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1. 发明申请

US20190200013A1 EMBEDDED MULTIMEDIA SYSTEMS WITH ADAPTIVE RATE CONTROL FOR POWER EFFICIENT VIDEO STREAMING 审中-公开
公开(公告)号：US20190200013A1
公开(公告)日：2019-06-27
申请号：US15855700
申请日：2017-12-27
申请人： OmniVision Technologies, Inc.
发明人： Jiyan Wu , Jilai Qian , Jun Wei , Shunbo Mou
IPC分类号： H04N19/115 , H04N19/164 , H04N19/177 , H04N19/42
CPC分类号： H04N19/115 , H04N19/152 , H04N19/164 , H04N19/177 , H04N19/42
摘要： A system includes an image sensor and a sending controller. The image sensor to generate video data at a source bit rate. The sending controller is coupled to the image sensor to transmit communication data representative of the video data. The sending controller includes one or more processors coupled to memory. The memory includes instructions, which when executed by the sending controller causes the system to perform operations. The operations include determining a first bit rate to encode a first portion of the video data, the first bit rate being different than the source bit rate. The operations also include generating a first video packet representative of the first portion by encoding the first portion at the first bit rate. The first video packet is stored in a video packet buffer of the system. The operations further include determining, in response to generating the first video packet, whether to transmit the first video packet as the communication data with the sending controller based on at least one of a transmission rate threshold, a transmission interval threshold, or a buffer fill threshold.

2. 发明申请

US20180316950A1 COMPRESSED VIDEO BUFFERING 审中-公开
公开(公告)号：US20180316950A1
公开(公告)日：2018-11-01
申请号：US16013603
申请日：2018-06-20
申请人： AVAGO TECHNOLOGIES GENERAL IP (Singapore) PTE. LTD.
发明人： Xuemin Chen , Yong Li
IPC分类号： H04N21/234 , H04N19/152 , H04N19/172 , H04N21/643 , H04N21/24 , H04N21/61 , H04N21/2662
CPC分类号： H04N21/23406 , H04N19/152 , H04N19/172 , H04N21/2401 , H04N21/2408 , H04N21/2662 , H04N21/6125 , H04N21/64322
摘要： A system controls a transmission of a sequence of compressed video data from an encoder buffer to a network for delivery to a decoder buffer. Control of the transmission includes to: determine characteristics of a video transmission path between the encoder buffer and the decoder buffer, the characteristics comprising at least one of a buffer size of the decoder buffer, an input rate of the decoder buffer, and a buffer size of an equivalent intermediary buffer of the video transmission path; determine a transmission rate from the characteristics of the video transmission path and from the sequence of compressed video data, the transmission rate being determined such that a target quality of service value can be guaranteed for the entire sequence of compressed video data transmitted at the determined transmission rate to the decoder buffer; and control transmission of the sequence of compressed video data at the determined transmission rate.

3. 发明授权

US10032485B2 Multimedia distribution system 有权
公开(公告)号：US10032485B2
公开(公告)日：2018-07-24
申请号：US15217894
申请日：2016-07-22
申请人： DIVX, LLC
发明人： Abou Ul Aala Ahsan , Stephen R. Bramwell , Brian T. Fudge
IPC分类号： H04N7/12 , H04N5/445 , G06F5/00 , G06F7/00 , G06F17/30 , G11B27/30 , G11B20/10 , G11B27/32 , H04N7/173 , H04N21/426 , H04N21/81 , H04N21/84 , H04N21/845 , H04N21/854 , H04N21/8543 , H04N21/858 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/149 , H04N19/61 , H04N19/107 , H04N19/117 , H04N19/126 , H04N19/186 , H04N19/152 , H04N19/154 , H04N19/18 , H04N19/192 , H04N19/48 , H04N19/80 , H04N19/85 , H04N19/577 , H04N19/625
CPC分类号： G11B27/3027 , G11B20/10 , G11B27/322 , H04N7/17318 , H04N19/107 , H04N19/117 , H04N19/126 , H04N19/149 , H04N19/152 , H04N19/154 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/192 , H04N19/196 , H04N19/198 , H04N19/48 , H04N19/577 , H04N19/61 , H04N19/625 , H04N19/80 , H04N19/85 , H04N21/42646 , H04N21/8106 , H04N21/8133 , H04N21/84 , H04N21/8455 , H04N21/8456 , H04N21/85406 , H04N21/8543 , H04N21/8586
摘要： A multimedia file and methods of generating, distributing and using the multimedia file are described. Multimedia files in accordance with embodiments of the present invention can contain multiple video tracks, multiple audio tracks, multiple subtitle tracks, a complete index that can be used to locate each data chunk in each of these tracks and an abridged index that can enable the location of a subset of the data chunks in each track, data that can be used to generate a menu interface to access the contents of the file and ‘meta data’ concerning the contents of the file. Multimedia files in accordance with several embodiments of the present invention also include references to video tracks, audio tracks, subtitle tracks and ‘meta data’ external to the file. One embodiment of a multimedia file in accordance with the present invention includes a series of encoded video frames, a first index that includes information indicative of the location within the file and characteristics of each encoded video frame and a separate second index that includes information indicative of the location within the file of a subset of the encoded video frames.

