All main smartphone producers perceive that they depend on {hardware} and software program makers. Huawei is one of the best instance how an organization can endure if it doesn’t (can’t) cooperate with the highest corporations. That’s why they’re regularly switching to a technique of constructing “all the things” themselves. Xiaomi and Huawei have already begun designing their chips and software program, respectively. The following massive identify on this area is VIVO. We’ve been speaking in regards to the VIVO V1 imaging chip for some time. And immediately, following the schedule, the corporate took wraps off its ISP.
The VIVO V1 is the primary skilled imaging chip independently developed by the corporate. It opens the period of cell phone hardware-level algorithms.
On the occasion, VIVO additionally talked about its achievements within the cell phone imaging expertise, reminiscent of ultra-high clear glass lens, new coating expertise, and Zeiss pure coloration. By way of complete collaboration with Zeiss in imaging chips, optics, and software program algorithms, VIVO has vastly improved the evening capturing expertise.
First Independently-Developed Imaging Chip – VIVO V1
As the corporate stated, they’d an in-depth cooperation with cell phone SoC producers. It lasted 24 months. There have been over 300 folks in analysis and growth.
As a totally personalized built-in chip with particular specs, the VIVO V1 cooperates with the primary chip to supply suitable results and expertise. It additionally boasts of excessive computing energy, low latency, and low energy consumption.
The VIVO V1 cannot solely course of complicated calculations at excessive pace like CPU, but additionally full parallel processing of knowledge like GPU and DSP. Confronted with numerous complicated calculations, the VIVO V1 has an exponential enchancment in vitality effectivity ratio in comparison with DSP and CPU.
So as to maximize its simultaneous processing capability, VIVO optimizes the info storage structure and high-speed learn and write circuits contained in the chip to realize an equal 32MB giant cache. It surpasses a number of the present flagship desktop laptop processors to realize low-latency real-time noise discount and body insertion.
As well as, the calculation imaging algorithm within the VIVO V1 is superimposed. When processing duties with the identical quantity of calculation at excessive pace, in comparison with the way in which of software program implementation, the devoted algorithm reduces the facility consumption of the {hardware} circuit by 50%.
Extremely-low dispersion and high-transmittance glass lens
Due to house constraints, it’s tougher to realize an extra leap in taking photos with cell phones, and to improve the lens. So VIVO has invested so much in analysis and growth. After a number of rounds of verification with the Zeiss group, it lastly overcame the technical limitations reminiscent of course of and yield. Later, it realized high-spec glass lenses on cell phones, reaching excessive gentle transmittance, ultra-low dispersion, and powerful impact of thermal stability. All these vastly cut back the looks of flare ghosts when capturing evening scenes.
In contrast with plastic lenses, glass lenses have a pure benefit of low dispersion. VIVO’s ultra-low-dispersion and high-transmittance glass lenses additional cut back chromatic dispersion. Within the Abbe quantity (an authoritative indicator for measuring chromatic dispersion), it has achieved the business’s highest rating of 81.6. This breaks via the Abbe variety of cell phone lenses. It’s corresponding to skilled digital camera lenses.
The ultra-low dispersion and high-transmittance glass lens additionally achieves the next diploma of purity. The central transmittance is elevated to a most of 95%. Additionally, it adopts an AOA dynamic optical calibration course of to regulate the sharpness discount attributable to lens thickness error and lens eccentricity error to make sure the optical high quality of the ultimate lens.
A number of coatings to suppress glare and ghosting
Since its inception, Zeiss T* coating has at all times been Zeiss’s robust assure for high-quality imaging. Due to this, VIVO and Zeiss have joined fingers to use superior coating expertise to cell phone lenses.
Going through conventional business issues reminiscent of glare and ghosting, VIVO launched SWC coating expertise. Primarily based on the precept of bionics, the mirrored gentle is totally suppressed, and the reflectance is diminished to a minimal of 0.1%, which vastly improves the purity. As well as, VIVO solely launched the ALD atomic layer deposition course of to kind a nano-scale coating on the ultra-high-transmittance glass lens to additional cut back gentle reflection.
The issue of petal ghosting can be the shadow that can not be shaken off by cell phones. VIVO makes use of pigment spin coating expertise within the lens to unravel the issue of adhesion between pigment and blue glass. The coating thickness is as skinny as 2um. After greater than 10 totally different course of parameter changes, VIVO has lastly realized mass manufacturing.
