OPPO Reno7: Portrait specialist with sophisticated technology and advanced artificial intelligence

As the first smartphone series to specialize in portrait photography, OPPO’s Renault series has introduced a new generation of smart portraits using groundbreaking technology and AI algorithms. With the recent launch of Reno7, OPPO has taken this portrait-centric experience to the next level with a combination of professional hardware and advanced algorithms that enable users around the world to create stunning portrait images in one click.

The first smartphone to integrate algorithms at the sensor level

Adequate light collection through image sensors is essential for sharp, clear and bright images. Through its extensive research in sensor technology, OPPO has consistently explored innovative ways to increase the sensitivity of light to sensors to deliver the highest quality images.

One such method is to adopt an RGBW (red, green, blue and white) pixel design. In fact, OPPO is already using the RGBW sensor design on the OPPO R7 Plus in early 2015, which has enabled it to increase its light sensitivity by up to 32%. However, despite the improved sensitivity, problems such as the limited computing capabilities of traditional image sensors and the signal crossstack between pixels meant that images taken using these primary RGBW sensors were prone to color and false color distortion. In 2019, OPPO’s Imaging R&D team was inspired by an article about the Quadra Binning method of adding two white sub-pixels to each red, green, and blue pixel so that each pixel was able to detect the time of their respective “color” signals and the white signal. Bright full spectrum. In the research paper, the research team also applied DTI (Deep Trench Isolation) technology so that each pixel can work independently without affecting the other.

After three years of developing and refining RGBW technology and the tireless work of over three hundred imaging engineers, OPPO has finally achieved the success they were looking for, acquiring 87 patents in the process.

The new RGBW pixel format, created by OPPO’s Imaging R&D team, super-imposes white sub-pixels on top of existing red, green and blue pixels.

In September 2019, OPPO and Sony officially began working together to create the next generation RGBW sensor. Further improvements and validation of the resistance transistor logic (RTL) of OPPO’s Quadra Binning algorithm were completed in April 2020, and four months later, the Quadra Binning algorithm was successfully integrated into the RGBW sensor, now known as the ultra-sensitive. IMX709 sensor. During development, OPPO’s imaging R&D team also works closely with chipmakers including Qualcomm and MediaTek to ensure compatibility with the best mobile SoCs to test compatibility on IMX709. Compared to the older IMX615, the IMX709 is capable of capturing 60% more light and delivers images with 35% less noise.

A new microlens arouses curiosity to discover the invisible world

Looking under a microscope gives us a new perspective on the world around us. With the addition of a 2MP micro lens to the OPPO Reno7 and support for 16.6x magnification in video and photos, OPPO has introduced a new way to maximize the experience and creativity and curiosity of smartphone photography.

OPPO Reno7’s micro lens provides a new perspective to the surrounding world

The inclusion of a microlane in the OPPO Reno7 seems to be the work of introducing an additional lens into the phone. At the structural level, OPPO has decided to install a microlens module on the back cover of the phone instead of mounting it directly on the motherboard. Since the phone has to be placed very close to the photographed object for the short focal length of the microlane, OPPO has added a new orbital light under the microlane to provide additional illumination when the microlane is activated. OPPO’s industrial design engineers worked to ensure that the design of the microlenses and orbit lights matched the OPPO Reno7’s superior appearance while delivering the expected shooting performance. Thanks to their ingenious work, no other device on the market like the Renault 7 Series has been able to capture the versatility, quality level and attention to detail.

Professional portrait photography developed by innovative image processing algorithms

In addition to hardware breakthroughs, OPPO Reno7 is equipped with innovative features powered by advanced image processing algorithms. This includes Portrait Bokeh Flair, HDR selfie And AI beautification. These features are the result of more than 10 years of research and development in imaging technology, as well as the latest breakthroughs in high-quality smartphone portrait photography.

Bokeh Flair portrait like DSLR

Portrait Bokeh Flair OPPO Reno7 enhances the features of the previous generation to provide more professional DSLR-like portraits. OPPO-owned Artificial Intelligence (AI) algorithms enhance the brightness of the human subject in the image while automatically blurring the background and increasing Bokeh bright spots. With just one click, the OPPO Reno7 can capture portrait images with rich light spots that resemble images taken with a high-end DSLR camera.

Comparison of photo with and without Bokeh Flair portrait

OPPO’s Imaging R&D team tested the algorithm Portrait Bokeh Flair More than 100 scenes to enhance portrait recognition and portrait cutting ability. New compared to previous generation features Portrait Bokeh Flair Provides more textured effects and enhances skin tone, especially in pictures with high color saturation. This allows the portrait subjects to be more distinct from the background, making them the focal point of the image.

HDR selfie

Backlighting can be one of the most difficult environments when taking photos, but with function HDR selfie With the OPPO Reno7 and IMX709 sensors, now sharper, brighter and more natural selfies are easier to take than ever before.

When those great selfies are instantly displayed on the screen of OPPO Reno7, various complex algorithms are working behind the scenes so that the users capture the best possible selfie image. The HDR algorithm uses multi-frame synthesis technology to suppress highlights and enhance the darker details of the image. In addition, a portrait pseudo-algorithm was tested on a large database of portrait images so that human objects in the image could be accurately identified. Next, the Bokeh algorithm optimizes image segmentation to reduce false Bokeh and ensures that the edges between the light and the background look natural. The size and color of the highlights as well as the radiance and tone of the skin are further improved.

Photo comparison with and without HDR selfies

AI beautification

OPPO continues to explore how AI algorithms can be used to meet the diverse photo editing needs of users around the world. AI beautification. Machine learning has been tested on 5,000 unique faces in 400,000 images, AI beautification The OPPO Reno7 recognizes 393 facial features to provide natural beautification effects for portrait photos and videos on the rear and front cameras. Beautification effects include AI stain removal and custom retouching for individuals in group photos.

Nice picture anytime, anywhere …

OPPO has not stopped pushing the boundaries of instant, high-resolution photography on its smartphones, as it aims to make taking high-quality photos as easy as possible in any situation.

Reno7 Flash Snapshot Motion Capture

Using the engine OPPO Image Clear Engine Built on the (ICE) OPPO Reno7, Flash Snapshot explodes multi-frame photos of ultra-short exposure photos and can capture crystal-clear images even when subjects are moving. Just pick up OPPO Reno7 and press the image shutter to capture any moment without worrying about blurry images. In addition, the 64-megapixel main camera offers amazing image processing capabilities. Resolution magnification algorithms can create higher-resolution images using sub-pixel transfers between multiple frames to synthesize 108MP extra-HD images, known as VD solutions. With OPPO Reno7’s Flash Snapshot and 108MP Ultra-Clear Images, amazing photos are at your fingertips anytime and anywhere.

Forward, OPPO will continue to focus on exploring new imaging possibilities through hardware and software advances, enabling the Renault series to bring more professional portrait photography to users around the world.

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