4. 发明授权

US09992252B2 Method and apparatus for adaptively compressing streaming video 有权
公开(公告)号：US09992252B2
公开(公告)日：2018-06-05
申请号：US14868941
申请日：2015-09-29
申请人： RGB SYSTEMS, INC.
发明人： Peter Lionel Smith
IPC分类号： H04N19/152 , H04N19/176 , H04L29/06
CPC分类号： H04L65/607 , H04N19/115 , H04N19/152 , H04N19/162 , H04N19/176 , H04N19/188 , H04N19/60 , H04N21/23805
摘要： The present invention is a method and apparatus for adaptively compressing and transmitting streaming video, preferably implemented in hardware as part of a codec, that adaptively applies a variable rate of compression to images in a video stream to optimize the quality attainable for a given transport bandwidth. In one or more embodiments, image frames from the video stream are divided into blocks, and a variable compression ratio compression engine compresses the blocks for transmission over a network. Depending on their compressed sizes, one or more of the compressed blocks are packaged into fixed size data packets for transmission over a network. The data packets are fed into a packet buffer. A packet servo releases packets from the buffer to achieve a desired transport data rate. The amount of compression applied by the compression engine is controlled based on the number of packets in the buffer. In one or more embodiments, a plurality of indexed compression vectors are predefined for the compression engine that provide increasing amounts of compression. In one or more embodiments, the index of the compression vector used by the compression engine is incremented when the buffer level of the packet buffer increases, and decremented when the buffer level decreases. In this manner the compression applied by the compression engine automatically adapts to changing entropy within the images of the video stream to optimize the video quality for a given transport data rate.

5. 发明申请

US20180152734A1 IMAGE PROCESSING APPARATUS AND METHOD 审中-公开
公开(公告)号：US20180152734A1
公开(公告)日：2018-05-31
申请号：US15880045
申请日：2018-01-25
申请人： SONY CORPORATION
发明人： Kazushi SATO
IPC分类号： H04N19/82 , H04N19/117 , G06T9/00 , H04N19/124 , H04N19/46 , H04N19/12 , H04N19/44 , H04N19/176 , H04N19/85 , H04N19/157 , H04N19/30 , H04N19/152 , H04N19/184 , H04N19/70 , H04N19/132
CPC分类号： H04N19/82 , G06T9/007 , H04N19/117 , H04N19/12 , H04N19/124 , H04N19/132 , H04N19/152 , H04N19/157 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/44 , H04N19/46 , H04N19/70 , H04N19/85
摘要： The present technology relates to an image processing apparatus and method that are capable of enhancing encoding efficiency while suppressing a decrease in the efficiency of encoding processing. The image processing apparatus includes an encoding mode setter that sets, in units of coding units having a hierarchical structure, whether a non-compression mode is to be selected as an encoding mode for encoding image data, the non-compression mode being an encoding mode in which the image data is output as encoded data, and an encoder that encodes the image data in units of the coding units in accordance with a mode set by the encoding mode setter. The present disclosure can be applied to, for example, an image processing apparatus.

6. 发明申请

US20180152713A1 VIDEO ENCODING APPARATUS, VIDEO DECODING APPARATUS, AND VIDEO DECODING METHOD FOR PERFORMING INTRA-PREDICTION BASED ON DIRECTIONALITY OF NEIGHBORING BLOCK 审中-公开
公开(公告)号：US20180152713A1
公开(公告)日：2018-05-31
申请号：US15880402
申请日：2018-01-25
申请人： ARISCALE INC.
发明人： Je Chang JEONG , Soon Jong JIN , Sang Jun PARK , Hyuk LEE
IPC分类号： H04N19/159
CPC分类号： H04N19/159 , H04N19/11 , H04N19/124 , H04N19/152 , H04N19/176 , H04N19/184 , H04N19/197 , H04N19/50 , H04N19/513 , H04N19/547 , H04N19/61
摘要： Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

