Traditional Culture Encyclopedia - Photography and portraiture - Vivo versus Huawei, who is the future of moving images?

Vivo versus Huawei, who is the future of moving images?

Where is the future of moving images? This is a question that is never conclusive, and different manufacturers often give different answers.

Brands led by Huawei and Samsung will think that image quality is the key to images. They built a camera module with large-size photosensitive elements as the core, and strived to convey the ultimate image quality performance to users. However, some manufacturers are trying to find a breakthrough in the quality of mobile phones. At present, the popular vivo X50 Pro takes the micro-pan/tilt as the innovation point, hoping that more ordinary users can take excellent, stable and clear photos in the whole scene.

The picture quality is left. If you have a certain photography foundation, you can bring imaging performance comparable to that of professional cameras. On the other hand, "easy shooting" is the welfare of ordinary users, which brings us the possibility of taking good photos without foundation-a story-telling memory jumps on the screen, and its meaning often transcends the boundaries of time and space. Maybe you don't understand how to use specific parameters such as resolution, exposure, focus and ISO to form an accurate picture, but the feelings conveyed are the same.

Let every ordinary person keep the memories and feelings about life in the most natural way, which is the mission that vivo X50 Pro hopes to achieve.

And vivo, it did it.

Taking pictures is the art of playing with light. The essence of mobile phone photography is no different from traditional photography, except that we used to use heavier cameras. Now, in order to meet the more convenient mobile demand, we are more willing to give this function to smart phones-easy to carry and easy to use. In recent years, mobile phone images have greatly surpassed cameras, and mobile phones have become the favorite "cameras" of ordinary people.

Let ordinary users put it down, and smartphones can't just pursue "image quality." In fact, people like to take pictures with their mobile phones because it is easy to image, and there is almost no learning cost. Anyone can image as long as they can press the shutter.

From this point of view, vivo X50 Pro is definitely the most "intelligent" image flagship at present, because it is the only product that emphasizes "easy shooting" in addition to image quality. Of course, it is not easy to do this. Behind it is vivo's long-term research and development, innovation and accumulation of imaging technology.

The user can get a photo with excellent quality at the moment of pressing the shutter, which requires the product to have extremely stable focusing, automatic exposure, white balance and color expression. In this respect, vivo has always been a good player. Since vivo Xshot, vivo has been focusing on the accumulation of automatic mode algorithms, and vivo X50 Pro, like a master, has achieved industry leadership in these points, almost all scenes, allowing users to shoot the best quality films with the most "stupid" operations.

The first is focusing. Vivo X50 Pro has almost the top focusing performance at present, which is reflected in two aspects-focusing speed and focusing accuracy. Like all mainstream image flagships, the focus motor of vivo X50 Pro has been fully optimized. Even in low light environment, focusing can be done without paranoia or procrastination, and there are few cases of pulling bellows.

Under the premise of extremely high focusing speed, the intelligent focusing logic of vivo X50 Pro greatly improves the overall focusing experience, which is far more important than the improvement of focusing speed. Combined with the central focus in photometry, vivo X50 Pro will have a certain focus prediction when the camera is turned on, and will give priority to finding the focused object in the center of the picture, but this process will not last long. Once the mobile phone finds that the object being photographed is on the edge of the picture or moving, it will quickly find and focus.

Regarding focusing performance, vivo X50 Pro has also inherited a series of advantages. For example, it has a set of intelligent motion focus tracking logic. When the picture is detected for portrait shooting, the mobile phone will limit the focus detection from human eyes and faces to the human body, and the mobile phone will default to the task with the largest proportion in the focus tracking picture to ensure that the protagonist does not lose focus during video and static shooting.

Secondly, the accuracy of metering and white balance of vivo X50 Pro is surprising. Based on central average metering, high-availability automatic metering will try its best to balance the look and feel of the picture, and it can provide stable metering performance even in scenes with strong contrast between light and dark. Due to the introduction of independent white balance sensor, compared with mainstream products, the white balance stability of vivo X50 Pro is also leading in the industry, which also brings unified color perception. This is extremely important in daily shooting. After all, stable hair color and white balance, coupled with stable exposure, mean that users can easily have an accurate prediction of film quality, which can further help ordinary users improve the film production rate.

Intelligent focusing, metering and hair color performance can greatly improve the film production rate of daily shooting, but it is not easy to save worry and use these two points. For a comparative case, as the flagship of the same top image, Huawei P40 Pro is recognized as "the first in image quality", but obviously Huawei P40 Pro is slightly inferior in focusing and metering performance.

