Today, in today's rapid development of the security industry, with the continuous improvement of image resolution, frame rate, image intelligence detection, etc., in a series of processes such as coding, transmission, storage, decoding, forcing algorithms and chips to propose Higher requirements. Haisi has many years of experience in algorithms and chips, and Ma Mai has many years of experience in the security module and board design. In the process of continuous cooperation, during the optimization process, what will Mahaya and Haisi will collide? Spark? First, the encoding method evolves in the 10-year cooperation process, Ma Mai and Haisi mutual help, recently Ma Mai intelligently optimized for the Hi3516EV100, Hi3516CV300, XM530 and other chips, in its coding strategy, joined according to the brightness of the environment, Intelligent detection of moving objects, concerned with moving objects, makes the coding strategy more reasonable, effectively reduces the code rate, reduces the demand for transport bandwidth, decoding chips, hard disk capacity, saving customers. H.265AI: Ma Mai increases artificial intelligence technology on the basis of H.265, analyzes video content, interference such as noise, encoder does not distribute bandwidth, increase the weight of true target bandwidth, make video bandwidth The allocation is more reasonable and effectively reduces the stream. Second, intelligent encoding 1. According to the environmental brightness automatic adjustment code rate based on Scene Adaptive Coding Parameter Adjustment Policy (ISO) - Different Ambient Light Illumination, the extent of image content is also different. In the brightness environment, the texture details are relatively small, and this feature is used from adaptive coding parameters to further save code rates. After the environmental brightness automatic adjustment code rate optimization effect 1080p @ 30fps upgrade program, the light is sufficient at the time of the picture, and the light can save about 10% of the code rate. In a low brightness environment, the average can save about 20% of the code rate. Subjective quality is not lowered. 2. According to the moving object automatic adjustment code ratio When there is an object movement in the screen, distinguish between the motion zone screen and the stationary area screen, the motion zone appropriately reduces the quantization parameter QP to protect more picture details, in still no exercise or small movable object Regional increase quantization parameter QP to save code rate. 3. Intelligent Test Care Object Automatic Code Rate This technology is based on the result of front-end value target (e.g., human body) detection, intelligent analysis detects the sports body, and distinguishes with other screen moving objects, main strategies: in the valuable moving object field scene designs Rate, in the validity sports object (human body) scene, no decline, to ensure image quality. Intelligent detection of the automatic adjustment code rate optimization effect of the object, adjusting the decoding rate of 90% of the original code rate (the extent to which the code rate when there is no character), when there is a non-care object in the picture, average It can save about 18% code rate. When there is a motion of the object in the picture, an average can save about 9% of the code rate. Subjective quality is not lowered. The algorithm, the optimization of the chip determines the strength and performance of the product will be on the first floor. Mahaya products have taken the lead in configuring the latest technology chips. This upgrade will usher in the big wave of products upgrades. Read more
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