摘要:
Video compression coding with partitioning of data into motion vector data and texture data with reversible Golomb-Rice type codes for the data. Resynchronization markers separate the data types, and the reversible coding permites decoding in both forward and backward directions to minimize data discarded due to errors.
摘要:
Video compression coding with partitioning of data into motion vector data and texture data with reversible Golomb-Rice type codes for the data. Resynchronization markers separate the data types, and the reversible coding permits decoding in both forward and backward directions to minimize data discarded due to errors.
摘要:
Video compression coding with partitioning of data into motion vector data and texture data with reversible Golomb-Rice type codes for the data. Resynchronization markers separate the data types, and the reversible coding permits decoding in both forward and backward directions to minimize data discarded due to errors.
摘要:
A method for inferring precise sensor attitude information in a tracking sensor system begins with storing at a first time a reference image in a memory associated with tracking sensor. Next, the method includes sensing at a second time a second image. The sensed image comprises a plurality of sensed feature locations. The method further includes determining the position of the tracking sensor at the second time relative to its position at the first time and then forming a correlation between the sensed feature locations and the predetermined feature locations as a function of the relative position. The method results in an estimation of a tracking sensor pose that is calculated as a function of the correlation. Because the method is primarily computational, implementation requires no new hardware in a tracking sensor system other than that which may be required to provide additional computational capacity.
摘要:
A system (10) for compressing video information includes an image detector (12) generating image information regarding a selected scene, a supplemental detector (13, 113, 213) generating supplemental information regarding the scene which is different from the image information, and a processing section (19, 119, 219). The processing section generates compressed information by processing the image information as a function of the supplemental information. The processing section may store the compressed information in a storage section (21), or may transmit the compressed information to a remote device through a communication link (26). The image detector may generate video images of the scene in response to visible light. The supplemental detector may generate images of the scene which represent heat or distance, or may determine the portion of the scene to which an eye (214) of an operator is directed.
摘要:
A digital still camera with capability for playback of audio and video with synchronization of video by a circular buffer containing frame buffers a with presentation time and display ready register for each frame buffer; a frame in a video sequence is decoded and stored in the next frame buffer when estimated decoding time precedes presentation time.
摘要:
A color resolution enhancement method and enhanced color cameras (600) with a single CCD detector (606) having attached color filters (604) and using luminance-based gradient interpolation to fill in color channels. A color camera, includes an image detector, the detector with sets S.sub.1, S.sub.2, . . . S.sub.N of pixels for N, an integer greater than 1, where pixels in the set S.sub.J detect radiation in a corresponding sampled channel C.sub.J for each J in the range 1 to N, a channel reconstructor coupled to an output of the detector. The reconstructor includes a luminance generator which combines the sampled channels C.sub.1, C.sub.2, . . . C.sub.N to a luminance channel, a gradient generator coupled to an output of the luminance generator and which transfers the luminance channel to a gradient channel, and a directional interpolator coupled to an output of the detector and to an output of the gradient generator and which transfers each of the sampled channels C.sub.1, C.sub.2, . . . C.sub.N to a corresponding reconstructed channel RC.sub.1, RC.sub.2, . . . RC.sub.N, and a reconstructed channel output.
摘要:
A video compression method and system including object-oriented compression with object boundaries described by maps of 2.times.2 (or larger) blocks of pixels in which at least a fraction of the pixels of such blocks are in the object.