The image quality of Huawei P40 Pro comes from11.28 inch super-large sensor. In daily shooting, a bigger sensor can bring better details, but many people don't know that it will also bring some inevitable troubles. For example, focusing mentioned just now is a big problem. Friends who use Huawei P40 Pro will definitely find that the closest focusing distance of P40 Pro main camera is farther than that of ordinary products, which is determined by the characteristics of large-size sensors and lenses. In Nissan shooting, if extreme macro shooting is taken, Huawei can only use digital zoom and stand far away. In addition, the shallow depth of field formed by the large-size sensor and the large-aperture lens will make the mobile phone unable to find the focus of near-object shooting, and the problem of bellows pulling occurs from time to time.

Vivo X50 Pro has no such embarrassment. In the near-object shooting, vivo has prepared two different schemes. First of all, it also takes advantage of the structural advantages of the super wide-angle camera. The nearest focusing distance of 2.5cm has been able to help users focus at a very long distance and shoot clear objects. And if you have some experience in taking pictures, you can open the 50mm portrait lens like me (Huawei P40 Pro lacks this 50mm portrait lens) and capture enlarged details from a distance, so that the photos taken are not only better in quality, but also closer to the perspective effect of human eyes.

The troubles caused by large-size sensors are not limited to these. Obviously, Huawei P40 Pro "slimmed down" the lens structure to ensure that the overall thickness can be compressed to 10 mm, but due to the lack of conical convex lens in the traditional lens structure, Huawei P40 Pro will inevitably have coma when shooting near objects. It can be seen that in the longest shooting distance of mobile phone 10cm, Huawei P40 Pro can only ensure the clarity of the in-focus picture, but can not form a clear and natural blur effect outside the focus, but form a comet-like spot dispersion, which is called coma in imaging.

In fact, the coma problem not only appears on Huawei P40 Pro, such as Samsung Galaxy S20 Ultra and Xiaomi 10 series, but also all products with super-large sensors have the same problem. At present, almost no manufacturer can solve this problem with a slim body.

Looking back, vivo X50 Pro is not so embarrassing. Thanks to the newly customized Sony IMX598 photosensitive element, it has found a new balance in image quality and volume. Although the photosensitive area of 1/2 inch looks the same as that of IMX586 used by mainstream flagship in the past, it is quite different in essence. IMX598 mainly improves the upper Bayer filter structure. The sensitivity of RGB three-color channels is increased by 12%, 10% and 12% respectively, and the overall sensitivity is also increased by 10%. Higher sensitivity will not only bring better shooting ability in low light, but also bring more delicate resolution in daily lighting environment.

Smart and fast autofocus, stable and beautiful color orientation and clear and clean detail presentation are the shooting effects that vivo X50 can achieve for users immediately after pressing the shutter. Behind its "easy shooting" is the performance support of countless cutting-edge hardware, and it is also the optimization accumulation of tens of thousands of hours by vivo imaging engineers. In the end, it is only for users to instantly harvest images.

During the day, vivo X50 can make ordinary people take good photos easily, and at night, the performance will not be much worse. In fact, when night falls, vivo X50 Pro begins to show its best state-based on the innovative micro-pan/tilt, it can almost ride off all opponents, providing excellent picture quality and bringing the most humanized experience.

As mentioned above, digital images, like traditional cameras, are also an art of light. The image enters the lens through light, and the captured information is transmitted to the photosensitive element behind the lens. After the user presses the shutter, tens of millions of photodiodes will accurately convert it into digital signals. Then, the digital signal processing unit in the camera will combine these digital information through a specific mode, and finally output a photo that is the same as the real environment. When shooting at night and in low light, it is extremely difficult to capture a clear picture due to the decline of lighting environment.

Therefore, in order to get a clearer and brighter picture in such a scene, long exposure is essential. But obviously, this involves a key factor-safe shutter time. In most cases, blurred and dithered images in low light often come from slow shutter speed. If you want to improve the success rate of shooting at this time, you need a corresponding anti-shake mechanism for your mobile phone.

At present, top equipment such as Huawei P40 Pro will provide optical anti-shake and electronic anti-shake mechanisms to improve the safety shutter time and ensure that users can play movies stably in the hand-held state in low light. The former moves the lens module through gyroscopes, motors, etc. , and remain stable; The latter uses software means such as operation, multi-frame synthesis and post-sharpening to eliminate image blur.

In fact, with the combination of optical image stabilization and electronic image stabilization, most products have acquired basic night scene shooting ability, and manufacturers have also derived the function of "super night scene". Huawei is one of the fans-relying on powerful computing power and low-light sampling more than 100 times, it not only ensures a safe shutter, but also suppresses more beautiful low-light photos.

