressable pixels of associated pixel data 3, wherein in each case the pixel data of selected pixel quantities are analyzed with mathematical functions and are compressed reduced to their function parameters and after storage and/or transmission are decompressed with a corresponding mathematical function such that they are largely regenerated, characterized in that in a basic analysis of the video data of a video image

• contours of image structures are determined on the basis of non-sequential changes in brightness and/or color value in the case of pixels that are adjacent to one another,
• through interpolation, a smoothing and closure of contours is performed,
• the contours that are found in this way are described in segments in each case through a parameterized mathematical function and are defined as objects, wherein all objects that contain a number of pixels below a predefinable threshold are assigned to a background,
• for the individual objects and the background a color dominance and color progression is determined vectorially in each case,
• the position and extent of the individual objects are determined vectorially in each case,
• for the individual objects and the background, a structure function is determined in each case according to direction and size,
• and that in the case of sequence analyses of video images,
• in each case the differential changes in brightness, size, position and orientation of the objects are determined, taking into account the common contours of objects that abut one another,
• the objects and the background that are defined in this way, together with their optical, positional and structural data that are obtained in this way, are arranged and provided in a structured basic frame or sequence frame,
• the basic frame data and sequence frame data that are provided accordingly are transformed into pixel data for decompression and image re-processing,
• in that from the basic frame data from the objects, their corresponding contour position data in the pixel image are determined,
• for the background of the image and the objects, respectively delimited on the basis of the contour position data, the pixel representation are [sic] filled up with pixel data corresponding to the given associated structure function,
• which are reconstituted in accordance with the color dominance value and the color progression vector as well as the brightness value, and
• the sequence frame data are applied in each case to the previous pixel representation for displacement and/or alteration
• 3 Translator's note:
• This literal translation of this sentence clause is based on a sentence clause with incoherent grammar in the German-language source document.