7. 发明申请

US20180139456A1 ANALYTICS-MODULATED CODING OF SURVEILLANCE VIDEO 审中-公开
公开(公告)号：US20180139456A1
公开(公告)日：2018-05-17
申请号：US15843430
申请日：2017-12-15
申请人： CheckVideo LLC
发明人： Lai-Tee CHEOK , Nikhil GAGVANI
IPC分类号： H04N19/167 , H04N19/17 , H04N7/18 , H04N19/152 , H04N19/142 , H04N19/137 , H04N19/14 , H04N19/132 , H04N19/124 , H04N19/114 , H04N19/107 , H04N19/61 , H04N19/115 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/70 , H04N19/146 , H04N19/177
CPC分类号： H04N19/167 , H04N7/18 , H04N7/183 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/146 , H04N19/149 , H04N19/152 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/61 , H04N19/70
摘要： A method and apparatus for encoding surveillance video where one or more regions of interest are identified and the encoding parameter values associated with those regions are specified in accordance with intermediate outputs of a video analytics process. Such an analytics-modulated video compression approach allows the coding process to adapt dynamically based on the content of the surveillance images. In this manner, the fidelity of the region of interest is increased relative to that of a background region such that the coding efficiency is improved, including instances when no target objects appear in the scene. Better compression results can be achieved by assigning different coding priority levels to different types of detected objects.

8. 发明授权

US09967570B2 Image coding method and device for buffer management of decoder, and image decoding method and device 有权
公开(公告)号：US09967570B2
公开(公告)日：2018-05-08
申请号：US15676155
申请日：2017-08-14
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Young-o Park , Chan-yul Kim , Kwang-pyo Choi , Jeong-hoon Park
IPC分类号： H04N19/00 , H04N19/152 , H04N19/44 , H04N19/70
CPC分类号： H04N19/152 , H04N19/44 , H04N19/70
摘要： Provided are methods and apparatuses for encoding and decoding an image. Method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.

9. 发明授权

US09918093B2 Video encoding apparatus, video decoding apparatus, and video decoding method for performing intra-prediction based on directionality of neighboring block 有权
公开(公告)号：US09918093B2
公开(公告)日：2018-03-13
申请号：US15447055
申请日：2017-03-01
申请人： ARISCALE INC.
发明人： Je Chang Jeong , Soon Jong Jin , Sang Jun Park , Hyuk Lee
IPC分类号： H04N7/12 , H04N19/159 , H04N19/11 , H04N19/124 , H04N19/61 , H04N19/176 , H04N19/184
CPC分类号： H04N19/159 , H04N19/11 , H04N19/124 , H04N19/152 , H04N19/176 , H04N19/184 , H04N19/197 , H04N19/50 , H04N19/513 , H04N19/547 , H04N19/61
摘要： Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

10. 发明申请

US20180070086A1 COMPRESSED IMAGE DATA TRANSMITTING DEVICE, COMPRESSED IMAGE DATA TRANSMITTING AND RECEIVING SYSTEM, COMPRESSED IMAGE DATA TRANSMITTING METHOD, AND NON-TRANSITORY MEDIUM SAVING PROGRAM 审中-公开
公开(公告)号：US20180070086A1
公开(公告)日：2018-03-08
申请号：US15810580
申请日：2017-11-13
申请人： OLYMPUS CORPORATION
发明人： Yasuhiro Hasegawa , Shunsuke Suzuki
IPC分类号： H04N19/127 , A61B1/04 , A61B1/00 , H04N5/38 , H04N5/232 , H04N19/13 , H04N19/152 , H04N19/172
CPC分类号： H04N19/127 , A61B1/00011 , A61B1/00016 , A61B1/041 , A61B1/045 , H04N5/225 , H04N5/23206 , H04N5/38 , H04N19/13 , H04N19/132 , H04N19/152 , H04N19/172 , H04N2005/2255
摘要： A compressed image data transmitting device includes a compression unit dividedly reading captured image data from an image capturing element a plurality of times and performing a compression process on the captured image data to generate compressed image data; a determining unit determining whether a compressed image data occupancy ratio is equal to or larger than a predetermined threshold value; and a control unit instructing the compression unit to stop reading the captured image data when the compressed image data occupancy ratio is equal to or larger than the predetermined threshold value. When the captured image data which has not been read from the compression unit is present in the image capturing element, the control unit instructs the image capturing element not to perform the image capturing, and subsequently instructs the image capturing element to perform the image capturing operation after the above-mentioned captured image data is no longer present.

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