Vivo X50 Pro is a master of these technologies. From the hardware point of view, micro-pan/tilt is completely an evolutionary version of optical anti-shake technology, which is more powerful than optical anti-shake in all aspects.

Because the automatic mode of vivo X50 Pro already has a certain super night scene algorithm combined with digital image stabilization, we tested the strength of micro-pan/tilt through manual mode. The results show that under the exposure time of110s, the success rate of vivo X50 Pro is close to 100%, and there are almost no mistakes, and there will be no problems such as fuzzy jitter of the previous optical anti-shake equipment. In fact, if you adjust the shutter time upwards, you will find that the shooting success rate of vivo X50 Pro is very high even at 1/2s. If you have confidence in your stability, you can even try the shutter time of1s. At this time, it is not impossible to take clear night photos in the hand-held state.

Compared with Huawei in manual mode, the result will be more obvious. In fact, in manual mode, Huawei's own extremely stable shutter is probably 1/30s- 1/20s. It's difficult to take a stable and clear picture when 1/20s is used to do experiments for colleagues.

If the manual mode is turned off and the night mode of the mobile phone is turned on, plus the blessing of the software algorithm, the night power of vivo X50 Pro will be more clear at a glance. In the urban night scene environment, vivo X50 Pro has almost the same analytical performance as P40 Pro, which not only has accurate exposure and stable color orientation, but also can clearly show complex lights, streets and even people walking in the city.

This may be difficult for many people to understand. Why can the low-light imaging quality of the equipment with a slightly smaller photosensitive element catch up with that of the outsole equipment?

Undoubtedly, micro-pan/tilt has played a vital role in it. Here we need to explain the principle of super night view. We know that the super night scene mode comes from the combination of multi-frame compound extended exposure technology. It divides the continuous exposure time into several shorter exposure times, some of which may last for thousands of seconds, and some may reach tens of seconds. In the longest 9 seconds, the mobile phone actually took hundreds of photos with different exposures. Subsequently, through the AI computing power of Kirin 990 5G chip, the mobile phone will synthesize the image according to the "determined frame" of short exposure, and finally draw a night scene photo with more outstanding brightness, dynamic range and details with constantly superimposed data.

However, there are some loopholes in this software algorithm itself. Huawei P40 Pro or devices with the same principle often rely heavily on "framing" and undertake the heavy responsibility of reflecting the details of the picture. The secret is that the exposure time of the "confirmation box" is often not too long. For example, in the super night scene mode of Huawei P40 Pro, the exposure time of the confirmation frame is only one hundredth of a second, which can only be roughly outlined by the equipment and cannot provide more intuitive information for subsequent synthesis.

Vivo X50 Pro is different. Because of the micro-pan-tilt, the exposure time of the picture can be extended when synthesizing the super night scene. At this time, there are more scene details as the basic proofs, and the subsequent synthesis effect is naturally more outstanding.

Of course, higher "quality" frames can also bring more accurate color information. It is not difficult to see from the proofs that the color of vivo X50 Pro with RGB traditional structure sensor is more pleasing, and the mouth-watering hot pot ingredients present correct color performance.

In the 0lux environment, the difference between the two seems to become more obvious. Through the long exposure in night scene mode, Huawei P40 Pro will synthesize a photo with clear details based on the 9-second extreme exposure. The exposure time of vivo X50 Pro is relatively shorter, only 5 seconds. It can be clearly seen that at this time, the picture of vivo X50 Pro is not only brighter, but also richer in details, while the overall color difference of Huawei P40 Pro is green.

Similar to ordinary lighting, vivo X50 Pro still provides an easy shooting experience. Almost at the moment when the user presses the shutter, it has been able to present a natural and delicate picture impression for the user, while traditional devices such as Huawei can only continue to rely on optical image stabilization and longer sampling to ensure the stability of the picture.

Compared with traditional equipment, the image strength of vivo X50 Pro is worthy of recognition. With the help of the algorithm accumulation of vivo, it almost presents the shooting advantage of the whole scene in the daytime environment. Brilliant colors, stable white balance and accurate and fast focusing performance are enough for ordinary people to take the most eye-catching photos. This technological advantage also continued into the evening. With the micro-pan-tilt, the experience of low-light shooting has been truly innovated, the problem of image quality has been solved, and the entry threshold for night shooting has been further lowered.

Breaking through the shackles of optics has always been the focus of the development of mobile images. Manufacturers led by Huawei and Samsung continue to dig deeper into the image quality, and vivo undoubtedly jumped out of the inherent thinking and expanded the image quality experience horizontally for the first time. And a small step of innovation has finally become the key for ordinary people to conquer the night.

We have reason to believe that vivo X50 Pro will open a new era of mobile phone images, and vivo has stood at the crossroads of change.