OPPO Reno5 Pro imaging system review
imaging system。The rear of the OPPO Reno5 Pro is equipped with 64MP main camera + 8MP ultra-wide angle + 2MP retro portrait + 2MP macro，Judging from the paper parameters, the specifications are not as good as Reno4 Pro，More like an upgrade based on Reno4。The official has not announced the specific model of the 64MP main camera yet，But from f/1.7 aperture、Looking at these extremely distinctive features of four-in-one equivalent 1.4μm，It is very likely that it is the popular OV64B。
OV64B uses 0.7 micron small dots、Four-in-one color filter array and on-chip hardware points recombination calculation to achieve a 64 million resolution image sensor，1600In the four-in-one mode, the number of single points is equivalent to 1.4 micrometers.。It has only 1/2" bottom，How effective depends more on the manufacturer's calibration level。Front-level aspects，Reno5 Pro is equipped with a classic 32 million front camera，f/2.4 aperture，0.8um single point size，1/2.8sensor。
Last month，OPPO INNO DAY 2020 up，A brand new set ofOPPO FDF full-dimensional portrait video technology system，It is called a release of OPPO's many years of beauty technology accumulation。The first new product equipped with OPPO portrait video technology system，It is the OPPO Reno5 series in our hands，It acts as a pioneer，Become a tryer early。
Specifically，The OPPO FDF full-dimensional portrait video technology system equipped in the Reno5 series consists of two major engines: perceived portrait and image quality enhancement.，Targeted optimization for the subject and overall picture of the portrait shooting，Realize human beauty、Jingmei's shooting effect，Adapt to single person、Multiple people，daytime、at night、Free creative work in various scenes such as backlight。Among them, AI face detection adopts a deep separable convolution model，The model is smaller and the calculation time is shorter，According to OPPO official data，Its face detection accuracy is as high as 99.78%，Single frame detection takes only 25ms，This is also for the AI ultra-clear portrait later、OFL skin quality optimization、A series of fine optimizations such as facial distortion correction provide a solid foundation。
First, let’s talk about the perception portrait engine，It has AI face detection、AI ultra-clear portrait、OFL skin quality optimization calculation、Facial distortion correction and other functions。According to official data，AI face detection passes optimization of network model，Achieve 99.78% detection accuracy and 25ms single-frame detection time。In actual experience，Whether it's video or photo shoot，OPPO Reno5 Pro can quickly detect face areas，Define precise ranges for subsequent face optimization。Simultaneously，AI calculation marks 296 key points in the face area to distinguish between facial features and contour details。
Go further，People identified by the above steps、gender、Age and other information。The mobile phone will follow the real makeup steps：Face judgment、Base makeup、Concealer、Shaping、Put on makeup，Match the most suitable makeup plan。So when taking photos of multiple people，Using OPPO Reno5 Pro to shoot can find that there are different dimensions of beauty optimization for men and women。
In this process，AI ultra-clear portrait designs three submodules to perform super-segment calculations on faces in deep neural network model、Noise reduction and sharpness optimization。even in dim light，It can also accurately detect face and adjacent areas through calculation and enhance processing，Improve facial clarity，More detailed details。
OFL skin color optimization calculation can perform AI processing on skin tone and skin color respectively，Help users remove facial blemishes during shooting、Optimize skin performance。According to official data，This calculation can achieve 96.5% of the skin area segmentation，Facial skin accuracy reaches 97.4%。"Skin Tone Detection" range not only includes facial skin，Also includes the skin of the neck and hands，Almost all areas of skin exposed when shooting portrait videos。
It is worth mentioning that，OFL skin quality optimization calculation can also achieve AI defect removal effect，Intelligent identification distinguishes the characteristics of natural characteristics and acquired defects，Achieve more natural flaw removal effect。spot、smallpox、Acquired defects such as eye bags will be removed，Innate facial features such as tear moles are preserved。
Whether it is taking pictures or recording videos，OPPO Reno5Pro supports rich and natural beauty effects，Not only can we detect 296 facial feature points to make the most suitable beauty optimization for the user.，Users can also manually perform "skin grinding"、thin face、big eyes、thin nose、jaw、Small face、Makeup、Level 100 subtle adjustments in eight dimensions, including three-dimensional，Customized exclusive private beauty effects。
