Oppo big show black technology, launched two new systems: FDF full-dimensional portrait video technology and full link color management

On November 18, oppo launched the oppo FDF full-dimensional portrait video technology system at the “future science and Technology Conference 2020” on November 18. This is a release of oppo’s years of beauty technology accumulation, an evolution in the field of portrait aesthetics, and an innovation in the era of 5g video. It is revealed that the first new product equipped with oppo full-dimensional portrait video technology system will be launched in December. < / P > < p > in addition, oppo has another important innovation technology officially unveiled at the conference, namely, the oppo full link color management system, which is the first Android full link color management system designed for the future era of wide color gamut and high color depth. Oppo find X3 series will be installed with this system for the first time. < / P > < p > “image has always been the track that oppo insists on and will adhere to for a long time. In terms of image product definition, we always insist on starting from users. In order to let users shoot natural, confident and moving portrait works, we have launched magic mirror project internally. We have conducted in-depth discussions in different cities and Reno series old users, terminal shopping guides, portrait retouching experts and makeup experts, who think it is a good shot The portrait video. Surprisingly, almost everyone thinks that a good portrait video should not only be beautiful, but also beautiful. Based on this insight, we have built the oppo FDF full-dimensional portrait video technology system. ” Oppo imaging product manager Tian Zhijian said. According to the introduction, oppo FDF full-dimensional portrait video technology system is composed of two engines: perception of human image and enhancement of image quality. It optimizes the main body and the whole picture respectively during portrait shooting, and jointly realizes the shooting effect of human beauty and scenery beauty. Whether it is a single person or multiple people, daytime, night or backlight, it can achieve full time video creation freedom. < p > < p > specifically, the perceptual portrait engine has the functions of AI face detection, AI super clear portrait, ofl skin texture Optimization algorithm, and face distortion correction. It refuses to be stereotyped, and makes the photos more natural, real and moving. < / P > < p > and AI face detection can achieve 99.78% detection accuracy and 25ms single frame detection time by optimizing the network model. Whether it is taking video or taking photos, it can quickly detect the face area and delineate the accurate range for subsequent face optimization. At the same time, the AI algorithm marks 296 key points in the face area to distinguish facial features and contour details, and adds auxiliary information such as whether the key points are visible or not, and the face angle judgment. Finally, it realizes NME as low as 4.71% on the authoritative wflw data set in the industry. The running frame rate of this algorithm on the mobile platform reaches more than 200fps. In addition, three sub modules are designed in the depth neural network model of AI super clear portrait to perform the super score calculation, noise reduction optimization and sharpness optimization of human face. The ofl skin texture Optimization algorithm can process skin color and skin texture separately, and help users remove facial defects, optimize skin performance, and make the overall appearance more outstanding. This algorithm can segment 96.5% of the skin area, and the accuracy of the facial skin reaches 97.4%. “Skin color detection” covers not only the skin of the face, but also the skin of the neck and hands. It covers almost all the skin areas that will be exposed when shooting a portrait video. < / P > < p > ofl skin texture Optimization algorithm can also achieve the effect of removing defects by AI, and intelligently distinguish the features of natural features and acquired defects, so as to achieve a more natural effect of removing defects. Blemishes and blemishes will be removed from the face and the eye bag will be retained. < / P > < p > another innovative technology introduced by oppo at the “future science and Technology Conference 2020” is the oppo full link color management system, which is also the first Android full link color management system designed for the future era of wide color gamut and high color depth. According to the introduction, oppo full link color management system includes two core technologies: full link 10bit and color management. The full link 10bit covers the whole image processing process of acquisition, coding, storage, decoding and display, and has the ability to process 10bit data in each link, so as to solve the problem of incompatibility of the underlying system for 10bit image information. At the same time, this is also the first time in the mobile phone industry to achieve full link 10 bit picture and video shooting. < / P > < p > in image acquisition, oppo’s full link color management system will be equipped with hardware level stack dol-hdr technology. Dol-hdr technology supports continuous output of long, medium and short exposure frames, and can eliminate the output time interval of different frames. Compared with the traditional time domain multi frame HDR technology, dol-hdr technology has higher signal-to-noise ratio, higher dynamic range, and can avoid ghost phenomenon. < / P > < p > oppo’s full link color management will adopt more advanced heif format for packaging and storage. Heif format supports 16 bit image data storage capacity at most, and has more advanced compression algorithm. Compared with JPEG format, heif format can save 50% storage space for the same image information. In addition, oppo full link color management system reconstructs the original 8 bit image decoder and develops a 10 bit image decoding scheme. At the same time, the original memory data is modified to adapt to the storage structure of 10bit image data, and the decoding link is fully supported for 10bit image information. < / P > < p > color management is another core technology in oppo full link color management system. By unifying the color temperature consistency of different color gamut and processing the color gamut coordinate data in different times, it can solve the problem of color deviation caused by different color gamut description at the acquisition and display end, and can bring users more accurate visual experience. What is worth looking forward to is that oppo said that in 2021, the find X3 series will be equipped with a full link color management system. Video Number assistant internal test online! Four functions let you send 1g video on the computer

Author: zmhuaxia