Abstract: Methods and systems for encoder parameter setting optimization. A media item to be provided to one or more users of a platform is identified. The media item is associated with a media class. An indication of the identified media item is provided as input to a first machine learning model. The first machine learning model is trained to predict, for a given media item, a set of encoder parameter settings that satisfy a performance criterion in view of a respective media class associated with the given media item. One or more outputs of the first machine learning model are obtained. The one or more obtained outputs include encoder data identifying one or more sets of encoder parameter settings and, for each of the sets of encoder parameter settings, an indication of a level of confidence that a respective set of encoder parameter settings satisfies the performance criterion in view of the media class associated with the identified media item.

Abstract: The disclosure extends to methods, systems, and computer program products for enhancing edges within an image in a light deficient environment, which utilizes knowledge of the expected noise pixel by pixel, to control the strength of the edge enhancement and thereby limit the impact of the enhancement on the perception of noise.

Abstract: The disclosure extends to methods, systems, and computer program products for enhancing edges within an image in a light deficient environment, which utilizes knowledge of the expected noise pixel by pixel, to control the strength of the edge enhancement and thereby limit the impact of the enhancement on the perception of noise.

Abstract: A clock synchronizing system and method for playback of a multimedia file is provided. A first device receives the multimedia file that includes at least an audio component and a video component. A second device receives the multimedia file from the first device. During a playback of the multimedia file, the first device renders the audio component by way of a first multimedia player and the second device renders the video component by way of a second multimedia player. The first device further transmits periodic clock information to the second device. The second device synchronizes a clock of the second multimedia player with a clock of the first multimedia player, based on the periodic clock information.

Abstract: A video is recorded on a recording medium so that a reproducing apparatus can faithfully reproduce an original color of the recorded video. An sRGB color space or an extended sRGB color space is specified as the color space of the video to be recorded. A signal processing unit generates a video signal corresponding to the specified color space. An encoding/decoding unit compresses the video signal in accordance with the MPEG4-AVC standard to generate a compressed video signal. A CPU generates a color space identifier including information indicating the color space specified and is configured so that an access unit including an SPS NAL unit in the compressed video signal includes an SEI NAL unit in which the color space identifier is stored. The video recorded on the recording medium includes the color space identifier having information for a color space of that video.

Abstract: To record a video signal on a recording medium for faithful reproduction A signal processing unit generates a video signal corresponding to a specified color space. An encoding/decoding unit performs data compression on the video signal in accordance with the MPEG4-AVC standard to generate a compressed video signal to be recorded on a recording medium. A CPU generates a color space identifier including information indicating the specified color space and is configured so that an access unit including an SPS NAL unit in the compressed video signal includes an SEI NAL unit in which the color space identifier is stored. The video signal recorded on the recording medium is a signal to which a color space identifier having information for a color space of that video signal is added.

Abstract: A playback device for updating a character string in synchronization with a moving image displays a gradation character using an available index in a color lookup table. The playback device includes a pre-analysis unit that pre-analyzes character-string display instruction information in a text subtitle stream, thereby recognizing in advance the available index in the color lookup table and displaying the gradation character using the available index.

Abstract: An image processing method and its associated image processing circuit for processing an image based on a sequential couleur avec memoire (SECAM) system are provided. The image includes a first pixel, a second pixel and a third pixel, which are successively arranged in a same vertical line and are respectively corresponding to a first image signal and a second image signal and a third image signal. The image processing method includes steps of calculating a chroma signal via a vertical filtering process according to the first image signal, the second image signal and the third image signal; calculating a chroma angular frequency via a frequency modulation process according to the chroma signal; and generating a chromaticity according to the chroma angular frequency.

Abstract: Color difference signals of demodulated video are vertically filtered to be converted into 4:2:2 signals before subjected to OSD synthesis, after which those signals are once again vertically filtered as a sort of scaling to obtain the output resolution. As filtering is carried out in two stages, the frequency characteristic deteriorates.

Abstract: An interface is realized that can prevent video signals from being copied easily and which uses a luminance/color difference signal transmission scheme with an excellent harmony with a television circuit. In a video transmission using a digital interface, colorimetry information for defining the conversion from the luminance/color difference signal into a primary color signal and video aspect ratio information are transmitted along with the luminance/color difference type video signal. This allows reproduction of video with high quality and high resolution and also realizes a copyright protection which allows only the users authorized by key information to use the content of the video. With this transmission scheme, it is possible to provide a transmitting apparatus, a receiving apparatus and an interface which highly harmonize with a rationalized television-based circuit.

Abstract: A video camera comprises an optic system 101, an image pickup element 102, a de-mosaicing (de-tessellating) process portion 103, frequency converter portions 104-106, a frame memory 124, parameter produce portions 125-127, noise reduction process portions 107-109, a frame memory 110, frequency converter portions 111-113, noise reduction process portions 114-116, frequency inverter portions 117-119, a brightness signal produce portion 120, a color difference produce portion 121, a coding process portion 122 and a recording medium 123. With the above-mentioned structures, it is possible to execute noise extraction depending on the characteristics of an input video signal, and also to obtain an effect of improving high S/N, but without producing deterioration of the picture quality, i.e., removing the noises of the picked up video, effectively.