Video shooting，Reno5 Pro also supports AI recognition customization and fine customization of 8-level 100-level beauty effects.，With the AI face detection function in OPPO FDF full-dimensional portrait video system，Reno5Pro will conduct high-speed detection of 296 key points on the faces of characters in the video at a rate of more than 200 frames per second.，Ensure accurate real-time identification and optimization，"Short-quality beauty" is not just a filter that causes other parts of the photos outside the face to be seriously affected.。
tested in practice，The identification and optimization process is quite stable，Even with fast movement，It will not appear and disappear like ordinary beauty camera software，Don't worry about the AI beauty that will lose its chain during shooting。Simultaneously，The exposure control and brightness uniformity of the entire picture are also better，During the process, we deliberately adjusted the brightness of the studio lights，The comparison model on the left side has overexposed the characters' faces，The Reno5 Pro, which enables AI video to beautify the beauty, has a much better look.，Although the brightness also changes，But the face of the characters is clearly visible throughout the whole process。
In complex light environments，OPPO Reno5 Pro also looks better in recognition and restoration of the skin tones of characters，The beauty effect is stable during dynamic process，The character's face brightened and did not cause the neon light highlights on the back to be overexposed。With the background brightness unchanged，Reno5 Pro accurately recognizes the character's skin，And targeted optimization，With the blessing of OPPO Reno5Pro's AI rejuvenating beauty，The skin tone of the character is fair and delicate，Acne is easily smoothed，The slight oily light on the face after working overtime is also processed for soft highlights，Skin has become the hydrated skin that everyone likes，The complexion has improved by several levels in an instant。
As for the beauty and photography effect, it is even more surprising。From the proofs，While human skin is moist and shiny，The delicate skin texture is preserved，The hair is still clear，Shows accurate optimization for facial skin，So the first impression is that people think the character's skin is good，Rather than simply violent skinning。The light makeup effect on the eyebrows and eyes also makes people feel very clean and natural，It won't look greasy and can't be smudged like ordinary beauty optimization。
The exposure level and dynamic range of Reno5 Pro are good in daily shooting，The partial backlight part of the sky has not been exposed，The details of the Christmas ornaments with the outlook in the shadow of the building have also been restored well，Greenland、Christmas tree、Colored ball、Some of the Snowman Red Hats and other parts are bright in color and the overall white balance is accurate。
OPPO Reno5 Pro can take high-quality night scene photos in automatic mode，After turning on night view mode，The overall performance of the sample will be further improved。For example, many highlights in the picture，Although the automatic mode has tried to control the highlight overflow range, it has not affected the overall viewing of the picture.，However, the control of highlights in the night view mode is better，More content has been restored，The overall brightness of the picture is more uniform，more details。
"Image quality enhancement" aspect。Image quality enhancement engine includes a new generation of super anti-shake computing、Mobile time-lapse photography、Super night view video，Can shake more heavily on the screen、Ensure satisfactory pictures in scenes such as insufficient light/overly bright。The most obvious change we've found from the OPPO Reno5 Pro is，Video super night view and LiveHDR function are combined into one from now on，Click the "AI" button to turn it on with one click。
Through actual experience, we found，OPPO Reno5 Pro's night view video shooting capabilities have been enhanced，Shooting in low-light environments can also make it brighter、Pure、More accurate、A clearer picture。LiveHDR can provide brighter even in strong light environments、More natural、Even backlighting is clear video effect。
Super night scene video is integrated with HDR computing based on previous generation algorithms，Debugging for brightness adjustment curves，Calculate the calculation first and intelligently determine whether the night view or HDR brightness adjustment curve will be enabled based on the current brightness environment.，Achieve more transparency、A better video effect。
Whether it is OPPO Reno5 Pro or its first OPPO FDF full-dimensional portrait video technology system，All emphasize the improvement of video capabilities，But from the experience these days，Its static imaging capability is also very good，Next, let's take a look at a few more samples。
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