DxOMark, a digital product evaluation agency, announced that it will add mobile screen test to mobile phone camera and audio evaluation to help consumers have a more comprehensive understanding of device performance. The agency also said it updated 80% of its shooting plans to keep up with the latest camera technology. According to DxOMark, the size, resolution, technology (e.g. OLED or not) and refresh rate provided by mobile phone manufacturers do not indicate the quality of the screen. DxOMark screen evaluation tests screen quality from an end-user perspective, including more than 400 objective standard tests in the laboratory and real-world situations, and more than 20 hours of perceptual testing. < / P > < p > each DxOMark screen score contains six sub scores: readability, color, video, motion, touch and artifact. < / P > < p > the existing screen evaluation institutions such as displaymate tend to focus on hardware parameters, while DxOMark chooses to add “perception test”. How to ensure the scientificity of “perception test” and market recognition? DxOMark said that the perception test is based on the analysis of the engineer, but there is only a fixed conclusion, not an engineer to give a conclusion. < / P > < p > in terms of the new screen evaluation standard, DxOMark adds dynamic screen test and life experience test (in order to be closer to the actual use of users), which are possessed by the currently used evaluation indicators such as displaymate. DxOMark emphasizes that any test standard is stable for a long time to form a comparable evaluation system. < / P > < p > in the future, DxOMark can share samples of test reports, most of which are objective test results, and some are perceptual test results. They can describe in detail the specific way and content of the test. DxOMark said that in addition to the existing digital cameras and mobile phones, it will also actively explore and expand the evaluation scope to other digital product fields. < / P > < p > in the past few years, the DxOMark camera evaluation criteria have added shot, zoom, wide angle and night photography. This year’s updated 4th edition of the benchmark added a camera preview image quality test, as well as a so-called “credibility” test. < / P > < p > the credibility test aims to make the camera test benchmark more detailed. Each time a photo or video is taken, more characters, actions, low light and HDR rendering are added to the sample shot, and the scoring system is updated to make it closer to user needs. In addition, the automatic focusing test method is improved, and new objective tests are carried out under the laboratory low light, hand-held shooting and HDR conditions. < / P > < p > the benchmark also includes a preview score to assess the quality of the preview on the display before the shutter is pressed. The performance of camera App preview mode will give users a first impression of image quality, and may also have a significant impact on image effect. < / P > < p > if the preview viewframe does not match the viewframe of the captured image, it is difficult to get the correct view of the captured picture. If the preview image is too bright or too dark, the user may turn on exposure compensation incorrectly. In the worst case, if the image is bad in preview and doesn’t seem worth the shutter click, the user may miss a photo that might have been great. For example, DxOMark states that in the example scenario, there is the biggest difference between the preview image and the final image of Samsung Galaxy S10 +. Huawei’s P30 Pro preview results are relatively accurate; the iPhone 11 Pro can be said to be the best mobile phone, showing the final results after HDR processing in the preview display. After 12 years, “world class Super project” Shantou Bay Tunnel ushers in a historic breakthrough today