Vivo released the second-generation self-developed imaging chip V2

Vivo held a dual-core × imaging technology communication meeting. The in-depth cooperation between vivo and MediaTek was introduced at the meeting, and the second-generation self-developed imaging chip V2 was released.

Since 2021, vivo has launched two generations of self-developed chips, V1 and V1 +. This self-developed chip V2 adopts a new iterative AI-ISP architecture, which brings a comprehensive improvement in compatibility and functionality. The computing unit and image processing unit have been greatly upgraded. The FIT dual-core interconnection technology is proposed, and a new high-speed communication mechanism is established between the self-developed chip V2 and the Dimensity 9200 flagship platform so that two chips with completely different architectures and instruction sets can complete the dual-core interconnection synchronization within 1/100 of a second, which realizes the optimal coordination and high-speed collaboration of data and computing power.

Thanks to the near-memory DLA (Vivo self-developed AI deep learning accelerator) module and the large-capacity dedicated on-chip SRAM (high-speed and low-cost cache unit), the self-developed chip V2 has carried out a comprehensive analysis of computing power capacity, computing power density, and data density. Re-matching greatly increases the capacity and computing speed of the on-chip cache. Compared with the DDR external memory design usually adopted by the NPU, the theoretical maximum power consumption of SRAM data throughput can be reduced by 99.2%, and the energy efficiency ratio of the traditional NPU is improved by 200%.

The structure design of FIT dual-core interconnection and near-memory DLA enables the establishment of the AI-ISP architecture of the self-developed chip V2 and complements the ISP algorithm and computing power with the platform chip NPU to achieve the ultimate image processing effect and ultimate energy efficiency ratio.

At this communication meeting, vivo also brought advanced versions of self-developed image algorithms such as telephoto images, motion snapshots, and low-light snapshots. With the support of ProMEMC, vivo mobile imaging technology will be pushed to a new height.

The ultra-clear image quality engine with the optical super-resolution algorithm as the core can restore about 35% of the clarity information of the focal length above 5 times; Ultra Zoom EIS technology integrates the three modules of IMU, OIS, and EIS, in the process of high-magnification zoom shooting It can effectively offset the jitter and ensure the stability of the preview image, even when holding the camera.

In order to solve the shutter delay problem and shorten the gap between mobile phone shooting and professional cameras, vivo has developed "zero-latency" snapshots and a new generation of motion detection algorithms. By optimizing the image processing process, the sensor startup speed is improved, and the shutter delay time is shortened to 30ms, reaching the level of professional cameras.

In order to meet the full-scene imaging needs of professional users, vivo also realizes the dark-light capture function through algorithm overlay and full-link optimization of photography, which greatly improves the sensor’s photosensitive ability in dark-light scenes; through multi-frame fusion technology and self-developed RawEnhance 2.0, The algorithm realizes the superposition of moving pictures and eliminates smears, enabling users to easily capture high-quality dynamic pictures in low-light environments.

Vivo will launch the world's first Dimensity 9200 processor, which is developed based on TSMC's second-generation 4nm process technology. Vivo said that it had been involved in the research and development of the Dimensity 9200 flagship platform at a very early stage. The cooperation brings 5 ​​joint R&D functions centered on MCQ multi-cycle queue, King Glory adaptive image quality mode, chip eye protection, APU framework integration, and AI airport mode.

The MCQ multi-loop queue is a new processing engine redefined for the ultimate performance of the CPU. It can support up to 8 channels of data transmission between the CPU and UFS, making application software switching and background download wake-up faster and smoother.

The Glory of Kings adaptive image quality mode is a black technology jointly developed by vivo, MediaTek, and Glory of Kings, based on the MAGT game adaptive loop. After the adaptive function is turned on, under the 26°C environment, under the Honor of Kings 120 + extreme configuration for 1 hour, the game frame rate is close to full frame, and the mean square error is only 0.92, reaching the top level in the industry.

The chip eye protection technology monitors the proportion of blue light in the screen in real time, reduces blue light in real time through innovative algorithms, and hardens it into IP so that the proportion of high-energy visible blue light is less than 5%, and the degree of color shift is reduced by 12%. At the same time, the color effect of the screen is dynamically adjusted according to the monitoring results, so as to reduce the blue light and ensure that the screen does not have a color cast.

APU framework fusion is the hardware feature of vivo's sixth-generation APU based on the Dimensity 9200 flagship platform. It encapsulates the underlying general capabilities of MediaTek into the self-developed VCAP heterogeneous computing acceleration platform. In-depth optimization is realized from the bottom layer of the platform to the framework layer, allowing the algorithm to be coordinated among multiple processors, bringing about significant energy efficiency improvement, and launching functions such as camera ultra-clear documents and live texts.

The AI ​​airport mode can achieve an average energy saving of 30% during the user's flight; after the flight mode is turned off, the network connection can be quickly restored within 1.52 seconds, making the network recovery one step faster.

To joint research and development: Vivo and MediaTek have also jointly adjusted a number of details to help the Dimensity 9200 flagship platform exert its extreme performance, and the AnTuTu Lab has scored more than 1.28 million.

In the game scene, vivo brings technologies such as game super-scoring, and optimizes the game experience in multiple links and all directions through the rapid start engine and network acceleration engine; in the video scene, for the first time, it realizes advanced technology with extreme low power consumption. The circular parallax network greatly optimizes energy efficiency performance, reducing energy consumption by 15%. Especially in the 4K 60-frame extreme video scene, the power consumption of the Dimensity 9200 is 25% lower than that of the Dimensity 9000.

Post a Comment